Tl494. Circuito Integrado Pwm PDF

7/30/2019 Tl494. Circuito Integrado Pwm PDF

1/20

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F E A T U R E S

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1IN+

1IN

FEEDBACK

DTC

CT

RT

GND

C1

2IN+

2IN

REF

OUTPUT CTRL

VCC

C2

E2

E1

D, DB, N, NS, OR PW PACKAGE

(TOP VIEW)

D E S C R I P T I O N

T L 4 9 4

P U L S E - W I D T H - M O D U L A T I O N C O N T R O L C I R C U I T S S L V S 0 7 4 E J A N U A R Y 1 9 8 3 R E V I S E D F E B R U A R Y 2 0 0 5

C o m p l e t e P W M P o w e r - C o n t r o l C i r c u i t r y

U n c o m m i t t e d O u t p u t s f o r 2 0 0 - m A S i n k o r S o u r c e C u r r e n t

O u t p u t C o n t r o l S e l e c t s S i n g l e - E n d e d o r

P u s h - P u l l O p e r a t i o n I n t e r n a l C i r c u i t r y P r o h i b i t s D o u b l e P u l s e a t

E i t h e r O u t p u t

V a r i a b l e D e a d T i m e P r o v i d e s C o n t r o l O v e r

T o t a l R a n g e

I n t e r n a l R e g u l a t o r P r o v i d e s a S t a b l e 5 - V R e f e r e n c e S u p p l y W i t h 5 % T o l e r a n c e

C i r c u i t A r c h i t e c t u r e A l l o w s E a s y S y n c h r o n i z a t i o n

T h e T L 4 9 4 i n c o r p o r a t e s a l l t h e f u n c t i o n s r e q u i r e d i n t h e c o n s t r u c t i o n o f a p u l s e - w i d t h - m o d u l a t i o n ( P W M ) c o n t r o l

c i r c u i t o n a s i n g l e c h i p . D e s i g n e d p r i m a r i l y f o r p o w e r - s u p p l y c o n t r o l , t h i s d e v i c e o f f e r s t h e f l e x i b i l i t y t o t a i l o r t h e p o w e r - s u p p l y c o n t r o l c i r c u i t r y t o a s p e c i f i c a p p l i c a t i o n .

T h e T L 4 9 4 c o n t a i n s t w o e r r o r a m p l i f i e r s , a n o n - c h i p a d j u s t a b l e o s c i l l a t o r , a d e a d - t i m e c o n t r o l ( D T C ) c o m p a r a t o r , a p u l s e - s t e e r i n g c o n t r o l f l i p - f l o p , a 5 - V , 5 % - p r e c i s i o n r e g u l a t o r , a n d o u t p u t - c o n t r o l c i r c u i t s .

T h e e r r o r a m p l i f i e r s e x h i b i t a c o m m o n - m o d e v o l t a g e r a n g e f r o m 0 . 3 V t o V C C 2 V . T h e d e a d - t i m e c o n t r o l c o m p a r a t o r h a s a f i x e d o f f s e t t h a t p r o v i d e s a p p r o x i m a t e l y 5 % d e a d t i m e . T h e o n - c h i p o s c i l l a t o r c a n b e b y p a s s e d b y t e r m i n a t i n g R T t o t h e r e f e r e n c e o u t p u t a n d p r o v i d i n g a s a w t o o t h i n p u t t o C T , o r i t c a n d r i v e t h e c o m m o n c i r c u i t s i n s y n c h r o n o u s m u l t i p l e - r a i l p o w e r s u p p l i e s .

T h e u n c o m m i t t e d o u t p u t t r a n s i s t o r s p r o v i d e e i t h e r c o m m o n - e m i t t e r o r e m i t t e r - f o l l o w e r o u t p u t c a p a b i l i t y . T h e T L 4 9 4 p r o v i d e s f o r p u s h - p u l l o r s i n g l e - e n d e d o u t p u t o p e r a t i o n , w h i c h c a n b e s e l e c t e d t h r o u g h t h e o u t p u t - c o n t r o l f u n c t i o n . T h e a r c h i t e c t u r e o f t h i s d e v i c e p r o h i b i t s t h e p o s s i b i l i t y o f e i t h e r o u t p u t b e i n g p u l s e d t w i c e d u r i n g p u s h - p u l l o p e r a t i o n .

T h e T L 4 9 4 C i s c h a r a c t e r i z e d f o r o p e r a t i o n f r o m 0 C t o 7 0 C . T h e T L 4 9 4 I i s c h a r a c t e r i z e d f o r o p e r a t i o n f r o m 4 0 C t o 8 5 C .

A V A I L A B L E O P T I O N S

P A C K A G E D D E V I C E S ( 1 )

S H R I N K S M A L L T H I N S H R I N K TA S M A L L O U T L I N E P L A S T I C D I P S M A L L O U T L I N E O U T L I N E S M A L L O U T L I N E

( D ) ( N ) ( N S ) ( D B ) ( P W )

0 C t o 7 0 C T L 4 9 4 C D T L 4 9 4 C N T L 4 9 4 C N S T L 4 9 4 C D B T L 4 9 4 C P W

4 0 C t o 8 5 C T L 4 9 4 I D T L 4 9 4 I N

( 1 ) T h e D , D B , N S , a n d P W p a c k a g e s a r e a v a i l a b l e t a p e d a n d r e e l e d . A d d t h e s u f f i x R t o d e v i c e t y p e ( e . g . , T L 4 9 4 C D R ) .

P l e a s e b e a w a r e t h a t a n i m p o r t a n t n o t i c e c o n c e r n i n g a v a i l a b i l i t y , s t a n d a r d w a r r a n t y , a n d u s e i n c r i t i c a l a p p l i c a t i o n s o f T e x a s I n s t r u m e n t s s e m i c o n d u c t o r p r o d u c t s a n d d i s c l a i m e r s t h e r e t o a p p e a r s a t t h e e n d o f t h i s d a t a s h e e t .

P R O D U C T I O N D A T A i n f o r m a t i o n i s c u r r e n t a s o f p u b l i c a t i o n d a t e . C o p y r i g h t 1 9 8 3 2 0 0 5 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d P r o d u c t s c o n f o r m t o s p e c i f i c a t i o n s p e r t h e t e r m s o f t h e T e x a s I n s t r u m e n t s s t a n d a r d w a r r a n t y . P r o d u c t i o n p r o c e s s i n g d o e s n o t

n e c e s s a r i l y i n c l u d e t e s t i n g o f a l l p a r a m e t e r s .


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GND

VCC

Reference

Regulator

C1

Pulse-Steering

Flip-Flop

C1

1D

DTC

CT

RT

PWMComparator

+

Error Amplifier 1

0.1 V

Dead-Time Control

Comparator

Oscillator

OUTPUT CTRL

(see Function Table)

0.7 mA

E1

C2

E2

+

Error Amplifier 2

1IN+

1IN

2IN+

2IN

FEEDBACK

REF

6

5

4

1

2

16

15

3

13

8

9

11

10

12

14

7

Q1

Q20.7 V

T L 4 9 4


F U N C T I O N T A B L E

I N P U T T O O U T P U T F U N C T I O N

O U T P U T C T R L

VI = G N D S i n g l e - e n d e d o r p a r a l l e l o u t p u t

VI = Vr e f N o r m a l p u s h - p u l l o p e r a t i o n

F U N C T I O N A L B L O C K D I A G R A M

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A b s o l u t e M a x i m u m R a t i n g s ( 1 )

R e c o m m e n d e d O p e r a t i n g C o n d i t i o n s

T L 4 9 4


o v e r o p e r a t i n g f r e e - a i r t e m p e r a t u r e r a n g e ( u n l e s s o t h e r w i s e n o t e d )

M I N M A X U N I T

VC C S u p p l y v o l t a g e ( 2 ) 4 1 V

VI A m p l i f i e r i n p u t v o l t a g e V C C + 0 . 3 V

VO C o l l e c t o r o u t p u t v o l t a g e 4 1 V I O C o l l e c t o r o u t p u t c u r r e n t 2 5 0 m A

D p a c k a g e 7 3

D B p a c k a g e 8 2

J A P a c k a g e t h e r m a l i m p e d a n c e ( 3 ) ( 4 ) N p a c k a g e 6 7 C / W

N S p a c k a g e 6 4

P W p a c k a g e 1 0 8

L e a d t e m p e r a t u r e 1 , 6 m m ( 1 / 1 6 i n c h ) f r o m c a s e f o r 1 0 s e c o n d s 2 6 0 C

Ts t g S t o r a g e t e m p e r a t u r e r a n g e 6 5 1 5 0 C

( 1 ) S t r e s s e s b e y o n d t h o s e l i s t e d u n d e r " a b s o l u t e m a x i m u m r a t i n g s " m a y c a u s e p e r m a n e n t d a m a g e t o t h e d e v i c e . T h e s e a r e s t r e s s r a t i n g s o n l y , a n d f u n c t i o n a l o p e r a t i o n o f t h e d e v i c e a t t h e s e o r a n y o t h e r c o n d i t i o n s b e y o n d t h o s e i n d i c a t e d u n d e r " r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s " i s n o t i m p l i e d . E x p o s u r e t o a b s o l u t e - m a x i m u m - r a t e d c o n d i t i o n s f o r e x t e n d e d p e r i o d s m a y a f f e c t d e v i c e r e l i a b i l i t y .

( 2 ) A l l v o l t a g e s a r e w i t h r e s p e c t t o t h e n e t w o r k g r o u n d t e r m i n a l . ( 3 ) M a x i m u m p o w e r d i s i p a t i o n i s a f u n c t i o n o f T J( m a x ) , J A, a n d T A. T h e m a x i m u m a l l o w a b l e p o w e r d i s s i p a t i o n a t a n y a l l o w a b l e a m b i e n t

t e m p e r a t i r e i s P D = ( TJ( m a x ) T A) /J A. O p e r a t i n g a t t h e a b s o l u t e m a x i m u m T J o f 1 5 0 C c a n a f f e c t r e l i a b i l i t y . ( 4 ) T h e p a c k a g e t h e r m a l i m p e d a n c e i s c a l c u l a t e d i n a c c o r d a n c e w i t h J E S D 5 1 - 7 .

M I N M A X U N I T

VC C S u p p l y v o l t a g e 7 4 0 V

VI A m p l i f i e r i n p u t v o l t a g e 0 . 3 V C C 2 V

VO C o l l e c t o r o u t p u t v o l t a g e 4 0 V

C o l l e c t o r o u t p u t c u r r e n t ( e a c h t r a n s i s t o r ) 2 0 0 m A

C u r r e n t i n t o f e e d b a c k t e r m i n a l 0 . 3 m A

fO S C O s c i l l a t o r f r e q u e n c y 1 3 0 0 k H z

CT T i m i n g c a p a c i t o r 0 . 4 7 1 0 0 0 0 n F RT T i m i n g r e s i s t o r 1 . 8 5 0 0 k

T L 4 9 4 C 0 7 0 TA O p e r a t i n g f r e e - a i r t e m p e r a t u r e C

T L 4 9 4 I 4 0 8 5

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s +

N

n+1

(xn* X)2

N* 1

E l e c t r i c a l C h a r a c t e r i s t i c s

R e f e r e n c e S e c t i o n

O s c i l l a t o r S e c t i o n

E r r o r - A m p l i f i e r S e c t i o n

T L 4 9 4


o v e r r e c o m m e n d e d o p e r a t i n g f r e e - a i r t e m p e r a t u r e r a n g e , V C C = 1 5 V , f = 1 0 k H z ( u n l e s s o t h e r w i s e n o t e d )

T L 4 9 4 C , T L 4 9 4 I P A R A M E T E R T E S T C O N D I T I O N S ( 1 ) U N I T

M I N T Y P ( 2 )

M A XO u t p u t v o l t a g e ( R E F ) I O = 1 m A 4 . 7 5 5 5 . 2 5 V

I n p u t r e g u l a t i o n V C C = 7 V t o 4 0 V 2 2 5 m V

O u t p u t r e g u l a t i o n I O = 1 m A t o 1 0 m A 1 1 5 m V

O u t p u t v o l t a g e c h a n g e w i t h t e m p e r a t u r e TA = M I N t o M A X 2 1 0 m V / V

S h o r t - c i r c u i t o u t p u t c u r r e n t ( 3 ) R E F = 0 V 2 5 m A

( 1 ) F o r c o n d i t i o n s s h o w n a s M I N o r M A X , u s e t h e a p p r o p r i a t e v a l u e s p e c i f i e d u n d e r r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s . ( 2 ) A l l t y p i c a l v a l u e s , e x c e p t f o r p a r a m e t e r c h a n g e s w i t h t e m p e r a t u r e , a r e a t T A = 2 5 C .( 3 ) D u r a t i o n o f s h o r t c i r c u i t s h o u l d n o t e x c e e d o n e s e c o n d .

CT = 0 . 0 1 F , RT = 1 2 k ( s e e F i g u r e 1 )

T L 4 9 4 C , T L 4 9 4 I P A R A M E T E R T E S T C O N D I T I O N S ( 1 ) U N I T M I N T Y P ( 2 ) M A X

F r e q u e n c y 1 0 k H z

S t a n d a r d d e v i a t i o n o f f r e q u e n c y ( 3 ) A l l v a l u e s o f V C C, CT, RT, a n d T A c o n s t a n t 1 0 0 H z / k H z

F r e q u e n c y c h a n g e w i t h v o l t a g e V C C = 7 V t o 4 0 V , T A = 2 5 C 1 H z / k H z

F r e q u e n c y c h a n g e w i t h t e m p e r a t u r e ( 4 ) TA = M I N t o M A X 1 0 H z / k H z

( 1 ) F o r c o n d i t i o n s s h o w n a s M I N o r M A X , u s e t h e a p p r o p r i a t e v a l u e s p e c i f i e d u n d e r r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s . ( 2 ) A l l t y p i c a l v a l u e s , e x c e p t f o r p a r a m e t e r c h a n g e s w i t h t e m p e r a t u r e , a r e a t T A = 2 5 C .( 3 ) S t a n d a r d d e v i a t i o n i s a m e a s u r e o f t h e s t a t i s t i c a l d i s t r i b u t i o n a b o u t t h e m e a n a s d e r i v e d f r o m t h e f o r m u l a :

( 4 ) T e m p e r a t u r e c o e f f i c i e n t o f t i m i n g c a p a c i t o r a n d t i m i n g r e s i s t o r a r e n o t t a k e n i n t o a c c o u n t .

S e e F i g u r e 2

T L 4 9 4 C , T L 4 9 4 I P A R A M E T E R T E S T C O N D I T I O N S U N I T

M I N T Y P ( 1 ) M A X

I n p u t o f f s e t v o l t a g e V O ( F E E D B A C K ) = 2 . 5 V 2 1 0 m V

I n p u t o f f s e t c u r r e n t V O ( F E E D B A C K ) = 2 . 5 V 2 5 2 5 0 n A

I n p u t b i a s c u r r e n t V O ( F E E D B A C K ) = 2 . 5 V 0 . 2 1 A

0 . 3 t oC o m m o n - m o d e i n p u t v o l t a g e r a n g e V C C = 7 V t o 4 0 V V VC C 2

O p e n - l o o p v o l t a g e a m p l i f i c a t i o n VO = 3 V , V O = 0 . 5 V t o 3 . 5 V , R L = 2 k 7 0 9 5 d B

U n i t y - g a i n b a n d w i d t h V O = 0 . 5 V t o 3 . 5 V , R L = 2 k 8 0 0 k H z C o m m o n - m o d e r e j e c t i o n r a t i o VO = 4 0 V , T A = 2 5 C 6 5 8 0 d B

O u t p u t s i n k c u r r e n t ( F E E D B A C K ) V I D = 1 5 m V t o 5 V , V ( F E E D B A C K ) = 0 . 7 V 0 . 3 0 . 7 m A

O u t p u t s o u r c e c u r r e n t ( F E E D B A C K ) V I D = 1 5 m V t o 5 V , V ( F E E D B A C K ) = 3 . 5 V 2 m A

( 1 ) A l l t y p i c a l v a l u e s , e x c e p t f o r p a r a m e t e r c h a n g e s w i t h t e m p e r a t u r e , a r e a t T A = 2 5 C .

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E l e c t r i c a l C h a r a c t e r i s t i c s

O u t p u t S e c t i o n

D e a d - T i m e C o n t r o l S e c t i o n

P W M C o m p a r a t o r S e c t i o n

T o t a l D e v i c e

S w i t c h i n g C h a r a c t e r i s t i c s

T L 4 9 4


o v e r r e c o m m e n d e d o p e r a t i n g f r e e - a i r t e m p e r a t u r e r a n g e , V C C = 1 5 V , f = 1 0 k H z ( u n l e s s o t h e r w i s e n o t e d )

P A R A M E T E R T E S T C O N D I T I O N S M I N T Y P ( 1 )

M A X U N I T C o l l e c t o r o f f - s t a t e c u r r e n t V C E = 4 0 V , V C C = 4 0 V 2 1 0 0 A

E m i t t e r o f f - s t a t e c u r r e n t V C C = VC = 4 0 V , V E = 0 1 0 0 A

C o m m o n e m i t t e r V E = 0 , I C = 2 0 0 m A 1 . 1 1 . 3 C o l l e c t o r - e m i t t e r s a t u r a t i o n v o l t a g e V

E m i t t e r f o l l o w e r V O ( C 1 o r C 2 ) = 1 5 V , I E = 2 0 0 m A 1 . 5 2 . 5

O u t p u t c o n t r o l i n p u t c u r r e n t V I = Vr e f 3 . 5 m A

( 1 ) A l l t y p i c a l v a l u e s , e x c e p t f o r t e m p e r a t u r e c o e f f i c i e n t , a r e a t T A = 2 5 C .

S e e F i g u r e 1

P A R A M E T E R T E S T C O N D I T I O N S M I N T Y P ( 1 ) M A X U N I T

I n p u t b i a s c u r r e n t ( D E A D - T I M E C T R L ) V I = 0 t o 5 . 2 5 V 2 1 0 A

VI ( D E A D - T I M E C T R L ) = 0 , C T = 0 . 0 1 F ,M a x i m u m d u t y c y c l e , e a c h o u t p u t 4 5 % RT = 1 2 k

Z e r o d u t y c y c l e 3 3 . 3 I n p u t t h r e s h o l d v o l t a g e ( D E A D - T I M E C T R L ) V

M a x i m u m d u t y c y c l e 0


S e e F i g u r e 1


I n p u t t h r e s h o l d v o l t a g e ( F E E D B A C K ) Z e r o d u t y c y l e 4 4 . 5 V

I n p u t s i n k c u r r e n t ( F E E D B A C K ) V ( F E E D B A C K ) = 0 . 7 V 0 . 3 0 . 7 m A



VC C = 1 5 V 6 1 0 RT = Vr e f,S t a n d b y s u p p l y c u r r e n t m A A l l o t h e r i n p u t s a n d o u t p u t s o p e n VC C = 4 0 V 9 1 5

A v e r a g e s u p p l y c u r r e n t V I ( D E A D - T I M E C T R L ) = 2 V , S e e F i g u r e 1 7 . 5 m A


TA = 2 5 C


R i s e t i m e 1 0 0 2 0 0 n s C o m m o n - e m i t t e r c o n f i g u r a t i o n , S e e F i g u r e 3

F a l l t i m e 2 5 1 0 0 n s

R i s e t i m e 1 0 0 2 0 0 n s E m i t t e r - f o l l o w e r c o n f i g u r a t i o n , S e e F i g u r e 4

F a l l t i m e 4 0 1 0 0 n s


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P A R A M E T E R M E A S U R E M E N T I N F O R M A T I O N

Test

Inputs

DTC

FEEDBACK

RT

CT

GND50 k

12 k

0.01 F

VCC

REFOUTPUT

CTRL

E2

C2

E1

C1 Output 1

Output 2

150

2 W

150

2 W

VCC = 15 V

TEST CIRCUIT

1IN+

VCC

VCC

0 V

0 V

Voltage

at C1

Voltageat C2

Voltage

at CT

DTC

FEEDBACK

0 V

0.7 V

0%MAX 0%

Threshold Voltage

Threshold Voltage

VOLTAGE WAVEFORMS

Duty Cycle

Error

Amplifiers

7

14

12

8

9

11

10

4

3

6

5

1

2

16

15

13

1IN

2IN

2IN+

T L 4 9 4


F i g u r e 1 . O p e r a t i o n a l T e s t C i r c u i t a n d W a v e f o r m s

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P A R A M E T E R M E A S U R E M E N T I N F O R M A T I O N

+

+

VI

Vref

FEEDBACK

Amplifier Under Test

Other Amplifier

Output

Each Output

Circuit

68

2 W

15 V

CL = 15 pF

(See Note A)

90%

10%

90%

10%

tf tr

TEST CIRCUIT OUTPUT VOLTAGE WAVEFORM

NOTE A: CL includes probe and jig capacitance.

Output

Each Output

Circuit

68

2 W

15 V

CL = 15 pF

(See Note A)

90%

10%

90%

10%

tftr

TEST CIRCUIT OUTPUT VOLTAGE WAVEFORM

NOTE A: CL includes probe and jig capacitance.

T L 4 9 4


F i g u r e 2 . A m p l i f i e r C h a r a c t e r i s t i c s

F i g u r e 3 . C o m m o n - E m i t t e r C o n f i g u r a t i o n

F i g u r e 4 . E m i t t e r - F o l l o w e r C o n f i g u r a t i o n

7


8/20

www.ti.com

T Y P I C A L C H A R A C T E R I S T I C S

Df = 1%

40

10

100

1 k 4 k 10 k 40 k 100 k 400 k 1 MfOscilla

torFrequencyandFrequencyVariation

Hz

OSCILLATOR FREQUENCY AND

FREQUENCY VARIATION

vsTIMING RESISTANCE

400

1 k

4 k

10 k

40 k

100 k

RT Timing Resistance

0.1 F

2%

1%

0% 0.01F

0.001 F

VCC = 15 VTA = 25C

CT = 1 F

Frequency variation (f) is the change in oscillator frequency that occurs over the full temperature range.

10

0

100

20

1 10 100 1 M

A

AmplifierVoltageAmplificationdB

30

f Frequency Hz

AMPLIFIER VOLTAGE AMPLIFICATION

vs

FREQUENCY

1 k

VCC = 15 V

VO = 3 V

TA = 25C

10 k

40

50

60

70

80

90

100 k

T L 4 9 4


F i g u r e 5 .

F i g u r e 6 .

8


9/20

PACKAGE OPTION ADDENDUM

www.ti.com 11-Apr-2013

Addendum-Page 1

PACKAGING INFORMATION

Orderable Device Status

(1)

Package Type PackageDrawing

Pins PackageQty

Eco Plan

(2)

Lead/Ball Finish MSL Peak Temp

(3)

Op Temp (C) Top-Side Markings

(4)

Sampl

TL494CD ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM 0 to 70 TL494C

TL494CDE4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)


TL494CDG4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)


TL494CDR ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)


TL494CDRE4 ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)


TL494CDRG3 PREVIEW SOIC D 16 TBD Call TI Call TI 0 to 70 TL494C

TL494CDRG4 ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)


TL494CJ OBSOLETE CDIP J 16 TBD Call TI Call TI

TL494CN ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type 0 to 70 TL494CN

TL494CNE4 ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type 0 to 70 TL494CN

TL494CNSR ACTIVE SO NS 16 2000 Green (RoHS

& no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM 0 to 70 TL494

TL494CNSRG4 ACTIVE SO NS 16 2000 Green (RoHS

& no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM 0 to 70 TL494

TL494CPW ACTIVE TSSOP PW 16 90 Green (RoHS

& no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM 0 to 70 T494

TL494CPWE4 ACTIVE TSSOP PW 16 90 Green (RoHS

& no Sb/Br)


TL494CPWG4 ACTIVE TSSOP PW 16 90 Green (RoHS

& no Sb/Br)


TL494CPWLE OBSOLETE TSSOP PW 16 TBD Call TI Call TI

TL494CPWR ACTIVE TSSOP PW 16 2000 Green (RoHS

& no Sb/Br)


TL494CPWRE4 ACTIVE TSSOP PW 16 2000 Green (RoHS

& no Sb/Br)

http://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuy


10/20



Addendum-Page 2

Orderable Device Status

(1)

Package Type PackageDrawing

Pins PackageQty

Eco Plan

(2)

Lead/Ball Finish MSL Peak Temp

(3)

Op Temp (C) Top-Side Markings

(4)

Sampl

TL494CPWRG4 ACTIVE TSSOP PW 16 2000 Green (RoHS

& no Sb/Br)


TL494ID ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM -40 to 85 TL494I

TL494IDE4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)


TL494IDG4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)


TL494IDR ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)


TL494IDRE4 ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)


TL494IDRG4 ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)


TL494IN ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type -40 to 85 TL494IN

TL494INE4 ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type -40 to 85 TL494IN

TL494MJ OBSOLETE CDIP J 16 TBD Call TI Call TI -55 to 125

TL494MJB OBSOLETE CDIP J 16 TBD Call TI Call TI -55 to 125(1)

The marketing status values are defined as follows:ACTIVE: Product device recommended for new designs.LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available.OBSOLETE: TI has discontinued the production of the device.

(2)

Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontentfor the latest availabilityinformation and additional product content details.TBD: The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement thatlead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used betweenthe die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weightin homogeneous material)
http://www.ti.com/productcontenthttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuyhttp://www.ti.com/product/TL494?CMP=conv-poasamples#samplebuy


11/20



Addendum-Page 3

(3)MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.

(4)

Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is acontinuation of the previous line and the two combined represent the entire Top-Side Marking for that device.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on informationprovided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken andcontinues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.


12/20

TAPE AND REEL INFORMATION

*All dimensions are nominal

Device PackageType

PackageDrawing

Pins SPQ ReelDiameter

(mm)

ReelWidth

W1 (mm)

A0(mm)

B0(mm)

K0(mm)

P1(mm)

W(mm)

Pin1Quadrant

TL494CDR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

TL494CDR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

TL494CDRG4 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

TL494CPWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1

TL494IDR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

TL494IDRG4 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

PACKAGE MATERIALS INFORMATION


Pack Materials-Page 1


13/20

*All dimensions are nominal

Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)

TL494CDR SOIC D 16 2500 333.2 345.9 28.6

TL494CDR SOIC D 16 2500 367.0 367.0 38.0

TL494CDRG4 SOIC D 16 2500 333.2 345.9 28.6

TL494CPWR TSSOP PW 16 2000 367.0 367.0 35.0

TL494IDR SOIC D 16 2500 333.2 345.9 28.6

TL494IDRG4 SOIC D 16 2500 333.2 345.9 28.6

PACKAGE MATERIALS INFORMATION


Pack Materials-Page 2


14/20


15/20


16/20


17/20


18/20


19/20


20/20

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and otherchanges to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latestissue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current andcomplete. All semiconductor products (also referred to herein as components) are sold subject to TIs terms and conditions of salesupplied at the time of order acknowledgment.

TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TIs terms

and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessaryto support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarilyperformed.

TI assumes no liability for applications assistance or the design of Buyers products. Buyers are responsible for their products andapplications using TI components. To minimize the risks associated with Buyers products and applications, Buyers should provideadequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, orother intellectual property right relating to any combination, machine, or process in which TI components or services are used. Informationpublished by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty orendorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of thethird party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alterationand is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altereddocumentation. Information of third parties may be subject to additional restrictions.

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In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TIs goal is tohelp enable customers to design and create their own end-product solutions that meet applicable functional safety standards andrequirements. Nonetheless, such components are subject to these terms.

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TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use ofnon-designated products, TI will not be responsible for any failure to meet ISO/TS16949.

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Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265Copyright 2013, Texas Instruments Incorporated
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