2016 Crocus Technology Page 1 Document Number CT51x Series Datasheet Rev 1.2 CT51x Series Unipolar Switch for Consumer & Industrial Applicaons Features and Benefits High sensivity Resistant to mechanical stress Low power consumpon High frequency performance Digital push-pull and open drain opons Cost-effecve RoHS Compliant Applicaon Examples Door or lid closure detecon Smart phones, tablets, and laptops Reed switch replacement Motor controllers Proximity detecon Power switch or open-close detecon Water, electric, and gas ulity meters Fluid level detecon Product Descripon The CT51x Series is an integrated magnec sensor especially designed for consumer switching applicaons based on Crocus Technology’s patented Magnec Logic Unit™ (MLU™) technology with integrated CMOS process. The CT51x Series operates with low power consumpon in low magnec fields and large air gaps with industry leading high frequency perfor- mance. The CT51x is available in either push-pull or open drain configu- raon for design flexibility with high sensivity. The CT51x is available in either a SOT-23 or TO-92 package and provides a cost effecve soluon for high volume manufacturing. Custom soluons are available. SOT-23 Package TO-92 Package
Transcript
2016 Crocus Technology Page 1
Document Number CT51x Series Datasheet Rev 1.2
CT51x Series Unipolar Switch for Consumer &
Industrial Applicaons
Features and Benefits
High sensivity
Resistant to mechanical stress
Low power consumpon
High frequency performance
Digital push-pull and open drain opons
Cost-effecve
RoHS Compliant
Applicaon Examples
Door or lid closure detecon
Smart phones, tablets, and laptops
Reed switch replacement
Motor controllers
Proximity detecon
Power switch or open-close detecon
Water, electric, and gas ulity meters
Fluid level detecon
Product Descripon
The CT51x Series is an integrated magnec sensor especially designed for
consumer switching applicaons based on Crocus Technology’s patented
Magnec Logic Unit™ (MLU™) technology with integrated CMOS process.
The CT51x Series operates with low power consumpon in low magnec
fields and large air gaps with industry leading high frequency perfor-
mance. The CT51x is available in either push-pull or open drain configu-
raon for design flexibility with high sensivity. The CT51x is available in
either a SOT-23 or TO-92 package and provides a cost effecve soluon
for high volume manufacturing. Custom soluons are available.
SOT-23 Package
TO-92 Package
2016 Crocus Technology Page 2
Document Number CT51x Series Datasheet Rev 1.2
CT51x Series Unipolar Switch for Consumer &
Industrial Applicaons
Table 1: Absolute Maximum Rangs
Table 2: Electrical Characteriscs for CT51xVA Series
Supply Voltage = 3.0V, Ta = 25C unless otherwise specified.
Parameter Symbol Min Max Unit
Supply Voltage Vs 7 V
Supply Current Idd 15 mA
Operang Temp Ta -40 85 oC
Storage Temp Ts 150 oC
Soldering Temp T 260 oC
ESD Level (HBM) Vesd 4,000 V
Characterisc Symbol Min Typ Max Unit
Operang Temperature -40 25 85 oC
Supply Voltage Vcc 2.7 3.0 3.3 V
Output Voltage High Voh 2.7 V
Output Voltage Low Vol 0.2 V
Acve Mode Current Ion 80 µA
Sleep Mode Current Istb 170 nA
Average Current Iavg 350 nA
Switching Frequency Fsw 10 Hz
Awake Mode Time taw 80 µS
Standby Mode Time Tstb 43 mS
Duty Cycle DC 0.2 %
Operang Magnec Flux B 0 10 mT
Output Voltage High (CT511) VSYSH 0.7Vsys V
I/O pin Source Current1 IOH 20 mA
Output Voltage Low (CT511) VSYSL 0.3Vsys V
I/O pin Sink Current1 IOL -20 mA
Note: 1) Current measured using Rpull-up = 220 Ω, VSYS = 3.6V
2016 Crocus Technology Page 3
Document Number CT51x Series Datasheet Rev 1.2
CT51x Series Unipolar Switch for Consumer &
Industrial Applicaons
Table 3: Electrical Characteriscs for CT51xVB Series
Supply Voltage = 3.0V, Ta = 25C unless otherwise specified.
Characterisc Symbol Min Typ Max Unit
Operang Temperature -40 25 85 oC
Supply Voltage Vcc 2.7 3.0 3.3 V
Output Voltage High Voh 2.7 V
Output Voltage Low Vol 0.2 V
Acve Mode Current Ion 80 µA
Sleep Mode Current Istb 170 nA
Average Current Iavg 2 µA
Switching Frequency Fsw 100 Hz
Awake Mode Time taw 80 µS
Standby Mode Time Tstb 3.5 mS
Duty Cycle DC 2.2 %
Operang Magnec Flux B 0 10 mT
Output Voltage High (CT511) VSYSH 0.7Vsys V
Output Voltage Low (CT511) VSYSL 0.3Vsys V
I/O pin Source Current1
(CT511) IOH 20 mA
I/O pin Sink Current1
(CT511) IOL -20 mA
Note: 1) Current measured using Rpull-up = 220 Ω, VSYS = 3.6V
2016 Crocus Technology Page 4
Document Number CT51x Series Datasheet Rev 1.2
CT51x Series Unipolar Switch for Consumer &
Industrial Applicaons
Table 4: Electrical Characteriscs for CT51xVC Series
Supply Voltage = 3.0V, Ta = 25C unless otherwise specified.
Characterisc Symbol Min Typ Max Unit
Operang Temperature -40 25 85 oC
Supply Voltage Vcc 2.7 3.0 3.3 V
Output Voltage High Voh 2.7 V
Output Voltage Low Vol 0.2 V
Acve Mode Current Ion 80 µA
Sleep Mode Current Istb 170 nA
Average Current Iavg 20 µA
Switching Frequency Fsw 1.5 KHz
Awake Mode Time taw 80 µS
Standby Mode Time Tstb 240 µS
Duty Cycle DC 25 %
Operang Magnec Flux B 0 10 mT
Output Voltage High (CT511) VSYSH 0.7Vsys V
Output Voltage Low (CT511) VSYSL 0.3Vsys V
I/O pin Source Current1
(CT511) IOH 20 mA
I/O pin Sink Current1
(CT511) IOL -20 mA
Note: 1) Current measured using Rpull-up = 220 Ω, VSYS = 3.6V
2016 Crocus Technology Page 5
Document Number CT51x Series Datasheet Rev 1.2
CT51x Series Unipolar Switch for Consumer &
Industrial Applicaons
Table 5: Magnec Characteriscs
Supply Voltage = 3.0V
Table 6: Output Behavior versus Magnec Field
Figure 1: Magnec Flux
B+ BRP
BHYS
Output OFF
VO
UT
BOP
Output ON
Switch
to Lo
w Sw
itch
to
Hig
h
Characterisc Condions Output
South Pole B > BOP Low
Null or weak magnec field B < BRP High
North Pole B > BOP High
Characterisc Symbol Condions Min Typ Max Unit
Operate Point BOP Ta = -40C to 85C 2 3 4 mT
Release point BRP Ta = -40C to 85C 0.8 1.5 2.5 mT
Hysteresis BHYS BOP - BRP, Ta = -40C to 85C 1.5 mT
