Complete system protection and management solutions from Texas Instruments deliver high system reliability. Analog and digital hot swap controllers provide both current and power limiting to dynamically adjust the current limit at large V DS to ensure the MOSFET stays in the Safe Operating Area (SOA) — maximizing long-term system reliability and robustness. The new family of intelligent hot swap devices feature system diagnostic and telemetry reporting which enables the system to take immediate action to control or optimize power delivery. The family of ORing FET controllers allows MOSFETs to replace diode rectifiers in power distribution networks and reduce both power loss and voltage drops while providing best-in-class reverse current protection. System Protection and Management Portfolio Communications Infrastructure, Merchant Power, Industrial, Automotive Applications 80V 60V 20V 10V 5V 3V -10V -80V -100V V IN Hot Swap Control Multi-Output Hot Swap + OR-ing OR-ing FET Control Measurement Protection and Control LM5069 TPS249x LM5067/8 TPS235x TPS245x LM5050 TPS241x LM5066 PMBus TPS248x TPS249x LM25066 PMBus LM5064 PMBus TPS239x LM5051 LM25061/9 TPS233x TPS242x TPS247xx TPS25xx UC391x LM25056 PMBus Power Measurement 220 VAC 220 VAC DC Rectifier A B SMBus Hot Swap ORing DC Rectifier IBC POL LDO PMBus POL PMBus Hot Swap Loads: 1V, 90A 1.8V, 60A 1.2V, 20A 1.5V, 15A 2.5V, 15A 5V, 10A 0.9V, 3A 2.8V, 0.5A Line Card Peripheral Card -48V IN-B IN-A RTN-B RTN-A Reverse Current Protection ORing POL PMBus POL Typical System Application Front-End System Protection & Power Management Solutions Increased System Reliability and Efficiency 1Q 2012 www.ti.com
Transcript
Complete system protection and management solutions from Texas Instruments deliver high system reliability. Analog and digital hot swap controllers provide both current and power limiting to dynamically adjust the current limit at large VDS to ensure the MOSFET stays in the Safe Operating Area (SOA) — maximizing long-term system reliability and robustness. The new family of intelligent hot swap devices feature system diagnostic and telemetry reporting which enables the system to take immediate action to control or optimize power delivery. The family of ORing FET controllers allows MOSFETs to replace diode rectifiers in power distribution networks and reduce both power loss and voltage drops while providing best-in-class reverse current protection.
Front-End System Protection & Power Management SolutionsIncreased System Reliability and Efficiency
1Q 2012www.ti.com
Hot Swap Protection and Measurement
Hot swap controllers are the power gate keepers that control the flow of power into the board, monitor for fault conditions, and protect against undesirable events. TI’s hot swap controller and high-side protection solutions provide robust front end protection for a range of communication infrastructure, merchant power, industrial, and automotive applications.
Typical Application CircuitTI’s PMBus-enabled system protection and management products combine hot swap control with embedded telemetry measurement, intelligence, and digital communications which enable them to deliver accurate power usage data back to the system to optimize power consumption, reduce operating expenses, and increase reliability.
Features• Hot swap/In-rush control• Adjustable input current and input power limiting enable use of
smallest MOSFETs• Circuit breaker for over-current events• Programmable under-voltage and over-voltage thresholds• Fast response to fault current conditions
Power Limiting ProtectionTo ensure system reliability, MOSFET drivers must operate within the SOA in order to avoid FET failure. Most hot swap controllers control only the current, but when the FET is turning on, the voltage across it can still be large and the power through the FET can cause it to exceed its SOA curve unless the design accounts to over-size the FET, which adds both cost and size. TI’s hot swap controllers provide both current and power limiting to dynamically adjust the current limit at large VDS and ensure the MOSFET stays in the SOA at all conditions. This technique enables the use of smaller and lower cost MOSFETs.
LM25066
VSYS V OUT
PowerGood
GND
UVLO
SCL
PWRGNDTIMER
PGD
OUTVIN SENSE GATE
SMBusInterface SDA
SMBA
ADR0ADR1ADR2
AUX
D+
VDD
OVLO
V AUX
FB V PG
RETRY
CLCB
VREF
Features• Hot swap with current and power limiting• Adjustable current limit, circuit breaker thresholds• Measure voltage, current, power, and temperature •Simultaneoussamplingofcurrentandvoltagefortruepower
measurement• Peak and programmable average power capture• Dynamic configuration of fault and warning levels • I2C/SMBus interface with PMBus compliance
1 10 100 1000
VDS , Drain-to-Source Voltage [V]
0.1
1
10
100
1000I D
, Dra
in-t
o-So
urce
Cur
rent
[A]
100 µsec
1 msec
10 msecMOSFET Safe Operating Area (SOA)
Current Limit OnlyCurrent Limit
Power Limit
TI’s Current and Power Limiting Protection
VIN VOUT
PowerGOOD
UVLO
OVLO
PWR GNDTIMER
PGD
OUTVIN SENSE GATE
LM5069
Typical Application Circuit
System Protection and Power Management Texas Instruments 1Q 2012
Hot Swap Protection and Measurement Hot Swap Protection and Measurement
Hot Swap/In-Rush Current Controllers
System Protection and Power Management Texas Instruments 1Q 2012
Device VINRange(V)Enable/
Shutdown UV OV Fault PG LatchAuto Retry Ramp
Power Limiting Package(s)
TPS2400 2to100 1H ✔ ✔ ✔ — No 5-pinSOT-23
TPS24700/01 2.5to18 1H ✔ ✔ ✔ Current No 8-pinMSOP
TPS24710 2.5to18 1H ✔ L L ✔ Current Yes 10-pinMSOP
TPS24711 2.5to18 1H ✔ L L ✔ Current Yes 10-pinMSOP
TPS24712/13 2.5to18 1H ✔ H H ✔ Current Yes 10-pinMSOP
LM5068 -10to-90 1H ✔ ✔ ✔ H/H/L/L -1/-3 -2/-4 Current No 8-pinMSOP
TPS2350 –12to–80 1H ✔ ✔ ✔ ✔ ✔ Current No 14-pinSOIC/TSSOP
TPS2394 –12to–80 1H ✔ ✔ ✔ ✔ ✔ Current No 14-pinTSSOP
TPS2395 –12to–80 1H ✔ ✔ ✔ ✔ ✔ Current No 20-pinTSSOP
TPS2392 –20to–80 1H ✔ ✔ ✔ ✔ ✔ Current No 14-pinTSSOP
TPS2393/A –20to–80 1H ✔ ✔ ✔ ✔ ✔ Current No 14/44-pinTSSOP
TPS2390 –36to–80 1H ✔ ✔ Current No 8-pinMSOP
TPS2391 –36to–80 1H ✔ ✔ Current No 8-pinMSOP
TPS2398 –36to–80 1H ✔ ✔ Current No 8-pinMSOP
TPS2399 –36to–80 1H ✔ ✔ Current No 8-pinMSOP
Design Tools
USB
to PMBus
Eval Board Software
Design & Evaluation Tools
TI offers a full suite of design resources and evaluation tools, such as application notes, reference designs, demo videos, a hot swap component calculator, WEBENCH® Power Architect, PowerLab, and other design tools.
Component Calculator Design and Evaluation GUI tool
Evaluate solutions for your system with an easy-to-use design calculator and PMBus configuration
The platform bar, E2E, and PowerLab are trademarks of Texas Instruments. WEBENCH is a registered trademarkAll other trademarks are the property of their respective owners.
SLPB011A
ORing MOSFET Controllers
High-side ORing MOSFET controllers improve redundant power supply reliability by delivering ideal diode response to reverse current. Using LM5050 to control MOSFETs as a replacement for a Schottky ORing diode also improves the efficiency of the redundant power supplies. An ultra-fast 50 ns shut off significantly limits the flow of reverse current.
Hot Swap Protection and Measurement
Device VIN Range (V) Enable/
Shutdown UV OV Fault PG ORing Linear Gate Drive?
On/Off ORing Function? Package(s)
TPS2410 0.8 to 16.5 1H ✔ ✔ ✔ ✔ ✔ 14-pin TSSOP
TPS2411 0.8 to 16.5 1H ✔
TPS2412 0.8 to 16.5 ✔ 8-pin SOIC, 8-pin TSSOP
TPS2413 0.8 to 16.5 ✔ 8-pin SOIC, 8-pin TSSOP
TPS2419 3 to 16.5 1H ✔ ✔ 8-pin SOIC
LM5050-1 5 to 80 L ✔ ✔ 6-pin TSOT
LM5051 –6 to –100 L ✔ ✔ ✔ 8-pin SOIC
LM5050-2 6 to 80 L ✔ ✔ ✔ 6-pin TSOT
TPS2456 8.5 to 15 2H ✔ ✔ ✔ ✔ 36-pin QFN
TPS2358 8.5 to 15 2L 48-pin QFN
TPS2359 8.5 to 15 Via I2C 36-pin QFN
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