TPS24741 Texas instruments

TPS24741

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TPS24741

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Описание

The TPS2474x is an integrated ORing and Hot Swap controller for 2.5 V to 18 V systems. It's precise and programmable protection settings aid in the design of high power, high availability systems where isolating faults is critical. Programmable current limit, fast shut down, and fault timer protect the load and supply during fault conditions such as a hot - short. The fast shutdown threshold and response time can be tuned to ensure a fast response to real faults, while avoiding nuisance trips. Programmable SOA (Safe Operating Area) protection and the inrush timer keep the MOSFET safe under all operating conditions. After asserting a power good, TPS2474x runs the fault timer during over-current events, but doesnt current limit. It shuts down after the fault timer expires. Two independent timers (inrush/fault) allow the user to customize protection based on system requirements. The ORing function of the TPS2474x allows the user to program the reverse voltage threshold and response time to aid in the design of redundant power supply systems.

2.5V to 18V Bus Operation (30V abs max)
Programmable Protection Settings:
- Current Limit: ±5% at 10mV
- Fast Trip: ±10% at 20mV
- Reverse Voltage: ±1mV at –1 mV
Programable Response Time for Fast Trip and
Reverse Voltage
Programmable FET SOA Protection
Dual Timer (Inrush/Fault)
Interchangeable Hot Swap and ORing
Analog Current Monitor (1% at 25mV)
Status Flags for Faults and Power Good
UV and OV Protection
Independent EN for Hot Swap and ORing
4mm × 4mm 24-pin QFN
40 = Latch, 41 = Retry, 42 = Fast Latch Off

FET	External
Vin (min) (V)	2.5
Vin (max) (V)	18
Vabsmax_cont (V)	30
Current limit (min) (A)	0.01
Current limit (max) (A)	500
Overcurrent response	Circuit breaker, Current limiting
Fault response	Auto-retry
Soft start	Adjustable
Overvoltage response	Cut-off
Features	Current monitoring, Fault output, Power good signal, Reverse current blocking always
Rating	Catalog
Device type	eFuses and hot swap controllers
Operating temperature range (°C)	-40 to 125