TPS23525 Texas instruments

TPS23525

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TPS23525

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Описание

The TPS23525 is an integrated hot swap and dual OR-ing controller that enables high power telecom systems to comply with stringent transient requirements. The 200-V absolute maximum rating makes it easier to survive lightning surge tests (IEC61000-4-5). The soft start cap disconnect allows for the use of smaller hot swap FETs by limiting the inrush current, without hurting the transient response. The 400-µA sourcing current allows fast recovery, which helps to avoid system resets during lightning surge tests. The dual current limit makes it easier to pass brown outs and input steps such as required by the ATIS 0600315.2013. Finally, it offers accurate undervoltage and overvoltage protection with programmable thresholds and hysteresis. The TPS23525 integrates a dual OR-ing controller, making it ideal for –48-V systems fed by two redundant supplies.

–10-V to –80-V DC Operation, –200-V Absolute Maximum
Soft Start Cap Disconnect
400-µA Gate Sourcing Current
Dual Current Limit (based on V_DS)
- 25 mV ±4% When Low V_DS
- 3 mV ±25% When High V_DS
Programmable UV(±1.5%) and OV (±2%)
- Programmable Hysteresis (±11%)
Integrated Dual OR-ing Controller
- Regulation: 25 mV ±15 mV
- Fast Turn off: –6 mV ±4 mV
Retries After Time Out
16-Pin TSSOP

FET	External
Vin (min) (V)	-80
Vin (max) (V)	-10
Vabsmax_cont (V)	-200
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	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
Function	Adjustable current limit, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection