TPS23523 Texas instruments

TPS23523

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TPS23523

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Описание

The TPS23523 is an integrated hot swap and 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 dual hot swap gate driver saves space and BOM cost in high power applications that require multiple hot swap FETs.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 TPS23523 integrates an OR-ing controller, making it ideal for –48-V systems that require reverse hook-up protection and reverse-current protection. The OR-ing controller protects the output when the input drops avoiding system resets.

–10-V to –80-V DC Operation, –200-V Absolute Maximum
Soft Start Cap Disconnect
Dual Hot Swap Gate Drive
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 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