TPS2553D Texas instruments

TPS2553D

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TPS2553D

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Описание

The TPS2552D and TPS2553D power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current. These devices offer a programmable current-limit threshold between 75 mA and 1.7 A (typ) via an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turn on/off. The TPS2552D/3D devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. An internal reverse-voltage comparator disables the power-switch when the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT output asserts low during overcurrent and reverse-voltage conditions.

Up to 1.5 A Maximum Load Current
±6% Current-Limit Accuracy at 1.7 A (Typ)
Meets USB Current-Limiting Requirements
Backwards Compatible with TPS2550/51
Adjustable Current Limit, 75 mA–1700 mA (Typ)
Constant-Current (TPS2552D and TPS2553D)
TPS2552D (Enable Low) and TPS2553D (Enable High)
Fast Overcurrent Response - 2 µs (Typ)
85-mΩ High-Side MOSFET (DBV Package)
Reverse Input-Output Voltage Protection
Operating Range: 2.7 V to 6.5 V
Built-in Soft-Start
15 kV ESD Protection per IEC 61000-4-2 (With External Capacitance)
UL Listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0
See the TI Switch Portfolio

Product type	Adjustable current limit, Power switch
Vin (min) (V)	2.7
Vin (max) (V)	6.5
Continuous current (max) (A)	1.7
Current limit (A)	0.075 to 1.7
Operating temperature range (°C)	-40 to 125
Enable	Active High
Number of switches	1
Current limit accuracy at 1 A	7.5%(925mA min / 1075mA max)
Rating	Catalog