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TPS2553 - 产品图解:
TPS2553-可调节限流配电开关
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TI产品 - TPS2553介绍
TPS2553 - 可调节限流配电开关

TPS2553是TI公司的一款精密可调节限流开关产品,TPS2553是可调节限流配电开关,本页介绍了TPS2553的产品说明、应用、特性等,并给出了与TPS2553相关的TI元器件型号供参考。

TPS2553 - 可调节限流配电开关 - 精密可调节限流开关 - USB电源和充电端口控制器 - TI公司(Texas Instruments,德州仪器)

产品描述

The TPS2552/53 and TPS2552-1/53-1 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.

TPS2552/53 devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. TPS2552-1/53-1 devices provide circuit breaker functionality by latching off the power switch during overcurrent or reverse-voltage situations. 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.

产品特性

  • 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–1300 mA (typ)
  • Constant-Current (TPS2552/53) and Latch-off (TPS2552-1/53-1) Versions
  • Fast Overcurrent Response - 2-µs (typ)
  • 85-mΩ High-Side MOSFET (DBV Package)
  • Reverse Input-Output Voltage Protection
  • Operating Range: 2.5 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 band NEMKO IEC60950-1-am1 ed2.0
  • See the TI Switch Portfolio

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