TPS2552-1 - 可调节限流配电开关

TPS2552-1是TI德州仪器公司的一款精密可调节限流开关产品，TPS2552-1是可调节限流配电开关，本站介绍了TPS2552-1的封装应用图解、特点和优点、功能等，并给出了与TPS2552-1相关的TI元器件型号供参考。

TPS2552-1 - 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 - 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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