来自TI公司最新产品：TPS2552DBVR可调节限流配电开关，属于电源开关 IC - 配电 Adj Crnt-Ltd Pwr- Dist Sw
产品图片：如（附件）
TPS2552DBVR特性：
Up to 1.5-A Maximum Load Current
±6% Current-Limit Accuracy at 1.7 A (Typical)
Meets USB Current-Limiting Requirements
Backwards Compatible With TPS2550 and TPS2551
Adjustable Current Limit: 75 mA to 1700 mA (Typical)
Constant-Current (TPS255x) and Latch-Off (TPS255x-1) Versions
Fast Overcurrent Response - 2 µs (Typical)
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 and NEMKO IEC60950-1-am1 ed2.0
See the TI Switch Portfolio
TPS2552DBVR产品规格：
产品种类: 电源开关 IC - 配电
制造商: Texas Instruments
RoHS: 符合RoHS
类型: Low Side
输出端数量: 1 Output
输出电流: 1.5 A
电流限制: 1.2 A
导通电阻—最大值: 85 mOhms
工作电源电压: 2.5 V to 6.5 V
电源电压-最小: 2.5 V
电源电压-最大: 6.5 V
最小工作温度: - 40 C
最大工作温度: + 85 C
安装风格: SMD/SMT
封装 / 箱体: SOT-23-6
系列: TPS2552
封装: Reel
商标: Texas Instruments
产品: USB Current Limited Power Switches
工厂包装数量: 3000
零件号别名: HPA00714DBVR
单位重量: 36 mg
产品描述：
The TPS255x and TPS255x-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 (typical) through 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 turnon and turnoff.
TPS255x devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. TPS255x-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.
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