双通道精密可调节限流电源开关 - TPS2561

TPS2561 (正在供货)

双通道精密可调节限流电源开关

 

描述

The TPS2560 and TPS2561 are dual-channel power-distribution switches intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 250 mA and 2.8 A (typ) per channel through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on and off.

Each channel of the TPS256x devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULTx logic output for each channel independently asserts low during overcurrent and overtemperature conditions.

特性

  • Two Separate Current Limiting Channels
  • Meets USB Current-Limiting Requirements
  • Adjustable Current Limit, 250 mA to 2.8 A (typ)
  • ± 7.5% Current-Limit Accuracy at 2.8 A
  • Fast Overcurrent Response - 3.5-µs (typ)
  • Two 44-mΩ High-Side MOSFETs
  • Operating Range: 2.5 V to 6.5 V
  • 2-µA Maximum Standby Supply Current
  • Built-in Soft-Start
  • 15-kV / 8-kV System-Level ESD Capable
  • UL Listed – File No. E169910
  • CB and Nemko Certified

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参数 与其它产品相比 精密可调节限流开关

 
Vin (Min) (V)
Vin (Max) (V)
Number of Switches
rDS(on) per FET (Typ) (mOhms)
Continuous Current (Max) (A)
Current Limit (A)
Current Limit Accuracy @ 1A
Enable
Current Limit Topology
Rating
Operating Temperature Range (C)
Pin/Package
TPS2561 TPS2560 TPS2560A TPS2561A
2.5    2.5    2.5    2.5   
6.5    6.5    6.5    6.5   
2    2    2    2   
45    45    45    45   
2.5    2.5    2.5    2.5   
0.25 to 2.5    0.25 to 2.5    0.25 to 2.5    0.25 to 2.5   
+/-7.5% (2590mA min / 3005mA max)    +/-7.5% (2590mA min / 3005mA max)    2.1A Min / 2.5A Max Setting (Including Resistor)    2.1A Min / 2.5A Max Setting (Including Resistor)   
Active High    Active Low    Active Low    Active High   
Constant-Current    Constant-Current    Constant-Current    Constant-Current   
Catalog    Catalog    Catalog    Catalog   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
10VSON    10VSON    10VSON    10VSON   

其它合格版本 TPS2561

版本 器件型号 定义
汽车电子 TPS2561-Q1 Q100 适用于追求零缺陷的高可靠性汽车电子应用的器件