TPS22951 - 3.6V，0.6A，565mΩ，600mA 限流负载开关

TPS22951是TI德州仪器公司的一款电压与电流限制保护产品，TPS22951是3.6V，0.6A，565mΩ，600mA 限流负载开关，本站介绍了TPS22951的封装应用图解、特点和优点、功能等，并给出了与TPS22951相关的TI元器件型号供参考。

TPS22951 - 3.6V，0.6A，565mΩ，600mA 限流负载开关 - 电压与电流限制保护 - 集成负载开关 - 德州仪器

产品特性

1-Ω P-Channel MOSFET
300-mA Continuous Source Current
Thermal and Short-Circuit Protection
600-mA Current Limit
Operating Range: VCC = 2.8 V to 5.3 V
41-μs Typical Rise Time
10-μA Maximum Standby Supply Current
Ambient Temperature Range: –40°C to 85°C
ESD Performance Tested Per JESD 22
- 4000-V Human-Body Model (HBM)
- 400-V Machine Model (MM)
- 1000-V Charged-Device Model (CDM)

产品应用

Smart Phones
Notebooks
Digital Cameras
Peripheral Ports

产品说明

The TPS22951 smart-load switch is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates a 1-Ω P-channel MOSFET power switch for power distribution. The switch is controlled by a logic enable (EN) input and an accessory detect (DET) pin. The switch is active when EN is high and DET is low. The switch is disabled if EN is low or DET is high. A low power state is achieved by driving EN low.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by increasing the on resistance of the power switch. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal-protection circuit shuts off the switch to prevent damage. The device recovers from a thermal shutdown once the device has cooled sufficiently, but the switch remains OFF until EN is toggled. This smart-load switch is designed to set current limit at 600-mA maximum.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS22951	DSBGA (6)	1.20 mm x 0.80 mm

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