BL2556

产品特点
技术文档

Features	VIN	IQ	Current Limit Threshold	Power Switch On Resistance	Package	Application
5V USB High Side Current Limited Load Switch	2.7~5.5V	50μA	2A	70mQ	SOT23-5	USB Periphery

70mΩ, 5V USB High Side Current Limited Load Switch

BL2556 is a USB output protection chip with adjustable current limit threshold for 5V applications. The device integrates over current protection, short protection, over temperature protection, under voltage lock-out protection functions, etc. It can limit output current when short event happens or heavy capacitive load is applied to the USB output, so as to protect the supply voltage source from collapsing.

优势特点

Low on resistance: 70mΩ
Current-limit threshold adjustable by external resistor
Current limit accuracy over full operating conditions：±15%
Output short fast response and protection
No parasitic substrate diode, and reverse current blocking when switch is off

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