Datasheet > US201XXG-AF5-R

US201XXG-AF5-R

更新时间： 2022-09-15 10:06:11

品牌	Logo	应用领域
友顺 - UTC		开关电源开关
页数	文件大小	规格书
7页	263K
描述
HIGH-SIDE POWER SWITCHES WITH FLAG

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US201XXG-AF5-R 数据手册

UNISONIC TECHNOLOGIES CO., LTD

US201/A/B/C

CMOS IC

HIGH-SIDE POWER SWITCHES

WITH FLAG

DESCRIPTION

The UTC US201/A/B/C series are 80mΩ high-side power

switches. There’s internal single low voltage N-Channel MOSFET

which makes it an ideal for all USB applications. This MOSFET

should be driven by a charge pump circuitry inside. Its switch on

resistance is as low as 80mꢀ which we know specially meets the

drop voltage for USB applications.

The flag pin can output an open-drain fault flag to next controller.

There’re lots internal special ways for protecting the chip’s

operation.

When in hot-plug events, there’s large current which can create

the upstream voltage droop to match the USB’s voltage droop

requirements and soft-start for isolating the power source.

As soon as the die temperature is higher than 130℃, the internal

shutdown circuit will work.

Only when there’s a normal input voltage in the V_INpin, the

UVLO (under-voltage lockout, 1.3V/2.5V typ.) can make sure the

chip is till in the off state.

Because of the requirement of USB power the fault current

should be ensured less than 0.6A/1.1A (UTC US201/A, single port)

and 1.3A /1.5A (UTC US201B/C, dual ports).

FEATURES

* 80mꢀ(Typ) N-Channel MOSFET

* Supply Current:

– Switch On : 25μA(Typ)

– Switch Off : 1μA (Typ)

* Load Current 500mA for US201 and 1.0A for US201A/B/C

* Input Voltage from 2V ~ 5.5V

* In Off-State: Output Voltage can be Higher than Input

ORDERING INFORMATION

Ordering Number

Package

SOT-25

Packing

Tape Reel

Lead Free

Halogen Free

US201XXG-AF5-R

US201XXL-AF5-R

www.unisonic.com.tw

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QW-R502-302.H

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