Datasheet > US203_11

US203_11

更新时间： 2024-09-17 07:09:07

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	249K
描述
80mΩ, 0.6/1.5A HIGH-SIDE POWER SWITCHES WITH FLAG

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US203_11 数据手册

UNISONIC TECHNOLOGIES CO., LTD

US203

Preliminary

CMOS IC

80mΩ, 0.6/1.5A HIGH-SIDE POWER

SWITCHES WITH FLAG

DESCRIPTION

The UTC US203 are low voltage cost-effective high-side power switches

SOT-25

with flag function. These devices are particularly suitable for self-powered

and bus-powered USB applications. The build-in N-MOSFET’s R_DS(ON)which

meets the requirements of USB voltage drop is as low as 80mΩ.

The UTC US203 contains a charge pump circuitry to drive the internal

MOSFET switch and also incorporate such protection circuits: soft-start

circuit protect these devices from being damaged by limiting inrush current

during plug-in; thermal shutdown circuit is used to prevent catastrophic

switch failure from high-current loads. UVLO is used to ensure that the

device remains off unless there is a valid input voltage present.

SOP-8

A flag output is designed to indicate fault conditions to the local USB

controller. Fault current is limited to typically 2.5A for UTC US203AH/AL in

dual ports and 1A for UTC US203CH/CL in single port in accordance with the

USB power requirements, lower quiescent current as 25μA making this

device ideal for portable battery-operated equipment.

The UTC US203 are applied in USB Bus/Self powered hubs, USB

peripherals, NB, PCs, PC card hot swap, battery-powered equipment,

hot-plug power supplies, battery-charger circuits , ACPI power distribution.

FEATURES

* Input Voltage Varies From 2.5V to 5.5V

* Built-in N-MOSFET

* Open-Drain Fault Flag Output To Indicate Fault

Conditions

* Output Can Be Forced Higher Than Input (Off-State)

* Typical Low Supply Current:

- Switch On: 25μA (TYP)

* Protection Circuits:

- Soft-start( Hot plug-in application)

- UVLO 1.7V (TYP.)

- Switch Off: 1μA (TYP)

* Guaranteed Continuous Load Current: 1.5A for

US203AH/AL and 0.6A for US203CH/CL

- Current Limiting Protection

- Thermal Shutdown Protection

* Reverse Current Flow Blocking (No Body Diode)

ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

US203XXL-AF5-R

US203XXL-S08-R

US203XXG-AF5-R

US203XXG-S08-R

SOT-25

SOP-8

Tape Reel

US203XXL-AF5-R

(1) R: Tape Reel

(2) AF5: SOT-25, S08: SOP-8

(3) G: Halogen Free, L: Lead Free

(4) AH: 1.5A/Active High, AL: 1.5A/Active Low,

CH: 0.6A/Active High, CL: 0.6A/Active Low

(1)Packing Type

(2)Package Type

(3)Lead Free

(4)Output Current / EN Function

www.unisonic.com.tw

1 of 7

QW-R502-435.e

12 3 4 5 6 7

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与US203_11相关器件

型号	品牌	获取价格	描述	数据表
US203_15	UTC	获取价格	HIGH-SIDE POWER SWITCHES WITH FLAG
US203_18	UTC	获取价格	HIGH-SIDE POWER SWITCHES WITH FLAG
US203AHG-AF5-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO5,
US203AHG-S08-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO8,
US203AHL-AF5-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO5
US203AHL-S08-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO8
US203ALG-AF5-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO5,
US203ALG-S08-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO8,
US203ALL-AF5-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO5
US203ALL-S08-R	UTC	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, CMOS, PDSO8

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