Datasheet > UM9711

UM9711

更新时间： 2024-10-31 01:10:03

品牌	Logo	应用领域
英联电子 - UNIONSEMI		/
页数	文件大小	规格书
10页	474K
描述
90m(ohm), 1.5A High-Side Power Switches with Flag

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UM9711 数据手册

UM9711

90mΩ, 1.5A High-Side Power Switches with Flag

UM9711S SOT23-5

UM9711S8 SOP8

UM9711AS8 SOP8

General Description

The UM9711/UM9711A is a low voltage, single N-MOSFET high-side power switch, optimized

for self-powered and bus-powered Universal Serial Bus (USB) applications. The

UM9711/UM9711A is equipped with a charge pump circuitry to drive the internal MOSFET

switch; the switch's low R_DS(ON), 90mΩ, meets USB voltage drop requirements. The UM9711

________

provides a FLG signal pin which is an N-Channel open drain MOSFET output. The flag output

is available to indicate fault conditions to the local USB controller. The UM9711A doesn’t have

such function.

Additional features include soft-start to limit inrush current during plug-in, thermal shutdown to

prevent catastrophic switch failure from high-current loads, under-voltage lockout (UVLO) to

ensure that the device remains off unless there is a valid input voltage present. The maximum

current is limited to typically 2.5A in dual ports in accordance with the USB power requirements,

lower quiescent current as 40μA making this device ideal for portable battery-operated equipment.

The UM9711 is available in SOT23-5 and SOP8 packages requiring minimum board space and

smallest components while the UM9711A is available in SOP8 package.

Applications

Features



USB Bus/Self-Powered Hubs

USB Peripherals



Compliant to USB Specifications

Built-in N-MOSFET, Typical R_DS(ON): 90mΩ

Output can be Forced Higher than Input

(Off-State)

ACPI Power Distribution

PC Card Hot Swap

Notebook, Motherboard PCs

Battery-Powered Equipment

Hot-Plug Power Supplies

Battery-Charger Circuits



Low Supply Current :

40µA Typical at Switch on State

0.1µA Typical at Switch off State

Guaranteed 1.5A Continuous Load Current

Wide Input Voltage Ranges : 2.5V to 5.5V

Open-Drain Fault Flag Output (UM9711S,

UM9711S8)



Hot Plug-in Application (Soft-Start)

1.7V Typical Under-Voltage Lockout

(UVLO)



Current Limiting Protection

Thermal Shutdown Protection

Reverse Current Flow Blocking (No Body

Diode)

________________________________________________________________________

http://www.union-ic.com Rev.02 Jan.2015 1/10

12 3 4 5 6 7...10

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与UM9711相关器件

型号	品牌	获取价格	描述	数据表
UM9711AS8	UNIONSEMI	获取价格	90m(ohm), 1.5A High-Side Power Switches with Flag
UM9711S	UNIONSEMI	获取价格	90m(ohm), 1.5A High-Side Power Switches with Flag
UM9711S8	UNIONSEMI	获取价格	90m(ohm), 1.5A High-Side Power Switches with Flag
UM9926	UNITPOWER	获取价格	N-Ch 20V Fast Switching MOSFETs
UM9989	MICROSEMI	获取价格	FAST MRI PROTECTION DIODES
UM9989_09	MICROSEMI	获取价格	FAST MRI PROTECTION DIODES
UM9995	MICROSEMI	获取价格	ULTRA LOW MAGNETIC MRI SWITCHING DIODES
UM9995G	MICROSEMI	获取价格	Trans Voltage Suppressor Diode, Unidirectional
UM9995SM	MICROSEMI	获取价格	Trans Voltage Suppressor Diode, Unidirectional
UMA 0204, UMB 0207	VISHAY	获取价格	Ultra Precision Thin Film MELF Resistors

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