Datasheet > US91AEDC

US91AEDC

更新时间： 2024-01-12 13:10:47

品牌	Logo	应用领域
迈来芯 - MELEXIS		驱动器风扇电动机控制
页数	文件大小	规格书
12页	307K
描述
24V Hall IC Fan Driver

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技术参数
数据手册

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US91AEDC 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	SOP, SOP8,.25	Reach Compliance Code：	compliant
风险等级：	5.73	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP8,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	电源：	24 V
认证状态：	Not Qualified	子类别：	Motion Control Electronics
最大供电电流 (Isup)：	4 mA	标称供电电压 (Vsup)：	24 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
Base Number Matches：	1

US91AEDC 数据手册

US90A / US91A

24V Hall IC Fan Driver

Features and Benefits

Application Examples

ꢀ Low cost

ꢀ 12V/24V fans

ꢀ High sensitivity Hall Sensor

ꢀ Peak current up to 500mA

ꢀ Locked rotor protection and auto-restart

ꢀ Power-efficient CMOS and power MOSFETs

ꢀ Built-in output protection clamping diode

ꢀ Integrated tachometer (US90A) or alarm (US91A) signal output

ꢀ 2-coil fan driver with FG/RD output in 4-pin VK / VA

and 8-pin narrow SOIC packages (all RoHS Compliant)

Ordering Information

Part No.

US90A

Temperature Code

E (-40°C to 85°C)

Package Code

VK (4-pin TO-92)

DC (8-pin narrow SOIC)

VA (4-pin TO-92 flat)

US91A

E (-40°C to 85°C)

VK (4-pin TO-92)

DC (8-pin narrow SOIC)

VA (4-pin TO-92 flat)

1 Functional Diagram

2 General Description

The US90A/91A is a one-chip solution for driving

two-coil brushless DC cooling fans.

Based on the advanced Melexis CMOS process,

the IC contains a Hall-effect sensor, dynamic

offset correction and low side output drivers.

Frequency Generator or Rotation Detection is

available. The open-drain output makes the

connectivity with any external interface such as

hardware monitoring or Super I/O IC easier.

These features are combined with the Melexis

patented no-V_DDdesign to fit the IC in small 4-pin

VK and VA package.

The device is also delivered in DC package for

automatic assembly.

390109026302

Rev 002

Page 1 of 12

Data Sheet

Apr/07

12 3 4 5 6 7...12

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