Datasheet > US890EVK

US890EVK

更新时间： 2024-01-12 12:28:36

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	316K
描述
Two-Coil Fan Driver - High Output Current

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技术参数
数据手册

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US890EVK 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	TO-92	包装说明：	,
针数：	3	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.74	Is Samacsys：	N
模拟集成电路 - 其他类型：	BRUSHLESS DC MOTOR CONTROLLER	JESD-30 代码：	O-XBCY-T4
JESD-609代码：	e3	功能数量：	1
端子数量：	4	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	1.2 A
封装主体材料：	UNSPECIFIED	封装形状：	ROUND
封装形式：	CYLINDRICAL	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	最大供电电压 (Vsup)：	18 V
最小供电电压 (Vsup)：	2.6 V	标称供电电压 (Vsup)：	12 V
表面贴装：	NO	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	THROUGH-HOLE	端子位置：	BOTTOM
处于峰值回流温度下的最长时间：	40	Base Number Matches：	1

US890EVK 数据手册

US890 / US891

Two-Coil Fan Driver – High Output Current

Features and Benefits

Application Examples

ꢀ Peak output current up to 1200mA

ꢀ Low start-up voltage

ꢀ Low output resistance

ꢀ 5V/12V DC brushless motor/fan

ꢀ PC, server, laptop cooling fan

ꢀ Power supply cooling fan

ꢀ Large and small fan size

ꢀ High sensitivity integrated Hall Sensor

ꢀ Power-efficient CMOS and power MOSFETs

ꢀ Built-in output protection clamping diode

ꢀ Locked rotor protection and auto-restart

ꢀ Integrated tachometer (US890) or alarm (US891)

signal protected output

ꢀ Low cost

ꢀ 2-coil fan driver with FG/RD output in

RoHS Compliant 4-pin VK package

Ordering Information

Part No.

US890

US891

Temperature Code

E (-40°C to 85°C)

Package Code

VK (4-pin TO-92)

1 Functional Diagram

2 General Description

The US890/891 is a one-chip solution for driving

two-coil brushless DC motors and fans.

Based on the advanced Melexis CMOS process,

the IC contains a Hall-effect sensor, dynamic

offset correction and powerful output drivers with

1200mA peak output current capability.

Specially designed for driving large fans, the

device is optimized for low start-up voltage.

Frequency Generator or Rotation Detection is

available. The open-drain output makes easier the

connectivity with any external interface such as

hardware monitoring or Super I/O IC.

These features are combined with the Melexis

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

pin VK package.

3901000890

Rev 002

Page 1 of 12

Data Sheet

Sep/07

12 3 4 5 6 7...12

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