Datasheet > AH280A-PA

AH280A-PA

更新时间： 2024-01-17 03:27:20

品牌	Logo	应用领域
易亨 - ANACHIP		驱动器风扇
页数	文件大小	规格书
7页	181K
描述
Hall-Effect Smart Fan Driver

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技术参数
数据手册

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AH280A-PA 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	SOP8,.25	Reach Compliance Code：	unknown
风险等级：	5.84	最大磁场范围：	8 mT
最小磁场范围：	-8 mT	安装特点：	SURFACE MOUNT
端子数量：	8	最大工作电流：	20 mA
最高工作温度：	85 °C	最低工作温度：	-20 °C
输出：	OPEN-COLLECTOR	输出极性：	COMPLEMENTARY
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	SOP8,.25
封装形状/形式：	RECTANGULAR	电源：	12 V
子类别：	Other Sensors	表面贴装：	YES
Base Number Matches：	1

AH280A-PA 数据手册

AH280

Hall-Effect Smart Fan Driver

Features

General Description

AH280 is the integrated Hall sensor owned two

complementary outputs for motor’s coil driving, auto

locked shutdown and auto restart functions.

Functional block diagram includes that a regulator

with temperature-compensated band-gap, an

on-chip Hall voltage generator, a comparator, a

Schmitt trigger and two current output drivers. The

regulator can provide wide operational voltage

range. The Hall voltage generator is to amplify the

Hall voltage due to Hall effect. A Schmitt trigger is

to provide switching Hysteresis for noise rejection.

To avoid coil burning, rotor-lock detection circuit will

shutdown the output driver if detect rotor-lock status.

A rotation recovery circuit is to restart the motor

after rotor-lock is removed. In addition, the auto

re-start time is flexible by adjusting the capacitance

(C_T).

- On chip Hall plate

- Built-in Zener diode protection for output driver

- Built-in protection diode for power reverse

connecting

- Rotor-lock detection

- Automatically restart after release of motor

locking

- Adjustable auto restart time

- Operating voltage: 3.5~20 V

- Max Output current: I_O(AVE)= 500mA

- Packages: SIP-5L, SOP-8L, SOP-8L EP

- Less external component

Pin Assignments

Pin Descriptions

Front View

SIP-5L

Symbol P/I/O Pin #

Description

Timing cap.

( Branded side)

VCC

Positive power supply

Driver output

DOB

GND

Driver inverted output

Ground

1 2 3 4 5

SIP-5L

SOP-8L/SOP-8L EP

Symbol

Pin #

Description

( Top view )

VCC

Positive power supply

Driver output

VCC

DOB

Driver inverted output

Not connected for SOP8

Timing cap.

4,6,7

DOB

GND

Ground

GND

SOP-8L / SOP-8L EP

This datasheet contains new product information. Analog Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev. 0.7 Apr 16, 2004

1/7

12 3 4 5 6 7

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