Datasheet > AH5798-YG-13

AH5798-YG-13

更新时间： 2022-12-17 01:05:50

品牌	Logo	应用领域
美台 - DIODES		风扇电动机控制电机控制器
页数	文件大小	规格书
11页	195K
描述
SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER

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AH5798-YG-13 数据手册

AH5798

SINGLE PHASE HALL EFFECT LATCH SMART

FAN MOTOR CONTROLLER

Description

Pin Assignments

( Top View )

The AH5798 is a single chip solution for driving single-coil

brushless direct current (BLDC) fans and motors. The

integrated full-bridge driver output stage uses soft switching

to minimize audible switching noise and electromagnetic

interference (EMI) providing a low noise solution.

Vdd

Vss

To help protect the motor coil, the AH5798 provides Rotor

Lock Protection which shuts down output drive if rotor lock is

detected. The device automatically re-starts when the rotor

lock is removed. Over temperature shutdown provides

thermal protection for the device.

O1 3

SOT89-5L

A Tachometer output is provided by open-drain Frequency

Generator (FG) Pin which allows external interface to monitor

motor rotation or speed. The FG output is the magnetic

change frequency.

( Top View)

Vdd

The AH5798 is available in space saving SOT89-5L and

thinner TSOT25 packages.

Vss

Features

TSOT25

•

Supports single-coil full-wave DC fan drivers

Built-in Hall sensor and input amplifier

Operating Voltage: 1.8V to 5.5V

Applications

Soft switching for low noise DC fan motor applications

Rotor Lock Protection (Lock detection, output shutdown

and automatic re-start)

•

3.3V / 5V Min. BLDC Cooling Fans

Netbook/ Notebook BLDC fans

•

Thermal protection

Low Voltage/ Low Power BLDC Motors

Tachometer (FG) output

No external timing capacitor - Reduces the numbers of

external components required

•

Low profile packages: SOT89-5L and TSOT25

“Green” Molding Compound

1 of 11

www.diodes.com

June 2010

AH5798

Document number: DS32001 Rev. 2 - 2

12 3 4 5 6 7...11

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