ATS277C-PLA-B

更新时间： 2024-11-20 06:38:39

品牌	Logo	应用领域
易亨 - ANACHIP		/
页数	文件大小	规格书
7页	199K
描述
Complementary Output Hall Effect Latch

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ATS277C-PLA-B 数据手册

ATC

Complementary Output Hall Effect Latch

ATS276/277

Features

General Description

- On-chip Hall sensor with two different sensitivity

and hysteresis settings for ATS276/277

- 3.5V to 20V operating voltage

ATS276/277 are integrated Hall sensors with output

drivers, mainly designed for electronic commutation

of brush-less DC Fan. This IC internally includes

the regulator, protecting diode, Hall plate, amplifier,

- 400mA (avg) output sink current

- Build-in protecting diode only for chip reverse

power connecting

comparator, and

pair of complementary

open-collector outputs (DO, DOB).

While the magnetic flux density (B) is larger than

operate point (Bop), DO will turn on (low), and

meanwhile DOB will turn off (high). Each output is

latched until B is lower than release point (Brp),

and then DO、DOB transfer each state.

- -20°C to 85°C operating temperature

- Low profile 4 pin SIP package

Applications

For DC fan application, sometimes need to test

power reverse connection condition. Internal diode

only protects chip-side but not for coil-side. If

necessary, add one external diode to block the

reverse current from coil-side.

- Dual-coil Brush-less DC Motor

- Dual-coil Brush-less DC Fan

- Revolution Counting

- Speed Measurement

Ordering Information

ATS27X X - X X X - X

Magnetic

Packing

Part No.

Wafer Body

Lead

Package

P: SIP-4L

Characteristics

Blank or

6 : ATS276

7 : ATS277

L : Lead Free

Blank: Normal

Blank : Tube or Bulk

276:A or B or C

: Tape & Reel 277:A or B

A~Z : if necessary

to specify

Typical Application Circuit

27X

coil1

coil2

Vcc

Brush-less DC Fan

This datasheet contains new product information. Anachip 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.B1 Mar 17, 2004

1/7

12 3 4 5 6 7

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