Datasheet > AH477

AH477

更新时间： 2024-09-12 03:18:15

品牌	Logo	应用领域
BCDSEMI		/
页数	文件大小	规格书
2页	50K
描述
SINGLE PHASE HALL EFFECT LATCH

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中文翻译

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AH477 数据手册

Product Brief

SINGLE PHASE HALL EFFECT LATCH

AH477

Description

Parametric Table

The AH477 is an integrated Hall sensor with output driver

designed for electronic commutation of brushless DC

motor applications. The device includes an on-chip Hall

sensor for magnetic sensing, an amplifier that amplifies

the Hall voltage, a comparator to provide switching hys-

teresis for noise rejection, a bi-directional drivers for sink-

ing and driving large current load. It also includes an

internal bandgap regulator to provide temperature com-

pensated bias for internal circuits and allows a wide oper-

ating supply voltage range.

Supply Voltage (V)

4 to 20

0.25

1.0

Output Down Saturation Voltage (V)

Output Up Saturation Voltage (V)

Supply Current (mA)

Hysteresis (Gauss)

Package

TO-94

Placing the device in a variable magnetic field, if the mag-

netic flux density is larger than threshold B , the DO is

turned to sink and DOB is turned to drive. This output

state is held until the magnetic flux density reverses and

falls below B then causes DO to be turned to driveand

RP,

DOB turned to sink.

Features

Benefits

On-Chip Hall Sensor

Minimum External Components

Good High Temperature Performance

High Efficiency

Operating Voltage: 4V to 20V

H-Bridge Output Drivers for Single Coil

Internal Bandgap Regulator for Temperature Com-

pensation

Rotate Reposefully

Low Output Switching Current Noise

-20 C to 85 C Operating Temperature

Low Profile TO-94 (SIP-4L) Package

ESD Rating: 3000V (Human Body Model)

Applications

Additional Available Materials

Single-Coil Brushless DC Motor

Single-Coil Brushless DC Fan

Samples

Preliminary Datasheet

Reliability Report

ESD Report

Nov. 2007

BCD Semiconductor Manufacturing Limited

中文翻译

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AH477-P4-A	ICT	获取价格	Analog Circuit, 1 Func, PSIP4, SIP-4
AH477-P4A-A	DIODES	获取价格	Analog Circuit, 1 Func, SIP-4
AH477-P4-B	DIODES	获取价格	Sensor/Transducer, Bipolar, 4 Pin, Plastic/epoxy,
AH477-P4-B	ICT	获取价格	Analog Circuit, 1 Func, PSIP4, SIP-4