Datasheet > AH477A

AH477A

更新时间： 2024-09-12 06:36:47

品牌	Logo	应用领域
BCDSEMI		/
页数	文件大小	规格书
10页	370K
描述
SINGLE PHASE HALL EFFECT LATCH

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AH477A 数据手册

Data Sheet

SINGLE PHASE HALL EFFECT LATCH

AH477A

General Description

Features

The AH477A is an integrated Hall sensor with H-

bridged output driver designed for brushless DC motor

applications. The device includes an on-chip Hall sen-

sor for magnetic sensing, an amplifier that amplifies

the Hall voltage, a comparator to provide switching

hysteresis for noise rejection, a bi-directional drivers

for sinking and driving large current load. It also

includes an internal bandgap regulator to provide tem-

perature compensated bias for internal circuits and

allows a wide operating supply voltage range.

On-Chip Hall Sensor

Operating Voltage: 3.5V to 18V

H-Bridge Output Drivers for Single Coil

Internal Bandgap Regulator for Temperature

Compensation

Low Output Switching Current Noise

Operating Temperature: -20 C to 85 C

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

ESD Rating: 6000V (Human Body Model)

Suitable for PWM Power Supply Control Speed

Placing the device in a variable magnetic field, if the

magnetic 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

Applications

reverses and falls below B

then causes DO to be

RP,

Single-coil Brushless DC Motor

Single-coil Brushless DC Fan

turned to drive and DOB turned to sink.

The AH477A is available in TO-94 (SIP-4L) package.

TO-94

Figure 1. Package Type of AH477A

Oct. 2009 Rev. 1. 2

BCD Semiconductor Manufacturing Limited

12 3 4 5 6 7...10

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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
AH477-P4L-A	DIODES	获取价格	暂无描述
AH477-P4L-A	ICT	获取价格	Analog Circuit, 1 Func, PSIP4, LEAD FREE, SIP-4
AH477-P4L-A	ANACHIP	获取价格	Sensor/Transducer, Bipolar, 4 Pin, Plastic/epoxy
AH477-P4LA-A	DIODES	获取价格	Analog Circuit, 1 Func, LEAD FREE, SIP-4