Description
The A1354 device is a high precision, programmable 2-wire
Hall effect linear sensor IC with a pulse width modulated
(PWM) output. The duty cycle (D) of the PWM output signal
is proportional to the applied magnetic field. The A1354
device converts an analog signal from its internal Hall circuit
to a digitally encoded PWM output signal. The coupled noise
immunity of the digitally encoded PWM output is far superior
to the noise immunity of an analog output signal.
The BiCMOS, monolithic circuit inside of the A1354 integrates
a Hall element, precision temperature-compensating circuitry
to reduce the intrinsic sensitivity and offset drift of the Hall
element, a small-signal high-gain amplifier, proprietary
dynamic offset cancellation circuits, and PWM conversion
circuitry. The dynamic offset cancellation circuits reduce
the residual offset voltage of the Hall element. Hall element
offset is normally caused by device overmolding, temperature
dependencies, and thermal stress. The high frequency offset
cancellation (chopping) clock allows a greater sampling rate,
which increases the accuracy of the output signal and results
in faster signal processing capability.
The A1354 device is provided in a lead (Pb) free 4-pin single
inline package (KT suffix), with 100% matte tin leadframe
plating.
A1354-DS, Rev. 1
Features and Benefits
?Designed for automotive, battery-powered applications
?Customer programmable quiescent duty cycle, sensitivity,
and PWM carrier frequency, through VCC pin
?Simultaneous programming of duty cycle, sensitivity, and
PWM carrier frequency, for system optimization
?Factory programmed sensitivity temperature coefficient
and quiescent duty cycle drift
?Selectable unidirectional or bidirectional quiescent
duty cycles
?Pulse width modulated (PWM) output provides increased
noise immunity compared to analog output
?Temperature-stable quiescent duty cycle output and
sensitivity
High Precision 2-Wire Linear Hall Effect Sensor IC
with Pulse Width Modulated Output
Package: 4-pin SIP (suffix KT)
Functional Block Diagram
Not to scale
A1354
Continued on the next page&
1 mm case thickness
VCC
GND
R
Sens
V
CC
1
2
2
1
Temperature
Compensation
Programming
Interface
Chopper
Switches
Programming
Logic
Signal
Recovery
Switched
Capacitor
Control
PWM Carrier
Generation
and Trimming
Regulator
% Duty Cycle
Temperature
Coefficient
Voltage
Controlled
Current
Source
% Duty
Cycle
Sensitivity
and Sensitivity
TC Trim
Amp
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相关代理商/技术参数
A1354KKTTN-T
功能描述:IC HALL EFFECT SENSOR 2WIRE 4SIP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR
A1354P1-2
制造商:APEM 功能描述:
A1354P1-6
功能描述:SWITCH HARDWARE RoHS:是 类别:开关 >> 配件 系列:- 标准包装:100 系列:- 其它名称:886.0007886.0007-ND
A1354P2-4
制造商:APEM 功能描述:
A1354P2-5
功能描述:SWITCH HARDWARE RoHS:是 类别:开关 >> 配件 系列:- 标准包装:100 系列:- 其它名称:886.0007886.0007-ND
A1355P1-2
制造商:APEM 功能描述:
A1355P1-3
制造商:APEM 功能描述:
A1355P1-8
制造商:APEM 功能描述: