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| 型号： | A1351KKTTN-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/24页 |
| 文件大小： | 663K |
| 描述： | IC SENSOR HALL EFFECT 4-SIP |
| 产品培训模块： | Current Sensor |
| 产品变化通告： | Product Obsolescence 09/Nov/2011 |
| 标准包装： | 4,000 |
| 传感范围： | 0.055% ~ 0.095% DC/G |
| 类型： | 线性 - 单极，双极 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 10mA |
| 电流 - 输出（最大）： | 1mA |
| 输出类型： | 数字，推挽式 |
| 特点： | 高精度 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 4-SIP |
| 供应商设备封装： | 4-SIP |
| 包装： | 带卷 (TR) |
Description
The A1351 device is a high precision, programmable linear Hall
effect sensor IC with a pulse width modulated (PWM) output.
The duty cycle, D, of the PWM output signal is proportional
to an applied magnetic field. The A1351 device converts an
analog signal from its internal Hall element 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. A simple RC network
can be used to convert the digital PWM signal back to analog
signal.
The BiCMOS, monolithic circuit inside of the A1351 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 over molding, temperature
dependencies, and thermal stress. The high frequency offset
cancellation (chopping) clock allows for a greater sampling
rate, which increases the accuracy of the output signal and
results in faster signal processing capability.
Features and Benefits
" Pulse width modulated (PWM) output provides increased noise
immunity compared to an analog output
" 1 mm case thickness provides greater coupling for current
sensing applications
" Push/pull output
" Customer-programmable offset and sensitivity
" Factory-programmed 0%/癈 Sensitivity Temperature Coefficient
" Programmability at end-of-line
" Selectable unipolar or bipolar quiescent duty cycles
" Selectable sensitivity range between 0.055% and 0.095% D/G
" Temperature-stable quiescent duty cycle output and sensitivity
" Precise recoverability after temperature cycling
" Output duty cycle clamps provide short circuit diagnostic
capabilities
" Optional 50% D calibration test mode at device power-up
" Wide ambient temperature range: 40癈 to 125癈
" Resistant to mechanical stress
A1351
A1351-DS, Rev. 4
High Precision Linear Hall Effect Sensor IC
with a Push/Pull, Pulse Width Modulated Output
Functional Block Diagram
Continued on the next page&
Package: 4 pin SIP (suffix KT)
Not to scale
VCC
V+
PWMOUT/
Programming
GND
V
REG
C
BYPASS
1
2
2
1
Temperature
Compensation
Chopper
Switches
PWM
Frequency Trim
Signal
Recovery
PWM Carrier
Generation
PWM
Modulation
Logic with
Push-Pull
Output
Regulator
Signal
Conditioning
% Duty Cycle
Temperature
Coefficient
% Duty
Cycle
Sensitivity
Trim
Amp
1 mm case thickness
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A1351LKTTN-T | 功能描述:IC SENSOR HALL EFFECT 4-SIP 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 |
| A1352-035 | 制造商:AVX Corporation 功能描述: |
| A1352-037 | 制造商:AVX Corporation 功能描述: |
| A13532-43N | 制造商:Harris Corporation 功能描述: |
| A1354 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:High Precision 2-Wire Linear Hall Effect Sensor IC with Pulse Width Modulated Output |
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