Features and Benefits
" Fully optimized differential digital gear tooth sensor IC
" Running Mode Lockout
" Unique algorithms for increased vibration immunity
" AGC and reference adjust circuit
" Air gap independent switchpoints
" Digital output representing gear profile
" Precise duty cycle throughout operating temperature range
" Large operating air gap range
" Short power-on time
" True zero-speed operation
" Undervoltage lockout (UVLO)
" Wide operating voltage range
" Internal current regulator for two-wire operation
" Single-chip sensing IC for high reliability
" Robust test coverage capability using Scan Path
and IDDQ measurement
Description
The ATS685LSH is an optimized Hall-effect sensing integrated
circuit and rare-earth pellet combination that provides a
user-friendly solution for true zero-speed digital gear-tooth
sensing in two-wire applications. The sensor IC consists of a
single-shot molded plastic package that includes a samarium
cobalt pellet, a pole piece, and a Hall Effect IC that has been
optimized to the magnetic circuit. This small package can be
easily assembled and used in conjunction with a wide variety
of gear shapes and sizes.
The single integrated circuit incorporates a dual element
Hall-effect sensor IC and signal processing circuitry that
switches in response to differential magnetic signals created
by ferromagnetic targets. The device contains a sophisticated
compensating circuit to eliminate magnetic and system offsets.
Digital tracking of the analog signal is used to achieve true
zero speed operation. Advanced calibration algorithms are
used to adjust the device gain and offset at power-up, resulting
in air gap independent switchpoints, which greatly improves
output accuracy. In addition, advanced algorithms mitigate the
effect of system anomalies such as target vibration and sudden
changes in air gap.
The regulated current output is configured for two-wire
operation. This sensor IC is ideal for obtaining edge and duty
cycle information in gear-toothbased applications such as
transmission speed.
The ATS685 is provided in a 4-pin SIP package that is lead
(Pb) free, with 100% matte tin leadframe plating.
ATS685LSH-DS
Two-Wire, Zero Speed
Differential Gear Tooth Sensor IC
Package: 4-pin SIP (suffix SH)
Functional Block Diagram
Not to scale
ATS685LSH
GND
VCC
TEST
Multiplexor
Voltage
Regulator
Hall
Amp
Offset
Adjust
Reference
Generator
and
Lockout
PDAC
AGC
Synchronous Digital Controller
NDAC
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ATS692LSHTN-RSNPH-T
功能描述:IC HALL EFFECT SENSOR 4SIP 制造商:allegro microsystems, llc 系列:- 包装:带卷（TR） 零件状态:有效 功能:专用型 技术:霍尔效应 极化:- 感应范围:69% 跳闸，31% 释放 测试条件:-40°C ~ 150°C 电压 - 电源:4 V ~ 24 V 电流 - 电源（最大值）:16.5mA 电流 - 输出（最大值）:- 输出类型:电流 特性:- 工作温度:-40°C ~ 150°C（TA） 封装/外壳:4-SIP 模块 供应商器件封装:4-SIP 标准包装:800
ATS693LSGTN-RSNYPH-T
功能描述:IC HALL EFFECT SENSOR 4SIP 制造商:allegro microsystems, llc 系列:- 包装:带卷（TR） 零件状态:有效 功能:专用型 技术:霍尔效应 极化:- 感应范围:69% 跳闸，31% 释放 测试条件:-40°C ~ 150°C 电压 - 电源:4 V ~ 24 V 电流 - 电源（最大值）:16.5mA 电流 - 输出（最大值）:- 输出类型:电流 特性:- 工作温度:-40°C ~ 150°C（TA） 封装/外壳:4-SIP 模块 供应商器件封装:4-SIP 标准包装:800
ATS699LSN-FSWPH-T
功能描述:2-WIRE DIFFERENTIAL SPEED & DIRE 制造商:allegro microsystems, llc 系列:- 零件状态:在售 用于测量:旋转位置 技术:电阻 旋转角 - 电气，机械:- 线性范围:- 输出:电阻 输出信号:顺时针增加 致动器类型:外磁铁，不含 线性度:- 电阻容差:- 电压 - 电源:4 V ~ 24 V 安装类型:通孔 端子类型:焊接垫 工作温度:-40°C ~ 150°C 标准包装:2,400
ATS699LSN-RSWPH-T
功能描述:2-WIRE DIFFERENTIAL SPEED & DIRE 制造商:allegro microsystems, llc 系列:- 零件状态:在售 用于测量:旋转位置 技术:电阻 旋转角 - 电气，机械:- 线性范围:- 输出:电阻 输出信号:顺时针增加 致动器类型:外磁铁，不含 线性度:- 电阻容差:- 电压 - 电源:4 V ~ 24 V 安装类型:通孔 端子类型:焊接垫 工作温度:-40°C ~ 150°C 标准包装:2,400
ATS75
制造商:未知厂家 制造商全称:未知厂家 功能描述:LOW- OLTAGE 2-WIRE DIGITAL TEMPERATURE SENSOR With Thermal Alarm
ATS75D8
制造商:未知厂家 制造商全称:未知厂家 功能描述:LOW- OLTAGE 2-WIRE DIGITAL TEMPERATURE SENSOR With Thermal Alarm
ATS75M8
制造商:未知厂家 制造商全称:未知厂家 功能描述:LOW- OLTAGE 2-WIRE DIGITAL TEMPERATURE SENSOR With Thermal Alarm