Datasheet > 传感器/换能器 > 磁场传感器> A1642LKTN-I2-T

A1642LKTN-I2-T

更新时间： 2024-11-10 03:16:15

品牌	Logo	应用领域
急速微 - ALLEGRO		传感器换能器磁场传感器信息通信管理
页数	文件大小	规格书
13页	326K
描述
Two-Wire True Zero-Speed Miniature Differential Peak-Detecting Sensor with Continuous Calibration

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技术参数
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A1642LKTN-I2-T 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	SIP4,.03,50	Reach Compliance Code：	compliant
风险等级：	5.71	Is Samacsys：	N
其他特性：	REVERSE BATTERY PROTECTION	主体宽度：	1.55 mm
主体高度：	5.61 mm	主体长度或直径：	5.22 mm
JESD-609代码：	e3	最大磁场范围：	100 mT
最小磁场范围：	3 mT	安装特点：	THROUGH HOLE MOUNT
端子数量：	4	最大工作电流：	16.8 mA
最高工作温度：	150 °C	最低工作温度：	-40 °C
输出接口类型：	2-WIRE INTERFACE	输出类型：	ANALOG CURRENT
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	SIP4,.03,50
封装形状/形式：	RECTANGULAR	电源：	4/24 V
传感器/换能器类型：	MAGNETIC FIELD SENSOR,HALL EFFECT	子类别：	Other Sensors
最大供电电压：	24 V	最小供电电压：	4 V
表面贴装：	NO	技术：	BICMOS
端子面层：	Matte Tin (Sn)	端接类型：	SOLDER
Base Number Matches：	1

A1642LKTN-I2-T 数据手册

A1642LK

Two-Wire True Zero-Speed Miniature Differential

Peak-Detecting Sensor with Continuous Calibration

The A1642 is an optimized Hall effect sensing integrated circuit that provides a

user-friendly solution for true zero-speed digital ring-magnet sensing in two-wire

applications. This small package can be easily assembled and used in conjunction

with a wide variety of target shapes and sizes.

Package K, 4-pin SIP

The integrated circuit incorporates a dual-element Hall effect sensor and signal

processing that switches in response to differential magnetic signals created by

ring magnet poles. The circuitry contains a sophisticated digital circuit to reduce

system offsets, to calibrate the gain for air-gap–independent switchpoints, and to

achieve true zero-speed operation. Signal optimization occurs at power-on through

the combination of offset and gain adjust and is maintained throughout the operat-

ing time with the use of a running-mode calibration. The running-mode calibration

allows immunity to environmental effects such as micro-oscillations of the target

or sudden air gap changes.

The regulated current output is conﬁgured for two-wire applications and the

sensor is ideally suited for obtaining speed and duty cycle information in ABS

(antilock braking systems). The 1.5 mm spacing between the dual Hall elements is

optimized for ﬁne pitch ring-magnet-based conﬁgurations. For applications requir-

ing sensing of rotating ferrous gears and targets, refer to the ATS642LSH series of

products. The package is lead (Pb) free, with 100% matte tin leadframe plating.

1. VCC

2. No connection

3. Test pin (ﬂoat or tie to GND)

4. GND

Features and Beneﬁts

• Running mode calibration for continu- • Automatic Gain Control (AGC) for air

ous optimization

gap independent switchpoints

• Automatic Offset Adjustment (AOA)

for signal processing optimization

• True zero-speed operation

• Undervoltage lockout

• Single chip IC for high reliability

• Internal current regulator for 2-wire

operation

• Precise duty cycle signal over

operating temperature range

• Large operating air gaps

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V_CC..........................................28 V

Reverse-Supply Voltage, V_RCC........................–18 V

Operating Temperature

Ambient, T_A,...............................–40ºC to 150ºC

Maximum Junction, T_J(max)........................165ºC

Storage Temperature, T_S..................–65ºC to 170ºC

• Wide operating voltage range

Use the following complete part numbers when ordering:

Part Number

Packing*

I_CCTypical

A1642LK-I1-T

Bulk, 500 pieces/bag

6.0 Low to 14.0 High mA

Tape and reel, 13-inch reel

4000 pieces/reel

A1642LKTN-I1-T

A1642LK-I2-T

Bulk, 500 pieces/bag

7.0 Low to 14.0 High mA

Tape and reel, 13-inch reel

4000 pieces/reel

A1642LKTN-I2-T

*Contact Allegro for additional packing options.

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

A1642LK-DS

12 3 4 5 6 7...13

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