AATS643LSH_06 Datasheet, PDF (2/16 Pages) Allegro MicroSystems – Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update

ATS643LSH
Self-Calibrating, Zero-Speed Differential
Gear Tooth Sensor with Continuous Update
Features and Benefits (continued)
▪ AGC and reference adjust circuit
▪ True zero-speed operation
▪ Undervoltage lockout
▪ Wide operating voltage range
▪ Defined power-on state
Description (continued)
the device specifications even through large changes in air gap
or temperature.
The regulated current output is configured for two-wire operation,
offering inherent diagnostic information. This device is ideal for
obtaining speed and duty cycle information in gear-tooth based
applications such as transmission speed sensing.
Part Number
Pb-free¹
ATS643LSHTN-I1-T
Yes
Packing²
Tape and Reel 13-in. 800 pcs./reel
I_CC Typical
6.0 Low to 14.0 High mA
ATS643LSHTN-I2-T
Yes
Tape and Reel 13-in. 800 pcs./reel
7.0 Low to 14.0 High mA
1_{Pb-based variants are being phased out of the product line. Certain variants cited in this footnote are in production but have}
been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted
to existing customer applications. The device should not be purchased for new design applications because obsolescence
in the near future is probable. Samples are no longer available. Status change: May 1, 2006. These variants include:
ATS643LSHTN-I1 and ATS643LSHTN-I2.
2_{Contact Allegro for additional packing options.}
3_{Some restrictions may apply to certain types of sales. Contact Allegro for details.}
Absolute Maximum Ratings
Characteristic
Supply Voltage
Reverse-Supply Voltage
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
V_CC
V_RCC
T_A
T_J(max)
T_stg
Notes
See Power Derating section
Range L
Rating
–
–18
–40 to 150
165
–65 to 170
Units
–
V
ºC
ºC
ºC
Pin-out Diagram
1234
Terminal List
Name
Description
VCC
Connects power supply to chip
NC
No connection. Float or tie to VCC
TEST
For Allegro use, float or tie to GND
GND
Ground terminal
Number
1
2
3
4
Allegro MicroSystems, Inc.
2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com