Dual Output Narrow Pitch

Differential Speed and Direction Sensor IC

A17502

4

Allegro MicroSystems

955 Perimeter Road

Manchester, NH 03103-3353 U.S.A.

www.allegromicro.com

TYPICAL APPLICATION CIRCUIT

VCC

GND

OUTA

OUTB

A17502

VSUPPLY

VPULLUP[2]

VOUT(B)

VOUT(A)

VPULLUP[2]

RPULLUP(B)

CLOAD(B)

CLOAD(A)

RPULLUP(A)

RSERIES

CBYPASS

COMPONENTS [3]

Characteristic

Symbol

Notes

Value (Typ.)

Unit

Series Resistance

RSERIES

Recommended for typical EMC requirements

100

Ω

OUTA Pullup Resistance

RPULLUP(A)

Required for functional operation; recommended value

dependent on programming options

1

kΩ

OUTB Pullup Resistance

RPULLUP(B)

Required for functional operation; recommended value

dependent on programming options

1

kΩ

Bypass Capacitance

CBYPASS

Recommended for typical EMC requirements

100

nF

OUTA Load Capacitance

CLOAD(A)

Recommended for typical EMC requirements; required for

certain programming options

2.2

nF

OUTB Load Capacitance

CLOAD(B)

Recommended for typical EMC requirements; required for

certain programming options

2.2

nF

[2]

VPULLUP may be connected to VCC if VCC meets VPULLUP requirements. See Operating Characteristics section.

[3]

Components listed are typical recommended values and are not suited for all applications and/or programmable options. See Operating Characteristics and Selection Guide for more information.