iC-DL

3-CHANNEL DIFFERENTIAL LINE DRIVER

Rev B1, Page 1/9

FEATURES

o 6 current-limited and short-circuit-proof push-pull drivers

o Differential 3-channel operation selectable

o Integrated impedance adaption for 30 to 140 Ω lines

o Wide power supply range from 4 to 40 V

o 200 mA output current (at VB = 24 V)

o Low output saturation voltage (< 0.4 V at 30 mA)

o Compatible with TIA/EIA standard RS-422

o Tristate switching of outputs enables use in buses

o Short switching times and high slew rates

o Low static power dissipation

o Schmitt trigger inputs with pull-down resistors, TTL and CMOS

compatible; voltage-proof up to 40 V

o Thermal shutdown with hysteresis

o Error message trigger input TNER

o Open-drain error output NER, active low with excessive chip

temperature and undervoltage at VCC or VB

o Option: Extended temperature range from -40 to 125 °C

APPLICATIONS

o Line drivers for 24 V control

engineering

o Linear scales and encoders

o MR sensor systems

PACKAGES

QFN28 5 x 5 mm²

BLOCK DIAGRAM

VCC

NER

VB1

VB2

VB3

A1

vert. 8V/div.

hor. 2µs/div

A2

A3

A4

A5

A6

GND1

0

0

DIFF

E6

E5

E4

E3

E2

E1

ENA

TNER

GND2

GND3

GND4

ERROR DETECTION

MODE

UNDERVOLTAGE &

OVERTEMPERATURE

1

1

0

1

iC-DL

LINE 100 m

PLC

&

1

Copyright © 2009 iC-Haus

http://www.ichaus.com