iC-HX
3-CHANNEL DIFFERENTIAL COLD LINE DRIVER
Rev A1, Page 1/11
FEATURES
APPLICATIONS
♦ Line drivers for 24 V control
engineering
♦ Linear scales and encoders
♦ MR sensor systems
♦ 6 current-limited and short-circuit-proof push-pull drivers
♦ Differential 3-channel operation selectable
♦ Integrated impedance adaption for 30 to 140 Ω lines
♦ Wide power supply range from 4 to 40 V
♦ 200 mA output current (at VB = 24 V)
♦ Low output saturation voltage (< 0.4 V at 30 mA)
♦ Compatible with TIA/EIA standard RS-422
♦ Tristate switching of outputs enables use in buses
♦ Short switching times and high slew rates
♦ Low static power dissipation
♦ Dynamic power dissipation reduced with iC-xSwitch
♦ Schmitt trigger inputs with pull-down resistors, TTL and CMOS
compatible; voltage-proof up to 40 V
PACKAGES
♦ Thermal shutdown with hysteresis
♦ Error message trigger input TNER
♦ Open-drain error output NER, active low with excessive chip
temperature and undervoltage at VCC or VB
♦ Option: Extended temperature range from -40 to 125 °C
QFN28 5 x 5 mm²
BLOCK DIAGRAM
+5V
+24V
VCC
ERROR DETECTION
NER
error
output
MODE
TNER
ENA
trigger error
input
PLC
1
UNDERVOLTAGE &
OVERTEMPERATURE
enable /
tristate
&
VB1
A1
vert. 8V/div. hor. 2µs/div
E1
1
0
A2
VB2
A3
E2
E3
1
0
A4
VB3
A5
E4
E5
1
0
A6
E6
LINE 100 m
DIFF
NXS
differential /
single ended
1µF
1µF
CX1
CX6
iC-HX
normal /
x-Switch
mode
iC-xSWITCH
CONTROL
1
0
GND1
GND2
GND3 GND4
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http://www.ichaus.com