iC-WE
3-CHANNEL 75
Ω
LINE DRIVER
Rev D1, Page 1/10
FEATURES
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3 current-limited and short-circuit-proof push-pull drivers
Built-in adaption to 75
Ω
characteristic impedance
High driver current of 300 mA at 24 V typ.
Low saturation voltage up to 30 mA load current
Short switching times and high slew rates by npn circuitry
Wide driver supply range VB = 4.5 V to 30 V
Internal free-wheeling diodes to VB and GND
Schmitt trigger inputs with integrated pull-up current sources
Inputs compatible to TTL and CMOS
Inverting and non-inverting driver mode
Bus capability due to Tri-State switching
Compatible to EIA standard RS-422
Thermal shutdown with hysteresis
Short-circuit-proof OC error output reports thermal shutdown
or undervoltage at VCC or VB
Driver disabled in case of fault
extended temperature range of up to 130 °C in
TSSOP20tp 4.4 mm package
APPLICATIONS
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24 V signal transfer
Line driver in PLC environment
PACKAGES
SO20
TSSOP20
thermal pad
SO16W
BLOCK DIAGRAM
2
VCC
10
TNER
VB
NER
3
12
MODE
ERROR
8
9
TRI
INV
LOW VOLTAGE
T.SHUTDOWN
SO20
1
E1
iC-WE
A1
11
CHAN 1
20
E2
A2
13
CHAN 2
19
E3
A3
18
CHAN 3
GND
4-7,14-17
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www.ichaus.com
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