iC-HD7
QUAD DIFFERENTIAL LINE DRIVER
Rev A5, Page 2/8
DESCRIPTION
iC-HD7 is a robust line driver for industrial 5 V and cessive temperature.
24 V applications with four complementary output
channels.
For bus applications the driver stages can be
switched to high impedance by a high at input NEN.
For signal lines with a characteristic impedance of
30 to 140 Ω the integrated line adapter, optimized The driver stage inputs have a Schmitt trigger char-
to 75 Ω, minimizes ringing effects which arise when acteristic and are compatible with CMOS and TTL
there is no line termination.
levels.
At a supply of 24 V the push-pull driver stages typi- For test purposes the temperature monitor can be
cally provide 200 mA to discharge the line and also deactivated by applying a voltage of greater than 12 V
have a low saturation voltage (of typically 200 mV to input NEN.
with a 40 mA low-side load). The outputs are current
limited and short-circuit-proof, shutting down with ex- The device contains internal ESD protection circuitry.
PACKAGES SO16N, TSSOP20
PIN CONFIGURATION SO16N
PIN FUNCTIONS
No. Name Function
1 I1
2 O1
Input 1
Driver Output 1
1
16
15
14
13
VB
I1
3 NO1 Inverted Driver Output 1
4 nc
5 NO2 Inverted Driver Output 2
6 O2
7 I2
8 GND Ground
2
I4
O1
3
Driver Output 2
Input 2
O4
NO1
4
NO4
NEN
NO3
O3
nc
9 I3
10 O3
Input 3
Driver Output 3
5
12
11
NO2
11 NO3 Inverted Driver Output 3
12 NEN Function Input
(low signal enables driver outputs)
13 NO4 Inverted Driver Output 4
14 O4
15 I4
6
O2
7
10
9
I2
Driver Output 4
Input 4
8
I3
GND
16 VB
+4.5 to +35 V Supply Voltage
ICHAUS [ IC-HAUS GMBH ]
