IC-VX Datasheet, PDF (2/11 Pages) IC-Haus GmbH – 3-CHANNEL DIFFERENTIAL LINE DRIVER

iC-VX
3-CHANNEL DIFFERENTIAL LINE DRIVER
Rev C1, Page 2/11
DESCRIPTION
The device iC-VX is a monolithic, 3-channel line driver with complementary outputs for 24V applications.
The Schmitt trigger inputs contain pull-up current sources and run on separate operating voltages. Their
reference potential can be adjusted in the range of the output stage supply voltage to adapt the input threshold
voltage for various applications.
The guaranteed driver current can be set to 30mA (PROG pin open) or 100mA (PROG pin at VSUB). At low
load the drivers are TTL-compatible due to reduced saturation voltages. The output stages are current-limited
and, due to the shutdown at overtemperature, they are also protected against thermal destruction. Due to the
hysteresis of the overtemperature shutdown, the driver outputs switch on and off as a function of the iC power
loss until the overload ceases.
For 30mA driver current the short-circuit strength is guaranteed directly by the iC. For 100mA driver current
in 24V applications this is guaranteed by 30S series resistors.
Free-wheeling diodes at the outputs protect the iC against echoes of mismatched lines. The inputs and
outputs of the channels have diodes for protection against destruction by ESD.
PACKAGES SO16W, TSSOP20 to JEDEC Standard
PIN CONFIGURATION SO16W
(top view)
PIN FUNCTIONS
Name Function
PIN CONFIGURATION TSSOP20tp 4.4mm
(top view)
1
n.c.
2
E1
3
E2
4
VCC
5
VEE
6
PROG
7
VT
8
E3
9
VB2
10
n.c.
20
n.c.
19
VB
18
A1
17
NA1
16
A2
15
VSUB
14
NA2
13
A3
12
NA3
11
n.c.
E1
E2
VCC
VEE
PROG
VT
E3
VB2
NA3
A3
NA2
VSUB
A2
NA1
A1
VB1
Input Channel 1
Input Channel 2
Inputs Supply Voltage (+5V)
Reference Voltage for Inputs (0V)
Programming Input for Driver Current
(open 30mA, PROG to VSUB 100mA)
+4.5..+30V Bias Supply Voltage
Input Channel 3
+4.5..+30V Drivers Supply Voltage
Inverting Output Channel 3
Output Channel 3
Inverting Output Channel 2
Ground, Substrate
Output Channel 2
Inverting Output Channel 1
Output Channel 1
+4.5..+30V Drivers Supply Voltage
Pins VB1 and VB2 must both be connected when
the 100mA driver current is set.
To enhance heat removal, the TSSOP20 package
offers a large area pad to be soldered (a connection
is only permitted to VSUB).