TDF1778
®
DUAL 2-A SOURCE DRIVER
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OUTPUT CURRENT UP TO 2.5 A
WIDE RANGE OF SUPPLY VOLTAGES : + 8 to
+ 32 V
CAN WITHSTAND OVERVOLTAGES OF AS
HIGH AS 60 V BETWEEN VCC AND GROUND
INTERNAL ZENER DIODE PROVIDES FAST
SWITCHING OF INDUCTIVE LOADS
OUTPUT VOLTAGE CAN BE LOWER THAN
GROUND
DESCRIPTION
The TDF1778 is a dual source driver delivering high
output currents and capable to drive any type of
loads (Electrovalves, contactors, lamps).
This device is essentially blow-out proof, each output is protected against short-circuits. If internal dissipation becomes too high, drivers will shut down to
prevent excessive heating. An "ALARM" output is
provided to indicate the action of the thermal protection. To reactivate the power outputs, the reset input
must be forced to low state.
"SENSE" information of both power outputs are
ORed together and then processed internally.
A "STROBE" input is also provided to offer the possibility of disabling the power outputs.
MULTIWATT11
ORDERING NUMBER : TDF1778SP
PIN CONNECTION
1
2
3
4
5
6
7
8
9
10
11
September 2003
- Output 1
- VCC
- Output 2
- N.C.
- Strobe
- Ground
- Input 2
- Sense output
- Alarm output
- Reset input
- Input 1
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