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TDF1778 Datasheet

  • TDF1778

  • DUAL 2-A SOURCE DRIVER

  • 10頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDF1778
DUAL 2-A SOURCE DRIVER
.
.
.
.
.
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 V
CC
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 out-
put is protected against short-circuits. If internal dis-
sipation becomes too high, drivers will shut down to
prevent excessive heating. An 鈥滱LARM鈥?output is
provided to indicate the action of the thermal protec-
tion. To reactivate the power outputs, the reset input
must be forced to low state.
鈥漇ENSE鈥?information of both power outputs are
ORed together and then processed internally.
A 鈥漇TROBE鈥?input is also provided to offer the pos-
sibility of disabling the power outputs.
PIN CONNECTION
MULTIWATT11
ORDERING NUMBER :
TDF1778SP
1
2
3
4
5
6
7
8
9
10
11
- Output 1
- VCC
- Output 2
- N.C.
- Strobe
- Ground
- Input 2
- Sense output
- Alarm output
- Reset input
- Input 1
April 1993
1/10

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