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PDF TDF1778 Data sheet ( Hoja de datos )
| Número de pieza | TDF1778 | |
| Descripción | DUAL 2-A SOURCE DRIVER | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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TDF1778
. 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 out-
put is protected against short-circuits. If internal dis-
sipation becomes too high, drivers will shut down to
prevent excessive heating. An ”ALARM” 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.
”SENSE” information of both power outputs are
ORed together and then processed internally.
A ”STROBE” input is also provided to offer the pos-
sibility of disabling the power outputs.
PIN CONNECTION
DUAL 2-A SOURCE DRIVER
MULTIWATT11
ORDERING NUMBER : TDF1778SP
1 - Output 1
2 - VCC
3 - Output 2
4 - N.C.
5 - Strobe
6 - Ground
7 - Input 2
8 - Sense output
9 - Alarm output
10 - Reset input
11 - Input 1
April 1993
1/10
1 page  
OPEN LOAD DETECTION
TDF1778
Open load detection is possible during the hachured aeras.
SHORT CIRCUIT CONDITIONS WAVEFORMS WITH AUTOMATIC RESET/RESET = 0
5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TDF1778.PDF ] | |
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