TDF1778 データシートの表示（PDF） - STMicroelectronics

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TDF1778

DUAL 2-A SOURCE DRIVER

STMicroelectronics 

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

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