TDF1778 datasheet(1/10 Pages) STMICROELECTRONICS

Il numero della parte	TDF1778

Spiegazioni elettronici	DUAL 2-A SOURCE DRIVER

PDF	10 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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TDF1778

April 1993

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 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.

MULTIWATT11

ORDERING NUMBER : TDF1778SP

PIN CONNECTION

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

1/10

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