TDE1747

TDF1747

INTERFACE CIRCUIT – RELAY AND LAMP – DRIVER

OPEN GROUND PROTECTION

HIGH OUTPUT CURRENT

ADJUSTABLE

SHORT-CIRCUIT

PROTEC-

TION TO GROUND

THERMAL PROTECTION WITH HYSTERE-

SIS TO AVOID THE INTERMEDIATE OUT-

PUT LEVELS

LARGE SUPPLY VOLTAGE RANGE : + 10 V

TO + 45 V

DESCRIPTION

The TDE/TDF1747 is a monolithic comparator de-

signed for high current and high voltage applica-

tions, specifically to drive lamps, relays, stepping

motors.

These device is essentially blow-out proof. Cur-

rent limiting is available to limit the peak output

current to safe values, the adjustment only re-

quires one external resistor. In addition, thermal

shut down is provided to keep the I.C. from over-

heating. If internals dissipation becomes too

great, the driver will shut down to prevent exces-

sive heating. TDE1747 has an open ground pro-

tection. The output is also protected from short-

circuits with the positive power supply.

The device operates over a wide range of supply

voltages from standard

± 15 V operational ampli-

fier supplies down to the single + 12 V or + 24

used for industrial electronic systems.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

November 1991

PIN CONNECTIONS (Top view)

Minidip (DP)

SO14 (FP)

ORDERING NUMBERS:

TDE1747DP

TDE1747FP

TDF1747DP

Minidip

SO14

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