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FEATURES

DESCRIPTION

Enable

LogicGnd

5.6V

Reg

Thermal

Shutdown

Internal

Bias

Input A

Shutdown

InputB

Output A

PwrGndB

PwrGnd A

V

IN

OutputB

UC1708

UC2708

UC3708

SLUS171C – MARCH 1997 – REVISED SEPTEMBER 2007

www.ti.com

DUAL NON-INVERTING POWER DRIVER

• High-Speed, Power MOSFET Compatible

• 3.0A Peak Current Totem Pole Output

• Efficient High Frequency Operation

• 5 to 35V Operation

• Low Cross-Conduction Current Spike

• 25ns Rise and Fall Times

• Enable and Shutdown Functions

• 25ns Propagation Delays

• Wide Input Voltage Range

• Thermal Shutdown and Under-Voltage

• ESD Protection to 2kV

Protection

The UC1708 family of power drivers is made with a high-speed, high-voltage, Schottky process to interface

control functions and high-power switching devices – particularly power MOSFETs. Operating over a 5 V to 35 V

supply range, these devices contain two independent channels. The A and B inputs are compatible with TTL and

as long as power dissipation limits are not exceeded.

Although each output can be activated independently with its own inputs, they can be forced low in common

through the action of either a digital high signal at the Shutdown terminal or by forcing the Enable terminal low.

The Shutdown terminal will only force the outputs low, it will not effect the behavior of the rest of the device. The

Enable terminal effectively places the device in under-voltage lockout, reducing power consumption by as much

as 90%. During under-voltage and disable (Enable terminal forced low) conditions, the outputs are held in a

self-biasing, low-voltage, state.

The UC3708 and UC2708 are available in plastic 8-pin MINI DIP and 16-pin bat-wing DIP packages for

commercial operation over a 0

°C to 70°C temperature range and industrial temperature range of –25°C to 85°C

respectively. For operation over a –55

°C to 125°C temperature range, the UC1708 is available in hermetically

sealed 8-pin MINI CDIP, 16 pin CDIP and 20 pin CLCC packages. Surface mount devices are also available.

BLOCK DIAGRAM

NOTE: Shutdown feature is not available in J or N packages only.

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 1997–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.