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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
CMOS logic families, but can withstand input voltages as high as V
IN
. Each output can source or sink up to 3 A
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.
