UC3709 Datasheet PDF - Unitrode
| Part Number | UC3709 | |
| Description | DUAL HIGH-SPEED FET DRIVER | |
| Manufacturers | Unitrode | |
| Logo |  |
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UC1709, UC2709, UC3709
DUAL HIGH- SPEED FET DRIVER
SLUS196A -- NOVEMBER 1996 -- REVISED MARCH 2000
D 1.5 Amp Source/Sink Drive
D Pin Compatible with 0026 Products
D 40 ns Rise and Fall into 1000pF
D Low Quiescent Current
D 5 V to 40 V Operation
D Thermal Protection
description
simplified schematic (only one driver shown)
VCC
5 VOLT
REGULATOR
THERMAL
SENSE
The UC3709 family of power drivers is an
effective low-cost solution to the problem of
providing fast turn-on and off for the
capacitive gates of power MOSFETs. Made
with a high-speed Schottky process, these
devices will provide up to 1.5 A of either
source or sink current from a totem--pole
output stage configured for minimal
cross-conduction current spike.
The UC3709 is pin compatible with the
MMH0026 or DS0026, and while the delay
times are longer, the supply current is much
less than these older devices.
INPUT
A OR B
6k
5.6 V
INPUT
A OR B
GND
UDG--00068
With inverting logic, these units feature complete TTL compatibility at the inputs with an output stage that can
swing over 30 V. This design also includes thermal shutdown protection.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†}
N--Pkg
J--Pkg
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V . . . . . . . . . . . . . . . . . . . . . . . 40V
Output Current (Source or Sink)
Steady--State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±500 mA . . . . . . . . . . . . . . . . . . . ±500 mA
Peak Transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1.5 A . . . . . . . . . . . . . . . . . . . . . ±1.0 A
Capacitive Discharge Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mJ . . . . . . . . . . . . . . . . . . . . . . 15 mJ
Digital Inputs} . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Power Dissipation at TA = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W . . . . . . . . . . . . . . . . . . . . . . . 1 W
Power Dissipation at TC = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W . . . . . . . . . . . . . . . . . . . . . . . 2 W
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . --55°C to 125°C . . . . . . . . . . . . . --55°C to 125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . --65°C to 150°C . . . . . . . . . . . . . --65°C to 150°C
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . . . . . . . . . . . . . 300°C . . . . . . . . . . . . . . . . . . . . . 300 °C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡ All currents are positive into and negative out of the specified terminals. Digital drive can exceed 5.5V if input is limited to 10A. Consult the
Packaging Section of the Databook for thermal limitations and considerations of the package.
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
·POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright ã 2000, Texas Instruments Incorporated
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UC1709, UC2709, UC3709
DUAL HIGH- SPEED FET DRIVER
SLUS196A -- NOVEMBER 1996 -- REVISED MARCH 2000
D1, D2: UC3611 Schottky Diodes
Figure 6. Transformer coupled MOSFET drive circuit.
·POST OFFICE BOX 655303 DALLAS, TEXAS 75265
5
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