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UC1709, UC2709, UC3709 DUAL HIGH- SPEED FET DRIVER
SLUS196A -- NOVEMBER 1996 -- REVISED MARCH 2000
D D D D D D
1.5 Amp Source/Sink Drive Pin Compatible with 0026 Products 40 ns Rise and Fall into 1000pF Low Quiescent Current 5 V to 40 V Operation Thermal Protection
simplified schematic (only one driver shown)
VCC
description
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.
5 VOLT REGULATOR
THERMAL SENSE
6k INPUT A OR B
INPUT A OR B
5.6 V 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 Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Output Current (Source or Sink) Steady--State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mA Peak Transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A Capacitive Discharge Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mJ Digital Inputs} . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Power Dissipation at TA = 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W Power Dissipation at TC = 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . --55C to 125C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . --65C to 150C Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . . . . . . . . . . . . . 300C
J-Pkg . . . . . . . . . . . . . . . . . . . . . . . 40V . . . . . . . . . . . . . . . . . . . 500 mA . . . . . . . . . . . . . . . . . . . . . 1.0 A . . . . . . . . . . . . . . . . . . . . . . 15 mJ . . . . . . . . . . . . . . . . . . . . . . 5.5 V ....................... 1W ....................... 2W . . . . . . . . . . . . . --55C to 125C . . . . . . . . . . . . . --65C to 150C . . . . . . . . . . . . . . . . . . . . . 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.
Copyright a 2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
1
UC1709, UC2709, UC3709 DUAL HIGH- SPEED FET DRIVER
SLUS196A -- NOVEMBER 1996 -- REVISED MARCH 2000
PLCC-20, LCC-20 (TOP VIEW) Q, L PACKAGES
OUTPUT A
8 PIN DIL N OR J PACKAGE (TOP VIEW)
N/C INPUT A
SOIC-16 (TOP VIEW) DW PACKAGE
1 2 3 4
8 7 6 5
N/C OUTPUT A VCC OUTPUT B
INPUT A
N/C N/C N/C OUTPUT A N/C INPUT A N/C GROUND
1 2 3 4 5 6 7 8
16 VCC 15 N/C 14 N/C 13 OUTPUT B 12 N/C 11 INPUT B 10 N/C 9 N/C
N/C
N/C
N/C
GROUND INPUT B
N/C N/C VCC N/C N/C
3 N/C N/C GROUND N/C N/C 4 5 6 7 8 9 INPUT B
2
1
20 19 18 17 16 15 14
N/C -- No internal connection
10 11 12 13 N/C N/C OUTPUT B N/C
electrical characteristics over recommended operating free-air temperature range, TA = 55C to 125C for the UC1709, - C to 85C for the UC2709, and 0C to 70C for the UC3709; -40 VCC = 20 V, TA = TJ.
PARAMETER Supply current Logic 0 input voltage Logic 1 input voltage Input current Input leakage Output high saturation VCC --VO V Output low saturation VO Thermal shutdown VI = 0 VI = 5 V IO = --50 mA IO = --500 mA IO = 50 mA IO = 500 mA 2.2 --0.6 0.05 1.5 2.0 0.1 2.0 155 --1.0 0.1 2.0 2.5 0.4 2.5 TEST CONDITIONS Both outputs low Both outputs high MIN TYP 10 7 MAX 12 10 0.8 UNIT mA mA V V mA mA V V V V mA
typical switching characteristics, VCC = 20 V, TA = 25C, delays measured to 10% output change
PARAMETER Rise time delay 10% to 90% rise Fall time delay 10% to 90% fall VCC cross--conduction curent spike duration Output fall NOTE: Refer to UC1705 specifications for further information. Output rise TEST CONDITIONS OUTPUT CL = 0 nF 80 20 60 20 25 0 2.2 nF 80 40 80 40 UNITS ns ns ns ns ns ns
2
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
UC1709, UC2709, UC3709 DUAL HIGH- SPEED FET DRIVER
SLUS196A -- NOVEMBER 1996 -- REVISED MARCH 2000
APPLICATION INFORMATION
D1, D2: UC3611 Schottky Diodes
Figure 1. Power bipolar drive circuit.
D1, D2: UC3611 Schottky Diodes
Figure 2. Power MOSFET drive circuit.
Figure 3. Charge pump circuits.
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
3
UC1709, UC2709, UC3709 DUAL HIGH- SPEED FET DRIVER
SLUS196A -- NOVEMBER 1996 -- REVISED MARCH 2000
D1, D2: UC3611 Schottky Diodes
Figure 4. Transformer coupled push-pull MOSFET drive circuit.
D1, D2: UC3611 Schottky Diodes
Figure 5. Power MOSFET drive circuit using negative bias voltage and level shifting to ground referenced PWM
4
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
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
IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. Customers are responsible for their applications using TI components. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI's publication of information regarding any third party's products or services does not constitute TI's approval, warranty or endorsement thereof.
Copyright (c) 2000, Texas Instruments Incorporated

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