ETC UC3709DW

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
simplified schematic (only one driver shown)
VCC
Thermal Protection
5 VOLT
REGULATOR
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.
THERMAL
SENSE
INPUT
A OR B
6k
INPUT
A OR B
5.6 V
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.
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 = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W
Power Dissipation at TC = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . --55°C to 125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . --65°C to 150°C
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . . . . . . . . . . . . . 300°C
J--Pkg
. . . . . . . . . . . . . . . . . . . . . . . 40V
. . . . . . . . . . . . . . . . . . . ±500 mA
. . . . . . . . . . . . . . . . . . . . . ±1.0 A
. . . . . . . . . . . . . . . . . . . . . . 15 mJ
. . . . . . . . . . . . . . . . . . . . . . 5.5 V
....................... 1W
....................... 2W
. . . . . . . . . . . . . --55°C to 125°C
. . . . . . . . . . . . . --65°C to 150°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.
Copyright ã 2000, Texas Instruments Incorporated
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.
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UC1709, UC2709, UC3709
DUAL HIGH- SPEED FET DRIVER
SLUS196A -- NOVEMBER 1996 -- REVISED MARCH 2000
N/C
N/C
OUTPUT A
3
2
1
20 19
N/C
INPUT A
PLCC--20, LCC--20 (TOP VIEW)
Q, L PACKAGES
N/C
4
18
N/C
N/C
5
17
N/C
8 PIN DIL N OR J PACKAGE
(TOP VIEW)
N/C
1
8
N/C
INPUT A
2
7
OUTPUT A
GROUND
3
6
VCC
INPUT B
4
5
OUTPUT B
N/C -- No internal connection
SOIC--16 (TOP VIEW)
DW PACKAGE
N/C
1
16 VCC
N/C
2
15 N/C
N/C
3
14 N/C
OUTPUT A
4
13 OUTPUT B
N/C
5
12 N/C
6
11 INPUT B
GROUND
6
16
VCC
INPUT A
N/C
7
15
N/C
N/C
7
10 N/C
N/C
8
14
N/C
GROUND
8
9 N/C
N/C
OUTPUT B
INPUT B
N/C
10 11 12 13
N/C
9
electrical characteristics over recommended operating free-air temperature range, TA = 55°°C to
125°°C for the UC1709, --40°°C to 85°°C for the UC2709, and 0°°C to 70°°C for the UC3709;
VCC = 20 V, TA = TJ.
PARAMETER
Supply current
TEST CONDITIONS
MIN
TYP
MAX
Both outputs low
10
Both outputs high
7
Logic 0 input voltage
Logic 1 input voltage
UNIT
12
mA
10
mA
0.8
V
2.2
V
Input current
VI = 0
--0.6
--1.0
mA
Input leakage
VI = 5 V
0.05
0.1
mA
IO = --50 mA
1.5
2.0
V
IO = --500 mA
2.0
2.5
V
IO = 50 mA
0.1
0.4
V
2.0
2.5
Output high saturation VCC --V
VO
Output low saturation VO
IO = 500 mA
Thermal shutdown
155
V
mA
typical switching characteristics, VCC = 20 V, TA = 25°°C, delays measured to 10% output change
PARAMETER
TEST CONDITIONS
OUTPUT CL =
0 nF
2.2 nF
UNITS
Rise time delay
80
80
ns
10% to 90% rise
20
40
ns
Fall time delay
60
80
ns
10% to 90% fall
20
40
ns
Output rise
VCC cross--conduction
curent spike duration
Output fall
NOTE: Refer to UC1705 specifications for further information.
2
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25
ns
0
ns
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.
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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
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· 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
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5