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High Current FET Driver
UC1710
UC2710
UC3710
FEATURES
• Totem Pole Output with 6A
Source/Sink Drive
• 3ns Delay
• 20ns Rise and Fall Time into 2.2nF
• 8ns Rise and Fall Time into 30nF
• 4.7V to 18V Operation
• Inverting and Non-Inverting Outputs
• Under-Voltage Lockout with
Hysteresis
• Thermal Shutdown Protection
• MINIDIP and Power Packages
TRUTH TABLE
INV N.I. Out
HHL
LHH
HLL
LLL
OUT= INV and N.I.
OUT
= INV or N.I.
DESCRIPTION
The UC1710 family of FET drivers is made with a high-speed Schottky process to interface between low-level control functions and very high-power
switching devices-particularly power MOSFET’s. These devices accept
low-current digital inputs to activate a high-current, totem pole output which
can source or sink a minimum of 6A.
Supply voltages for both V
and VCcan independently range from 4.7V to
IN
18V. These devices also feature under-voltage lockout with hysteresis.
The UC1710 is packaged in an 8-pin hermetically sealed dual in-line pack-
age for –55°C to +125°C operation. The UC2710 and UC3710 are specified for a temperature range of –40°C to +85°C and 0°C to +70°C
respectively and are available in either an 8-pin plastic dual in-line or a
5-pin, TO-220 package. Surface mount devices are also available.
ORDERING INFORMATION
TEMPERATURE
RANGE
UC1710J –55°C to +125°C 8 pin CDIP
UC2710DW –40°C to +85°C 16 pin SOIC-wide
UC2710J 8 pin CDIP
UC2710N 8 pin PDIP
UC2710T 5 pin TO220
UC3710DW 0°C to +70°C 16 pin SOIC-wide
UC3710N 8 pin PDIP
UC3710T 5 pin TO220
PACKAGE
BLOCK DIAGRAM
5
V
IN
N.I. IN
INV IN
Logic G nd
8
7
LOGIC BIAS
INTERNALLY CONNECTED IN T PACKAG E
OUTPUT BIAS
TSD
UVLO1
INTERNALLY CO NNECTED IN T PACKAGE
4
V
C
3
Out
2PwrGnd
UDG-99079
05/99
ABSOLUTE MAXIMUM RATINGS
N-Package J-Package T-Package
Supply Voltage, Vin . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V . . . . . . . . . . . . . . 20V . . . . . . . . . . . . . . 20V
Collector Supply Voltage, VC. . . . . . . . . . . . . . . . . . . . 20V . . . . . . . . . . . . . . 20V . . . . . . . . . . . . . . 20V
Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V . . . . . . . . . . . . . . 18V . . . . . . . . . . . . . . 18V
Output Current (Source or Sink)
Steady-State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 500mA. . . . . . . . . . . .±500mA . . . . . . . . . . . . . ± 1A
Digital Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V-VIN . . . . . . . . –0.3V – VIN. . . . . . . . –0.3V – VIN
Power Dissipation at Ta=25°C . . . . . . . . . . . . . . . . . . . 1W. . . . . . . . . . . . . . . 1W. . . . . . . . . . . . . . . 3W
Power Dissipation at T (Case) = 25°C. . . . . . . . . . . . . . 2W . . . . . . . . . . . . . . . 2W . . . . . . . . . . . . . . 25W
Operating Junction Temperature. . . . . . . –55°C to +150°C . . . . –55°C to +150°C . . . . –55°C to +150°C
Storage Temperature . . . . . . . . . . . . . . . –65°C to +150°C . . . . –65°C to +150°C . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 seconds). . . . . . . 300°C . . . . . . . . . . . . 300°C . . . . . . . . . . . . 300°C
Note 1: All currents are positive into, negative out of the specified terminal.
Note 2: Consult Unitrode Integrated Circuits databook for information regarding thermal specifications
and limitations of packages.
CONNECTION DIAGRAMS
UC1710
UC2710
UC3710
DIL-8 MINIDIP (Top View)
J or N Package
SOIC-16 (Top View)
DW Package
5-Pin TO-220 (Top View)
T Package
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for V
TA= T
J.
PARAMETERS TEST CONDITIONS MIN TYP MAX UNITS
VINSupply Current VIN=18V, VC=18V, Output Low 26 35 mA
VIN=18V, VC=18V, Output High 21 30 mA
V
Supply Current VIN=18V, VC=18V, Output Low 1.5 5.0 mA
C
VIN=18V, VC=18V,Output High 5.0 8 mA
UVLO Threshold VINHigh to Low 3.8 4.1 4.4 V
VINLow to High 4.1 4.4 4.8 V
= VC= 15V, No load,
IN
2
UC1710
UC2710
UC3710
ELECTRICAL CHARACTERISTICS:
TA= T
J.
Unless otherwise stated, these specifications apply for VIN= VC= 15V, No load,
PARAMETERS TEST CONDITIONS MIN TYP MAX UNITS
UVLO Threshold Hysteresis 0.1 0.3 0.5 V
Digital Input Low Level 0.8 V
Digital Input High Level 2.0 V
Digital Input Current Digital Input = 0.0V –70 –4.0 µA
Output High Sat., V
– V
C
O
IO= –100mA 1.35 2.2 V
IO= –6A 3.2 4.5 V
Output Low Sat., V
O
IO= 100mA 0.25 0.6 V
IO= 6A 3.4 4.5 V
Thermal Shutdown 165 °C
From Inv., Input to Output (Note 3, 4):
Rise Time Delay CL = 0 35 70 ns
CL = 2.2nF 35 70 ns
CL = 30nF 35 70 ns
10% to 90% Rise CL = 0 20 40 ns
CL = 2.2nF 25 40 ns
CL = 30nF 85 150 ns
Fall Time Delay CL = 0 35 70 ns
CL = 2.2nF 35 70 ns
CL = 30nF 35 80 ns
90% to 10% Fall CL = 0 15 40 ns
CL = 2.2nF 20 40 ns
CL = 30nF 85 150 ns
From N.I. Input to Output (Note 3,4):
Rise Time Delay CL = 0 35 70 ns
CL = 2.2nF 35 70 ns
CL = 30nF 35 70 ns
10% to 90% Rise CL = 0 20 40 ns
CL = 2.2nF 25 40 ns
CL = 30nF 85 150 ns
Fall Time Delay CL = 0 35 70 ns
CL = 2.2nF 35 70 ns
CL = 30nF 35 80 ns
90% to 10% Fall CL = 0 15 40 ns
CL = 2.2nF 20 50 ns
CL = 30nF 85 150 ns
Total Supply Current at 200kHz Input
T
= 25°C (Note 5) CL = 0 30 40 mA
A
Switching Frequency
Note: 3. Delay measured from 50% input change to 10% output change.
Note: 4. Those parameters with CL = 30nF are not tested in production.
Note: 5. Inv. Input pulsed at 50% duty cycle with N.I. Input = 3V. or N.I. Input pulsed at 50% duty cycle with Inv. Input = 0V.
UNITRODE CORPORATION
7 CONTINENTALBLVD. • MERRIMACK, NH 03054
TEL. (603) 424-2410 FAX (603) 424-3460
3
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