UNITRODE UC1711, UC3711 Technical data
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Dual Ultra High-Speed FET Driver
UC1711
UC3711
FEATURES
• 25ns Rise and Fall into 1000pF
• 15ns Propagation Delay
• 1.5A Source or Sink Output Drive
• Operation with 5V to 35V Supply
• High-Speed Schottky NPN Process
• 8-PIN MINIDIP Package
CONNECTION DIAGRAM
DIL-8 (Top View)
J or N Package
BLOCK DIAGRAM
7.5V REG 6
2
A
IN
4
B
IN
2.5k
3k
3k2.5k
V
CC
7AOut
BOut
5
DESCRIPTION
The UC1711 family of FET drivers are made with an
all-NPN Schottky process in order to optimize switching
speed, temperature stability, and radiation resistance.
The cost for these benefits is a quiescent supply current
which varies with both output state and supply voltage.
For lower power requirements, refer to the the UC1709
family which is both pin compatible with, and functionally
equivalent to the UC1711.
These devices implement inverting logic with TTL compatible inputs, and output stages which will either source,
or sink in excess of 1.5A of load current with minimal
cross-conduction charge. Due to their monolithic construction, the channels are well matched and can be paralleled for doubled output current capability.
ORDERING INFORMATION
TEMPERATURE RANGE PACKAGE
UC1711J –55°C to +125°C Ceramic DIP
UC3711J 0°C to +70°C Ceramic DIP
UC3711N 0°C to +70°C Plastic DIP
Gnd
3
UDG-99078
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage, VCC. . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Output Current (Source or Sink)
Steady State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 500mA
Peak Transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1.5A
Maximum Forced Voltage . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
Maximum Forced Current . . . . . . . . . . . . . . . . . . . . . . . ± 10mA
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W
Operating Junction Temperature . . . . . . . . . . –55°C to +150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Note 1: Unless otherwise indicated, voltages are reference to
ground and currents are positive into, negative out of, the specified terminals. All reliability information for this device has been
gathered at an ambient air temperature of 125°C, and a supply
voltage of 25V.
Note 2: Consult Unitrode databook for information regarding
thermal specifications and limitations of packages.
03/99
UC1711
UC3711
ELECTRICAL CHARACTERISTICS:
Unless otherwise stated, VCC= 15V. TA=TJ.
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Supply
Supply Current (Note 3) Both inputs = 0V; VCC= 15V 11 15 mA
Both inputs = 5V; V
Both inputs = 0V; V
Both inputs = 5V; V
CC= 15V
CC= 35V
CC= 35V
20 27 mA
15 20 mA
41 56 mA
Logic Inputs
Logic 0 Input Voltage 0.8 V
Logic 1 Input Voltage 2.2 V
Input Current V
= 0V -5.0 -2.7 mA
IN
= 5V 0.5 2.0 mA
V
IN
Output Stages
Output High Level I
Output Low Level I
SOURCE
I
SOURCE
SINK
I
SINK
= 20mA, below V
= 200mA, below V
CC
CC
1.5 2.0 V
2.0 3.0 V
= 20mA .25 0.4 V
= 200mA 0.4 1.0 V
Switching Characteristics (Note 4)
Rise Time Delay, TPLH C
Fall Time Delay, TPHL C
Rise Time, TLH C
Fall Time, THL C
= 0 10 40 ns
LOAD
= 1000pF, (Note 5) 15 50 ns
C
LOAD
= 2200pF 20 55 ns
C
LOAD
= 0 3 20 ns
LOAD
= 1000pf, (Note 5) 5 20 ns
C
LOAD
= 2200pF 5 20 ns
C
LOAD
= 0, (Note 5) 12 25 ns
LOAD
= 1000pF, (Note 5) 25 40 ns
C
LOAD
= 2200pF 40 55 ns
C
LOAD
= 0, (Note 5) 7 15 ns
LOAD
= 1000pF, (Note 5) 25 40 ns
C
LOAD
= 2200pF 40 55 ns
C
LOAD
Total Supply Current Freq = 200kHz, 50% Duty-cycle
Both Channels Switching
= 0 17 23 mA
C
LOAD
= 2200pF 29 35 mA
C
LOAD
Note 3: Supply currents at other input supply votages can be calculated by extrapolating the 15V and 35V supply currents. The impedance of the chip at the V
pin is linear for supply voltages from 8V to 35V, the approximate value of this impedance is 4.3k for
CC
both inputs low, 0.94k for both inputs high, and 1.54k for one input high and one low.
Note 4: Switching test conditions are, V
timing terms are defined as : TPHL Propagation delay 50% V
90% V
OUT
to 10% V
; TLH 10% V
OUT
Note 5: This specification not tested in production.Unless otherwise stated specifications hold for T
and T
UNITRODE CORPORATION
7 CONTINENTAL BLVD.• MERRIMACK, NH 03054
TEL. (603) 424-2410 FAX (603) 424-3460
= -55 to 125°C for the UC1711, VCC= 15V. TA= TJ.
A
= 15V, Input voltage waveform levels are 0V and 5V, with transition times of <3ns. The
OUT
CC
to 90% V
OUT
.
to 90% V
IN
; TPLH Propogation delay 50% VINto 10% V
OUT
= 0 to 70°C for the UC3711,
A
OUT
; THL
2
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