Datasheet

LO
UVLO
HO
DRIVER
UVLO
LEVEL
SHIFT
HB
HS
DRIVER
VDD
VSS
HI
LI
LM5100A, LM5100B, LM5100C, LM5101A, LM5101B, LM5101C
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SNOSAW2P SEPTEMBER 2006REVISED MARCH 2013
LM5100A/B/C
LM5101A/B/C 3A, 2A and 1A High Voltage High-Side and Low-Side Gate Drivers
Check for Samples: LM5100A, LM5100B, LM5100C, LM5101A, LM5101B, LM5101C
1
FEATURES
DESCRIPTION
The LM5100A/B/C and LM5101A/B/C High Voltage
2
Drives Both a High-side and Low-side N-
Gate Drivers are designed to drive both the high-side
Channel MOSFETs
and the low-side N-Channel MOSFETs in a
Independent High and Low Driver Logic Inputs
synchronous buck or a half-bridge configuration. The
Bootstrap Supply Voltage up to 118V DC
floating high-side driver is capable of operating with
supply voltages up to 100V. The “A” versions provide
Fast Propagation Times (25 ns Typical)
a full 3A of gate drive while the “B” and “C” versions
Drives 1000 pF Load with 8 ns Rise and Fall
provide 2A and 1A respectively. The outputs are
Times
independently controlled with CMOS input thresholds
Excellent Propagation Delay Matching (3 ns
(LM5100A/B/C) or TTL input thresholds
(LM5101A/B/C). An integrated high voltage diode is
typical)
provided to charge the high-side gate drive bootstrap
Supply Rail Under-voltage Lockout
capacitor. A robust level shifter operates at high
Low Power Consumption
speed while consuming low power and providing
Pin Compatible with HIP2100/HIP2101 clean level transitions from the control logic to the
high-side gate driver. Under-voltage lockout is
provided on both the low-side and the high-side
TYPICAL APPLICATIONS
power rails. These devices are available in the
Current Fed Push-pull Converters
standard SOIC-8 pin, SO PowerPad-8 pin and the
Half and Full Bridge Power Converters
WSON-10 pin packages. The LM5100C and
LM5101C are also available in MSOP-PowerPad-8
Synchronous Buck Converters
package. The LM5101A is also available in WSON-8
Two Switch Forward Power Converters
pin package.
Forward with Active Clamp Converters
Package
SOIC-8
SO PowerPad-8
WSON-8 (4 mm x 4 mm)
WSON-10 (4 mm x 4 mm)
MSOP-PowerPad-8
Simplified Block Diagram
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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