LM5100AM_NOPB Datasheet, PDF (1/28 Pages) Texas Instruments – 3A, 2A and 1A High Voltage High-Side and Low-Side Gate Drivers

LM5100A, LM5100B, LM5100C, LM5101A, LM5101B, LM5101C
www.ti.com
SNOSAW2P – SEPTEMBER 2006 – REVISED 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
FEATURES
1
•2 Drives Both a High-side and Low-side N-
Channel MOSFETs
• Independent High and Low Driver Logic Inputs
• Bootstrap Supply Voltage up to 118V DC
• Fast Propagation Times (25 ns Typical)
• Drives 1000 pF Load with 8 ns Rise and Fall
Times
• Excellent Propagation Delay Matching (3 ns
typical)
• Supply Rail Under-voltage Lockout
• Low Power Consumption
• Pin Compatible with HIP2100/HIP2101
TYPICAL APPLICATIONS
• Current Fed Push-pull Converters
• Half and Full Bridge Power Converters
• Synchronous Buck Converters
• Two Switch Forward Power Converters
• Forward with Active Clamp Converters
DESCRIPTION
The LM5100A/B/C and LM5101A/B/C High Voltage
Gate Drivers are designed to drive both the high-side
and the low-side N-Channel MOSFETs in a
synchronous buck or a half-bridge configuration. The
floating high-side driver is capable of operating with
supply voltages up to 100V. The “A” versions provide
a full 3A of gate drive while the “B” and “C” versions
provide 2A and 1A respectively. The outputs are
independently controlled with CMOS input thresholds
(LM5100A/B/C) or TTL input thresholds
(LM5101A/B/C). An integrated high voltage diode is
provided to charge the high-side gate drive bootstrap
capacitor. A robust level shifter operates at high
speed while consuming low power and providing
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
power rails. These devices are available in the
standard SOIC-8 pin, SO PowerPad-8 pin and the
WSON-10 pin packages. The LM5100C and
LM5101C are also available in MSOP-PowerPad-8
package. The LM5101A is also available in WSON-8
pin package.
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
HB
UVLO
LEVEL
SHIFT
HI
UVLO
LI
HO
DRIVER
HS
VDD
DRIVER
LO
VSS
1
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2
PRODUCTION DATA information is current as of publication date.
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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