LM5101 Gate Driver Datasheet

LM5101 Datasheet, PDF, Equivalent


Part Number

LM5101

Description

High Voltage High Side and Low Side Gate Driver

Manufacture

etcTI

Total Page 20 Pages
Datasheet
Download LM5101 Datasheet


LM5101
NRND
LM5100, LM5101
www.ti.com
SNVS267C – MAY 2004 – REVISED MARCH 2005
LM5100 /LM5101 High Voltage High Side and Low Side Gate Driver
Check for Samples: LM5100, LM5101
FEATURES
1
2 Drives Both a High Side and Low Side N-
Channel MOSFET
• Independent High and Low Driver Logic Inputs
(TTL for LM5101 or CMOS for LM5100)
• Bootstrap Supply Voltage Range up to 118V
DC
• Fast Propagation Times (25 ns Typical)
• Drives 1000 pF Load with 15 ns Rise and Fall
Times
• Excellent Propagation Delay Matching (3 ns
Typical)
• Supply Rail Under-voltage Lockouts
• 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
PACKAGE
• SOIC-8
• WSON-10 (4 mm x 4 mm)
DESCRIPTION
The LM5100/LM5101 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 outputs are independently controlled with
CMOS input thresholds (LM5100) or TTL input
thresholds (LM5101). 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. This device is available in the standard
SOIC-8 pin and the WSON-10 pin packages.
1
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.
All trademarks are the property of their respective owners.
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.
Copyright © 2004–2005, Texas Instruments Incorporated

LM5101
LM5100, LM5101
SNVS267C – MAY 2004 – REVISED MARCH 2005
Simplified Block Diagram
NRND
UVLO
LEVEL
SHIFT
HI
VDD
UVLO
LI
VSS
HB
DRIVER
HO
HS
DRIVER
LO
HV
www.ti.com
Connection Diagrams
VDD 1
HB 2
HO 3
HS 4
SOIC-8
8 LO
7 VSS
6 LI
5 HI
VDD
1
10 LO
HB 2
9 VSS
HO 3 WSON-10 8 LI
HS 4
7 HI
NC 5
6 NC
2 Submit Documentation Feedback
Copyright © 2004–2005, Texas Instruments Incorporated
Product Folder Links: LM5100 LM5101


Features NRND LM5100, LM5101 www.ti.com SNVS26 7C – MAY 2004 – REVISED MARCH 2005 LM5100 /LM5101 High Voltage High Side and Low Side Gate Driver Check for Samp les: LM5100, LM5101 FEATURES 1 •2 Dr ives Both a High Side and Low Side NCha nnel MOSFET • Independent High and Lo w Driver Logic Inputs (TTL for LM5101 o r CMOS for LM5100) • Bootstrap Supply Voltage Range up to 118V DC • Fast P ropagation Times (25 ns Typical) • Dr ives 1000 pF Load with 15 ns Rise and F all Times • Excellent Propagation Del ay Matching (3 ns Typical) • Supply R ail Under-voltage Lockouts • Low Powe r Consumption • Pin Compatible with H IP2100/HIP2101 TYPICAL APPLICATIONS • Current Fed Push-pull Converters • H alf and Full Bridge Power Converters Synchronous Buck Converters • Two S witch Forward Power Converters • Forw ard with Active Clamp Converters PACKA GE • SOIC-8 • WSON-10 (4 mm x 4 mm) DESCRIPTION The LM5100/LM5101 High Vol tage Gate Drivers are designed to drive both the high side and the low side N-Channel MOSFETs in a .
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