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LM5101A Datasheet Preview

LM5101A Datasheet

High-Side and Low-Side Gate Drivers

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LM5100A, LM5100B, LM5100C
LM5101A, LM5101B, LM5101C
SNOSAW2Q – SEPTEMBER 2006 – REVISED NOVEMBER 2015
LM5100A/B/C, LM5101A/B/C 3-A, 2-A, and 1-A High-Voltage, High-Side
and Low-Side Gate Drivers
1 Features
1 Drives Both a High-Side and Low-Side N-Channel
MOSFETs
• Independent High- and Low-Driver Logic Inputs
• Bootstrap Supply Voltage up to 118 V 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 Undervoltage Lockout
• Low Power Consumption
• Pin Compatible With HIP2100/HIP2101
2 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
3 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 100 V. The A versions provide
a full 3-A of gate drive, while the B and C versions
provide 2 A and 1 A, 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. Undervoltage 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.
Device Information(1)
PART NUMBER INPUT THRESHOLD
PEAK OUTPUT
CURRENT
LM5100A
CMOS
3A
LM5101A
TTL
3A
LM5100B
CMOS
2A
LM5101B
TTL
2A
LM5100C
CMOS
1A
LM5101C
TTL
1A
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Block Diagram
HB
UVLO
LEVEL
SHIFT
HI
UVLO
LI
DRIVER
HO
HS
VDD
DRIVER
LO
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LM5101A Datasheet Preview

LM5101A Datasheet

High-Side and Low-Side Gate Drivers

No Preview Available !

LM5100A, LM5100B, LM5100C
LM5101A, LM5101B, LM5101C
SNOSAW2Q – SEPTEMBER 2006 – REVISED NOVEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ..................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 6
7.5 Electrical Characteristics ......................................... 6
7.6 Switching Characteristics......................................... 8
7.7 Typical Characteristics ............................................ 10
8 Detailed Description ............................................ 14
8.1 Overview ................................................................. 14
8.2 Functional Block Diagram ....................................... 14
8.3 Feature Description................................................. 14
8.4 Device Functional Modes........................................ 15
9 Application and Implementation ........................ 16
9.1 Application Information............................................ 16
9.2 Typical Application ................................................. 16
10 Power Supply Recommendations ..................... 20
11 Layout................................................................... 21
11.1 Layout Guidelines ................................................. 21
11.2 Layout Example .................................................... 21
12 Device and Documentation Support ................. 22
12.1 Documentation Support ....................................... 22
12.2 Related Links ........................................................ 22
12.3 Community Resources.......................................... 22
12.4 Trademarks ........................................................... 22
12.5 Electrostatic Discharge Caution ............................ 22
12.6 Glossary ................................................................ 22
13 Mechanical, Packaging, and Orderable
Information ........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision P (March 2013) to Revision Q
Page
• Added ESD Ratings table, Thermal Information table, Feature Description section, Device Functional Modes,
Application and Implementation section, Power Supply Recommendations section, Layout section, Device and
Documentation Support section, and Mechanical, Packaging, and Orderable Information section. .................................... 1
Changes from Revision O (March 2013) to Revision P
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 19
2 Submit Documentation Feedback
Copyright © 2006–2015, Texas Instruments Incorporated
Product Folder Links: LM5100A LM5100B LM5100C LM5101A LM5101B LM5101C


Part Number LM5101A
Description High-Side and Low-Side Gate Drivers
Maker etcTI
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