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LM25101B Datasheet Preview

LM25101B Datasheet

Half-Bridge Gate Drivers

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LM25101
SNVS859C – JULY 2012 – REVISED SEPTEMBER 2016
LM25101 3-A, 2-A, and 1-A 80-V Half-Bridge Gate Drivers
1 Features
1 Independent High and Low Driver Logic Inputs
• Bootstrap Supply Voltage up to 100-V DC
• Drives Both a High-Side and Low-Side N-Channel
MOSFETs
• 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 and HIP2101
2 Applications
• Motor-Controlled Drivers
• Half and Full Bridge Power Converters
• Synchronous Buck Converters
• Two Switch Forward Power Converters
• Forward With Active Clamp Converters
• 48-V Server Power
• Solar DC-DC and DC-AC Converters
3 Description
The LM25101 high-voltage gate driver is designed to
drive both the high-side and the low-side N-Channel
MOSFETs in a synchronous buck or a half-bridge
configuration. The A version provides 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 TTL input thresholds. 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 8-pin
SOIC, 8-pin SO-PowerPAD, 8-pin WSON, 10-pin
WSON, and 8-pin MSOP PowerPAD packages.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
MSOP PowerPAD (8) 3 mm × 3 mm
WSON (8)
4 mm × 4 mm
LM25101
WSON (10)
4 mm × 4 mm
SO PowerPAD (8)
3.9 mm × 4.89 mm
SOIC (8)
3.91 mm × 4.9 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Application Diagram
VCC
Optional external
fast recovery diode
RBOOT DBOOT
VIN
Anti-Parallel Diode
(Optional)
VDD
PWM
Controller
OUT1
OUT2
HB
VDD
HO
RGATE
CBOOT
0.1µF
HI
HS
LM25101
T1
LI
RGATE
LO
1.0µF
VSS
Copyright © 2016, Texas Instruments Incorporated
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

LM25101B Datasheet Preview

LM25101B Datasheet

Half-Bridge Gate Drivers

No Preview Available !

LM25101
SNVS859C – JULY 2012 – REVISED SEPTEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Options....................................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 6
7.6 Switching Characteristics .......................................... 7
7.7 Typical Characteristics .............................................. 8
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 12
8.4 Device Functional Modes........................................ 13
9 Application and Implementation ........................ 14
9.1 Application Information............................................ 14
9.2 Typical Application .................................................. 14
10 Power Supply Recommendations ..................... 16
11 Layout................................................................... 17
11.1 Layout Guidelines ................................................. 17
11.2 Layout Example .................................................... 18
12 Device and Documentation Support ................. 19
12.1 Receiving Notification of Documentation Updates 19
12.2 Community Resources.......................................... 19
12.3 Trademarks ........................................................... 19
12.4 Electrostatic Discharge Caution ............................ 19
12.5 Glossary ................................................................ 19
13 Mechanical, Packaging, and Orderable
Information ........................................................... 19
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (March 2013) to Revision C
Page
• Added ESD Ratings 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
• Added Thermal Information table ........................................................................................................................................... 5
Changes from Original (March 2013) to Revision A
Page
• Changed layout of National Semiconductor Data Sheet to TI format .................................................................................... 1
2
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Product Folder Links: LM25101
Copyright © 2012–2016, Texas Instruments Incorporated


Part Number LM25101B
Description Half-Bridge Gate Drivers
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