LM5102 Gate Driver Datasheet

LM5102 Datasheet, PDF, Equivalent


Part Number

LM5102

Description

High-Voltage Half-Bridge Gate Driver

Manufacture

etcTI

Total Page 24 Pages
Datasheet
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LM5102
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LM5102
SNVS268B – MAY 2004 – REVISED DECEMBER 2014
LM5102 High-Voltage Half-Bridge Gate Driver With Programmable Delay
1 Features
1 Drives Both a High-Side and Low-Side N-Channel
MOSFET
• Independently Programmable High and Low Side
Rising Edge Delay
• Bootstrap Supply Voltage Range up to 118 V dc
• Fast Turn-Off Propagation Delay (25 ns Typical)
• Drives 1000-pF Loads with 15-ns Rise and Fall
Times
• Supply Rail Undervoltage Lockout
• Low Power Consumption
• Timer Can Be Terminated Midway Through
Sequence
2 Applications
• Current Fed Push-Pull Power Converters
• Half and Full Bridge Power Converters
• Synchronous Buck Converters
• Two Switch Forward Power Converters
• Forward with Active Clamp Converters
3 Description
The LM5102 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 floating high-side driver is capable
of working with supply voltages up to 100 V. The
outputs are independently controlled. The rising edge
of each output can be independently delayed with a
programming resistor. 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 control logic to the high
side gate driver. Undervoltage lockout is provided on
both the low side and the high side power rails. This
device is available in the standard VSSOP 10 pin and
the WSON 10 pin packages.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM5102
VSSOP (10)
WSON (10)
3.00 mm × 3.00 mm
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Block Diagram
HB HV
UVLO
LEVEL
SHIFT
HI
Adjustable
rising
edge delay
RT1
VDD
UVLO
LI
Adjustable
rising
edge delay
RT2
VSS
DRIVER
HO
HS
DRIVER
LO
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.

LM5102
LM5102
SNVS268B – MAY 2004 – REVISED DECEMBER 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Switching Characteristics .......................................... 6
6.7 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 10
7.1 Overview ................................................................. 10
7.2 Functional Block Diagram ....................................... 10
7.3 Feature Description................................................. 10
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 11
8.1 Application Information............................................ 11
8.2 Typical Application ................................................. 11
9 Power Supply Recommendations...................... 13
9.1 Power Dissipation Considerations .......................... 13
10 Layout................................................................... 14
10.1 Layout Guidelines ................................................. 14
10.2 Layout Example .................................................... 15
11 Device and Documentation Support ................. 15
11.1 Trademarks ........................................................... 15
11.2 Electrostatic Discharge Caution ............................ 15
11.3 Glossary ................................................................ 15
12 Mechanical, Packaging, and Orderable
Information ........................................................... 15
4 Revision History
Changes from Revision A (March 2013) to Revision B
Page
• Added Handling Rating 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 Original (March 2013) to Revision A
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 11
2 Submit Documentation Feedback
Product Folder Links: LM5102
Copyright © 2004–2014, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM5102 SNVS268B – MAY 2004 – REVISED DECEMBER 2014 LM5102 High- Voltage Half-Bridge Gate Driver With Pr ogrammable Delay 1 Features •1 Drive s Both a High-Side and Low-Side N-Chann el MOSFET • Independently Programmabl e High and Low Side Rising Edge Delay Bootstrap Supply Voltage Range up to 118 V dc • Fast Turn-Off Propagation Delay (25 ns Typical) • Drives 1000- pF Loads with 15-ns Rise and Fall Times • Supply Rail Undervoltage Lockout Low Power Consumption • Timer Can Be Terminated Midway Through Sequence 2 Applications • Current Fed Push-Pull Power Converters • Half and Full Bri dge Power Converters • Synchronous Bu ck Converters • Two Switch Forward Po wer Converters • Forward with Active Clamp Converters 3 Description The LM5 102 high-voltage gate driver is designe d to drive both the high side and the l ow side N-Channel MOSFETs in a synchronous buck or a half bridge configuration. The floating .
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