SM74104 Driver Datasheet

SM74104 Datasheet PDF, Equivalent


Part Number

SM74104

Description

High Voltage Half-Bridge Gate Driver

Manufacture

etcTI

Total Page 27 Pages
Datasheet
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SM74104
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SM74104
SNOSBA3D – JUNE 2011 – REVISED MAY 2015
SM74104 High Voltage Half-Bridge Gate Driver with Adaptive Delay
1 Features
1 Renewable Energy Grade
• Drives both a High Side and Low Side N-Channel
MOSFET
• Adaptive Rising and Falling Edges with
Programmable Additional Delay
• Single Input Control
• Bootstrap Supply Voltage Range up to 118V DC
• Fast Turn-Off Propagation Delay (25 ns Typical)
• Drives 1000 pF Loads with 15 ns Rise and Fall
Times
• Supply Rail Under-Voltage Lockout
2 Typical Applications
• Current Fed Push-Pull Power Converters
• High Voltage Buck Regulators
• Active Clamp Forward Power Converters
• Half and Full Bridge Converters
3 Description
The SM74104 High Voltage Gate Driver is designed
to drive both the high side and the low side N-
Channel MOSFETs in a synchronous buck
configuration. The floating high-side driver is capable
of working with supply voltages up to 100V. The high
side and low side gate drivers are controlled from a
single input. Each change in state is controlled in an
adaptive manner to prevent shoot-through issues. In
addition to the adaptive transition timing, an additional
delay time can be added, proportional to an external
setting 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 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SM74104
WSON (10)
SOIC (8)
4.0 mm x 4.0 mm
4.9 mm x 3.9 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(Optional external
fast recovery diode)
VCC
VIN
VDD
PWM
OUT1
CONTROLLER
OUT2
GND
VDD
HB
HO
IN HS
SM74104
LO
RT
VSS
RGATE
CBOOT
L
C
SM74104 Driving MOSFETs Connected in Synchronous Buck Configuration
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.

SM74104
SM74104
SNOSBA3D – JUNE 2011 – REVISED MAY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Typical Applications .............................................. 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
7 Absolute Maximum Ratings.................................. 4
8 ESD Ratings ........................................................... 4
9 Recommended Operating Conditions ................. 4
10 Thermal Information.............................................. 4
11 Electrical Characteristics ..................................... 5
12 Switching Characteristics .................................... 6
12.1 Typical Performance Characteristics ...................... 7
13 Detailed Description ........................................... 10
13.1 Overview ............................................................... 10
13.2 Functional Block Diagram ..................................... 10
13.3 Feature Description............................................... 10
13.4 Device Functional Modes...................................... 12
13.5 Power Dissipation Considerations ........................ 12
14 Application and Implementation........................ 14
14.1 Application Information.......................................... 14
14.2 Typical Application ............................................... 14
15 Power Supply Recommendations ..................... 16
16 Layout................................................................... 16
16.1 Layout Guidelines ................................................. 16
16.2 Layout Example .................................................... 16
17 Device and Documentation Support ................. 18
17.1 Trademarks ........................................................... 18
17.2 Electrostatic Discharge Caution ............................ 18
17.3 Glossary ................................................................ 18
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (April 2013) to Revision D
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 B (April 2013) to Revision C
Page
• Changed layout of National Data Sheet to TI format ............................................................................................................. 1
2 Submit Documentation Feedback
Product Folder Links: SM74104
Copyright © 2011–2015, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SM74104 SNOSBA3D – JUNE 20 11 – REVISED MAY 2015 SM74104 High Vo ltage Half-Bridge Gate Driver with Adap tive Delay 1 Features •1 Renewable E nergy Grade • Drives both a High Side and Low Side N-Channel MOSFET • Adap tive Rising and Falling Edges with Prog rammable Additional Delay • Single In put Control • Bootstrap Supply Voltag e Range up to 118V DC • Fast Turn-Off Propagation Delay (25 ns Typical) • Drives 1000 pF Loads with 15 ns Rise an d Fall Times • Supply Rail Under-Volt age Lockout 2 Typical Applications • Current Fed Push-Pull Power Converters • High Voltage Buck Regulators • Ac tive Clamp Forward Power Converters • Half and Full Bridge Converters 3 Des cription The SM74104 High Voltage Gate Driver is designed to drive both the hi gh side and the low side NChannel MOSFE Ts in a synchronous buck configuration. The floating high-side driver is capable of working with supply voltages up to 100V. The h.
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