LM5109BMA/NOPB National Semiconductor, LM5109BMA/NOPB Datasheet

IC DVR HALF-BRIDGE 90V 1A 8-SOIC

LM5109BMA/NOPB

Manufacturer Part Number
LM5109BMA/NOPB
Description
IC DVR HALF-BRIDGE 90V 1A 8-SOIC
Manufacturer
National Semiconductor
Datasheets

Specifications of LM5109BMA/NOPB

Configuration
Half Bridge
Input Type
Non-Inverting
Delay Time
32ns
Current - Peak
1A
Number Of Configurations
1
Number Of Outputs
2
High Side Voltage - Max (bootstrap)
108V
Voltage - Supply
8 V ~ 14 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LM5109BMA
*LM5109BMA/NOPB
LM5109BMA
© 2007 National Semiconductor Corporation
LM5109B
High Voltage 1A Peak Half Bridge Gate Driver
General Description
The LM5109B is a cost effective, high voltage gate driver de-
signed to drive both the high-side and the low-side N-Channel
MOSFETs in a synchronous buck or a half bridge configura-
tion. The floating high-side driver is capable of working with
rail voltages up to 90V. The outputs are independently con-
trolled with TTL compatible input thresholds. The robust level
shift technology operates at high speed while consuming low
power and providing clean level transitions from the control
input logic to the high-side gate driver. Under-voltage lockout
is provided on both the low-side and the high-side power rails.
The device is available in the SOIC-8 and the thermally en-
hanced LLP-8 packages.
Features
Simplified Block Diagram
Drives both a high-side and low-side N-Channel MOSFET
1A peak output current (1.0A sink / 1.0A source)
Independent TTL compatible inputs
Bootstrap supply voltage to 108V DC
202119
FIGURE 1.
Typical Applications
Package
Fast propagation times (30 ns typical)
Drives 1000 pF load with 15ns rise and fall times
Excellent propagation delay matching (2 ns typical)
Supply rail under-voltage lockout
Low power consumption
Pin compatible with ISL6700
Current Fed push-pull converters
Half and Full Bridge power converters
Solid state motor drives
Two switch forward power converters
SOIC-8
LLP-8 (4 mm x 4 mm)
20211901
February 2007
www.national.com

Related parts for LM5109BMA/NOPB

LM5109BMA/NOPB Summary of contents

Page 1

... Independent TTL compatible inputs ■ Bootstrap supply voltage to 108V DC Simplified Block Diagram © 2007 National Semiconductor Corporation ■ Fast propagation times (30 ns typical) ■ Drives 1000 pF load with 15ns rise and fall times ■ ...

Page 2

Connection Diagrams Ordering Information Ordering Number Package Type LM5109BMA SOIC-8 LM5109BMAX SOIC-8 LM5109BSD LLP-8 LM5109BSDX LLP-8 Pin Descriptions Pin # Name SO-8 LLP Positive gate drive supply High side control input 3 3 ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications (Note Electrical Characteristics Specifications in standard typeface are for T perature range. Unless otherwise specified, V Symbol Parameter SUPPLY CURRENTS I V Quiescent Current DD DD ...

Page 4

Switching Characteristics Specifications in standard typeface are for T perature range. Unless otherwise specified, V Symbol Parameter t Lower Turn-Off Propagation Delay (LI LPHL Falling to LO Falling) t Upper Turn-Off Propagation Delay (HI HPHL Falling to HO Falling) t ...

Page 5

Typical Performance Characteristics V Operating Current vs Frequency DD Operating Current vs Temperature Quiescent Current vs Voltage HB Operating Current vs Frequency 20211904 Quiescent Current vs Temperature 20211906 Propagation Delay vs Temperature 20211908 5 20211905 20211907 20211909 www.national.com ...

Page 6

LO and HO High Level Output Voltage vs Temperature Undervoltage Rising Thresholds vs Temperature Input Thresholds vs Temperature www.national.com LO and HO Low Level Output Voltage vs Temperature 20211910 Undervoltage Hysteresis vs Temperature 20211914 Input Thresholds vs Supply Voltage 20211916 ...

Page 7

Timing Diagram Layout Considerations Optimum performance of high and low-side gate drivers can- not be achieved without taking due considerations during circuit board layout. The following points are emphasized: 1. Low ESR / ESL capacitors must be connected close to ...

Page 8

Physical Dimensions   Controlling dimension is inch. Values are millimeters. Notes: Unless otherwise specified. 1. Standard lead finish to be 200 microinches/5.08 micrometers minimum lead/tin (solder) on copper. 2. Dimension does not include mold flash. Reference JEDEC ...

Page 9

... Notes: Unless otherwise specified. 1. For solder thickness and composition, see “Solder Information” in the packaging section of the National Semiconductor web page (www.national.com). 2. Maximum allowable metal burr on lead tips at the package edges is 76 microns JEDEC registration as of May 2003. LLP-8 Outline Drawing ...

Page 10

... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...

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