LM5033_05 Datasheet, PDF (1/17 Pages) National Semiconductor (TI) – 100V Push-Pull Voltage Mode PWM Controller

February 2005
LM5033
100V Push-Pull Voltage Mode PWM Controller
General Description
The LM5033 High Voltage PWM controller contains all the
features needed to implement Push-Pull, Half-Bridge, and
Full-Bridge topologies. Applications include closed loop volt-
age mode converters with a highly regulated output voltage,
or an open loop "DC transformer" such as an Intermediate
Bus Converter (IBC) with an efficiency >95%. Two alternat-
ing gate driver outputs with a guaranteed deadtime are
provided. The LM5033 includes a start-up regulator that
operates over a wide input range of 15V to 100V. Additional
features include: precision voltage reference output, current
limit detection, remote shutdown, softstart, sync capability
and thermal shutdown. This high speed IC has total propa-
gation delays less than 100 ns and a 1MHz capable oscilla-
tor.
Features
n Internal high voltage (100V) start-up regulator
n Single resistor oscillator setting
n Synchronizable
n Precision reference output
n Adjustable soft-start
n Over-current protection
n Direct optocoupler interface
n 1.5A peak gate drivers
n Thermal Shutdown
Applications
n Intermediate DC/DC Bus Converter
n Telecommunication Power Converters
n Industrial Power Converters
n +42V Automotive Systems
Package
n MSOP-10
n LLP-10
Connection Diagram
20035401
10-Lead MSOP, LLP
Ordering Information
Order Number
LM5033MM
LM5033MMX
LM5033SD
LM5033SDX
Package Type
MSOP-10
MSOP-10
LLP-10 (4 x 4 mm)
LLP-10 (4 x 4 mm)
NSC Package Drawing
MUB10A
MUB10A
SDC10A
SDC10A
Supplied As
1000 Units on Tape and Reel
3500 Units on Tape and Reel
1000 Units on Tape and Reel
4500 Units on Tape and Reel
© 2005 National Semiconductor Corporation DS200354
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