Features Internal high voltage (100V) start-up regulator Single resistor oscillator setting Synchronizable Precision reference output Adjustable soft-start Over-current protection Direct optocoupler interface 1.5A peak gate drivers Thermal Shutdown 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 voltage 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 alternating 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 propagation delays less than 100 ns and a 1MHz capable oscillator. Applications Intermediate DC/DC Bus Converter Telecommunication Power Converters Industrial Power Converters +42V Automotive Systems

Also Recommended LM5030▲ 100V Push-Pull PWM Controller LM5037▲ Dual-Mode PWM Controller With Alternating Outputs LM5041▲ 100V Current-Fed Push-Pull Controller (This Controller Also Is Used In Very High-Power Intermediate LM5100 100V Half-Bridge Driver Used As Chipset With LM5033 In Half And Full Bridge Converters

	Block Diagram *click for larger image
Typical Performance *click for larger image

Parameters / Values	LM5033	LM5030	LM5037	LM5041
PWM Mode	Voltage	Current	Feed-Forward Voltage Mode/Current Mode	Current
Topology	Push-Pull, Half-bridge, Full-bridge, IBC	Push-Pull, Full-bridge, Half-bridge	Push-Pull,Half-Bridge and Full-Bridge	Voltage-fed or Current-fed push-pull
Input Min Voltage	15 Volt	14 Volt	13 Volt	10 Volt
Input Max Voltage	90 Volt	90 Volt	100 Volt	100 Volt
Frequency Max	1000 kHz	1000 kHz	2000 kHz	1000 kHz
Efficiency (peak)	95.5 %	95 %	88 %	91 %
Adj Switch Frequency	Yes	Yes	Yes	Yes
Frequency Min	50 kHz	50 kHz	50 kHz	100 kHz
Sync Pin	Yes	Yes	Yes	Yes
Sync Type	Up	Up	Up	Up
UVLO	No	No	Yes	Yes
On/Off Pin	Yes	Yes	No	Yes
PowerGood / Error Flag	No	No	No	No
Current Limit Type	Hiccup	cycle-cycle, hiccup	Cycle-Cycle and Hiccup-Mode Restart	cycle-cycle, hiccup
Gate Drive	1.5 Amp	1.5 Amp	1.2 Amp	1.5 Amp
Output Range	Undefined	Undefined
Special Features	Intermediate bus converter controller	Slope compensation, direct opto-coupler interface	Soft-start, 5V Reference, UVLO with adjustable hysteresis	Programmable deadtime, overlap timing
Temperature Min	-40 deg C	-40 deg C	-40 deg C	-40 deg C
Temperature Max	125 deg C	125 deg C	125 deg C	125 deg C
Step-Down	Yes	Yes	Yes	Yes
Step-Up	Yes	Yes	Yes	Yes
Flyback	No	No	No	No
Inverting	Yes	Yes	Yes	Yes
RegType	Switching Controller	Switching Controller	Switching Controller	Switching Controller
Adjustable Output	Yes	Yes	Yes	Yes
Output Power	500 Watt			500 Watt
Switching Frequency	1000 kHz	1000 kHz		1000 kHz
Multiple Output Capability	Yes	Yes	Yes	Yes
PowerWise	Yes	Yes	Yes	Yes

Datasheets

Title		Size	Date	Other Language
	LM5033 100V Push-Pull Voltage Mode PWM Controller	706 Kbytes	26-May-05

Application Notes

Title		Size	Date	Other Language
	AN-1331: Application Note 1331 LM5033 Evaluation Board	507 Kbytes	27-May-04

Other Technical Documents

Title		Type	Date
	Analyzing Power Modules	Power Designer	2007-03-22
	Feedback Techniques for Crossing the Isolation Boundary	Power Designer	2007-03-22

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM5033MM/NOPB LM5033MM RoHS Status	MINI SOIC	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 1000 DIGI-KEY Worldwide 3308 FARNELL Europe and Asia 480 MOUSER Worldwide 760 RS COMPONENTS Worldwide 5	$1.00 each at 1K+ pcs	reel of 1000
LM5033MMX/NOPB LM5033MMX RoHS Status	MINI SOIC	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 3500 DIGI-KEY Worldwide 0 TAYLOR Americas 3500	$1.00 each at 1K+ pcs	reel of 3500
LM5033SD/NOPB LM5033SD RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 886 DIGI-KEY Worldwide 1459 RSL MICRO Asia Pacific 4000	$1.00 each at 1K+ pcs	reel of 1000
LM5033SDX/NOPB LM5033SDX RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$1.00 each at 1K+ pcs	reel of 4500

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM5033.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM5033 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM5033SD-EVAL	100V Push-Pull Voltage Mode PWM Controller	Full production	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$122.00 each	1
LM5033 100 V Push-Pull Voltage Mode PWM Controller Features: Internal high voltage (100 V) start-up regulator Single resistor oscillator setting Synchronizable Precision reference output Adjustable soft-start Over-current protection Direct optocoupler interface 1.5 A peak gate drivers Thermal shutdown Applications: Intermediate DC/DC Bus Converter Telecommunication Power Converters Industrial Power Converters +42 V Automotive Systems Contents: A fully assembled LM5033SD evaluation board LM5033 datasheet LM5033 evaluation board appnote

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM5033MM/NOPB LM5033MM	29.841 30.002	MINI SOIC	10	1 1	260 260	Detail	Download	N/A	ZXTT SCVB
LM5033MMX/NOPB LM5033MMX	29.841 30.002	MINI SOIC	10	1 1	260 260	Detail	Download	N/A	ZXTT SCVB
LM5033SD/NOPB LM5033SD	39.757 39.906	LLP	10	1 1	260 260	Detail	Download	N/A	NS UZXYTT 5033SD
LM5033SDX/NOPB LM5033SDX	39.757 39.906	LLP	10	1 1	260 260	Detail	Download	N/A	NS UZXYTT 5033SD

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM5033.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM5033 is located at RoHS Status.

CAD Symbols and Models Download LM5033 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM5033MM	ABCD150XV1	0	3868	0	0	2595000	2	736338335
LM5033MMX	ABCD150XV1	0	3868	0	0	2595000	2	736338335
LM5033SD	ABCD150XV1	0	3868	0	0	2595000	2	736338335
LM5033SDX	ABCD150XV1	0	3868	0	0	2595000	2	736338335

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM5033.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM5033 is located at RoHS Status.