Features Drives both a high side and low side N-Channel MOSFET Independent high and low driver logic inputs (TTL for LM5101 or CMOS for LM5100) Bootstrap supply voltage range up to 118V DC Fast propagation times (25 ns typical) Drives 1000 pF load with 15 ns rise and fall times Excellent propagation delay matching (3 ns typical) Supply rail under-voltage lockouts Low power consumption Pin compatible with HIP2100/HIP2101 Description The LM5100/LM5101 High Voltage Gate Drivers are 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 operating with supply voltages up to 100V. The outputs are independently controlled with CMOS input thresholds (LM5100) or TTL input thresholds (LM5101). 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. This device is available in the standard SOIC-8 pin and the LLP-10 pin packages. Applications Current Fed push-pull converters Half and Full Bridge power converters Synchronous buck converters Two switch forward power converters Forward with Active Clamp converters

Also Recommended LM5100B▲ Has CMOS-Type Threshold Inputs LM5101A▲ 3A Gate Drive Version LM5101C▲ 1A Gate Drive Version LM5102▲ Has Programmable Rising Edge Delay LM5104▲ Single PWM Input, Has Adaptive Deadtime With Programmable Delay

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

Datasheets

Title		Size	Date	Other Language
	LM5101 High Voltage High Side and Low Side Gate Driver	753 Kbytes	16-Mar-05

Application Notes

Title		Size	Date	Other Language
	AN-1299: Application Note 1299 LM5041 Evaluation Board	287 Kbytes	16-Mar-04
	AN-1923: Application Note 1923 Current Sense Demo Board User`s Guide (SOIC Package Parts)	3507 Kbytes	29-Apr-09	中文

Other Technical Documents

Title		Type	Date
	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
LM5101M/NOPB LM5101M RoHS Status	SOIC NARROW	Not recommended for new designs (as of 27-Jan-09) Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 4609 AVNET-EM Worldwide 269 DIGI-KEY Worldwide 529 MOUSER Worldwide 380 RS COMPONENTS Worldwide 30 TAYLOR Americas 4609	$1.20 each at 1K+ pcs	rail of 95
LM5101MX/NOPB RoHS Status	SOIC NARROW	Not recommended for new designs (as of 27-Jan-09) Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$1.20 each at 1K+ pcs	reel of 2500

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM5101SD	NONE	NATIONAL SEMICONDUCTOR	01 Dec 2009

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 LM5101.

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 LM5101 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM5101M/NOPB LM5101M	69.761 70.001	SOIC NARROW	8	1 1	260 235	Detail	Download	N/A	NSZXTT 5101 M
LM5101MX/NOPB	69.761	SOIC NARROW	8	1	260	Detail	Download	N/A	NSZXTT 5101 M

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 LM5101.

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 LM5101 is located at RoHS Status.

CAD Symbols and Models Download LM5101 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM5101M	ABCD150XV2	0	3601	0	0	1155496	4	327875145
LM5101MX	ABCD150XV2	0	3601	0	0	1155496	4	327875145

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 LM5101.

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 LM5101 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM5101SD	NONE	NATIONAL SEMICONDUCTOR	01 Dec 2009