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 LM5100A▲ 3A Gate Drive Version LM5100B▲ 2A Gate Driver Version, Recommended As LM5100 Replacement LM5100C▲ 1A Gate Drive Version LM5102▲ Has Programmable Rising Edge Delay LM5104▲ Single PWM Input, Has Adaptive Deadtime With Programmable Delay LM5101▲ Has TTL-Type Threshold Inputs MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

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

Datasheet

Title		Size	Date	Other Language
	LM5100/LM5101 High Voltage High Side and Low Side Gate Driver	753 Kbytes	16-Mar-05

Featured Application Notes

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

More Application Notes

Title		Size	Date	Other Language
	AN-1317: Application Note 1317 Selection of External Bootstrap Diode for LM510X Devices	92 Kbytes	25-Feb-04	日本語 中文
	AN-1299: Application Note 1299 LM5041 Evaluation Board	287 Kbytes	16-Mar-04
	AN-1923: Application Note 1923 Current Sense Demo Board (SOIC) User`s Guide	3507 Kbytes	29-Apr-09	中文

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
LM5100M/NOPB RoHS	SOIC NARROW	Lifetime buy Lead Time: 6 weeks	Distributor Region Qty DIGIKEY Worldwide 0 FARNELL Europe and Asia 343	$1.20 each at 1K+ pcs	rail of 95
LM5100MX/NOPB RoHS	SOIC NARROW	Not recommended for new designs (as of 27-Jan-09) Lead Time: 12 weeks	Contact your distributor	$1.22 each at 1K+ pcs	reel of 2500

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM5100M	NONE	NATIONAL SEMICONDUCTOR	01 Dec 2009

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM5100M	ABCD150XV2	0	3601	0	0	1155496	4	327875145
LM5100MX	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.

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Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM5100M	NONE	NATIONAL SEMICONDUCTOR	01 Dec 2009