LM5104M National Semiconductor, LM5104M Datasheet

LM5104M

Manufacturer Part Number

LM5104M

Description

MOSFET Driver IC

Manufacturer

National Semiconductor

Datasheets

1.LM5104M.pdf (12 pages)

2.LM5104M.pdf (12 pages)

3.LM5104M.pdf (12 pages)

Specifications of LM5104M

Driver Case Style

NSOIC

No. Of Pins

Peak Reflow Compatible (260 C)

Leaded Process Compatible

Package / Case

8-NSOIC

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM5104M

Manufacturer:

NS/国半

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM5104M/NOPB

Manufacturer:

NS/国半

Quantity:

20 000

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LM5104

High Voltage Half-Bridge Gate Driver with Adaptive

Delay

General Description

The LM5104 High Voltage Gate Driver is designed to drive

both the high side and the low side N-Channel MOSFETs in

a synchronous buck configuration. The floating high-side

driver is capable of working with supply voltages up to 100V.

The high side and low side gate drivers are controlled from a

single input. Each change in state is controlled in an adap-

tive manner to prevent shoot-through issues. In addition to

the adaptive transition timing, an additional delay time can

be added, proportional to an external setting resistor. An

integrated high voltage diode is provided to charge 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 avail-

able in the standard SOIC-8 pin and the LLP-10 pin pack-

ages.

Features

n Drives both a high side and low side N-channel

Simplified Block Diagram

MOSFET

DS200890

FIGURE 1.

n Adaptive rising and falling edges with programmable

n Single input control

n Bootstrap supply voltage range up to 118V DC

n Fast turn-off propagation delay (25 ns typical)

n Drives 1000 pF loads with 15 ns rise and fall times

n Supply rail under-voltage lockout

Typical Applications

n Current Fed Push-Pull Power Converters

n High Voltage Buck Regulators

n Active Clamp Forward Power Converters

n Half and Full Bridge Converters

Package

n SOIC-8

n LLP-10 (4 mm x 4 mm)

additional delay

20089003

February 2005

www.national.com

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