LT4320 datasheet(5/14 Pages) LINER

5 / 14 page

LT4320/LT4320-1

4320fb

For more information www.linear.com/LT4320

pin Functions (DFN, PDIP/MSOP)

IN2 (Pin 1/Pin 1): Bridge Rectifier Input. IN2 connects to

the external NMOS transistors MTG2 source, MBG1 drain

and the power input.

TG2 (Pin 2/Pin 2): Topside Gate Driver Output. TG2 pin

drives MTG2 gate.

BG2 (Pin 3/Pin 5): Bottom-Side Gate Driver Output. BG2

pin drives MBG2 gate.

BG1 (Pin 4/Pin 6): Bottom-Side Gate Driver Output. BG1

pin drives MBG1 gate.

OUTN (Pin 5/Pin 7): OUTN is the rectified negative output

voltage, and connects to the sources of MBG1 and MBG2.

OUTP (Pin 6/Pin 9): OUTP is the rectified positive output

voltage that powers the LT4320 and connects to the drains

of MTG1 and MTG2.

TG1 (Pin 7/Pin 11): Topside Gate Driver Output. TG1 pin

drives MTG1 gate.

IN1 (Pin 8/Pin 12): Bridge Rectifier Input. IN1 connects

to the external NMOS transistors MTG1 source, MBG2

drain, and the power input.

NC (Pins 3, 4, 8, 10, MSOP Only): No Connections. Not

internally connected.

ExposedPad(Pin9/Pin13):ExposedPad,DFNandMSOP.

Must be connected to OUTN.

OUTP

LT4320 BD

MTG1

OUTN

BG1

IN1

LT4320

IN2

MBG1

BG2

MTG2

MBG2

TG1

–

TG2

CONTROL

block DiagraM

LT4320 Datasheet(PDF) 5 Page - Linear Technology

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