Dual 12 V MOSFET Driver with Output Disable

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Overview

The ADP3120A is a dual, high voltage MOSFET driver optimized for driving two N-channel MOSFETs, the two switches in a nonisolated synchronous buck power converter. Each driver is capable of driving a 3000 pF load with a 45 ns propagation delay and a 25 ns transition time. One of the drivers can be bootstrapped and is designed to handle the high voltage slew rate associated with floating high-side gate drivers. The ADP3120A includes overlapping drive protection to prevent shoot-through current in the external MOSFETs.

  • Multiphase CPU supplies
  • Single-supply synchonous buck converters
  • Desktop computers
  • All in one synchronous buck converter
  • One PWM generates both drives
  • Anti cross-conduction protection circuitry
  • Bootstrapped high side driver
  • OD for disabling the driver outputs
  • Meets CPU VR requirement when used with Flex-Mode controller

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CAD Models

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Case Outline

MSL Type

MSL Temp (°C)

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ON Target

Power Switch

Number of Outputs

Topology

Isolation Type

Vin Max (V)

VCC Max (V)

Rise Time (ns)

Fall Time (ns)

Drive Source Current Typ (A)

Drive Sink Current Typ (A)

Turn On Prop. Delay Typ (ns)

Turn Off Prop. Delay Typ (ns)

Delay Matching

Reference Price

ADP3120AJCPZ-RL

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Active

CAD Model

Pb

A

H

P

DFN-8

1

260

REEL

3000

N

MOSFET

2

Half-Bridge

Junction Isolation

35

15

20

16

-

-

-

-

-

$0.2921

More Details

ADP3120AJRZ-RL

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

MOSFET

2

Half-Bridge

Junction Isolation

35

15

20

16

-

-

-

-

-

$0.2668

More Details

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