Non-Synchronous Boost Controller, Automotive Grade

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Overview

The NCV8873 is an adjustable output non-synchronous boost controller which drives an external N-channel MOSFET. The device uses peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies charge to the gate driver. Protection features include internally-set soft-start, undervoltage lockout, cycle-by-cycle current limiting and thermal shutdown. Additional features include low quiescent current sleep mode and externally-synchronizable switching frequency.

  • LED Lighting, Backlighting, Headlamps
  • Start-Stop Systems
  • Boost, SEPIC (Non-Inverting Buck Boost)
  • Direct Gas Injection
  • Automotive Systems
  • Peak Current Mode Control with Internal Slope Compensation
  • 0.2 V 2% Reference Voltage for Constant Current Loads
  • Wide Input Voltage Range of 3.2 V to 45 V
  • Input Undervoltage Lockout
  • Internal Soft Start
  • Low Quiescent Current in Sleep Mode
  • Cycle by Cycle Current Limit Protection
  • Hiccup Mode Overcurrent Protection
  • Thermal Shutdown

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ECAD Models

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Case Outline

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Control Mode

VCC Min (V)

VCC Max (V)

fSW Typ (kHz)

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NCV887302D1R2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

Y

Step-Up/Step-Down/SEPIC

1

Current Mode

3.2

45

400

$0.69

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NCV887300D1R2G

Last Shipments

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Step-Up/Step-Down

1

Current Mode

3.2

45

1000

Price N/A

More Details

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