Quality Standards and Environmental Certifications
×

High Power LED Drivers with Pre-Emptive Boost and Six Current Sinks

A80602, A80605

Allegro 24-contact QFN ES Package

The A80602/5 provides efficient and flexible multi-output LED driving with six integrated current sinks and patented Pre-Emptive Boost (PEB) control for ultra-high dimming ratios. The A80605 offers a modified programming range for PEB control, optimized for lower boost switching frequencies.

* Note: If you have issues logging into this feature you may need to enable 3rd party cookies in your browser settings A80602-5 ECAD Model Type Image
Download Datasheet
Navigate

Top Features

Packaging

  • Automotive AEC-Q100 qualified
  • Enhanced fault handling for ASIL B system compliance
  • Wide input voltage range of 4.5 to 40 V for start/stop, cold crank, and load dump requirements
  • Operate in Boost or SEPIC mode for flexible output
  • Gate driver for external NMOS to deliver higher output power
  • Six integrated LED current sinks, up to 140 mA each
  • Boost switching frequency synced externally or programmed from 200 kHz to 2.3 MHz
  • Programmable boost frequency dithering to reduce EMI
  • Advanced control allows minimum PWM on-time down to 0.3 μs, and avoids MLCC audible noises
  • LED contrast ratio: 15,000:1 at 200 Hz using PWM dimming alone, 150,000:1 when combining PWM and analog dimming
  • Excellent input voltage transient response even at lowest PWM duty cycle
  • Gate driver for optional PMOS input disconnect switch
  • Extensive fault protection features

Typical Applications

24-Pin 4 mm x 4 mm QFN with Wettable Flank

ES Package Documentation

× not found

Part Number Specifications and Availability

Documentation and Resources

Documentation

Filter Document Type:
All Types
All Types Technical Article
Documents Found: 32
Document Type Document Name
Technical Article
Pre-Emptive Boost Control Improves LED Driver Performance