首页>产品>LED驱动>专业级灯光>VAS1263——5A Buck LED Driver with Integrated MOSFET

VAS1263——5A Buck LED Driver with Integrated MOSFET

General Description
The VAS1263 is a step-down constant current high brightness LED (HBLED) driver with integrated power switch. VAS1263 provides a cost-effective solution for outdoor lighting, architectural, automotive headlight and other LED illumination applications. VAS1263 can operate from 5V to 40V and provide an externally adjustable output current up to 5A.
The device is well suited for applications requiring a wide input voltage range. The high-side current-sensing and an integrated current setting circuitry minimize the number of external components while delivering an LED current with ±5% accuracy. A novel control algorithm ensures excellent input-supply rejection and fast response during load transients and PWM dimming. The device operates up to 400 KHz switching frequency, thus allowing for small component size.
The device operates over the -40°C to +85°C temperature range and available in thermal enhanced SOP8 package

Application

  • Architectural, Industrial and Automotive Lighting
  • MR16 and other LED Lighting

Features

  • Typical 5% output current accurac
  • Up to 97% Efficiency
  • Integrated 40V/60mΩ N-channel Switch
  • Wide supply range from 5V to 40V
  • High-Side Current Sense
  • Compatible with Analog and PWM Dimming
  • 20kHz Maximum PWM Dimming Frequency
  • No Compensation Capacitor needed
  • ±5% LED Current Accuracy
  • Adjustable Constant LED Current
  • -40°C to 85°C Operating Temperature Range