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
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
Ordering Information
Order Number
Package Type
Temp. Range
VAS1263ID08E
ESOP-8L
-40 °C to 85°C
I: Industry, -40~85℃ D: ESOP
08 : Pin Number E: ROHS
Pin Configuration
ESOP-8L
