MAX16823 Datasheet | Maxim Integrated

Description The MAX16823 three-channel LED driver operates from a 5.5V to 40V input voltage range and delivers up to 100m A per channel to one or more strings of highbrightness LEDs (HB LEDs). Each channel’s current is programmable using an external current-sense resistor in series with the LEDs. Three DIM inputs allow a wide range of independent pulsed dimming in addition to providing the on and off control of the outputs. Waveshaping circuitry reduces EMI while providing fast turn-on and turn-off times. The MAX16823 is well suited for automotive applications requiring a high-voltage input and is able to withstand load-dump events up to 45V. On-board pass elements minimize external ponents while providing ±5% LED current accuracy. Additional features include an active-high, open-drain LEDGOOD output for open LED detection, a +3.4V (±5%) regulated output with 4m A output current capability, short-circuit and thermal protections. The MAX16823 is available in thermally enhanced 5mm x 5mm, 16-pin TQFN-EP and 16- pin TSSOP-EP packages and is specified over the -40°C to +125°C automotive temperature range. Applications - - Automotive Exterior: Rear bination Lights (RCLs), CHMSL - - Automotive Interior: RGB Ambient Lighting, Cluster Lighting, and LCD Backlighting - - Emergency Vehicle Warning Lights - - Navigation and Marine Indicators - - Architectural and Industrial Lighting Features - - 5.5V to 40V Operating Range - - Adjustable Constant Output Current (5m A to 100m A and Up to 2A with External BJT) - - ±5% Output Current Accuracy - - Open LED Detection - - Three Independent High-Voltage DIM Inputs - - Three Integrated Pass Elements with Low Dropout Voltage (0.7V max) - - Undervoltage Lockout - - Output Short-Circuit Protection - - 3.4V Voltage Regulator with 4m A Capability - - Accurate, Low 203m V Current Sense - - Overtemperature Shutdown - - -40°C to +125°C Operating Temperature Range Ordering Information appears at end of data sheet. Typical Operating Circuit IN CIN IN OUT1...