The MAX16823 three-channel LED driver operates from a
5.5V to 40V input voltage range and delivers up to 70mA
per channel to one or more strings of high-brightness
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. Wave-shaping 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 components 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 4mA 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.
Key Features
Applications/Uses
5.5V to 40V Operating Range
Adjustable Constant Output Current (5mA to 70mA 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)
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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