MAX16823 Maxim Integrated Products, MAX16823 Datasheet

MAX16823

Manufacturer Part Number

MAX16823

Description

3-Channel Linear High-Brightness LED Driver

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX16823.pdf (13 pages)

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Bonase Electronics (HK) Co., Limited

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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 (HBLEDs). 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 indepen-

dent 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 detec-

tion, 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.

19-0733; Rev 1; 3/07

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

High-Voltage, 3-Channel Linear High-Brightness

Automotive Exterior: Rear Combination Lights

Automotive Interior: RGB Ambient Lighting,

Emergency Vehicle Warning Lights

Navigation and Marine Indicators

Architectural and Industrial Lighting

(RCLs), CHMSL

Cluster Lighting, and LCD Backlighting

________________________________________________________________ Maxim Integrated Products

General Description

LED Driver with Open LED Detection

LGC

REG

Applications

LEDGOOD

REG

DIM1

DIM2

DIM3

LEDGOOD

LGC

REG

MAX16823

GND

OUT1

OUT2

OUT3

CS1

CS2

CS3

o 5.5V to 40V Operating Range

o Adjustable Constant Output Current

o ±5% Output Current Accuracy

o Open LED Detection

o Three Independent High-Voltage DIM Inputs

o Three Integrated Pass Elements with Low

o Undervoltage Lockout

o Output Short-Circuit Protection

o 3.4V Voltage Regulator with 4mA Capability

o Accurate, Low 203mV Current Sense

o Overtemperature Shutdown

o -40°C to +125°C Operating Temperature Range

+ Denotes a lead-free package.

* EP = Exposed pad.

Pin Configurations appear at end of data sheet.

MAX16823ATE+

MAX16823AUE+ -40°C to +125°C 16 TSSOP-EP* U16E-3

(5mA to 70mA and Up to 2A with External BJT)

Dropout Voltage (0.7V max)

CS1

PART

CS2

Typical Operating Circuit

-40°C to +125°C 16 TQFN-EP*

CS3

TEMP RANGE

Ordering Information

PIN-

PACKAGE

Features

T1655-3

CODE

PKG

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