MAX16835ATE+T Maxim Integrated Products, MAX16835ATE+T Datasheet

MAX16835ATE+T

Manufacturer Part Number

MAX16835ATE+T

Description

IC LED DRIVR HIGH BRIGHT 16-TQFN

Manufacturer

Maxim Integrated Products

Type

HBLED Driverr

Datasheet

1.MAX16835ATE.pdf (8 pages)

Specifications of MAX16835ATE+T

Topology

Linear (LDO), PWM

Number Of Outputs

Internal Driver

Yes

Type - Primary

Automotive

Type - Secondary

High Brightness LED (HBLED)

Voltage - Supply

6.5 V ~ 40 V

Voltage - Output

Mounting Type

Surface Mount

Package / Case

16-TQFN Exposed Pad

Operating Temperature

-40°C ~ 125°C

Current - Output / Channel

350mA

Internal Switch(s)

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Frequency

Efficiency

Lead Free Status / Rohs Status

Details

Current page: 1 of 8
Download datasheet (151Kb)

The MAX16835 current regulator operates from a 6.5V

to 40V input voltage range and delivers up to a total of

350mA to one or more strings of high-brightness LEDs

(HB LEDs). The output current of the MAX16835 is

adjusted by using an external current-sense resistor in

series with the LEDs. An enable input allows wide-

range “pulsed” dimming. Wave-shaping circuitry

reduces EMI. The differential current-sense input

increases noise immunity. The MAX16835 is well suited

for applications requiring high-voltage input and is able

to withstand automotive load-dump events up to 40V.

An on-board pass element minimizes external compo-

nents while providing ±3.5% output current accuracy.

Additional features include a 5V regulated output and

short-circuit and thermal protection.

The MAX16835 is available in a thermally enhanced,

5mm x 5mm, 16-pin TQFN package and is specified

over the automotive -40°C to +125°C temperature range.

19-4028; Rev 1; 5/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

TOP VIEW

Automotive Interior: Map, Courtesy, and Cluster

Lighting

Automotive Exterior: Tail Lights and CHMSL

Warning Lights for Emergency Vehicles

Navigation and Marine Indicators

General Illumination

Signage, Gasoline Canopies, Beacons

N.C.

OUT

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Maxim Integrated Products

High-Voltage, 350mA, Adjustable Linear

General Description

MAX16835

Pin Configuration

TQFN

Applications

N.C.

High-Brightness LED Driver

o +6.5V to +40V Operating Range

o Adjustable LED Current (35mA to 350mA)

o ±3.5% Output Current Accuracy

o Integrated Pass Element with Low-Dropout

o Output Short-Circuit Protection

o +5V Regulated Output with 4mA Source

o Thermal Shutdown

o Differential LED Current Sense

o High-Voltage Enable Pin for Dimming Interface

o Low Shutdown Supply Current (35µA typ)

o Low 200mV Current-Sense Reference Reduces

o Wave-Shaped Edges Reduce Radiated EMI During

o Available in Small, Thermally Enhanced,

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

+ Denotes a lead-free package.

* EP = Exposed pad.

MAX16835ATE+

Voltage (0.55V typ)

Capability

Power Losses

PWM Dimming

5mm x 5mm, 16-Pin TQFN Package

PWM DIMMING

0.1μF

+6.5V TO +40V

PART

-40°C to +125°C

TEMP RANGE

MAX16835

Ordering Information

GND

Simplified Diagram

OUT

CS+

CS-

+5V REG

PIN-PACKAGE

16 TQFN-EP*

Features

0.1μF

LEDs

SENSE

Related parts for MAX16835ATE+T

MAX16835ATE+T Summary of contents

Page 1

... OUT TQFN Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. High-Brightness LED Driver o +6.5V to +40V Operating Range o Adjustable LED Current (35mA to 350mA) o ±3.5% Output Current Accuracy o Integrated Pass Element with Low-Dropout Voltage (0 ...

Page 2

High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +45V OUT GND..........................................-0. CS+, CS-, and V5 to GND ........................................-0.3V to +6V OUT Short Circuited to GND Duration ( ...

Page 3

High-Voltage, 350mA, Adjustable Linear ELECTRICAL CHARACTERISTICS (continued +12V 0.1µF to GND +125°C, unless otherwise noted. Typical values are at T PARAMETER SYMBOL THERMAL OVERLOAD Thermal-Shutdown Temperature Thermal-Shutdown Hysteresis +5V REGULATOR ...

Page 4

High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver ( +12V +25°C, unless otherwise noted DROPOUT VOLTAGE vs. TEMPERATURE 1.0 0.9 0.8 0 350mA LOAD 0.6 0.5 0.4 0.3 0.2 0.1 0 ...

Page 5

High-Voltage, 350mA, Adjustable Linear PIN NAME 1, 16 OUT Current-Regulated Output. Connect pin 1 to pin 16 Positive Input Supply. Bypass IN with a 0.1µF (min) capacitor to GND. Connect pin 2 to pin 3. 4–8, 13, ...

Page 6

High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver power series pass device (see the Functional Diagram ). The regulation point is factory set at (V 200mV ±3.5%. The regulated current is user defined by the value SENSE The ...

Page 7

High-Voltage, 350mA, Adjustable Linear Typical Operating Circuit OUT EN N.C. N.C. 1 OUT GND MAX16835 IN 3 CS- 4 N.C. CS+ N.C. N.C. N.C. N. ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products ...

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