MAX16828ATT Просмотр технического описания (PDF) - Maxim Integrated

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MAX16828ATT

High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming

Maxim Integrated 

MAX16815/MAX16828

High-Voltage, 100mA/200mA Adjustable Linear

High-Brightness LED Drivers with PWM Dimming

Pin Description

PIN

TDFN

SO

1

6

—

7

2

8

3

1

4

2

—

3

5

4

6

5

—

—

NAME

DIM

EN

OUT

IN

CS+

CS-

V5

GND

EP

FUNCTION

Pulsed Dimming Input. Drive DIM low to turn off output current (LED current). Drive DIM

high to turn on the output current (LED current). DIM is pulled high to VIN when left

unconnected

Enable Input. Drive EN high to enable the output. For the TDFN package, this input is not

accessible and always high

Current-Regulated Output

Positive Input Supply. Bypass IN with a 0.1µF (min) capacitor to GND

LED Current-Sense Amplifier Positive Input. For the SO package version, connect the

current-sense resistor between this pin and CS-; for the TDFN version, connect it between

this pin and ground.

LED Current-Sense Amplifier Negative Input. Connect to ground

+5V Regulated Output. Connect a 0.1µF (min) capacitor from V5 to GND

Ground

Exposed Pad. Connect to a large ground plane for effective power dissipation. Do not use as

the only ground connection.

DFN Functional Diagram

DIM

IN

1.2V

BANDGAP

V5

AND 5V

REGULATOR

THERMAL

SHUTDOWN

GND

MAX16815

MAX16828

0.8A

IREG

DIFF

AMP

P

OUT

CS+

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