MAX16803(2006) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX16803
(Rev.:2006)

High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator

Maxim Integrated 

High-Voltage, 350mA, High-Brightness LED

Driver with PWM Dimming and 5V Regulator

Typical Operating Characteristics (continued)

(VIN = VEN = +12V, TA = +25°C, unless otherwise noted.)

VSNSE vs. VCS-

205

204

203

202

201

VIN = 12V

ILOAD = 350mA

200

2.0 2.5 3.0 3.5 4.0 4.5 5.0

VCS- (V)

IDIM vs. VDIM

300

250

200

150

100

50

0

0 2 4 6 8 10 12 14 16

VDIM (V)

PIN

1, 16

2, 3

4–8, 14

9

10

11

12

13

15

—

NAME

OUT

IN

N.C.

CS+

CS-

V5

GND

DIM

EN

EP

Pin Description

FUNCTION

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.

Not Internally Connected

Positive Input of the Internal Differential Amplifier. Connect the current-sense resistor between CS+

and CS- to program the output current level.

Negative Input of the Internal Differential Amplifier. Connect the current-sense resistor between

CS- and CS+ to program the output current level.

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

Ground

Pulsed Dimming Input. Drive DIM low to disable the output. Drive DIM high to enable the output.

Must not be left unconnected.

Enable Input. Drive EN high to enable the output.

Exposed Pad. Connect to the ground plane for effective power dissipation. Do not use as the only

ground connection.

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