Rainbow-electronics MAX16803 Bedienungsanleitung PDF herunterladen (Seite 5)

MAX16803

High-Voltage, 350mA, High-Brightness LED

Driver with PWM Dimming and 5V Regulator

_______________________________________________________________________________________ 5

DIM

vs. V

DIM

MAX16803 toc13

DIM

(V)

DIM

(µA)

1412108642

100

150

200

250

300

016

SNSE

vs. V

CS-

MAX16803 toc12

CS-

(V)

SNSE

(mV)

4.54.03.53.02.5

201

202

203

204

205

200

2.0 5.0

= 12V

LOAD

= 350mA

Typical Operating Characteristics (continued)

= V

= +12V, T

= +25°C, unless otherwise noted.)

Pin Description

PIN NAME FUNCTION

1, 16 OUT Current-Regulated Output. Connect pin 1 to pin 16.

2, 3 IN Positive Input Supply. Bypass IN with a 0.1µF (min) capacitor to GND. Connect pin 2 to pin 3.

4–8, 14 N.C. Not Internally Connected

9 CS+

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

and CS- to program the output current level.

10 CS-

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

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

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

12 GND Ground

13 DIM

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

Must not be left unconnected.

15 EN Enable Input. Drive EN high to enable the output.

—EP

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

ground connection.

1 2 3 4 5 6 7 8 9 10 11 12

MAX16803 1
PACKAGE OUTLINE 12

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