Typical operating characteristics (continued), Pin description – Rainbow Electronics MAX16803 User Manual
Page 5
MAX16803
High-Voltage, 350mA, High-Brightness LED
Driver with PWM Dimming and 5V Regulator
_______________________________________________________________________________________
5
I
DIM
vs. V
DIM
MAX16803 toc13
V
DIM
(V)
I
DIM
(µ
A)
14
12
10
8
6
4
2
50
100
150
200
250
300
0
0
16
V
SNSE
vs. V
CS-
MAX16803 toc12
V
CS-
(V)
V
SNSE
(mV)
4.5
4.0
3.5
3.0
2.5
201
202
203
204
205
200
2.0
5.0
V
IN
= 12V
I
LOAD
= 350mA
Typical Operating Characteristics (continued)
(V
IN
= V
EN
= +12V, T
A
= +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.