MAX16815 Datasheet, PDF (6/11 Pages) Maxim Integrated Products – High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming

High-Voltage, 100mA/200mA Adjustable Linear
High-Brightness LED Drivers with PWM Dimming
PIN
TDFN
SO
1
6
—
7
2
8
3
1
4
2
—
3
5
4
6
5
—
—
Pin Description
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 V_IN 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.
TDFN Functional Diagram
DIM
IN
1.2V
BANDGAP
V5
AND 5V
REGULATOR
THERMAL
SHUTDOWN
GND
MAX16815
MAX16828
0.8μA
IREG
DIFF
AMP
P
OUT
CS+
6 _______________________________________________________________________________________