AMLBW-3625Z Datasheet, PDF (7/8 Pages) AIMTEC – Step Up LED Driver

Series AMLBW-Z
Up to 700mA | Step Up LED Driver
Output Current Adjustment by PWM Control:
A Pulse Width Modulation (PWM) signal with a duty cycle DPWM can be applied to the DIM pin as shown below.
+Vin
1
PWM
5V
-Vin 4
0V
DIM
AMLBW-Z
2
3
EN
+LED
5
1^st LED
1
6
Last LED
1
-LED
Driving DIM Via Open Collector Transistor
The DIM pin can also be driven via an open collector transistor as shown below.
+5V
PWM
12K
210K
2SD1782K
GND
+Vin
1
AMLBW-Z
4 -Vin
2
3
DIM
EN
+LED
5
1^st LED
1
6
Last LED
1
-LED
Driving the VADJ from a Microcontroller
The DIM can be driven from an open drain output of a microcontroller as shown below.
+5V
12K
MCU
+Vin
1
4
AMLBW-Z
-Vin
+LED
5
1^st LED
1
6
2SK3018
GND
2
3
DIM
EN
Last LED
1
-LED
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