This circuit constructed to derive 1W power LED array, the IC MAX16832 is a step down constant current high brightness LED driver.
You can design a LED bulbs, LED illumination applications or other power LED based lighting application by using MAX16832.
Circuit diagram
This circuit constructed with self PWM oscillation circuit and option for external PWM input hence you can choose the PWM signal from internal source / external source, by varying the PWM pulse LED brightness level varies in wide range.
Components List
| S.No | Name | Quantity |
| 1. | IC MAX16832 | 1 |
| 2. | 1Watt white LED | 5 |
| 3. | Transistor BC547 Transistor BC557 |
1 1 |
| 4. | Diode 1N4007 | 1 |
| 5. | Schottky diode 1N5819 | 1 |
| 6. | Resistor 10KΩ 100KΩ 2K 100KΩ 220Ω/1W |
1 1 1 1 1 |
| 7. | Capacitor – 1µF/50V | 2 |
| 8. | Switch SPDT On/off Switch |
1 1 |
Data sheet you can get here MAX16832A-MAX16832C
Looks good i’m trying to make this driver and it will work hopefully …
What’s the max amount of LED I can connect?
Thanks!
From five to ten, Refer datasheet for more information.