一. A low version:
1. Input voltage range: 9V-16V, the recommended input voltage range is 5V~27V or greater.
2. Working voltage: 12V; test voltage: 13.5V
3. Load: 3V, 150mA white LEDs each. A total of 30. The series and parallel connection is not limited.
4. Drive requirements: constant current.
5. Topology: SEPIC or BUCK-BOOST is recommended.
6. Other requirements: 1. PWM brightness adjustment.
二. High version:
The lighting mode of the 30 LEDs needs to be illuminated by running water, and the running water mode is sequentially illuminated from 1 to 30. For this, you need to reserve logic control.
三. Component requirements:
1. Car level
2. The temperature resistance of chips and other components should be no less than -40 ° C ~ 150 ° C.
3. Preference is given to chips and solutions with proven usage.
4. EMC compatibility (Do not choose a higher switching frequency to prevent EMC failure).
