SLUUCT0A may 2023 – june 2023 TPS923652 , TPS923653 , TPS923654 , TPS923655
This design describes an application of the TPS92365x as an LED driver using the following specifications. For applications with a different input voltage range or different output voltage and current, please refer to the TPS92365x datasheet.
Table 3-1 lists the electrical performance specifications.
Parameter | Test Conditions | MIN | TYP | MAX | Units |
---|---|---|---|---|---|
Input voltage range, VIN | 4.5 | 60 | V | ||
LED forward voltage | Single white LED | 3 | V | ||
Output voltage range, VOUT | LED+ to LED–, depends on VIN | 60 | V | ||
Output current | 3.3V, 100% duty, PWM input at ADIM/HD pin (TPS923655DMTREVM, TPS923655DRRREVM) | 2 | A | ||
3.3V, 100% duty, PWM input at ADIM/HD pin (TPS923653DYYREVM) | 2 | A | |||
Output current ripple | VIN = 24 V, 15 white LEDs, 2-A output current | 100 | mApp | ||
Analog dimming range | 3.3-V PWM at ADIM/HD pin | 1 | 100 | % | |
Analog dimming frequency | 0.1 | 100 | kHz | ||
PWM dimming range | 3.3-V PWM at PWM/EN pin | 1 | 100 | % | |
PWM dimming frequency | 0.1 | 50 | kHz | ||
Switching frequency | 400 | kHz | |||
Efficiency | VIN = 24 V, 15 white LEDs, 2-A output current | 95 | % |