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TPS92515HV: Reduced for startup time

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Part Number:TPS92515HV

Hello E2E,

Our using EVM has about 2.5-msec startup time.
Conditions are follows;
- Vin is 24V.
- LEDs are 5 pieces in series. Vf = 3.05V/piece.
- ILED is 500mA.

At dumming from PWM-port, we want to reduce the startup time. I think that if prebias input for Vcc and IADJ that startup time to be early.

Question;
1) When Vin is not input, can I input 5V to Vcc?
2) When Vin input and PWM input Low, can I input 5V to Vcc and any voltage input to IADJ?

Regards,
ACGUY


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