Using HV9910B as on/off smps controller?

treez · Apr 20, 2018

Hello,
The HV9910B smps controller datasheet doesnt give the delay for the gate driver going low after the PWMD pin is taken low.
Do you know it?
Also, the delay for the HV9910B gate driver coming back on again after PWMD is taken back high?

HV9910B datasheet
https://www.microchip.com/wwwproducts/en/HV9910B

KlausST · Apr 20, 2018

Hi,

The datasheet says:

When the
PWM signal is zero, the GATE driver is turned off; when
the PWMD signal if high, the GATE driver is enabled.
The PWMD signal does not turn off the other parts of
the IC, therefore, the response of the HV9910B to the
PWMD signal is almost instantaneous. The rate of rise
and fall of the LED current is thus determined solely by
the rise and fall times of the inductor current.

Do you need additional information?

Klaus

Using HV9910B as on/off smps controller?

treez

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KlausST

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Using HV9910B as on/off smps controller?

treez

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KlausST

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