MXHV9910

R01

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9

2.2.10 Combination Linear and PWM Dimming

A combination of linear and PWM dimming techniques

can be used to achieve a large dimming ratio.

Note: The output current will not go to zero if the LD

pin is pulled to GND because the minimum gate driver

on-time is equal to the current sense blanking interval.

To achieve zero LED current, the PWMD pin should be

used.