LM3533 Datasheet, PDF (21/53 Pages) Texas Instruments – Complete Lighting Power Solution for Smartphone Handsets

LM3533
FIGURE 7. ALS Brightness Zone to Backlight Current Mapping
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PWM INPUT IN ALS MODE
The PWM input can be enabled for any of the 5 Brightness Zones (see Table 7). This makes the brightness target for the PWM
enabled zone have its current a function of the PWM input duty cycle, the full-scale current setting for that particular bank, and the
brightness target for that particular zone.
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