ZHCSD61L July 2012 – May 2019 LP8556
PRODUCTION DATA.
Address A4h
| CFG4 REGISTER | |||||||
|---|---|---|---|---|---|---|---|
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| PWM_TO_I_THRESHOLD[3:0] | RESERVED | STEADY_ _DITHER | DITHER[1:0] | ||||
| NAME | BIT | ACCESS | DESCRIPTION | ||||
| PWM_TO_I_THRESHOLD | 7:4 | R/W | Select switch point between PWM and pure current dimming
0000 = current dimming across entire range 0001 = switch point at 10% of the maximum LED current. 0010 = switch point at 12.5% of the maximum LED current. 0011 = switch point at 15% of the maximum LED current. 0100 = switch point at 17.5% of the maximum LED current. 0101 = switch point at 20% of the maximum LED current. 0110 = switch point at 22.5% of the maximum LED current. 0111 = switch point at 25% of the maximum LED current. This is a recommended selection. 1000 = switch point at 33.33% of the maximum LED current. 1001 = switch point at 41.67% of the maximum LED current. 1010 = switch point at 50% of the maximum LED current. 1011 to 1111 = PWM dimming across entire range |
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| RESERVED | 3 | R/W | |||||
| STEADY_DITHER | 2 | R/W | Dither function method select:
0 = Dither only on transitions 1 = Dither at all times |
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| DITHER | 1:0 | R/W | Dither function control
00 = Dithering disabled 01 = 1-bit dithering 10 = 2-bit dithering 11 = 3-bit dithering |
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