BU91520KV-M Datasheet, PDF (14/45 Pages) Rohm – Low Duty LCD Segment Driver

BU91520KV-M
12. W10 to W17^(Note11), W20 to W27, W30 to W37, W40 to W47, W50 to W57, W60 to W67: PWM output waveform duty control
data.
These control data bits set the high level pulse width(duty) for PWM output waveforms.
N = 1 to 6, Tp = 1/fp
Wn0
0
Wn1
0
Wn2
0
Wn3
0
Wn4
0
Wn5
0
Wn6
0
Wn7
0
PWM Duty
(1/256) x Tp
Reset condition
○
0
0
0
0
0
0
0
1
(2/256) x Tp
0
0
0
0
0
0
1
0
(3/256) x Tp
0
0
0
0
0
0
1
1
(4/256) x Tp
0
0
0
0
0
1
0
0
(5/256) x Tp
0
0
0
0
0
1
0
1
(6/256) x Tp
0
0
0
0
0
1
1
0
(7/256) x Tp
0
0
0
0
0
1
1
1
(8/256) x Tp
0
0
0
0
1
0
0
0
(9/256) x Tp
0
0
0
0
1
0
0
1
(10/256) x Tp
0
0
0
0
1
0
1
0
(11/256) x Tp
0
0
0
0
1
0
1
1
(12/256) x Tp
0
0
0
0
1
1
0
0
(13/256) x Tp
0
0
0
0
1
1
0
1
(14/256) x Tp
0
0
0
0
1
1
1
0
(15/256) x Tp
0
0
0
0
1
1
1
1
(16/256) x Tp
0
0
0
1
0
0
0
0
(17/256) x Tp
0
0
0
1
0
0
0
1
(18/256) x Tp
0
0
0
1
0
0
1
0
(19/256) x Tp
0
0
0
1
0
0
1
1
(20/256) x Tp
0
0
0
1
0
1
0
0
(21/256) x Tp
0
0
0
1
0
1
0
1
(22/256) x Tp
0
0
0
1
0
1
1
0
(23/256) x Tp
0
0
0
1
0
1
1
1
(24/256) x Tp
0
0
0
1
1
0
0
0
(25/256) x Tp
0
0
0
1
1
0
0
1
(26/256) x Tp
0
0
0
1
1
0
1
0
(27/256) x Tp
1
1
1
0
0
1
0
1
(230/256) x Tp
1
1
1
0
0
1
1
0
(231/256) x Tp
1
1
1
0
0
1
1
1
(232/256) x Tp
1
1
1
0
1
0
0
0
(233/256) x Tp
1
1
1
0
1
0
0
1
(234/256) x Tp
1
1
1
0
1
0
1
0
(235/256) x Tp
1
1
1
0
1
0
1
1
(236/256) x Tp
1
1
1
0
1
1
0
0
(237/256) x Tp
1
1
1
0
1
1
0
1
(238/256) x Tp
1
1
1
0
1
1
1
0
(239/256) x Tp
1
1
1
0
1
1
1
1
(240/256) x Tp
1
1
1
1
0
0
0
0
(241/256) x Tp
1
1
1
1
0
0
0
1
(242/256) x Tp
1
1
1
1
0
0
1
0
(243/256) x Tp
1
1
1
1
0
0
1
1
(244/256) x Tp
1
1
1
1
0
1
0
0
(245/256) x Tp
1
1
1
1
0
1
0
1
(246/256) x Tp
1
1
1
1
0
1
1
0
(247/256) x Tp
1
1
1
1
0
1
1
1
(248/256) x Tp
1
1
1
1
1
0
0
0
(249/256) x Tp
1
1
1
1
1
0
0
1
(250/256) x Tp
1
1
1
1
1
0
1
0
(251/256) x Tp
1
1
1
1
1
0
1
1
(252/256) x Tp
1
1
1
1
1
1
0
0
(253/256) x Tp
1
1
1
1
1
1
0
1
(254/256) x Tp
1
1
1
1
1
1
1
0
(255/256) x Tp
1
1
1
1
1
1
1
1
(256/256) x Tp
(Note11):W10 to W17:S1/P1/G1 PWM duty data
W20 to W27:S2/P2/G2 PWM duty data
W30 to W37:S3/P3/G3 PWM duty data
W40 to W47:S4/P4/G4 PWM duty data
W50 to W57:S5/P5/G5 PWM duty data
W60 to W67:S6/P6/G6 PWM duty data
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TSZ22111・15・001
14/41
TSZ02201-0P4P0D301340-1-2
22.Jan.2016 Rev.001