BU97540KV-M Datasheet, PDF (51/70 Pages) Rohm – Multi-function Segment Drivers

BU97540KV-M
6. Line Inversion 1/3-Duty 1/2-Bias Drive Scheme
fo[Hz]
COM1
COM2
COM3
LCD driver output when all LCD
segment corresponding to COM1,
COM2, and COM3 are off
LCD driver output when only LCD segments
corresponding to COM1 are on
LCD driver output when only LCD segments
corresponding to COM2 are on.
LCD driver output when only LCD segments
corresponding to COM1 and COM2 are on.
LCD driver output when only LCD segments
corresponding to COM3 are on.
LCD driver output when LCD segments
corresponding to COM1 and COM3 are on
LCD driver output when LCD segments
corresponding to COM2 and COM3 are on
LCD driver output when LCD segments
corresponding to COM1, COM2 and COM3 are on
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
V _LCD
V_LCD 1, V_LCD 2
0V
Figure 29. LCD Waveform (Line Inversion, 1/3 DUTY, 1/2 BIAS) ^(Note29)
(Note29) COM4 function is same as COM1 at 1/3 duty.
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
51/66
TSZ02201-0P4P0D300970-1-2
29.Jun.2015 Rev.002