ML9058E datasheet(36/76 Pages) LAPIS

Part #	ML9058E

Description	132-Channel LCD Driver

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Manufacturer	LAPIS [LAPIS Semiconductor Co., Ltd.]

Direct Link	http://www.lapis-semi.com/

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36 / 76 page

FEDL9058E-01

LAPIS Semiconductor

ML9058E

36/76

In Figures 10 and 11, the voltage VEV is obtained by the following equation by setting the electronic

potentiometer between 0 and 63.

VEV = (1 - (

/324))  VREG

 = 0: VEV = (1 – (0/324))  3.0 V = 3.0 V

 = 31: VEV = (1 – (31/324))  3.0 V = 2.712 V

 = 63: VEV = (1 – (63/324))  3.0 V = 2.416 V

The increment size of the electronic potentiometer at VEV when VREG = 3.0 is :

3.0 – 2.416

 =

= 9.27 mV (Nominal)

63

When VREG = 3.069 V,

 = 0 : VEV = 3.069 V,  = 63 : VEV = 2.472 V

The increment size is :

3.069 V – 2.472 V

 =

= 9.476 mV

63

When VREG = 2.931 V,

 = 0 : VEV = 2.931 V,  = 63 : VEV = 2.361 V

The increment size is :

2.931 V – 2.361 V

 =

= 9.047 mV

63

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