KING BILLION ELECTRONICS CO., LTD

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億

電

子

股

份

有

限

公

司

HE83R126

HE80000 SERIES

10

Preliminary V1.02E

LC2

LC1

LVF

LV4

LV1

LV2

LV3

LV1

100K~30%

VR1

C10

0.1u

C2

0.1u

C8

0.1u

C15

0.1U

C4

0.1u

2G LCD Charge Pump Circuit,1/5 Bias,1/8 Duty,3V Configulation

Adjust resister for

tuning LV1 voltage,

And regulte LV1 voltage

at 0.75V, than the 4

times charge pump will

let LV4 = 4 * LV1 = 3V

Regulated Voltage Capacitor

8 * 24 ~ 8 * 32

LCD Display Range

MaskOption Must Select 4 Times Charge Pump LCD Regulator Enable

Charge Pump Capacitor

Note : Fix resister for

the same Lot.

LCD PANEL

J. Important Note

1. LCD driving circuit must be turn off before IC goes into sleep mode.

2. Please bonds the TSTP_P, RSTP_N and PRTD[7:0] with test point on PCB (can be soldered and

probed) as you can, then KB can do some IC testing job on PCB. Please connect TSTP_P pin with

(Testing point with through hole).

K. Updated Record

Version

Date

Section

Original Content

New Content

Preliminary1.02

Jul 2,

2002

I

Modify Application Circuit

Add zero Ohm resistor

to TSTP_P.