S6B1713A15-B0CZ Datasheet

  • S6B1713A15-B0CZ

  • 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD

  • 417.73KB

  • 70页

  • SAMSUNG   SAMSUNG

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S6B1713
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
In Case of Using External Resistors, Ra and Rb. (INTRS = "L")
When INTRS pin is 鈥淟鈥? it is necessary to connect external regulator resistor Ra between VR and V
SS
, and Rb
between V0 and VR.
Example: For the following requirements
1. LCD driver voltage, V0 = 10V
2. 6-bit reference voltage register = (1, 0, 0, 0, 0, 0)
3. Maximum current flowing Ra, Rb = 1 uA
From Eq. 1
Rb
10 = ( 1 +
铮э'铮?/div>
) x V
EV
[V] ------ (Eq. 3)
Ra
From Eq. 2
(63 - 32)
V
EV
= ( 1 -
铮э'铮э'铮э'
) x 2.0 = 1.79 [V] ------ (Eq. 4)
300
From requirement 3.
10
铮э'铮э'铮э'
= 1 [uA] ------ (Eq. 5)
Ra + Rb
From equations Eq. 3, 4 and 5
Ra = 1.79 [M鈩
Rb = 8.21 [M鈩
The following table shows the range of V0 depending on the above requirements.
Table 16. V0 Depending on Electronic Volume Level
Electronic volume level
0
V0
8.83
.......
.......
32
10.00
.......
.......
63
11.17
29

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