UPD161622 NEC, UPD161622 Datasheet - Page 85

• Manufacturer Part Number: UPD161622
• Description: 396 OUTPUT TFT-LCD SOURCE DRIVER
• Manufacturer: NEC

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R25
R26
Resistor
D
D
D
D
D
D
D
D
D
6
5
4
3
2
1
0
1
0
Bit
BGRS
VCE
VCD2
PVCOM
RGONG
RGONP
DCON
V
V
CD12
CD11
Symbol
This pin selects whether to use the internal power supply or an external power supply (input
from the BRGIN pin) for generation the common center voltage output from the VCOM pin.
0: The internal power-supply is selected as the VCOM power supply
1: Input from the external power-supply BGRIN is selected as the VCOM power supply
Selects the V
The V
0: The Vo high-level booster voltage level is V
1: The Vo high-level booster voltage level is the same level as V
Selects the V
The V
0: V
1: V
Sets the pre-charge time of a 1-line output period.
0: VBGR (3.0 V TYP.)
1: V
Switches the internal regulator of the gate IC ( PD161640) ON/OFF.
When OFF is selected, a low level is output from the RGONG pin, and when ON is selected, a
high level is output from the RGONG pin.
The RGONG pin of the
0: Regulators of gate driver (V
1: Regulators of gate driver (V
Switches the internal DC/DC converter of the power-supply IC ( PD161660) ON/OFF.
When OFF is selected, a low level is output from the RGONP pin, and when ON is selected, a
high level is output from the RGONP pin.
The RGONP pin of the
connected.
0: Regulators of power-supply IC (V
1: Regulators of power-supply IC (V
Switches the internal DC/DC converter of the power-supply IC ( PD161660) ON/OFF.
When OFF is selected, a low level is output from the DCON pin, and when ON is selected, a
high level is output from the DCON pin.
The DCON pin of this IC and the DCON pin of the power-supply IC must be connected.
0: DC/DC converter is OFF
1: DC/DC converter is ON
Performs booster control for the DC/DC converter in the power-supply IC ( PD161660)
The data set with this bit is output from the V
The V
pin of the power-supply IC.
V
CD12
DD2
DD2
S
, V
CE
CD2
CD11
= V
= V
CD11
pin of the
pin of the
pin and V
DC
CD
= 0, 1: V
= 1, 0: V
= 1, 1: V
= 0, 0: V
O
DD2
Data Sheet S15649EJ2V0DS
output level of the power-supply IC ( PD161660).
2
3
output level of the power-supply IC ( PD161660).
CD12
DD1
DD1
DD1
PD161622 and the V
DD1
PD161622 and the V
= V
= V
= V
pin of
= V
PD161622 and the RGON pin of the power-supply IC must be
PD161622 and the RGON pin of the gate IC must be connected.
DC
DC
DC
DC
B
B
) are OFF
) are ON
5
6
7
PD161622 must be connected to the V
4
T
T
, V
, V
S
S
) are OFF
) are ON
CE
CD2
Function
pin of the power-supply IC must be connected.
CD11
pin of the power-supply IC must be connected.
DD1
pin and the V
minus 1 level
CD12
DD1
pin.
CD11
pin and the V
PD161622
CD12
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