Absolute Maximum Ratings (Vss = 0V)
• H driver supply voltage
VDD, Cext/Rext
–1.0 to +17 V
• V driver boost supply voltage VDDG
VDD – 1.0 to +18 V
• V driver negative supply voltage VSSG
–3.0 to +1.0 V
• Common voltage of panel
COM
–1.0 to +17 V
• H driver input pin voltage
HST, HCK1, HCK2, RGT, WIDE –1.0 to +17 V
• V driver input pin voltage
VST, VCK, EN, DWN, REF
–1.0 to +15 V
• Video signal, uniformity improvement signal input pin voltage
GREEN, RED, BLUE, PSIG
–1.0 to +13 V
• Operating temperature
Topr
–10 to +60 °C
• Storage temperature
Tstg
–30 to +85 °C
ACX306AK
Operating Conditions of Panel Block
1. Input/output supply voltage conditions∗1
(VSS = 0V)
Item
Symbol
Min.
Typ.
Max. Unit
Supply voltage
VDD
11.4
Cext/Rext∗2 VDD – 3.4
VDDG output voltage setting
VDDG
14.0
VSSG output voltage setting∗3
VSSG
–2.3
Resistor connected to Cext/Rext pin∗2 Rext
—
12.0
12.0
15.0
–1.8
10
12.6
V
—
V
16.3
V
–1.5
V
160
kΩ
∗1 The VDD typical voltage setting is noted as 12.0V in these specifications.
∗2 Connect the resistor and capacitor to the Cext/Rext pin as shown in the figure below.
∗3 For the VDDG, VSSG output setting, connect an external smoothing capacitor and a voltage stabilizing
Zener diode as shown in the figure below.
The Cext/Rext value differs
according to the rising time
of the panel supply voltage.
VDD
VDD
Cext/Rext
VDD – Cext/Rext
7
text
Time
Set a Cext value that satisfies
text > 1ms.
Rext
Cext
ACX306AK
VDD VSSG
1µF
Cext/Rext
VSS
VDDG
1µF
Recommended
voltage applied
example Zener
diode.
(RD2.7UM is
recommended)
Recommended
voltage applied
example Zener
diode.
(RD4.3UM is
recommended)
–3–