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PT6555 Datasheet, PDF (24/28 Pages) Princeton Technology Corp – LCD Driver IC
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PT6555
ELECTRICAL CHARACTERISTICS FOR THE
ALLOWABLE OPERATING CONDITIONS
(Unless otherwise specified, Ta=25℃, VSS=0V)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Hysteresis
VH CE, CLK, DI
-
0.1VDD
-
V
Power-down detection voltage VDET -
2.7
3.0
-
V
Input high level voltage
IIH CE, CLK, DI: VI=VDD
-
-
5.0
µA
Input high level current
IIL
CE, CLK, DI: VI=0V
-5.0
-
-
µA
Pull-down resistance
RPD KI1 to KI5: VDD=5.0V
50
100
250
KΩ
Output off leakage current
IOFFH DO: VO=6.0V
-
-
6.0
µA
VOH1 KS1 to KS6: IO=-500µA
VDD -1.2
VDD -0.5
VDD -0.2
V
Output high level voltage
VOH2 P1 to P4: IO=-1mA
VOH3 SG1 to SG41: IO=-20µA
VDD -1.0
VDD -1.0
-
-
-
V
-
V
VOH4 COM1 to COM4: IO=-100µA VDD -1.0
-
-
V
VOL1 KS1 to KS6: IO=25µA
0.2
0.5
1.5
V
VOL2 P1 to P4: IO=1mA
-
-
1.0
V
Output low level voltage
VOL3 SG1 to SG41: IO=20µA
-
-
1.0
V
VOL4 COM1 to COM4: IO=100 µA
-
-
1.0
V
VOL5 DO: IO=1mA
-
0.1
0.5
V
VMID1
COM1 to COM4:1/2 bias,
IO=±100µA
1/2VDD -1.0
-
1/2VDD +1.0
V
VMID2
SG1 to SG41:1/3 bias,
IO=±20µA
2/3VDD -1.0
-
2/3VDD +1.0
V
Output middle level voltage *2
VMID3
SG1 to SG41:1/3 bias,
IO=±20µA
1/3VDD -1.0
-
1/3VDD +1.0
V
VMID4
COM1 to COM4:1/3 bias,
IO=±100µA
2/3VDD -1.0
-
2/3VDD +1.0
V
VMID5
COM1 to COM4:1/3 bias,
IO=±100µA
1/3VDD -1.0
-
1/3VDD +1.0
V
Oscillator frequency
fOSC
OSC:R=62KΩ, C=680pF
40
50
60
KHz
IDD1 Sleep mode
-
100
µA
Current drain
IDD2
VDD=6.0V, output open,
1/2 bias, fOSC=50KHz
-
250
500
µA
IDD3
VDD=6.0V, output open,
1/3 bias, fOSC=50KHz
-
200
400
µA
Notes:
1. A capacitor must be added to the power line so that both the power supply voltage (VDD) rise time when power is applied and the power supply
voltage (VDD) fall time when power drops are at least 1ms.
2. DO is an open – drain output and requires a pull-high resistor between 1KΩ to 10KΩ. The pull-up resistor value must be appropriate to the capacitor
of the external wiring so that the signal wave forms are not degraded.
3. Only PT6555-LQ has KI1~KI5, SG36~SG41, KS1~KS6, DO pins.
V1.1
24
August, 2009
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