EL5000AER INTERSIL [Intersil Corporation], EL5000AER Datasheet - Page 9

• Manufacturer Part Number: EL5000AER
• Description: High Voltage TFT-LCD Logic Driver
• Manufacturer: INTERSIL [Intersil Corporation]

Output Waveforms
Figure 21 shows a typical CKV and CKVB output
waveforms. The output droop rate depends on the external
discharge resistor value and the output capacitor load.
FIGURE 21. CKV AND CKVB OUTPUT WAVEFORMS
CKVB
CKVB
CKV
CKV
CPV
FIGURE 22. CPV TO CKV/CKVB DELAY
9
FIGURE 24. TYPICAL APPLICATION CIRCUIT
EL5000A
Figure 22 shows the delay time between the incoming
horizontal sync timing pulse CPV and the generated output
pulses. ∆t is dependent mainly on the value of C
shows the effect of STV.
Auxiliary Functions
DISH: It discharges V
drops out, when 'DISH' is < -0.6V (V
off), V
OECON: It provides continuos polarity changes to the
TFT-LCD panel during the vertical blanking.
OFF
CKVB
CKV
CPV
STV
is connected to ground level by 1kΩ.
FIGURE 23. EFFECT OF STV
OFF
when the logic power voltage level
CC
system power turns
L
. Figure 23
July 28, 2005
FN6167.0