TPS65193RGER ,5-Channel Level Shifter for LCD Displays (Dual Channel Scan Driver) 24-VQFN -40 to 85ELECTRICAL CHARACTERISTICSVOFF = –10 V, VON = 30 V, EN = 3.3 V, T = –40°C to 85°C, typical values a ..
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TPS65193RGER
5-Channel Level Shifter for LCD Displays聽(Dual Channel Scan Driver)
STVP
CKVB1
CKVB2
CKVBCS2
CKVCS2
DISH
AGND
VOFF
CKVB1 to ASG
RCS1RBCS1
VON
VlogicDISH
CDLY
STVPto ASG 2
CKV1 to
ASG
CKVBCS1
CKVCS1
CKV1
AGND
VON
STV CPV1 CPV2 NC EN DL
CPV2 from
-CON
CPV1 from
-CON
STV from
-CON 23 22 21 20 19 8 9
S0418-01
VOFF CVOFF
CVON
TPS65193
www.ti.com SLVS964A –JULY 2009–REVISED JULY 2010
Dual High-Voltage Scan Driver for TFT-LCD
Checkfor Samples: TPS65193
1FEATURES Dual High-Voltage Scan Driver APPLICATIONS TFT LCD Using Amorphous Silicon Gate (ASG)• Scan Driver Output Charge Share
Technology• High Output-Voltage Level: Upto35V Low Output-Voltage Level: Downto –28V Logic-Level Inputs 24-Pin 4-mm× 4-mm QFN package
DESCRIPTIONThe TPS65193is dual high-voltage scan driverto drive an amorphous-silicon-gate (ASG) circuit on TFT glass.
Each single high-voltage scan driver receives logic-level inputsof CPVx and generates two high-voltage outputs CKVx and CKVBx. The device receivesa logic-level inputof STV and generatesa high-voltage outputof
STVP. These outputs are swings from Voff (–28V)to Von (35V) and are usedto drive the ASG circuit and
charge/discharge the capacitive loadsof the TFT LCD.In orderto reduce the power dissipationof the device,a
charge-share functionis implemented. The device featuresa discharge function, which shorts Voffto GNDin
orderto shut down the panel faster when the LCDis turned off.
