TPS65197_16 Datasheet, PDF (1/12 Pages) Texas Instruments – 8-Channel Level-Shifter Supporting No, 2-Channel and 3-Channel Charge-Sharing with Panel Discharge to VGH during Shut-Down

TPS65197, TPS65197B
SLVSBD7A – JULY 2015
TPS65197x: 8-Channel Level-Shifter Supporting No, 2-Channel and 3-Channel
Charge-Sharing with Panel Discharge to VGH during Shut-Down
1 Features
•1 8-Channel Level-Shifter (STV, RESET, 6 × CLK)
• High Output-Voltage Level 16.5 V to 45 V (VGH)
• Low Output-Voltage Level Down to –20 V (VGL)
• Selectable Charge-Sharing
– No Charge-Sharing
– 2-Channel Charge-Sharing
– 3-Channel Charge-Sharing
• 2-Channel Panel Discharge
• T-CON Failure Detection
– TPS65197: Logic Resets by STV Pulse
– TPS65197B: No Reset of the Logic
• Latched Shut-Down Detection (Clocks to VGH)
• Supports 100-kHz Clock Operating Frequency
• 28-Pin 4-mm × 4-mm QFN Package
2 Applications
• Gate-in-Panel (GIP) LCD
– Notebook
– Monitor
– TV
3 Description
The TPS65197/B is a 8-channel level-shifter with
discharge function intended for use in LCD display
applications such as Notebooks, Monitors and TVs.
The device converts the timing-controller (T-CON)
logic-level signals to the high-level signals needed by
the gate-in-panel (GIP) display.
The clock outputs, CLKOUTx, support normal level
shifting operation and 2-channel or 3-channel charge-
sharing, which can be used to improve picture quality
and power consumption. At power down, all outputs
follow their input signals as long as possible; when
the discharge function is used, the outputs are pulled
high (V_GH).
The TPS65197 implements a logic reset to ignore
wrong T-CON signals after the rising STV edge which
forces all 6 output clocks to VGL1. The next CLKIN1
rising edge unlocks the logic and enables normal
operation. The TPS65197B does not have the logic
reset and follows always its input signals.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65197
WQFN (28)
4.00 mm x 4.00 mm
TPS65197B
WQFN (28)
4.00 mm x 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
V(CLK1)
V(CLK2)
V(CLK3)
V(CLK4)
V(CLK5)
V(CLK6)
V(STV)
V(RESET)
V(GH)
SEL_CS
CLKIN1
CLKIN2
CLKIN3
CLKIN4
CLKIN5
CLKIN6
STVIN
RESETIN
Level
Shifter
CLKOUT1
CS_1
CLKOUT2
CS_2
CLKOUT3
CS_3
CLKOUT4
CS_4
CLKOUT5
CLKOUT6
STVOUT
RESETOUT
DIS_SENSE Discharge
DISCH1
DISCH2
VGH
GND
V(CLKOUT1)
V(CLKOUT2)
V(CLKOUT3)
V(CLKOUT4)
V(CLKOUT5)
V(CLKOUT6)
V(STVOUT)
V(RESETOUT)
V(GL1)
VGL1
V(GL2)
VGL2
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.