TPS65197 Texas instruments

TPS65197

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TPS65197

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Описание

The TPS65197/B is an 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 (VGH).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 always follows its input signals.

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

IC integration	LCD level shifter
Applications	13 to 21 inches, 21 inches and above
Level shifter/scan driver (Ch)	8
Features	Charge sharing, Output discharge
Rating	Catalog
Operating temperature range (°C)	-40 to 85