TPS65163RGZR Electronic IC Chips LCD Bias Supply With Integrated Level Shifters
electronic integrated circuit
,linear integrated circuits
TPS65163
LCD Bias Supply With Integrated Level Shifters
FEATURES
• 8.6-V to 14.7-V Input Voltage Range
• 2.8-A Boost Converter Switch Current Limit
• Boost Converter Output Voltages up to 18.5 V
• Boost and Buck Converter Short-Circuit Protection
• 1.5-A Buck Converter (3.3 V) Switch Current Limit
• Fixed 750-kHz Switching Frequency for Buck and Boost Converters
• Buck Converter and Boost Converter Soft-Start
• Two Charge-Pump Controllers to Regulate VGH and VGL
• Control Signal for External High-Side MOSFET Isolation Switch
• 9-Channel Level Shifter Organized in Two Groups of 7 and 2 Channels (Separate VGH)
• Gate Shaping (Level Shifter Channels 1 to 6)
• Display Panel Discharge Function
• Supports VGH Voltages up to 38 V
• Supports VGL Voltages Down to –13 V
• Reset Signal With Programmable Reset-Pulse Duration
• Thermal Shutdown
• 48-Pin 7-mm × 7-mm QFN Package
APPLICATIONS
• LCD TVs and Monitors Using GIP Technology
DESCRIPTION
The TPS65163 integrates a boost converter, buck converter, reset generator, two charge pump controllers and a nine-channel level shifter in a single device.
In typical display panel applications, the boost converter generates the display panel source voltage, VS; the buck converter generates the system logic supply, VLOGIC; and the two charge pump controllers regulate the external charge pumps generating the display transistors’ on and off supplies, VGH and VGL.
The level shifters transform the logic-level control signals generated by the display timing controller into the high-level signals needed by the LCD panel. The nine level-shifter channels are organized in two groups, each with its own positive supply voltage (VGH). Each channel uses a low-impedance output stage to achieve fast rise and fall times, even when driving the capacitive loads present in LCD applications. Channels 1 to 6 also support gate voltage shaping.
The TPS65163 also provides a reset circuit that monitors the buck converter output (VLOGIC) and generates a reset signal for the timing controller during power up and power down.
A control signal can also be generated to control an external MOSFET isolation switch located between the output of the boost converter and the display panel.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted) (1)
| VALUE | UNIT | ||
|---|---|---|---|
| Supply voltage(2) | VIN | –0.3 to 20 | V |
| VGH1, VGH2 | –0.3 to 45 | ||
| VGL | 0.3 to –15 | ||
| Input voltage(2) |
FBN, FBP, FBB, FB, DLY, CRST, SS, COMP, VL, FLK1–FLK3, IN1–IN9, VSENSE |
–0.3 to 7 | V |
| Output voltage(2) | RST | –0.3 to 7 | V |
| SWB, CTRLP, GD, SW, CTRLN | –0.3 to 20 | ||
| RE | –0.3 to 45 | ||
| OUT1–OUT9, DISCHARGE | –15 to 45 | ||
| Output current | GD | 1 | mA |
| RE | 100 | ||
| ESD rating | Human-body model | 2000 | V |
| Machine model | 200 | V | |
| Charged-device model | 700 | V | |
| Continuous power dissipation | See Dissipation Table | W | |
| Operating ambient temperature range | –40 to 85 | °C | |
| Operating junction temperature range | –40 to 150 | °C | |
| Storage temperature range | –65 to 150 | °C | |
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) With respect to the GND and AGND pins.
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