TPS65176 Texas instruments

TPS65176

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TPS65176

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Описание

The TPS65176 provides a simple and economic power supply solution for a wide variety of LCD bias applications. A buck converter generates a logic supply for the timing controller (T-CON) while a boost converter generates the AVDD voltage to power the Source Driver ICs. Two regulated charge pump controllers generate VGON and VGOFF with very few external components to turn on and off the display transistors. The sequencing of the supplies at power on is fully controllable by the user. The TPS65176 also includes various protection mechanisms to ensure the safe operation of the LCD panels.

9.5V to 14V Input Voltage Range
Up to 18.5V Boost Converter with 3.5-A Switch Current
500kHz to 2 MHz Adjustable Switching Frequency for Boost Converter
2.5-A Buck Converter Switch Current Limit
Fixed 750kHz Switching Frequency for Buck Converter
Two Charge Pump Controllers for V_GON and V_GOFF
Adjustable Power-on Sequence
Gate Driver Signal for Isolation Switch
Internal Soft-Start
Undervoltage Lockout
Over Voltage Protection
Short Circuit Protection
Thermal Shutdown

Display type	LCD unipolar
IC integration	LCD bias
Vin (min) (V)	9.5
Vin (max) (V)	14
Applications	13 to 21 inches, 21 inches and above
Source driver voltage (min) (V)	13.7
Source driver voltage (max) (V)	18.5
Level shifter/scan driver (Ch)	0
Features	Reset generator
Topology	Boost, Buck
Rating	Catalog
Operating temperature range (°C)	-40 to 85