TPS65631W Texas instruments

TPS65631W

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TPS65631W

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Описание

The TPS65631W is designed to drive AMOLED (Active Matrix Organic Light Emitting Diode) displays requiring positive and negative supply rails. The device integrates a boost converter for VPOS and an inverting buck boost converter for VNEG and is suitable for battery-operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65631W uses a novel technology enabling excellent line transient performance.

2.9-V to 4.5-V Input Voltage Range
Fixed 4.6-V Positive Output Voltage
0.5% V_POS Accuracy from 25ºC to 85ºC
Separate V_POS Output Sense Pin
Negative Output Voltage Digitally Programmable from –1.4 V to –4.4 V (–4 V Default)
Output Currents up to 200 mA Supported
Excellent Line Transient Regulation
Outputs High Impedance During Shut Down
Short-Circuit Protection
Thermal Shutdown
Available in 2.5-mm × 2.5-mm, 10-Pin QFN Package

Display type	AMOLED
IC integration	AMOLED bias
Vin (min) (V)	2.9
Vin (max) (V)	4.4
Applications	7 inches or less
Level shifter/scan driver (Ch)	0
V_POS (min) (V)	4.6
V_POS (max) (V)	4.6
V_NEG (min) (V)	-4.4
V_NEG (max) (V)	-1.4
Features	Digital control interface
Topology	Boost, Buck-Boost
Rating	Catalog
Operating temperature range (°C)	-40 to 85