TPS65631 Texas instruments

TPS65631

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TPS65631

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Описание

The TPS65631 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 TPS65631 uses a novel technology enabling excellent line transient performance. For all available packages, see the orderable addendum at the end of the data sheet

2.9–V to 4.5–V Input Voltage Range
Fixed 4.6–V Positive Output Voltage
0.5% V_POS Accuracy from 25°C to 85°C
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 250 mA Supported
Excellent Line Transient Regulation
Short-Circuit Protection
Thermal Shutdown
Available in 3.00–mm × 3.00–mm, 12–Pin QFN Package

Display type	AMOLED
IC integration	AMOLED bias
Vin (min) (V)	2.9
Vin (max) (V)	4.5
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