TPS65632A Texas instruments

TPS65632A

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TPS65632A

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Описание

The TPS65632A is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring three supply rails, VPOS, VNEG and AVDD. The device integrates a boost converter for VPOS, an inverting buck boost converter for VNEG and a boost converter for AVDD which are suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65632A uses a novel technology enabling excellent line and load regulation.

2.9V to 4.5V Input Voltage Range
Fixed 4.6V V_POS Output Voltage
0.5% Accuracy V_POS at 25°C to Approximately 85ºC
External Output Sense Pin for V_POS
Excellent Line Transient Regulation
Digitally Programmable V_NEG, –1.4V to –5.4V
- 4V Default Value for V_NEG
TPS65632 Selectable AVDD, 5.8V and 7.7V TPS65632A Fixed AVDD 7.7V
300mA Output Current for V_POS and V_NEG
Short Circuit Protection
Thermal Shutdown
3 x 3mm 16 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
Source driver voltage (min) (V)	7.7
Source driver voltage (max) (V)	7.7
Level shifter/scan driver (Ch)	0
V_POS (min) (V)	4.6
V_POS (max) (V)	4.6
V_NEG (min) (V)	-4
V_NEG (max) (V)	-4
Features	Digital control interface
Topology	Boost, Buck-Boost
Rating	Catalog
Operating temperature range (°C)	-40 to 85