Product details

Display type AMOLED IC integration AMOLED bias Vin (Min) (V) 2.9 Vin (Max) (V) 4.5 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
Display type AMOLED IC integration AMOLED bias Vin (Min) (V) 2.9 Vin (Max) (V) 4.5 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
WQFN (RTE) 16 9 mm² 3 x 3
  • 2.9V to 4.5V Input Voltage Range
  • Fixed 4.6V VPOS Output Voltage
  • 0.5% Accuracy VPOS at 25°C to Approximately 85ºC
  • External Output Sense Pin for VPOS
  • Excellent Line Transient Regulation
  • Digitally Programmable VNEG, –1.4V to –5.4V
  • - 4V Default Value for VNEG
  • TPS65632 Selectable AVDD, 5.8V and 7.7V TPS65632A Fixed AVDD 7.7V
  • 300mA Output Current for VPOS and VNEG
  • Short Circuit Protection
  • Thermal Shutdown
  • 3 x 3mm 16 pin QFN package
  • 2.9V to 4.5V Input Voltage Range
  • Fixed 4.6V VPOS Output Voltage
  • 0.5% Accuracy VPOS at 25°C to Approximately 85ºC
  • External Output Sense Pin for VPOS
  • Excellent Line Transient Regulation
  • Digitally Programmable VNEG, –1.4V to –5.4V
  • - 4V Default Value for VNEG
  • TPS65632 Selectable AVDD, 5.8V and 7.7V TPS65632A Fixed AVDD 7.7V
  • 300mA Output Current for VPOS and VNEG
  • Short Circuit Protection
  • Thermal Shutdown
  • 3 x 3mm 16 pin QFN package

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.

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.

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TPS65631 ACTIVE Dual Outputs AMOLED Display Power Supply This product does not integrate the AVDD rail and the minimum for Vneg goes down to -4.4V instead of -5.4V.

Technical documentation

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Type Title Date
* Data sheet TPS65632A Features List datasheet 07 Aug 2012
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Basic calculation of an inverting buck-boost power stage (Rev. A) 28 Aug 2017
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) 08 Jan 2014
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

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