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STMicroelectronics STMP30 AMOLED Display Power Management IC

STMicroelectronics STMP30 AMOLED Display Power Management IC features an input voltage range from 2.9V to 4.8V and contains three integrated DC-DC converters to provide all the power rails needed for AMOLED displays in smartphones and other portable devices. The STMP30 is particularly suitable for battery-operated products, in which the major concern is overall system efficiency. The VOUT1 boost converter has an adjustable output voltage that can be set between 4.6V and 5.0V, in 100mV increments, to optimize the display brightness for the lowest power consumption and the best visibility under any conditions. The 5.0V maximum setting allows the use of High-Brightness Mode (HBM) for ideal viewing in bright outdoor lighting.

The remaining two outputs are provided by a 550mA single-phase buck-boost inverting converter, programmable from -0.8V to -6.6V, and a 5.5V to 7.9V 150mA boost converter. The output voltages are programmed using Single-Wire (S-Wire) protocol through external pins. The PMIC also receives S-Wire messages to operate the AMOLED in Always-On Display (AOD) mode, which improves user convenience by showing information on-screen continuously at very low power. The STMP30 PMIC has a true shutdown mode that helps maximize power savings and safety features that include thermal protection, input under-voltage lockout, and soft-start with inrush current limiting. In addition, the high-voltage outputs feature fast-discharge circuitry and offer short-circuit protection.

Features

  • 2.9V to 4.8V input voltage range
  • VOUT1 boost converter output current up to 550mA with programmable output voltage by ESwire (4.6V to 5.0V), default 4.6V
  • VOUT2 single-phase buck-boost inverting converter output current up to 550mA with programmable output voltage by ESwire (-0.8V to -6.6V), default -3.0V
  • VOUT3 boost converter output current up to 150mA with programmable output voltage by ASwire (5.5V to 7.9V), default 7.3V
  • VOUT1-VOUT2 combined output current capability
    • Up to 800mA, PVIN=3.2V, VOUT1=4.6V, VOUT2=-3V
    • Up to 700mA, PVIN=3.2V, VOUT1=4.6V, VOUT2=-5V
    • Up to 600mA, PVIN=3.2V, VOUT1=4.6V, VOUT2=-6V
  • Support of AOD features with dual SWIRE interface to separately control ELVDD/ELVSS and AVDD power supplies
  • UVLO on input voltage
  • Fast Discharge circuitry for outputs Hi-Z
  • True shut down mode
  • Soft-start with inrush current limitation
  • Over-temperature and short circuit protection
  • CSP-25, 2.161mm x 2.069mm package
  • 0.4mm bump pitch

Applications

  • Mobile phone and portable applications
  • Full solution for Active Matrix OLED power supply management
發佈日期: 2022-04-13 | 更新日期: 2022-05-06