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AMOLED顯示屏電源

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SGM38046

The SGM38046 is a power source device for biasing small AMOLED panels. It can be powered from a single-cell Lithium-Ion/polymer battery or a DC supply in the range of 2.7V to 5.5V to provide OVDD

應(yīng)用領(lǐng)域

Single Inductor Power Supply for Wearable AMOLED Products

產(chǎn)品詳情
GENERAL DESCRIPTION

The SGM38046 is a power source device for biasing small AMOLED panels. It can be powered from a single-cell Lithium-Ion/polymer battery or a DC supply in the range of 2.7V to 5.5V to provide OVDD, OVSS and AVDD voltage sources for the AMOLED panel. Two interim voltage rails (positive and negative) are generated by the integrated buck-boost converter and an inverting charge pump inverter. These rails are regulated by LDOs to get clean and low ripple positive (AVDD and OVDD) and negative (OVSS) outputs. This device is optimized for symmetric output to get the highest efficiency from the charge pump inverter.

The SGM38046 is available in a Green WLCSP-2×2-16B package.

PIN CONFIGURATIONS

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FEATURES

  • 2.7V to 5.5V Input Voltage Range

  • 3.3V AVDD Output Voltage

  • 2.8V to 4.6V OVDD (Default: 3.3V ± 1%, 0.1V/Step)

  • -4.0V to -0.6V OVSS (Default: -3.3V ± 1%, 0.1V/Step)

  • Up to 90mA OVDD & OVSS Combined Output Current Capability (VOVDD = 3.3V, VOVSS = -3.3V)

  • Excellent Line and Load Regulations

  • Low Ripple and Excellent Transient Response

  • Soft-Start

  • True Output Load Disconnect from Input

  • Protection Features

    Under-Voltage Lockout Protection (UVLO)

    Over-Current Protection (OCP)

    Short-Circuit Protection (SCP)

    Over-Voltage Protection (OVP)

    Over-Temperature Protection (OTP)

  • Power-Save Mode for Light-Load Efficiency

  • Less than 1μA Shutdown Current

  • Available in a Green WLCSP-2×2-16B Package

APPLICATIONS

Wearable AMOLED Products

Phones with AMOLED Vice Screen


ORDERING INFORMATION
Part NumberStatusPackagePinsPb-FreeTemp Range
SGM38046YG/TRProductionWLCSP-2×2-16B16Y-40℃ to +85℃