深圳市桑尼奇科技有限公司

 SGM3849 Triple-Output AMOLED Display Power Supply

1 The SGM3849 is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring VAVDD, VELVDD and VELVSS. The device integrates a boost converter for VELVDD, an inverting buck-boost converter for VELVSS and a boost converter for VAVDD, which are suitable for battery operated products. The digital interface control pin (CTRL) allows programming VAVDD, VELVDD and VELVSS in digital steps. The SGM3849 is available in Green TQFN-3×3-16L package. It operates over an ambient temperature range of -40℃ to +85℃.（点击即可咨询芯片详细信息）

2 ● 2.9V to 4.5V Input Voltage Range

● Synchronous Boost Converter (AVDD) u 5.8V to 7.9V Output Voltage (Programmable) u 6.1V Default Output Voltage u 1.2% Accuracy u 100mA Output Current Capability u VIN to VOUT and VOUT to VIN Isolation

● Synchronous Boost Converter (ELVDD) u 4.6V to 5.0V Output Voltage (Programmable) u 4.6V Default Output Voltageu 1.2% Accuracy u 400mA Output Current Capability u External Output Voltage Sensing Pin for Load Drop Compensation u VIN to VOUT and VOUT to VIN Isolation

● Synchronous Inverting Buck-Boost Converter (ELVSS) u -5.4V to -1.4V Output Voltage (Programmable) u -2.5V Default Output Voltage u 1.6% Accuracy at -2.5V (±40mV) u 400mA Output Current Capability u VIN to VOUT and VOUT to VIN Isolation

● Short Circuit Protection

● Thermal Shutdown

● VELVSS Start-Up Delay: 10ms

● Short Circuit and OLP Detect Time: 1ms

● Available in Green TQFN-3×3-16L Package

 3 APPLICATIONS

Smartphones Small Size Tablets Active Matrix OLED Displays ≤ 8"

PACKAGE OUTLINE DIMENSIONS

FUNCTIONAL BLOCK DIAGRAM

TYPICAL APPLICATION

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