SGM3842数据手册SGMICRO中文资料规格书

描述 Description

The SGM3842 is designed for powering AMOLED displays which requires VELVDD, VELVSS, VAVDD and VDVDD. The device integrates two Boost converters, VO1 for VELVDD and VO3 for VAVDD, a dual-phase inverting Buck-Boost converter VO2 for VELVSS and a Buck converter VO4 for VDVDD. Output voltages of all the four converters can be programmed in digital steps through the digital interface control pins (SWIRE1 & SWIRE2).
The SGM3842 is available in a Green WLCSP-2.5×2.9-42B package.

特性 Features

• 2.9V to 4.8V Input Supply Voltage Range

• Synchronous Boost Converter (ELVDD)
4.6V to 5.2V Output Voltage with 100mV Steps
4.6V Default Output Voltage
0.8% Accuracy at 4.6V
1A Output Current Capability
Output Voltage Sensing Pin for Path Loss Compensation (FB1)

• Synchronous Inverting Buck-Boost Converter (ELVSS)
-10V to -1.4V Output Voltage with 100mV Steps
-5.0V Default Output Voltage
1% Accuracy at -5V
1A Output Current Capability at -5.4V
660mA Output Current Capability at -9V

• Synchronous Boost Converter (AVDD)
5.5V to 8.0V Output Voltage with 100mV Steps
7.0V Default Output Voltage
0.7% Accuracy at 7.0V
150mA Output Current Capability

• Synchronous Buck Converter (DVDD)
0.8V to 1.5V Output Voltage with 25mV Steps
1.2V Default Output Voltage
1.1% Accuracy at 1.2V
300mA Output Current Capability

• VIN and VOUT Bi-Directional Isolation

• Short Circuit Protection (SCP)

• Overload Protection

• Thermal Shutdown

• VELVSS Start-Up Delay: 6ms

• Short Circuit and OLP Detection Time: 1.2ms

• Available in a Green WLCSP-2.5×2.9-42B Package

应用 Application

Smartphones & Tablets
Active Matrix OLED Displays