Datasheet > SGM3833B

SGM3833B

更新时间： 2024-11-19 11:13:03

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
14页	982K
描述
Triple-Output AMOLED Display Power Supply

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中文翻译

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数据手册

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SGM3833B 数据手册

SGM3833A/B

Triple-Output

AMOLED Display Power Supply

● Synchronous Inverting Buck-Boost Converter

GENERAL DESCRIPTION

(ELVSS)

The SGM3833A and SGM3833B are designed for

powering AMOLED displays which require V_AVDD

V_ELVDDand V_ELVSS.The devices integrate two boost

converters, VO1 for V_ELVDDand VO3 for V_AVDD, and an

inverting buck-boost converter VO2 for V_ELVSS. Output

voltages of all the three converters can be programmed

in digital steps through the digital interface control pin

(CTRL).

 SGM3833A:

-4.8V to -0.8V Output Voltage with 100mV Steps

 SGM3833B:

-5.4V to -1.4V Output Voltage with 100mV Steps

 -4.0V Default Output Voltage

 1.5% Accuracy at -4.0V (±60mV)

 400mA Output Current Capability

● Synchronous Boost Converter (AVDD)

 5.8V to 7.9V Output Voltage with 300mV Steps

 7.6V Default Output Voltage

The SGM3833A and SGM3833B are both available in a

Green TQFN-3×3-16L package. They operate over an

ambient temperature range of -40℃ to +85℃.

 1.2% Accuracy

 100mA Output Current Capability

● V_INand V_OUTBi-Directional Isolation

● Short Circuit Protection (SCP)

● Overload Protection

● Thermal Shutdown

● V_ELVSSStart-Up Delay: 10ms

FEATURES

● 2.9V to 4.5V Input Voltage Range

● Synchronous Boost Converter (ELVDD)

 4.6V to 5.0V Output Voltage with 100mV Steps

 4.6V Default Output Voltage

● Short Circuit and OLP Detect Time: 1ms

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

 1.2% Accuracy

 400mA Output Current Capability

 Output Voltage Sensing Pin for Path Loss

Compensation (FBS)

APPLICATIONS

Smartphones & Tablets

Active Matrix OLED Displays

TYPICAL APPLICATION

V_ELVDD

4.6V/400mA

4.7μH

VO1

FBS

_IN= 2.9V to 4.5V

SW1

SW2

10μF

4.7μH

10μH

V_ELVSS

-4.0V/400mA

VO2

SGM3833A/B

2×10μF

10μF

SW3

V_AVDD

7.6V/100mA

VO3

PVIN

AVIN

3×10μF

PGND1

PGND2

AGND

Enable Discharge

Enable V_AVDD

EN_VO3

CTRL

Enable V_ELVDD/V_ELVSS

Program Device

Figure 1. Typical Application Circuit

SG Micro Corp

www.sg-micro.com

DECEMBER 2019 – REV. A. 1

12 3 4 5 6 7...14

中文翻译

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