The SGM3843 is a PMIC (Power Management IC) designed for powering AMOLED (Active Matrix Organic LED) displays which require VELVDD, VELVSS, VAVDD, VDVDD and VVGL.
The device integrates two Boost converters VO1 for VELVDD and VO3 for VAVDD, one dual-phase inverting Buck-Boost converter VO2 for VELVSS, one single-phase inverting Buck-Boost converter VO5 for VVGL, and one Buck converter VO4 for VDVDD. It also integrates one negative low dropout linear regulator (LDO) VO5_LDO for VVGL_LDO.
The DVDD, VGL and VGL_LDO are used for powering the DDIC (Display-Driver IC).
All output voltages of these converters can be programmed in digital steps through the I2C interface.
The SGM3843 is available in a Green WLCSP-3.3×3.3-64B package.
2.9V to 5.0V Input Supply Voltage Range
Synchronous Boost Converter VO1 (ELVDD)
4.6V to 5.0V Output Voltage with 100mV Steps
4.6V Default Output Voltage
0.65% Accuracy at 4.6V
1200mA Output Current Capability
Synchronous Inverting Buck-Boost Converter VO2 (ELVSS)
-8.0V to -1.0V Output Voltage with 50mV Steps
-4.0V Default Output Voltage
1% Accuracy at -4.0V
1200mA Output Current Capability
Synchronous Boost Converter VO3 (AVDD)
5.7V to 8.0V Output Voltage with 50mV Steps
7.6V Default Output Voltage
0.66% Accuracy at 7.6V
200mA Output Current Capability
Synchronous Buck Converter VO4 (DVDD)
0.7V to 2.1V Output Voltage with 25mV Steps
1.05V Default Output Voltage
0.6% Initial Accuracy at 1.05V
400mA Output Current Capability
Synchronous Inverting Buck-Boost Converter VO5 (VGL)
-4.0V to -12.5V Output Voltage with 100mV Steps
-7V Default Output Voltage
0.8% Accuracy at -7V
30mA Output Current Capability
Low Dropout Linear Regulator VO5_LDO (VGL_LDO)
Fixed 300mV Dropout Voltage
30mA Output Current Capability
Excellent Line Transient Regulation
High Performance Load Regulation
VIN and VOUT Bi-Directional Isolation
I2C Interface
Under-Voltage Lockout (UVLO)
All Channels Soft-Start
All Channels Fast Discharge Function (FD)
All Channels Short Circuit Protection (SCP)
All Channels Over-Current Protection (OCP)
Over-Temperature Protection (OTP)
Overload Protection (OLP)
Start-Up Short Detection (SSD)
VELVSS Start-Up Delay: 5.7ms
Short Circuit and OLP Detection Time: 1ms
Available in a Green WLCSP-3.3×3.3-64B Package
Smartphones & Tablets
Active Matrix OLED Displays
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM3843YG/TR | Active | WLCSP-3.3×3.3-64B | 64 | Yes | Yes | Yes | Yes | MSL1 | -40℃ to +85℃ | View | View | 1-24 units : $5.25/unit 25-99 units : $4.5/unit 100-249 units : $3.75/unit 250-499 units : $3/unit 500-999 units : $2.625/unit 1000-9999 units : $1.95/unit | 3K-9K : 14 days 10K-99K : 28 days 100K-999K : 84 days 1000K and above : 119 days |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
京公网安备11010802046258号