Triple-Output AMOLED Display Power Supply Integrated Circuit IC Chip
● 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 1% Accuracy
Output Voltage Sensing Pin for Path LossCompensation (FBS)
● Synchronous Inverting Buck-Boost Converter(ELVSS)
-5.4V to -1.4V Output Voltage with 100mV Steps
-2.5V Default Output Voltage 1.2% Accuracy at -2.5V
● ELVDD & ELVSS Combined Output CurrentCapability
Up to 800mA at 4.6V/-2.5V (VIN = 3.1V)
Up to 780mA at 4.6V/-2.7V (VIN = 3.1V)
Up to 750mA at 4.6V/-3.0V (VIN = 3.1V)
Up to 630mA at 4.6V/-4.0V (VIN = 3.1V)
Up to 510mA at 4.6V/-5.4V (VIN = 3.1V)
● Synchronous Boost Converter (AVDD)
5.8V to 7.9V Output Voltage with 300mV Steps
6.1V Default Output Voltage
1% Accuracy
100mA Output Current Capability
● VIN and VOUT Bi-Directional Isolation
● Short Circuit Protection (SCP)
● Overload Protection
● Thermal Shutdown
● VELVSS Start-Up Delay: 10ms
● Short Circuit and OLP Detect Time: 1ms
● Available in a Green TQFN-3×3-16L Package
Active Matrix OLED Displays
Pin Configurations
Pin Description
Product Selection Guid
| Part Number |
EL Output Current
Max
(mA)
|
VIN
Min
(V)
|
VIN
Max
(V)
|
Output
Channel Number
(V)
|
Control
Interface
|
Outputs
|
Packag
|
Features |
|---|---|---|---|---|---|---|---|---|
|
SGM38042B
|
100
|
2.7 | 5.5 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-1.51×2.10-15B
|
SIMO, Triple-Output, for Wearable Deivices
|
|
SGM38045
|
70 | 2.7 | 4.8 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-1.2×2.4-17B
|
Inductor-Less, Triple-Output, for Wearable Deivices
|
|
SGM38046
|
90 | 2.7 | 5.5 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-2×2-16B
|
Triple-Output, for Wearable Deivices
|
|
SGM3851A
|
400 | 2.9 | 4.5 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
TQFN-3×3-16L
|
Triple-Output, for Smart Phones
|
|
SGM3836A
|
600 | 2.9 | 4.5 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
TQFN-3×3-16L
|
Triple-Output, for Smart Phones
|
|
SGM3837
|
600 | 2.9 | 5 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-2.0×2.0-25B
|
Triple-Output, for Smart Phones
|
|
SGM3838
|
700 | 2.5 | 4.8 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-2.5×2.5-36B
|
Triple-Output, for Smart Phones & PADs
|
|
SGM3839
|
1200 | 2.5 | 4.8 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-2.90×2.96-49B
|
Triple-Output, for Smart Phones & PADs
|
|
SGM3842
|
1000 | 2.9 | 4.8 | 4 |
1-Wire
|
AVDD/ELVDD/ELVSS/DVDD
|
WLCSP-2.5×2.9-42B
|
Four-Output, for Tandem AMOLED Display Smart Phones & PADs
|
|
SGM3843
|
1200 | 2.9 | 5 | 6 |
I2C
|
AVDD/ELVDD/ELVSS/DVDD/VGL/VGL_LDO
|
WLCSP-3.3×3.3-64B
|
Six-Output, for Smart Phones & PADs
|
|
SGM3843A
|
1200 | 2.9 | 5 | 6 |
1-Wire
|
AVDD/ELVDD/ELVSS/DVDD/VGL/VGL_LDO
|
WLCSP-3.3×3.3-64B
|
Six-Output, for Smart Phones & PADs
|
|
SGM3840
|
1000 | 2.5 | 4.8 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-2.37×2.37-36B
|
Triple-Output, for Smart Phones & PADs
|
|
SGM3837S
|
800 | 2.5 | 5 | 3 |
1-Wire
|
AVDD/ELVDD/ELVSS
|
WLCSP-2×2-25B-A
|
Triple-Output, for Smart Phones & PADs
|
This solution demonstrates the application of integrated circuits in smart phones and tablets. For assistance selecting the right product, please contact our technical support team.
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