SGM3851A [SGMICRO]

Triple-Output AMOLED Display Power Supply;
SGM3851A
型号: SGM3851A
厂家: Shengbang Microelectronics Co, Ltd    Shengbang Microelectronics Co, Ltd
描述:

Triple-Output AMOLED Display Power Supply

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中文:  中文翻译
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SGM3851A  
Triple-Output  
AMOLED Display Power Supply  
Synchronous Inverting Buck-Boost Converter  
(ELVSS)  
GENERAL DESCRIPTION  
The SGM3851A is designed for powering AMOLED  
displays which require VAVDD, VELVDD and VELVSS. The  
device integrates two boost converters, VO1 for VELVDD  
and VO3 for VAVDD, and an inverting buck-boost  
converter VO2 for VELVSS. Output voltages of all the  
three converters can be programmed in digital steps  
through the digital interface control pin (CTRL).  
-5.4V to -1.4V Output Voltage with 100mV Steps  
-2.5V Default Output Voltage  
1.6% Accuracy at -2.5V (±40mV)  
400mA Output Current Capability  
Synchronous Boost Converter (AVDD)  
5.8V to 7.9V Output Voltage with 300mV Steps  
6.1V Default Output Voltage  
1.2% Accuracy  
The SGM3851A is available in a Green TQFN-3×3-16L  
package. It operates over an ambient temperature  
range of -40to +85.  
100mA Output Current Capability  
VIN and VOUT Bi-Directional Isolation  
Short Circuit Protection (SCP)  
Overload Protection  
FEATURES  
Thermal Shutdown  
VELVSS Start-Up Delay: 10ms  
Short Circuit and OLP Detect Time: 1ms  
Available in a Green TQFN-3×3-16L Package  
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  
1.2% Accuracy  
APPLICATIONS  
400mA Output Current Capability  
Output Voltage Sensing Pin for Path Loss  
Compensation (FBS)  
Smartphones & Tablets  
Active Matrix OLED Displays  
TYPICAL APPLICATION  
3
4
VELVDD  
4.6V/400mA  
4.7μH  
VO1  
FBS  
1
VIN = 2.9V to 4.5V  
SW1  
10μF  
4.7μH  
10μH  
10  
13  
VELVSS  
-2.5V/400mA  
11  
15  
SW2  
VO2  
SGM3851A  
SW3  
2×10μF  
10μF  
VAVDD  
6.1V/100mA  
12  
16  
VO3  
PVIN  
AVIN  
3×10μF  
2
5
8
9
PGND1  
PGND2  
AGND  
CT  
Enable Discharge  
FD  
14  
Enable VAVDD  
EN_VO3  
CTRL  
7
6
Enable VELVDD/VELVSS  
Program Device  
Figure 1. Typical Application Circuit  
SG Micro Corp  
DECEMBER 2019 – REV. A. 1  
www.sg-micro.com  
SGM3851A  
Triple-Output AMOLED Display Power Supply  
PACKAGE/ORDERING INFORMATION  
SPECIFIED  
TEMPERATURE  
RANGE  
PACKAGE  
DESCRIPTION  
ORDERING  
NUMBER  
PACKAGE  
MARKING  
PACKING  
OPTION  
MODEL  
3851ATQ  
XXXXX  
SGM3851A  
TQFN-3×3-16L  
SGM3851AYTQ16G/TR  
Tape and Reel, 4000  
-40to +85℃  
MARKING INFORMATION  
NOTE: XXXXX = Date Code and Vendor Code.  
X X X X X  
Vendor Code  
Date Code - Week  
Date Code - Year  
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If  
you have additional comments or questions, please contact your SGMICRO representative directly.  
ABSOLUTE MAXIMUM RATINGS  
OVERSTRESS CAUTION  
PVIN, AVIN, EN_VO3, CTRL, CT, FD, SW1, VO1, FBS  
Voltages (1)........................................................... -0.3V to 6V  
SW3, VO3 Voltages (1) ....................................... -0.3V to 10V  
VO2 Voltage (1) ................................................. -6.5V to 0.3V  
SW2 Voltage (1)................................................. -6.5V to 5.5V  
Package Thermal Resistance  
Stresses beyond those listed in Absolute Maximum Ratings  
may cause permanent damage to the device. Exposure to  
absolute maximum rating conditions for extended periods  
may affect reliability. Functional operation of the device at any  
conditions beyond those indicated in the Recommended  
Operating Conditions section is not implied.  
TQFN-3×3-16L, θJA.................................................... 45/W  
Junction Temperature.................................................+150℃  
Storage Temperature Range........................-65to +150℃  
Lead Temperature (Soldering, 10s)............................+260℃  
ESD Susceptibility  
ESD SENSITIVITY CAUTION  
This integrated circuit can be damaged if ESD protections are  
not considered carefully. SGMICRO recommends that all  
integrated circuits be handled with appropriate precautions.  
Failureto observe proper handlingand installation procedures  
can cause damage. ESD damage can range from subtle  
performance degradation tocomplete device failure. Precision  
integrated circuits may be more susceptible to damage  
because even small parametric changes could cause the  
device not to meet the published specifications.  
HBM.............................................................................4000V  
MM.................................................................................400V  
CDM ............................................................................1000V  
RECOMMENDED OPERATING CONDITIONS  
Operating Ambient Temperature Range ........-40to +85℃  
Operating Junction Temperature Range......-40to +125℃  
DISCLAIMER  
SG Micro Corp reserves the right to make any change in  
NOTE:  
1. All voltages are with respect to network ground pin.  
circuit design, or specifications without prior notice.  
SG Micro Corp  
www.sg-micro.com  
DECEMBER 2019  
2
SGM3851A  
Triple-Output AMOLED Display Power Supply  
PIN CONFIGURATION  
(TOP VIEW)  
16 15 14 13  
SW1  
PGND1  
VO1  
1
2
3
4
12 PVIN  
11 SW2  
10 VO2  
FBS  
9
CTRL  
5
6
7
8
TQFN-3×3-16L  
PIN DESCRIPTION  
PIN  
1
NAME  
SW1  
TYPE  
DESCRIPTION  
O
O
I
VO1 Boost Converter Switching Node.  
2
PGND1  
VO1  
VO1 Boost Converter Power Ground Pin.  
VO1 Boost Converter Output Pin.  
3
4
FBS  
VO1 Boost Converter Output Sense Input Pin.  
Output Discharge Enable/Disable during Shutdown. Logic high level enables the discharge and  
logic low level disables the discharge.  
5
FD  
I
6
CT  
AGND  
EN_VO3  
CTRL  
VO2  
I/O  
I
VO2 Transition Time Control Pin.  
7
Analog Ground Pin.  
8
VO3 Boost Converter Enable Pin.  
9
I
VO1/VO2 Converter Enable Pin.  
10  
11  
12  
13  
14  
15  
16  
O
O
O
O
VO2 Inverting Buck-Boost Converter Output Pin.  
VO2 Inverting Buck-Boost Converter Switching Node.  
VO2 Inverting Buck-Boost Converter Power Supply Input Pin.  
VO3 Boost Converter Output Pin.  
SW2  
PVIN  
VO3  
PGND2  
SW3  
VO3 Boost Converter Power Ground Pin.  
VO3 Boost Converter Switching Node.  
Analog Input Pin.  
AVIN  
Exposed Pad  
Connect this pad to AGND, PGND1 and PGND2.  
NOTE: I: input; O: output; I/O: input or output.  
SG Micro Corp  
www.sg-micro.com  
DECEMBER 2019  
3
SGM3851A  
Triple-Output AMOLED Display Power Supply  
ELECTRICAL CHARACTERISTICS  
(At TA = +25, VIN = 3.7V, VCTRL = VEN_VO3 = VIN, VELVDD = 4.6V, VELVSS = -2.5V, VAVDD = 6.1V, Full = -40to +85, unless  
otherwise noted.)  
PARAMETER  
SYMBOL  
CONDITIONS  
TEMP MIN  
TYP  
MAX  
UNITS  
Supply Current and Thermal Protection  
Input Voltage Range  
VIN  
ISD  
Full  
2.9  
4.5  
1
V
VCTRL = VEN_VO3 = GND,  
VFD = GND or VFD = 3.7V  
Shutdown Current into VIN  
0.1  
µA  
+25  
VIT-  
VIN falling  
2.35  
V
V
+25℃  
+25℃  
Under-Voltage Lockout Threshold (AVIN)  
VIT+  
VIN rising  
2.8  
Thermal Shutdown Temperature  
Thermal Shutdown Hysteresis  
Logic Signals (EN_VO3, CTRL, FD)  
Logic High Level Voltage  
Junction temperature rising  
Junction temperature falling  
135  
10  
VH  
VL  
VIN = 2.9V to 4.5V  
VIN = 2.9V to 4.5V  
Full  
Full  
1.2  
V
V
Logic Low Level Voltage  
0.4  
Pull-Down Resistor (EN_VO3, CTRL)  
RDOWN  
350  
550  
4.6  
750  
kΩ  
+25℃  
Boost Converter (VVO1 = VELVDD  
)
Positive Output 1 Voltage  
VVO1  
4.6  
-1.2  
-1.5  
5.0  
1.2  
1.5  
V
+25℃  
+25℃  
Full  
Positive Output 1 Voltage Variation  
VVO1 = 4.6V, no load  
%
SW1 MOSFET On-Resistance  
SW1 MOSFET Rectifier On-Resistance  
SW1 Switch Current Limit  
RDS(ON)1 IDS = 100mA  
RDS(ON)2 IDS = 100mA  
170  
300  
1
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
mΩ  
ISW1  
fSW1  
VVO1(SCP) Percentage of nominal VVO1  
Inductor valley current  
0.75  
1.3  
1.4  
A
MHz  
%
SW1 Switching Frequency  
IVO1 = 100mA  
1.5  
90  
1.75  
Short Circuit Threshold in Operation  
Threshold of Output Sense with VO1  
Threshold of Output Sense with FBS  
VO1 and FBS Leakage, No Discharge  
Pull-Down Resistance of FBS  
VO1 Discharge Resistance  
VTVO1  
VTFBS  
VVO1 - VFBS increasing  
VVO1 - VFBS decreasing  
300  
200  
0.8  
4
mV  
mV  
µA  
ILEAK_VO1 VFD = GND, VCTRL = GND  
RFBS  
2
MΩ  
Ω
RVO1(DCG) VCTRL = GND, IVO1 = 1mA  
IVO1 = 100mA, VIN = 2.9V to 4.5V  
1mA ≤ IVO1 ≤ 400mA  
30  
Line Regulation  
0.007  
0.27  
%/V  
%/A  
Load Regulation  
Buck-Boost Converter (VVO2 = VELVSS  
)
Negative Output Voltage Range  
VVO2  
-5.4  
-40  
-50  
-2.5  
-1.4  
40  
V
+25℃  
+25℃  
Full  
Negative Output Voltage Regulation  
VVO2 = -2.5V, no load  
mV  
50  
SW2 MOSFET On-Resistance  
SW2 MOSFET Rectifier On-Resistance  
SW2 Switch Current Limit  
RDS(ON)3 IDS = 100mA  
RDS(ON)4 IDS = 100mA  
260  
250  
1.85  
1.5  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
mΩ  
ISW2  
fSW2  
Inductor peak current  
IVO2 = 100mA  
1.6  
1.3  
2.1  
A
SW2 Switching Frequency  
1.75  
MHz  
Short Circuit Threshold in Operation  
VO2 Negative Comparator at Start-Up  
VO2 Leakage, No Discharge  
VO2 Discharge Resistance  
CT Pin Output Impedance  
Voltage rise from nominal VVO2  
500  
-700  
0.1  
VVO2(SCP)  
mV  
ILEAK_VO2 VFD = VCTRL = GND  
RVO2(DCG) VCTRL = GND, IVO2 = 1mA  
RCT  
1
µA  
Ω
150  
300  
50  
kΩ  
mV  
CT Pin Comparator  
CompCT VCT rising  
SG Micro Corp  
www.sg-micro.com  
DECEMBER 2019  
4
SGM3851A  
Triple-Output AMOLED Display Power Supply  
ELECTRICAL CHARACTERISTICS (continued)  
(At TA = +25, VIN = 3.7V, VCTRL = VEN_VO3 = VIN, VELVDD = 4.6V, VELVSS = -2.5V, VAVDD = 6.1V, Full = -40to +85, unless  
otherwise noted.)  
PARAMETER  
SYMBOL  
CONDITIONS  
IVO2 = 100mA, VIN = 2.9V to 4.5V  
1 mA ≤ IVO2 ≤ 400mA  
TEMP MIN  
+25℃  
TYP  
0.003  
0.37  
MAX  
UNITS  
%/V  
Line Regulation  
Load Regulation  
%/A  
+25℃  
Boost Converter (VVO3 = VAVDD  
)
Positive Output 2 Voltage Range  
VVO3  
5.8  
-1.2  
-1.4  
6.1  
7.9  
1.2  
1.4  
V
+25℃  
+25℃  
Full  
Positive Output 2 Voltage Regulation  
VVO3 = 6.1V, no load  
%
SW3 MOSFET On-Resistance  
SW3 MOSFET Rectifier On-Resistance  
SW3 Switch Current Limit  
SW3 Switching Frequency  
Output Current Sensing  
RDS(ON)5 IDS = 100mA  
RDS(ON)6 IDS = 100mA  
500  
900  
0.35  
1.5  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
+25℃  
mΩ  
ISW3  
fSW3  
IOUT  
Inductor peak current  
IVO3 = 30mA  
0.25  
1.3  
0.5  
A
MHz  
mA  
%
1.75  
120  
90  
Short Circuit Threshold in Operation  
VO3 Leakage, No Discharge  
VO3 Discharge Resistance  
Line Regulation  
VVO3(SCP) Percentage of nominal VVO3  
ILEAK_VO3 VFD = GND, VEN_VO3 = GND  
RVO3(DCG) VEN_VO3 = GND, IVO3 = 1mA  
IVO3 = 30mA, VIN = 2.9V to 4.5V  
1mA ≤ IVO3 ≤ 55mA  
2
3
µA  
30  
Ω
0.013  
0.4  
%/V  
%/A  
Load Regulation  
TIMING REQUIREMENTS  
PARAMETER  
Short Circuit Timer  
SYMBOL  
MIN  
TYP  
MAX  
UNITS  
VO1 Short Circuit Detection Time in Start-Up  
VO1 Short Circuit Detection Time in Operation  
VO2 Short Circuit Detection Time in Start-Up  
VO2 Short Circuit Detection Time in Operation  
VO3 Short Circuit Detection Time in Operation  
VO3 Overload Detection Delay  
10  
1
tVO1(SCP)  
10  
1
tVO2(SCP)  
ms  
tVO3(SCP)  
1
tD(OVERLOAD)  
tD(DISCHARGE)  
1
VO2 Discharge Time after CTRL Goes High  
CTRL Interface  
10  
Initialization Time  
tINIT  
tOFF  
tHIGH  
tLOW  
300  
55  
10  
10  
55  
400  
80  
25  
25  
80  
Shutdown Time Period  
30  
2
Pulse High Level Time Period  
μs  
Pulse Low Level Time Period  
2
Data Storage/Accept Time Period  
tSTORE  
30  
tINIT  
tLOW  
tHIGH  
tSTORE  
tOFF  
CTRL  
4.6V  
VELVDD  
VELVSS  
-2.5V  
tVO2(SCP)  
tSET  
-5.2V  
Figure 2. Timing Diagram  
SG Micro Corp  
www.sg-micro.com  
DECEMBER 2019  
5
SGM3851A  
Triple-Output AMOLED Display Power Supply  
TYPICAL PERFORMANCE CHARACTERISTICS  
At TA = +25, VIN = 3.7V, unless otherwise noted.  
VELVDD and VELVSS Combined Efficiency vs. Output Current  
VAVDD Efficiency vs. Output Current  
100  
80  
60  
40  
20  
0
100  
80  
60  
40  
20  
0
VIN = 3.7V  
VIN = 3.7V  
VIN = 2.9V  
VIN = 4.5V  
VIN = 2.9V  
VIN = 4.5V  
VAVDD = 6.1V  
VELVDD = 4.6V, VELVSS = -2.5V  
0
80  
160  
240  
320  
400  
0
0
0
20  
40  
60  
80  
100  
Output Current (mA)  
Output Current (mA)  
VELVDD Line Regulation  
VELVDD Load Regulation  
4.63  
4.625  
4.62  
4.63  
4.625  
4.62  
VIN = 2.9V  
VIN = 4.5V  
IOUT = 1mA  
IOUT = 100mA  
4.615  
4.61  
4.615  
4.61  
VIN = 3.7V  
IOUT = 10mA  
4.605  
4.6  
4.605  
4.6  
4.595  
4.59  
4.595  
4.59  
VELVDD = 4.6V  
VELVDD = 4.6V  
2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5  
50 100 150 200 250 300 350 400  
Input Voltage (V)  
Output Current (mA)  
VELVSS Line Regulation  
VELVSS Load Regulation  
-2.5  
-2.505  
-2.51  
-2.5  
-2.505  
-2.51  
VIN = 4.5V  
VIN = 2.9V  
IOUT = 100mA  
IOUT = 1mA  
-2.515  
-2.52  
-2.515  
-2.52  
VIN = 3.7V  
IOUT = 10mA  
-2.525  
-2.53  
-2.525  
-2.53  
-2.535  
-2.54  
-2.535  
-2.54  
VELVSS = -2.5V  
VELVSS = -2.5V  
2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5  
50 100 150 200 250 300 350 400  
Input Voltage (V)  
Output Current (mA)  
SG Micro Corp  
DECEMBER 2019  
www.sg-micro.com  
6
SGM3851A  
Triple-Output AMOLED Display Power Supply  
TYPICAL PERFORMANCE CHARACTERISTICS (continued)  
At TA = +25, VIN = 3.7V, unless otherwise noted.  
VAVDD Line Regulation  
VAVDD Load Regulation  
6.13  
6.125  
6.12  
6.13  
6.125  
6.12  
VIN = 2.9V  
VIN = 4.5V  
IOUT = 50mA  
IOUT = 1mA  
6.115  
6.11  
6.115  
6.11  
VIN = 3.7V  
IOUT = 10mA  
6.105  
6.1  
6.105  
6.1  
6.095  
6.09  
6.095  
6.09  
VAVDD = 6.1V  
VAVDD = 6.1V  
2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5  
0
10 20 30 40 50 60 70 80 90 100  
Input Voltage (V)  
Output Current (mA)  
ELVDD Converter Switching Frequency  
ELVSS Converter Switching Frequency  
1.6  
1.55  
1.5  
1.6  
1.55  
1.5  
VIN = -5.4V  
VIN = -1.4V  
VIN = -4V  
VIN = -2.5V  
1.45  
1.4  
1.45  
1.4  
1.35  
1.3  
1.35  
1.3  
VELVDD = 4.6V, IOUT = 100mA  
IOUT = 100mA  
2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5  
2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5  
Input Voltage (V)  
Input Voltage (V)  
AVDD Converter Switching Frequency  
VELVDD and VELVSS Combined Maximum Output Current vs. Input Voltage  
1000  
1.6  
1.55  
1.5  
VELVDD = 4.6V, VELVSS = -2.5V  
800  
VELVDD = 4.6V, VELVSS = -3.0V  
600  
1.45  
1.4  
400  
200  
0
VELVDD = 4.6V, VELVSS = -4.0V  
VELVDD = 4.6V, VELVSS = -5.4V  
1.35  
1.3  
VAVDD = 6.1V, IOUT = 30mA  
2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5  
2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5  
Input Voltage (V)  
Input Voltage (V)  
SG Micro Corp  
DECEMBER 2019  
www.sg-micro.com  
7
SGM3851A  
Triple-Output AMOLED Display Power Supply  
TYPICAL PERFORMANCE CHARACTERISTICS (continued)  
At TA = +25, VIN = 3.7V, unless otherwise noted.  
ELVDD (4.6V) Voltage Production Distribution  
ELVSS (-2.5V) Voltage Production Distribution  
25  
20  
15  
10  
5
40  
35  
30  
25  
20  
15  
10  
5
3020 Samples  
1 Production Lot  
3020 Samples  
1 Production Lot  
0
0
ELVDD Voltage (V)  
ELVSS Voltage (V)  
AVDD (6.1V) Voltage Production Distribution  
Startup Sequence  
35  
30  
25  
20  
15  
10  
5
VIN = 3.7V, VEN_VO3 = 3.3V, VCTRL = 3.3V, VFD = VIN,  
VAVDD = 6.1V, VELVDD = 4.6V, VELVSS = -2.5V  
3020 Samples  
1 Production Lot  
5V/div  
5V/div  
5V/div  
VIN  
CTRL  
5V/div  
5V/div  
EN_VO3  
ELVDD  
AVDD  
5V/div  
ELVSS  
200mA/  
div  
IIN  
0
Time (10ms/div)  
AVDD Voltage (V)  
Shutdown Sequence Discharge = ON  
Shutdown Sequence Discharge = OFF  
VIN = 3.7V, VEN_VO3 = 3.3V, VCTRL = 3.3V, VFD = 0,  
VAVDD = 6.1V, VELVDD = 4.6V, VELVSS = -2.5V  
VIN = 3.7V, VEN_VO3 = 3.3V, VCTRL = 2.5V, VFD = VIN,  
VAVDD = 6.1V, VELVDD = 4.6V, VELVSS = -2.5V  
5V/div  
VIN  
EN_VO3  
CTRL  
VIN  
5V/div  
5V/div  
5V/div  
5V/div  
CTRL  
AVDD  
5V/div  
5V/div  
EN_VO3  
ELVDD  
AVDD  
ELVDD  
5V/div  
5V/div  
2V/div  
ELVSS  
5V/div  
5V/div  
ELVSS  
Time (5ms/div)  
Time (10s/div)  
SG Micro Corp  
www.sg-micro.com  
DECEMBER 2019  
8
SGM3851A  
Triple-Output AMOLED Display Power Supply  
TYPICAL PERFORMANCE CHARACTERISTICS (continued)  
At TA = +25, VIN = 3.7V, unless otherwise noted.  
Line Transient No Load  
Line Transient Heavy Load  
VIN  
500mV/  
div  
VIN  
500mV/  
div  
AVDD  
20mV/  
div  
VIN = 3.7V to 4.2V, IELVDD = 0mA,  
ELVSS = 0mA, IAVDD = 0mA  
AVDD  
ELVDD  
ELVSS  
20mV/  
div  
I
VIN = 3.7V to 4.2V, IELVDD = 300mA,  
ELVSS = 300mA, IAVDD = 55mA  
I
20mV/  
div  
ELVDD  
ELVSS  
20mV/  
div  
100mV/  
div  
20mV/  
div  
Time (100μs/div)  
Time (100μs/div)  
ELVDD Load Transient  
ELVSS Load Transient  
VIN = 3.7V, IELVDD = 10mA to 300mA, IELVSS = 0mA,  
AVDD = 0mA  
VIN = 3.7V, IELVDD = 0mA, IELVSS = 10mA to 300mA,  
AVDD = 0mA  
I
I
ELVDD  
100mV/  
div  
ELVSS  
100mV/  
div  
200mA/  
div  
200mA/  
div  
ILOAD  
ILOAD  
Time (20μs/div)  
Time (50μs/div)  
AVDD Load Transient  
VIN = 3.7V, IELVDD = 0mA, IELVSS = 0mA,  
AVDD = 10mA to 50mA  
I
AVDD  
100mV/  
div  
50mA/  
div  
ILOAD  
Time (20μs/div)  
SG Micro Corp  
www.sg-micro.com  
DECEMBER 2019  
9
SGM3851A  
Triple-Output AMOLED Display Power Supply  
DETAILED DESCRIPTION  
Table 1. Programming Table  
VO2  
Transition  
Time  
Rising  
Edges  
VO2  
(VELVSS  
Rising  
Edges  
VO2  
(VELVSS  
Rising  
Edges  
VO3  
(VAVDD  
Rising  
Outputs  
Rising  
Rising  
Edges  
VO1  
(VELVDD)  
)
)
)
Edges Discharge Edges  
controlled  
by FD pin  
controlled  
by CT pin  
0/no pulse  
-2.5V  
21  
-3.4V  
0/no pulse  
6.1V  
0/no pulse  
0/no pulse  
0/no pulse  
4.6V  
1
2
-5.4V  
-5.3V  
-5.2V  
-5.1V  
-5.0V  
-4.9V  
-4.8V  
-4.7V  
-4.6V  
-4.5V  
-4.4V  
-4.3V  
-4.2V  
-4.1V  
-4.0V  
-3.9V  
-3.8V  
-3.7V  
-3.6V  
-3.5V  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
-3.3V  
-3.2V  
-3.1V  
-3.0V  
-2.9V  
-2.8V  
-2.7V  
-2.6V  
-2.5V  
-2.4V  
-2.3V  
-2.2V  
-2.1V  
-2.0V  
-1.9V  
-1.8V  
-1.7V  
-1.6V  
-1.5V  
-1.4V  
42  
43  
44  
45  
46  
47  
48  
49  
7.9V  
7.6V  
7.3V  
7.0V  
6.7V  
6.4V  
6.1V  
5.8V  
50  
51  
ON  
52  
53  
reserved  
reserved  
54  
55  
56  
57  
4.7V  
4.8V  
4.9V  
5.0V  
OFF  
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
tINIT  
tLOW  
tHIGH  
tSTORE  
tOFF  
CTRL  
4.6V  
VELVDD  
VELVSS  
-2.5V  
tVO2(SCP)  
tSET  
-5.2V  
Figure 3. Programming VELVSS  
REVISION HISTORY  
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.  
DECEMBER 2019 ‒ REV.A to REV.A.1  
Page  
Changed Detailed Description section ...............................................................................................................................................................13  
Changes from Original (NOVEMBER 2018) to REV.A  
Page  
Changed from product preview to production data.............................................................................................................................................All  
SG Micro Corp  
www.sg-micro.com  
DECEMBER 2019  
10  
PACKAGE INFORMATION  
PACKAGE OUTLINE DIMENSIONS  
TQFN-3×3-16L  
D
e
N16  
N1  
L
D1  
E
E1  
k
N5  
b
BOTTOM VIEW  
TOP VIEW  
1.7  
0.7  
A
3.6 2.2 1.7  
A1  
A2  
SIDE VIEW  
0.5  
0.24  
RECOMMENDED LAND PATTERN (Unit: mm)  
Dimensions  
In Millimeters  
Dimensions  
In Inches  
Symbol  
MIN  
MAX  
0.800  
0.050  
MIN  
0.028  
0.000  
MAX  
0.031  
0.002  
A
A1  
A2  
D
0.700  
0.000  
0.203 REF  
0.008 REF  
2.900  
1.600  
2.900  
1.600  
3.100  
1.800  
3.100  
1.800  
0.114  
0.063  
0.114  
0.063  
0.122  
0.071  
0.122  
0.071  
D1  
E
E1  
k
0.200 MIN  
0.500 TYP  
0.008 MIN  
0.020 TYP  
b
0.180  
0.300  
0.300  
0.500  
0.007  
0.012  
0.012  
0.020  
e
L
SG Micro Corp  
www.sg-micro.com  
TX00081.000  
PACKAGE INFORMATION  
TAPE AND REEL INFORMATION  
REEL DIMENSIONS  
TAPE DIMENSIONS  
P2  
P0  
W
Q2  
Q4  
Q2  
Q4  
Q2  
Q4  
Q1  
Q3  
Q1  
Q3  
Q1  
Q3  
B0  
Reel Diameter  
P1  
A0  
K0  
Reel Width (W1)  
DIRECTION OF FEED  
NOTE: The picture is only for reference. Please make the object as the standard.  
KEY PARAMETER LIST OF TAPE AND REEL  
Reel Width  
Reel  
Diameter  
A0  
B0  
K0  
P0  
P1  
P2  
W
Pin1  
Package Type  
W1  
(mm)  
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant  
TQFN-3×3-16L  
13″  
12.4  
3.35  
3.35  
1.13  
4.0  
8.0  
2.0  
12.0  
Q2  
SG Micro Corp  
TX10000.000  
www.sg-micro.com  
PACKAGE INFORMATION  
CARTON BOX DIMENSIONS  
NOTE: The picture is only for reference. Please make the object as the standard.  
KEY PARAMETER LIST OF CARTON BOX  
Length  
(mm)  
Width  
(mm)  
Height  
(mm)  
Reel Type  
Pizza/Carton  
13″  
386  
280  
370  
5
SG Micro Corp  
www.sg-micro.com  
TX20000.000  

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