SGM3804 [SGMICRO]
Single Inductor, Positive/Negative Dual Output, Buck/Boost Converter;
| 型号： | SGM3804 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Single Inductor, Positive/Negative Dual Output, Buck/Boost Converter |
| 文件： | 总14页 (文件大小：854K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM3804
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
GENERAL DESCRIPTION
FEATURES
The SGM3804 generates both positive and negative
precision regulated voltage power sources, with a
patent pending control scheme for single inductor dual
output converter. Outputs are programmable in 100mV
steps in 2.4V to 6.4V range, which are commonly used
in drivers for LCD displays and AMOLED displays, as
well as in any other circuits requiring both rails, with
different loading on each rail. The device is equipped
with I2C interface. With input in the range of 2.7V to
5.5V, the device is optimized for loading 100mA in
boost-inverter mode and also works in buck-inverter
mode.
● Single Inductor for Positive & Negative Outputs
● High Efficiency in Wide Output Loading Range
● Outputs Programmable with I2C Interface
● 2.4V to 6.4V Programmable for Both Outputs
● Factory Programmable Default Outputs:
SGM3804-0: VPO = +5.4V/VNO = -5.4V
SGM3804-1: VPO = +4.6V/VNO = -3.5V
SGM3804-2: VPO = +5.0V/VNO = -5.0V
SGM3804-3: VPO = +4.6V/VNO = -2.4V
SGM3804-4: VPO = +6.4V/VNO = -6.4V
● 1.6MHz Switching plus Pulse-Skip Operation
● Configurable Stop Active Discharge
● Slim Package Fits into *65132 Footprint
The SGM3804 is available in a Green WLCSP-
1.7×1.51-12B package. It operates over an ambient
temperature range of -40℃ to +85℃.
APPLICATIONS
AMOLED/LCD Smart-Phones/Pads/Media-Players
Wearable Device Display/Audio
AFE with Positive & Negative Rails
TYPICAL APPLICATION
L
4.7µH
SWN
ENN
SWP
VIN
Enable
Enable
2.7V ~ 5.5V
2.4V ~ 6.4V
-2.4V ~ -6.4V
PO
NO
ENP SGM3804
SCL
I2C I/F
I2C I/F
SDA
CN
CP
CIN
PG
AG
10µF
10µF
22µF
Figure 1. Typical Application Circuit
SG Micro Corp
OCTOBER 2016 –REV. A. 1
www.sg-micro.com
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
PACKAGE/ORDERING INFORMATION
SPECIFIED
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
TEMPERATURE
RANGE
XXXXX
G0AYG
SGM3804-0
SGM3804-1
SGM3804-2
SGM3804-3
SGM3804-4
WLCSP-1.7×1.51-12B
SGM3804-0YG/TR
SGM3804-1YG/TR
SGM3804-2YG/TR
SGM3804-3YG/TR
SGM3804-4YG/TR
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
XXXXX
G16YG
WLCSP-1.7×1.51-12B
WLCSP-1.7×1.51-12B
WLCSP-1.7×1.51-12B
WLCSP-1.7×1.51-12B
XXXXX
G54YG
XXXXX
G55YG
XXXXX
G56YG
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
conditions beyond those indicated in the Recommended
VCC to GND.......................................................... -0.3V to 6V
Operating Conditions section is not implied.
Junction Temperature.................................................+150℃
Storage Temperature Range........................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
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.
ESD Susceptibility
HBM .....................................................................................4000V
MM ......................................................................................... 400V
CDM.....................................................................................1000V
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range........................................2.7V to 5.5V
Environmental Temperature Range................-40℃ to +85℃
Junction Temperature Range .......................-40℃ to +125℃
OVERSTRESS CAUTION
Stresses beyond those listed in Absolute Maximum Ratings
DISCLAIMER
SG Micro Corp reserves the right to make any change in
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
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
2
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
PIN CONFIGURATION
(TOP VIEW)
1
2
3
ENN
NO
SCL
SDA
AG
NC
A
B
C
D
ENP
VIN
PG
SWP
PO
SWN
WLCSP-1.7×1.51-12B
PIN DESCRIPTION
PIN
A1
A2
A3
B1
B2
B3
C1
C2
C3
D1
D2
D3
NAME
ENN
NO
I/O
I
FUNCTION
Enable for Negative-Rail Output.
Negative-Rail Output.
No Connection.
O
I
NC
ENP
SCL
PG
I
Enable for Positive-Rail Output.
I²C Interface Clock Signal Pin.
Power Ground.
I
–
VIN
–
Supply Input.
SDA
SWP
SWN
AG
I/O
O
O
–
I²C Interface Data Signal Pin.
Switch Node for Powering the Positive-Rail. Connect this pin to one end of power inductor.
Switch Node for Powering the Negative-Rail. Connect this pin to the other end of power inductor.
Analog Ground.
PO
O
Positive-Rail Output.
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
3
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
FUNCTIONAL BLOCK DIAGRAM
L
4.7μH
SGM3804
KPL
KPH
PO
NO
PG
D3
A2
B3
2.4V ~ 6.4V
KNH
KNL
CIN
22μF
VIN
C1
-2.4V ~ -6.4V
CP
10μF
EAP
2.7V ~ 5.5V
PWM
Timing
Control
NC
ENP
ENN
SDA
SCL
A3
B1
A1
C2
B2
CN
10μF
Σ
AG
EAN
D2
VNS
VPS
Serial I/F
Voltage Reference
Voltage Settings
Ramp Control
Active Discharge Circuit
Bleeding Circuit
Figure 2. SGM3804 Functional Block Diagram
RECOMMENDED APPLICATION CIRCUIT
L
4.7µH
SWN
ENN
SWP
VIN
Enable
Enable
2.7V ~ 5.5V
5.4V/100mA
-5.4V/100mA
PO
NO
ENP SGM3804
SCL
I2C I/F
I2C I/F
SDA
CN
CP
CIN
22µF
PG
AG
10µF
10µF
Figure 3. Recommended Application Circuit
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
4
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
ELECTRICAL CHARACTERISTICS
(Test at Full = -40℃ to +85℃, TA = +25℃, VIN = 3.7V, ENP = ENN = VIN, unless otherwise specified noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
General Features
Input Voltage Range
VIN
2.7
5.5
V
V
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
Under-Voltage Lockout Threshold
VUVLO
VIN falling
2.2
0.4
2.65
0.55
VIN = 3.7V, no switching
VIN = 3.7V, switching
VIN = 3.7V, ENP = ENN = GND
VIN = 3.7V
Supply Current with No Load
IS
mA
0.78
0.4
Shutdown Current
IOFF
tBLANK
fSW
1
μA
ms
MHz
A
Power-On Blanking Time
Switching Frequency
40
VIN = 3.7V
1.48
1.3
2.4
-60
-60
1.6
1.72
1.85
6.4
60
Inductor Peak Current
Positive Output Voltage Range
IPEAK
VIN = 3.7V
1.55
VPO
V
VPO_ACC_54
VIN = 3.7V, VPO = +5.4V
mV
mV
Ω
Positive Output Voltage Accuracy
VPO_ ACC _35 VIN = 3.7V, VPO = +3.5V
60
Discharge Resistor of Positive Output
Discharge Time of Positive Output
Negative Output Voltage Range
RDP
50
10
tDISP
ms
V
VNO
-6.4
-65
-60
-2.4
65
VNO_ ACC _54 VIN = 3.7V, VNO = -5.4V
mV
mV
Ω
Negative Output Voltage Accuracy
VNO_ ACC _35 VIN = 3.7V, VNO = -3.5V
60
Discharge Resistor of Negative Output
Discharge Time of Negative Output
LOGIC ENN, ENP, SCL, SDA
Low Level Input Voltage
RDN
50
10
tDISN
ms
VIL
VIH
REN
VIN = 2.7V to 5.5V
VIN = 2.7V to 5.5V
Full
Full
0.4
V
V
High Level Input Voltage
1.05
ENN and ENP Pull-Down Resistors
200
kΩ
+25℃
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
5
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
I2C INTERFACE TIMING CHARACTERISTICS (1)
PARAMETER
SYMBOL
CONDITIONS
Standard mode
TEMP
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
MIN
TYP
MAX
100
UNITS
kHz
kHz
μs
μs
μs
ns
SCL Clock Frequency
fSCL
Fast mode
400
Standard mode
Fast mode
4.7
1.3
LOW Period of the SCL Clock
HIGH Period of the SCL Clock
tLOW
tHIGH
tBUF
Standard mode
Fast mode
4.0
600
Standard mode
Fast mode
4.7
μs
μs
μs
ns
Bus Free Time between a STOP and a START
Conditions
1.3
Standard mode
Fast mode
4.0
Hold Time for a Repeated START Condition
Setup Time for a Repeated START Condition
Data Setup Time
thd;STA
tsu;STA
tsu;DAT
thd;DAT
tRCL1
tRCL
600
Standard mode
Fast mode
4.7
μs
ns
600
Standard mode
Fast mode
250
ns
100
ns
Standard mode
Fast mode
0.05
3.45
0.9
μs
μs
ns
Data Hold Time
0.05
Standard mode
Fast mode
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
4.0
1000
1000
1000
300
Rise Time of SCL Signal after a Repeated
START Condition and after an Acknowledge Bit
ns
Standard mode
Fast mode
ns
Rise Time of SCL Signal
Fall Time of SCL Signal
Rise Time of SDA Signal
Fall Time of SDA Signal
ns
Standard mode
Fast mode
300
ns
tFCL
300
ns
Standard mode
Fast mode
1000
300
ns
tRDA
ns
Standard mode
Fast mode
300
ns
tFDA
300
ns
Standard mode
Fast mode
μs
ns
Setup Time for STOP Condition
Capacitive Load for SDA and SCL
tsu;STO
CB
600
0.4
nF
NOTE:
1. Industry standard I2C timing characteristics according to I2C-Bus Specification. Not tested in production.
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
6
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
RECOMMENDED COMPONENTS OF TEST CIRCUITS
COMPONENT
COMPONENT
10μF/08055C106KAT2A
22μF/C2012X7R1H226KT
INDUCTOR
SLF7055T-4R7N3R1-3PF
CAPACITOR
TYPICAL PERFORMANCE CHARACTERISTICS
TA = +25℃, VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, unless otherwise noted.
Light Load
Heavy Load
VPO
VPO
VNO
VNO
IL
IL
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 1mA
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 70mA
Time (400ns/div)
Time (10μs/div)
Load Transient
Line Transient
VPO
VPO
VNO
VNO
VIN
ILOADPN
VIN = 2.8V to 4.5V, VPO = +5.4V, VNO = -5.4V,
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V,
I
LOADPN = 40mA
I
LOADPN = 10mA to 70mA
Time (1ms/div)
Time (100μs/div)
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
7
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25℃, VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, unless otherwise noted.
Power-Up Sequencing
Power-Up Sequencing
ENP
ENN
ENP
ENN
VPO
VNO
VPO
VNO
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 0mA
Time (1ms/div)
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 0mA
Time (10ms/div)
Power-Down Sequencing
Power-Down Sequencing
ENP
ENN
ENP
ENN
VPO
VNO
VPO
VNO
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 0mA
Time (2ms/div)
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 0mA
Time (10ms/div)
Inrush Current
Inrush Current
ENP
ENN
ENP/
ENN
VPO
VNO
VPO
VNO
IL
IL
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 0mA
Time (2ms/div)
VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, ILOADPN = 0mA
Time (2ms/div)
SG Micro Corp
OCTOBER 2016
www.sg-micro.com
8
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25℃, VIN = 3.7V, VPO = +5.4V, VNO = -5.4V, unless otherwise noted.
Positive Output Voltage vs. Output Current
Negative Output Voltage vs. Output Current
5.44
5.43
5.42
5.41
5.40
5.39
5.38
5.37
5.36
-5.36
-5.37
-5.38
-5.39
-5.40
-5.41
-5.42
-5.43
-5.44
0
10 20 30 40 50 60 70 80 90 100
Output Current (mA)
0
10 20 30 40 50 60 70 80 90 100
Output Current (mA)
Positive Output Voltage vs. Input Voltage
Negative Output Voltage vs. Input Voltage
5.43
5.42
5.41
5.40
5.39
5.38
5.37
-5.37
-5.38
-5.39
-5.40
-5.41
-5.42
-5.43
ILOADPN = 60mA
ILOADPN = 60mA
4.5 5.5
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
5
Input Voltage (V)
Input Voltage (V)
Efficiency vs. Output Current
VIN = 4.5V
Efficiency vs. Output Current
VIN = 4.5V
90
90
85
80
75
70
65
60
55
50
85
80
75
70
65
60
55
50
VIN = 3.7V
VIN = 3.7V
VIN = 2.8V
VIN = 2.8V
VPO = 5.4V, VNO = -2.7V, L = 4.7μH
VPO = +5.4V, VNO = -5.4V, L = 4.7μH
0
20
40
60
80
100
0
20
40
60
80
100
Output Current (mA)
Output Current (mA)
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
9
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
CONTROLS AND LOGIC DIAGRAMS
SLAVE ADDR.
(3Eh)
DATA for
REG.(n)
DATA for
REG.(n+1)
DATA for
REG.(last)
S
R/W
A
REG. ADDR(n).
A
A
A
P
0: WRITE
1: READ
S: START condition
A: Acknowledge
P: STOP condition
Figure 4. I2C Transfer Format Register Address Auto-Increment
SLAVE ADDR.
(3Eh)
REG. ADDR.
(00h, 01h, 03h)
S
R/W
A
A
DATA
P
0: WRITE
1: READ
S: START condition
A: Acknowledge P: STOP condition
Figure 5. I2C Transfer Format Writing into a Single Register
Register Address Mapping
P: Programmable default value.
BIT SYMBOLS AND DEFAULTS [7:0]
REG. ADDR.
D7
D6
D5
Bit5P
P
D4
Bit4P
P
D3
Bit3P
P
D2
Bit2P
P
D1
Bit1P
P
D0
Bit0P
P
0x00
0x01
0x03
Bit5N
P
Bit4N
P
Bit3N
P
Bit2N
P
Bit1N
P
Bit0N
P
ADD50
0
DISP
1
DISN
1
NOTE: Spaces left blank are not used, which could be filled with any value when programming.
Registers and Bits Descriptions
P: factory preset, W: write only bits, R/ : free read or write bits. Blank for no predictable status or not care.
W
REG.
0x00
0x00
0x00
0x00
0x00
0x00
0x01
0x01
0x01
0x01
0x01
0x01
SYMBOL BIT DEFAULT TYPE
DESCRIPTION
Bit5P
Bit4P
Bit3P
Bit2P
Bit1P
Bit0P
Bit5N
Bit4N
Bit3N
Bit2N
Bit1N
Bit0N
D5
D4
D3
D2
D1
D0
D5
D4
D3
D2
D1
D0
P
P
P
P
P
P
P
P
P
P
P
P
W
W
W
W
W
W
W
W
W
W
W
W
Voltage code bit5 for positive rail.
Voltage code bit4 for positive rail.
Voltage code bit3 for positive rail.
Voltage code bit2 for positive rail.
Voltage code bit1 for positive rail.
Voltage code bit0 for positive rail.
Voltage code bit5 for negative rail.
Voltage code bit4 for negative rail.
Voltage code bit3 for negative rail.
Voltage code bit2 for negative rail.
Voltage code bit1 for negative rail.
Voltage code bit0 for negative rail.
0: Keep the coded voltage specified with <Bit5N:Bit0N>;
1: Shift the negative rail voltage 50mV lower than the coded value.
0x03
ADD50
D2
0
W
0x03
0x03
DISP
DISN
D1
D0
1
1
W
W
0: Disable positive rail discharge; 1: Enable positive rail discharge.
0: Disable negative rail discharge; 1: Enable negative rail discharge.
SG Micro Corp
www.sg-micro.com
OCTOBER 2016
10
Single Inductor, Positive/Negative
Dual Output, Buck/Boost Converter
SGM3804
CONTROLS AND LOGIC DIAGRAMS (continued)
Voltage Codes to Voltage Value Mapping
Negative
Voltage
(V)
Positive
Voltage
(V)
Negative
Voltage
(V)
Positive
Voltage
(V)
Negative
Voltage
(V)
Positive
Voltage
(V)
Codes (1)
Codes (1)
Codes (1)
18h
17h
16h
15h
14h
13h
12h
11h
10h
0Fh
0Eh
0Dh
0Ch
0Bh
-6.4
-6.3
-6.2
-6.1
-6.0
-5.9
-5.8
-5.7
-5.6
-5.5
-5.4
-5.3
-5.2
-5.1
6.4
6.3
6.2
6.1
6.0
5.9
5.8
5.7
5.6
5.5
5.4
5.3
5.2
5.1
0Ah
09h
08h
07h
06h
05h
04h
03h
02h
01h
00h
2Fh
2Eh
2Dh
-5
5
2Ch
2Bh
2Ah
29h
28h
27h
26h
25h
24h
23h
22h
21h
20h
-3.6
-3.5
-3.4
-3.3
-3.2
-3.1
-3.0
-2.9
-2.8
-2.7
-2.6
-2.5
-2.4
3.6
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
-4.9
-4.8
-4.7
-4.6
-4.5
-4.4
-4.3
-4.2
-4.1
-4.0
-3.9
-3.8
-3.7
4.9
4.8
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
NOTE:
1. CODES = <Bit5P:Bit0P> = <Bit5N:Bit0N> with I2C interface.
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
OCTOBER 2016 ‒ REV.A to REV.A.1
Page
Changed Electrical Characteristics section..........................................................................................................................................................5
Changed Recommended Components of Test Circuits section............................................................................................................................7
Changes from Original (JANUARY 2016) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
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OCTOBER 2016
11
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
WLCSP-1.7×1.51-12B
NOTE: All linear dimensions are in millimeters.
SG Micro Corp
TX00106.000
www.sg-micro.com
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
WLCSP-1.7×1.51-12B
7″
9.5
1.70
2.00
0.80
4.0
4.0
2.0
8.0
Q1
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
7″ (Option)
7″
368
442
227
410
224
224
8
18
SG Micro Corp
www.sg-micro.com
TX20000.000
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