SGM40666AS [SGMICRO]
High-Current Over-Voltage Protector;
| 型号： | SGM40666AS |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | High-Current Over-Voltage Protector |
| 文件： | 总14页 (文件大小：795K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM40666AS/SGM40666BS
High-Current Over-Voltage Protector
GENERAL DESCRIPTION
FEATURES
The SGM40666AS and SGM40666BS are over-voltage
protection devices designed to protect low voltage
systems from damage with a high voltage supply up to
+31VDC and +40VPEAK (10s with 50mA current limit).
The SGM40666AS withstands +90V/-400V while
SGM40666BS can also withstand surges up to +80V/
-400V without damage.
● Wide Power Supply Voltage Range: 2.5V to 28V
● Input Voltage up to 40V with 50mA Current Limit
for 10s Duration
● Integrated Switch On-Resistance: 27mΩ (TYP)
● Wide Adjustable OVLO Threshold Range:
4V to 22V
● Internal Over-Voltage Protection Threshold:
6.79V (TYP)
The integrated 27mΩ (TYP) RON FET allows it to pass
through 4.5A continuous current. The FET is turned off
when the input voltage exceeds the over-voltage
threshold, which can be adjusted between 4V and 22V
with the optional external resistors.
● Surge Immunity
SGM40666AS: Up to +90V/-400V Surge
Immunity
SGM40666BS: Up to +80V/-400V Surge
Immunity
When the OVLO input is set below the external OVLO
select threshold (0.26V TYP), the SGM40666AS and
SGM40666BS automatically choose the internal trip
thresholds that are preset to 6.79V typically. SGMICRO
provides customized OVP threshold options for
22.2V/15.3V/10.5V/6.35V/5.95V. Please contact us if
necessary.
● 32.3V Clamping Circuit Trigger Threshold when
Rising Slope > 4.5V/μs (SGM40666AS)
● 45V Clamping Circuit Trigger Threshold
(SGM40666BS)
● Over-Voltage Shutdown Response: 50ns (TYP)
● Start-Up Debounce Time: 16.5ms
● Soft-Start Function
● Enable Function
The open-drain output (nACOK) indicates a stable
● Thermal Shutdown Protection
● Power Good Flag
power supply between minimum VIN and VOVLO
.
The SGM40666AS and SGM40666BS are available in
a Green WLCSP-1.65×1.24-12B package.
● Available in a Green WLCSP-1.65×1.24-12B
Package
APPLICATIONS
Battery Charging Ports
Mobile Phones
Tablet Computers
SG Micro Corp
NOVEMBER 2022 – REV. A
www.sg-micro.com
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
XXXXX
MDLYG
SGM40666AS WLCSP-1.65×1.24-12B
SGM40666BS WLCSP-1.65×1.24-12B
SGM40666ASYG/TR
SGM40666BSYG/TR
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +85℃
-40℃ to +85℃
XXXXX
G5YYG
MARKING INFORMATION
NOTE: XXXXX = Date Code, Trace Code and Vendor Code.
Date Code - Year
Trace Code
Vendor Code
X X X X X
Y Y Y Y G
Serial Number
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
Voltage Range (with Respect to GND)
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range..................................... 2.5V to 28V (3)
Operating Junction Temperature Range ..... -40℃ to +125℃
IN ..................................................................-0.3V to 31V (1)
IN (Peak for 10s Duration, 50mA Limit) ........-0.3V to 40V (1)
OUT ........................................................-0.3V to VIN + 0.3V
OVLO............................................................... -0.3V to 25V
nACOK, nEN..................................................... -0.3V to 6V
IN, OUT Continuous Current....................................... 4.5A (2)
IN, OUT Peak Current (10ms) ...........................................8A
Package Thermal Resistance
NOTES:
1. Non-frequent repeated peak voltage during the input surge
transient and ESD transient is not subject to this rating value,
which may be higher than 40V in the surge test.
2. Continuous current limit may vary with the circuit board
thermal dissipation condition.
3. If protection discharging is triggered, the discharging
keeps until the supply falls below the hysteresis range.
Continuously force driving during discharging with a voltage
in the hysteresis range can cause overstress and even
damage the device. Supply voltage within the hysteresis
range is not recommended.
WLCSP-1.65×1.24-12B, θJA................................... 105℃/W
WLCSP-1.65×1.24-12B, θJC..................................... 37℃/W
Junction Temperature.................................................+150℃
Storage Temperature Range.......................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
ESD SENSITIVITY CAUTION
HBM................................................................................. 4kV
CDM ................................................................................ 1kV
Air Gap Discharge on IN Pin (IEC61000-4-2)................ 20kV
Contact Discharge on IN Pin (IEC61000-4-2)................ 12kV
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.
OVERSTRESS CAUTION
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.
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
2
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
PIN CONFIGURATION
(TOP VIEW)
4
1
2
3
A
nEN
OUT
OUT
IN
GND
nACOK
OVLO
OUT
IN
GND
GND
B
C
IN
WLCSP-1.65×1.24-12B
PIN DESCRIPTION
PIN
A1
NAME
nEN
FUNCTION
Device Enable Pin. Active low to enable the IN to OUT pass path.
A2, A3, B2
A4, B4, C4
OUT
GND
Output Pin. Internal switch output.
Ground.
Open-Drain Flag Output for Power Good. When the input voltage is stable between the
minimum VIN and VOVLO, nACOK is driven low. nACOK is high impedance if thermal
shutdown occurs.
B1
B3, C2, C3
C1
nACOK
IN
Input and Device Supply Pin. Use a 0.1μF ceramic capacitor near to the device.
Over-Voltage Protection Threshold Adjustment. When the internal threshold is used, set the
OVLO to connect to GND. Connect to a resistor divider network to adjust the OVLO
threshold.
OVLO
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
3
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
ELECTRICAL CHARACTERISTICS
(VIN = 2.5V to 28V, CIN = 0.1μF, TJ = -40℃ to +85℃, typical values are at VIN = 5V, IIN ≤ 3A, TJ = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
VIN
2.5
28
V
Input Supply Current
OVLO Supply Current
IIN
VIN = 5V
75
80
105
110
6.95
μA
IIN_Q
VOVLO = 3V, VIN = 5V, VOUT = 0V
VIN rising
μA
6.63
6.58
1.163
4
6.79
6.70
1.191
Internal Over-Voltage Protection
Threshold
VIN_OVLO
VBG
V
VIN falling
VBG Reference
1.220
22
V
V
Adjustable OVLO Threshold Range
External OVLO Select Threshold
Switch On-Resistance
VOVLO_SELECT
RON
0.24
0.26
27
0.29
37
V
mΩ
μF
pF
nA
V
VIN = 5V, IOUT = 0.5A, TJ = +25℃
VIN = 5V, TJ = +25℃
OUT Load Capacitance
COUT
1000
OVLO Parasitic Capacitance
OVLO Input Leakage Current
IN Leakage Voltage by OVLO
Thermal Shutdown
CP_OVLO
IOVLO
24
TJ = +25℃
-100
100
0.2
VOVLO = 1.3V, TJ = +25℃
VOVLO = 20V, VIN = unconnected, ROVLO = 1MΩ
VIN_LEAK
150
20
℃
℃
Thermal Shutdown Hysteresis
Digital Signal (nACOK, nEN)
nACOK Output Low Voltage
VOL
VI/O = 3.3V, ISINK = 1mA, see Figure 1
0.08
0.32
1
V
VI/O = 3.3V, nACOK de-asserted, TJ = +25℃,
see Figure 1
nACOK Leakage Current
IACOK_LEAK
μA
nEN Input Low Threshold
nEN Input High Threshold
nEN Input Leakage
VLTH
VHTH
0.4
V
V
1.2
InEN_LEAK
1
μA
VIN = 5V, TJ = +25℃
Timing Characteristics
Time from VIN > 2.5V to the time VOUT starts
rising, TJ = +25℃
Debounce Time
Soft-Start Time
tDEB
tSS
16.5
33
ms
ms
ms
Time from VIN > 2.5V to soft-start off,
TJ = +25℃
VIN = 5V, RL = 100Ω, CLOAD = 10μF,
VOUT from 10% to 90%, TJ = +25℃
Switch Turn-On Time
tON
1.6
VIN > VIN_OVLO to VOUT = 80% of VIN, RL = 100Ω,
with 20% overdrive, for the case of using the
internal threshold, TJ = +25℃
Switch Turn-Off Time
tOFF
50
50
ns
ns
VOVLO > VBG with 20% overdrive to output
falling 10%, RL = 100Ω, for the case of using
external threshold, TJ = +25℃
Switch Turn-Off Propagation Delay
tDELAY
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
4
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
TYPICAL PERFORMANCE CHARACTERISTICS
Input Supply Current vs. Input Voltage
OVLO Leakage Current vs. OVLO Pin Voltage
140
120
100
80
4
3
2
TA = +85℃
60
1
TA = +25℃
TA = -40℃
40
0
20
0
-1
1
5
9
13
17
21
25
29
0
1
2
3
4
5
6
7
Input Voltage (V)
OVLO Pin Voltage (V)
Normalized External OVLO Select Threshold
vs. Temperature
Normalized External OVLO Select Threshold
vs. Temperature
1.10
1.06
1.02
0.98
0.94
0.90
1.10
VIN = 8V
VIN = 28V
Normalized to TA = +25℃
Normalized to TA = +25℃
1.06
1.02
0.98
0.94
0.90
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature (℃)
Temperature (℃)
Normalized OVLO Threshold vs. Temperature
1.10
1.06
1.02
0.98
0.94
0.90
Normalized to TA = +25℃
-40
-15
10
35
60
85
Temperature (℃)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
5
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Normalized On-Resistance vs. Output Current
Normalized to 0.1A
Normalized On-Resistance vs. Temperature
2.5
2.0
1.5
1.0
0.5
0.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
Normalized to TA = +25℃
0.1
1.2
2.3
3.4
4.5
5.6
6.7
-40
-15
10
35
60
85
Temperature (℃)
Output Current (A)
Over-Voltage Fault Response
Over-Voltage Fault Response_OVLO
VOVLO
VIN
VOUT
VOUT
VIN = 5V, CIN = 0.1μF,
COUT = 0, ROUT = 100Ω,
V
OVLO = 1V to 1.32V
Time (100μs/div)
Time (20ns/div)
Power-Up Response
Power-Up Response
CL = 1000μF
CL = 220μF
VIN
VIN
VOUT
VOUT
IIN
IIN
Time (5ms/div)
Time (5ms/div)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
6
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
IN-GND 90V Surge Discharge Waveforms
(Off-State)
IN-GND 90V Surge Discharge Waveforms
(On-State)
VIN
VIN
VOUT
VOUT
IIN
IIN
Time (50μs/div)
Time (50μs/div)
IN-GND -400V Surge Discharge Waveforms
(Off-State)
IN-GND -400V Surge Discharge Waveforms
(On-State)
IIN
IIN
VIN
VIN
VOUT
VOUT
Time (100μs/div)
Time (100μs/div)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
7
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
TYPICAL APPLICATION CIRCUIT
Power
Adaptor
Charger
IN
OUT
1μF
0.1μF
TVS
(1)
(1)
SGM40666AS
SGM40666BS
R1
R2
PMIC
VI/O
OVLO
nACOK
Controller
nEN
Enable Control
GND
4.7kΩ
NOTE:
1. Voltage divider networks R1 and R2 are only used for adjustable OVLO. When using the default OVP threshold,
connect OVLO to GND directly.
Figure 1. Typical Application Circuit
FUNCTIONAL BLOCK DIAGRAM
SGM40666AS/SGM40666BS
IN
OUT
Gate Driver
Charge Pump
nEN
Temperature
Logic
nACOK
Faults
Slope
Rate
Detect
&
VBG
Reference
Control
OVLO
OVLO
Select
GND
Figure 2. Block Diagram
SG Micro Corp
NOVEMBER 2022
www.sg-micro.com
8
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
TIMING DIAGRAM
VIN_OVLO
2.5V
IN
tOFF
Thermal
Shutdown
tON
tON
tON
tON
90%
90%
90%
10%
10%
tDEB
10%
tDEB
OUT
tDEB
tDEB
tDEB
tDEB
tSS
tDELAY
VOVLO_EXT
OVLO
nEN
nACOK
NOTE: The waveforms can not be scaled.
Figure 3. Timing Diagram
SURGE UP TEST CIRCUIT
Surge Generator
in Compliance with
IEC 61000-4-5
Specification
5V Power Supply
IN
OUT
1μF
0.1μF
SGM40666AS
SGM40666BS
VI/O
nEN
Enable Control
4.7kΩ
nACOK
OVLO
GND
Figure 4. Surge Up Test Circuit
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
9
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
DETAILED DESCRIPTION
The SGM40666AS and SGM40666BS are designed to
protect low voltage systems from damage with a high voltage
supply up to +31VDC and +40VPEAK (10s with 50mA current
limit). The SGM40666AS withstands +90V/-400V while
SGM40666BS can also withstand surges up to +80V/-400V
without damage. Surge up tests are performed according to
the test circuit in Figure 4. If the input voltage exceeds the
over-voltage threshold, the internal 27mΩ (TYP) low RON FET
is turned off to prevent damage to the protected components.
A built-in 16.5ms (TYP) debounce time prevents turning the
internal FET on falsely during start-up.
external resistor divider determines the VIN_OVLO_EXT. At
present, VIN_OVLO_EXT, VBG, and R1 are known, R2 can be given
by Equation 1:
R
V
= VBG × 1+
1
IN_OVLO_EXT
R2
(1)
This external resistor divider network is completely
independent of the internal resistor divider network.
Note that OVLO pin must not be floating.
Surge Protection
The SGM40666AS integrates a clamping circuit to suppress
the input surge voltage. When VIN voltage rises sharply
(typically > 4.5V/μs) above 32.3V, the internal clamping circuit
will be triggered to discharge the surge energy to the ground.
Device Operation
The SGM40666AS and SGM40666BS have a timing logic
controlled charge pump, which is used as gate driver of the
internal FET. If the internal trip threshold is used, the charge
pump is enabled when VIN < VIN_OVLO, while if external trip
The SGM40666BS discharges the surge energy to the
ground when surge voltage rises above 45V.
threshold is used, it is enabled when VOVLO < VOVLO_EXT
.
The charge pump turns the internal FET on after a 16.5ms
(TYP) debounce delay (see Figure 3), then soft-start function
limits the FET inrush current for another 16.5ms (TYP). Once
Thermal Shutdown Protection
The SGM40666AS and SGM40666BS have the thermal
shutdown protection. If the junction temperature exceeds
+150℃ (TYP), the internal FET turns off. And the devices
exit thermal shutdown if the junction temperature cools down
by 20℃ (TYP).
VIN rises above VOVLO_THRESH, the FET is turned off.
Enable Function
The IC has an enable pin that is used to enable or disable the
device. Pull nEN high to turn off the internal pass FET, while
pull it low to turn on the FET, the IC enters the start-up
routine.
nACOK Output
The device has an open-drain nACOK output that indicates a
stable power source to the host. When the input voltage is
stable between minimum VIN and VOVLO after debounce delay,
nACOK goes to low. A pull-up resistor is set from nACOK to
the host system logic I/O voltage. nACOK is high impedance
if thermal shutdown occurs.
Over-Voltage Lockout (OVLO)
The typical over-voltage lockout (OVLO) thresholds of the
SGM40666AS and SGM40666BS are 6.79V.
If the input voltage exceeds the OVP rising trip level, the
switch will be turned off in about 50ns. The switch will remain
off until VIN falls below the OVP falling trip level.
USB OTG Support
When used in an OTG application, the SGM40666AS and
SGM40666BS can provide power from OUT to IN. Initially, the
OTG voltage applied at OUT will forward bias the power
switch bulk diode and present a voltage drop of approximately
0.7V between OUT and IN. Once the voltage at IN exceeds
the minimum input voltage of 2.5V and after debounce time,
the main power switch will turn fully on, reducing the voltage
drop from OUT to IN significantly.
External Adjustable OVLO
The devices detect the voltage on the OVLO pin to check if an
external divider exists.
If the OVLO pin is connected to GND, the OVLO value set
internally will be applied.
When an external resistor divider network is connected to the
OVLO pin and VOVLO > VOVLO_SELECT (0.26V TYP), then this
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
10
SGM40666AS
SGM40666BS
High-Current
Over-Voltage Protector
APPLICATION INFORMATION
IN Bypass Capacitor
Output Capacitor
Place a 0.1μF ceramic bypass capacitor between IN and
GND pins as close as possible to the device for most
applications. When the power source has significant
inductance because of long lead length, the device clamps
the overshoot because of LC tank circuit.
The soft-start function is provided by the slow turn-on time,
which allows the SGM40666AS and SGM40666BS to charge
an output capacitor (up to 1000μF typically) without shutting
down because of over-current condition.
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (NOVEMBER 2022) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
11
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
WLCSP-1.65×1.24-12B
D
0.22
0.20
12 × Φ
0.40
A1 CORNER
E
0.40
TOP VIEW
RECOMMENDED LAND PATTERN (Unit: mm)
12 × Φd
4
3
2
1
A
B
C
C
A
e
A1
SEATING PLANE
ccc C
e
BOTTOM VIEW
SIDE VIEW
Dimensions In Millimeters
Symbol
MIN
-
MOD
MAX
0.685
0.220
1.675
1.270
0.290
A
A1
D
-
0.180
1.615
1.210
0.230
-
-
E
-
-
d
e
0.400 BSC
0.050
ccc
NOTE: This drawing is subject to change without notice.
SG Micro Corp
TX00303.000
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-1.65×1.24-12B
7″
9.5
1.38
1.80
0.82
4.0
4.0
2.0
8.0
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
7″ (Option)
7″
368
442
227
410
224
224
8
18
SG Micro Corp
www.sg-micro.com
TX20000.000
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