SGM41566 [SGMICRO]
Linear Regulation Battery Charger;
| 型号： | SGM41566 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Linear Regulation Battery Charger 电池 |
| 文件： | 总21页 (文件大小：940K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM41566
Linear Regulation Battery Charger
GENERAL DESCRIPTION
FEATURES
The SGM41566 is designed for charging low capacity
battery cell with factory-programmable current
programmable in the range of 50mA to 750mA from
loosen regulated power source. The device features
● Loosen Regulated Power Input
● Battery Voltages Option:
25mV Raster in 3.5V to 4.8V Range
● Charging Current Option:
low
drop-out
constant-current
constant-voltage
50mA Raster in 50mA to 750mA Range
● 5% to 25% Residual End-of-Charge Option
● Weak Battery Pre-Charge Option
● Voltage Fold-Back Safe Power Retaining
● NTC Temperature Sensing for Protection
● Floating Charging Protection
charging, weak battery pre-charging, voltage fold-back
safe retaining, floating charging protection and system
start-up pre-charge, with NTC sensing protection.
The SGM41566 is available in a Green TDFN-2×2-8AL
package. It operates in -40℃ to +125℃ junction
temperature.
● Start-Up Charging for 12.5ms
● 650ms Power Recycle Certification
● Full Charging Power-Up at Low Voltage
● Pre-Charging Power-Up at Normal Voltage
● Available in a Green TDFN-2×2-8AL Package
APPLICATIONS
Low Capacity Rechargeable Battery Powered Applications
TYPICAL APPLICATION
SGM41566
SGM41566
8
7
6
5
BAT
NC
IN
NC
1
2
3
4
IN
1
BAT
8
B
CIN
1μF
CBAT
4.7μF
GND
TSEN
3
GND
4
NC
NC
TSEN
GND
Load
RNTC
NC 2,5,6,7
TDFN-2×2-8AL
Figure 1. Typical Application Circuit
SG Micro Corp
www.sg-micro.com
OCTOBER 2022 – REV. A
SGM41566
Linear Regulation Battery Charger
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
MDV
XXXX
SGM41566-350C55 TDFN-2×2-8AL
SGM41566-360F41 TDFN-2×2-8AL
SGM41566-360N21 TDFN-2×2-8AL
SGM41566-365A33 TDFN-2×2-8AL
SGM41566-365A41 TDFN-2×2-8AL
SGM41566-365O12 TDFN-2×2-8AL
SGM41566-365O22 TDFN-2×2-8AL
SGM41566-405A14 TDFN-2×2-8AL
SGM41566-405A22 TDFN-2×2-8AL
SGM41566-405A33 TDFN-2×2-8AL
SGM41566-405A55 TDFN-2×2-8AL
SGM41566-405D11 TDFN-2×2-8AL
SGM41566-405D22 TDFN-2×2-8AL
SGM41566-405D33 TDFN-2×2-8AL
SGM41566-405D44 TDFN-2×2-8AL
SGM41566-405L21 TDFN-2×2-8AL
SGM41566-405N21 TDFN-2×2-8AL
SGM41566-415J11 TDFN-2×2-8AL
SGM41566-415L21 TDFN-2×2-8AL
SGM41566-420B04 TDFN-2×2-8AL
SGM41566-420J04 TDFN-2×2-8AL
SGM41566-420O22 TDFN-2×2-8AL
SGM41566-435C33 TDFN-2×2-8AL
SGM41566-350C55XTDE8G/TR
SGM41566-360F41XTDE8G/TR
SGM41566-360N21XTDE8G/TR
SGM41566-365A33XTDE8G/TR
SGM41566-365A41XTDE8G/TR
SGM41566-365O12XTDE8G/TR
SGM41566-365O22XTDE8G/TR
SGM41566-405A14XTDE8G/TR
SGM41566-405A22XTDE8G/TR
SGM41566-405A33XTDE8G/TR
SGM41566-405A55XTDE8G/TR
SGM41566-405D11XTDE8G/TR
SGM41566-405D22XTDE8G/TR
SGM41566-405D33XTDE8G/TR
SGM41566-405D44XTDE8G/TR
SGM41566-405L21XTDE8G/TR
SGM41566-405N21XTDE8G/TR
SGM41566-415J11XTDE8G/TR
SGM41566-415L21XTDE8G/TR
SGM41566-420B04XTDE8G/TR
SGM41566-420J04XTDE8G/TR
SGM41566-420O22XTDE8G/TR
SGM41566-435C33XTDE8G/TR
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
MDR
XXXX
07B
XXXX
074
XXXX
MDU
XXXX
MDW
XXXX
MDM
XXXX
MDT
XXXX
04Z
XXXX
051
XXXX
054
XXXX
04Y
XXXX
050
XXXX
052
XXXX
053
XXXX
MDY
XXXX
01Z
XXXX
075
XXXX
MDX
XXXX
076
XXXX
MDZ
XXXX
077
XXXX
078
XXXX
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
2
SGM41566
Linear Regulation Battery Charger
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
MDQ
XXXX
SGM41566-440D11 TDFN-2×2-8AL
SGM41566-440O22 TDFN-2×2-8AL
SGM41566-440D11XTDE8G/TR
SGM41566-440O22XTDE8G/TR
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +125℃
-40℃ to +125℃
079
XXXX
NOTE: Contact Factory if other charge voltage and/or charge current are desired.
MARKING INFORMATION
NOTE: XXXX = Date Code, Trace Code and Vendor Code.
Serial Number
Y Y Y
X X X X
Vendor Code
Trace Code
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.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
3
SGM41566
Linear Regulation Battery Charger
ABSOLUTE MAXIMUM RATINGS
OVERSTRESS CAUTION
IN to GND .......................................................... -0.3V to 28V
IN Clamp Current or Voltage (1)......................... 10mA or 28V
BAT to GND (When VIN > VBAT) ......................... -0.3V to 20V
BAT to GND (When VIN ≤ VBAT) ........................ -0.3V to 4.8V
TSEN to GND ...................................................... -0.3V to 6V
TSEN Clamp Current or Voltage (1).................... 0.3mA or 6V
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.
TDFN-2×2-8AL, θJA.................................................. 95℃/W
TDFN-2×2-8AL, θJB.................................................. 47℃/W
TDFN-2×2-8AL, θJC(TOP) ........................................... 84℃/W
TDFN-2×2-8AL, θJC(BOT) ............................................. 9℃/W
Junction Temperature.................................................+150℃
Storage Temperature Range.......................-65℃ to +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.............................................................................8000V
CDM ............................................................................1000V
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range......................................2.9V to 19.5V
IN Clamp Current or Voltage (1)...................... 10mA or 19.5V
TSEN Clamp Current or Voltage (1)................. 0.3mA or 5.5V
Input Effective Capacitance, CIN ....................0.1μF to 12μF
Output Effective Capacitance, CBAT ...................1μF to 12μF
Operating Junction Temperature Range......-40℃ to +125℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
NOTE:
1. The current limit and voltage limit are set for those values
which applies onto the IN or TSEN pin current and voltage
source for 10 minutes and should not cause any change to
key operation parameters.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
4
SGM41566
Linear Regulation Battery Charger
SUFFIX CODE FOR CHARGE VOLTAGE AND CHARGE CURRENT
Surfix: vvvZmn
End-of-Charge Current Ratio
Pre-Charge Current Ratio
Charge Current Code
Charge Voltage Code
Model: SGM41566-vvvZmn
Pre-Charge Ratio
Charge Current
(Option Code "Z")
Charge Voltage (Option Code "vvv")
(to Charge Current)
(Option Code "m")
Code
350
355
360
365
370
375
380
385
390
395
400
405
410
415
420
425
430
433
435
Voltage (V)
3.500
3.550
3.600
3.650
3.700
3.750
3.800
3.850
3.900
3.950
4.000
4.050
4.100
4.150
4.200
4.250
4.300
4.325
4.350
Code
438
440
443
445
448
450
453
455
458
460
463
465
468
470
473
475
478
480
Voltage (V)
4.375
4.400
4.425
4.450
4.475
4.500
4.525
4.550
4.575
4.600
4.625
4.650
4.675
4.700
4.725
4.750
4.775
4.800
Code
Current (mA)
50
Code
Current Ratio (%)
A
B
C
D
E
F
0
1
2
3
4
5
No pre-charge
100
5
150
10
15
20
25
200
250
300
G
H
I
350
End-of-Charge Ratio
(to Charge Current)
(Option Code "n")
400
450
J
500
Code
Current Ratio (%)
K
L
550
1
2
3
4
5
5
600
10
15
20
25
M
N
O
650
700
750
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
5
SGM41566
Linear Regulation Battery Charger
PIN CONFIGURATION
(TOP VIEW)
8
7
BAT
NC
IN
1
2
NC
GND
6
5
NC
NC
TSEN
GND
3
4
TDFN-2×2-8AL
PIN DESCRIPTION
PIN
NAME
TYPE (1)
FUNCTION
Charge Power Input, for Powering this Device and Feeding to the Charge Output. The
capacitor with effective capacitance in the range of 0.1μF to 12μF is recommended. It
should be placed close to this pin for decoupling.
1
IN
P
Temperature Sensing and Enable Input. The external connection to this pin is checked,
once power input voltage is in the effective range by feeding current (38.6μA) out of the
pin. If the pin voltage is less than VENL (102mV), it is considered as being grounded. The
charging function is disabled while the feeding current is reduced to about 25.5μA. If the
pin voltage is higher than VENH (2.68V), charging function is enabled. If the pin voltage is
between VENL and VENH, it is considered that the NTC thermistor is connected, and the
ground resistance is evaluated for temperature safe charging. In this case, charging is
allowed, only when the pin voltage is within the range of hot threshold resistance related
3
TSEN
IO
voltage VHOT to cold threshold related voltage VCOLD
.
The feeding current biases the pin voltage to be higher than VCOLD but less than VENH. If
pin voltage in this range is found, it is considered to be excessive cold condition or NTC
connection open, charge function is disabled.
4
8
GND
BAT
G
O
Ground of the Circuit.
Output to the Battery and/or System Load for Charging and/or Powering the System Load.
The output decoupling capacitor with effective capacitance in the range of 1μF to 12μF is
recommended. The pin sinks about 4μA if the pin voltage is higher than charging voltage,
and the pin sinks about 1.5mA if output clamp is triggered.
2, 5, 6, 7
NC
NC
—
No Internal Connection.
Exposed
Pad
Exposed Pad. Exposed pad is internally connected to GND. Connect it to a large ground
plane to maximize thermal dissipation.
GND
NOTE:
1. P = Power, IO = Input and Output, G = Ground, O = Output, NC = No Connection.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
6
SGM41566
Linear Regulation Battery Charger
ELECTRICAL CHARACTERISTICS
(VIN = (VCHG(NOM) + 0.5V) or 5V (whichever is greater), VTSEN = 0.4V, TJ = -40℃ to +125℃, typical values are at TJ = +25℃,
unless otherwise noted.)
PARAMETER
SYMBOL
VIN
CONDITIONS
MIN
2.9
3.5
50
TYP
MAX
19.5
4.8
UNITS
V
Input Voltage Range
Charge Voltage Range
Charge Current Range
Input Clamp Voltage
Input Clamp Current
Pass On-Resistance
VCHG
ICHG
VCHG option range
V
ICHG option range
750
22
mA
V
VOV
IIN = 10mA
20
21
26
IOV
VIN = 22V
18
33
mA
Ω
RON
IIN = 90% × ICHG, VBAT = 3V, ICHG ≥ 200mA
0.6
1.1
V
BAT = 95% × VCHG, IN floating,
1
1
3
8
8
TJ = -40℃ to +85℃
VBAT = 95% × VCHG, VTSEN = 0V,
TJ = -40℃ to +85℃
BAT Leakage
Input Current
ISTANDBY
μA
μA
VBAT = 95% × VCHG, TSEN floating,
TJ = -40℃ to +85℃
2.4
V
TSEN = 0V, charging disabled
66
80
95
IQ
VTSEN = 5V, charging terminated
VTSEN = 0.4V, charging terminated
125
180
125
0.4% ×
IBAT
In-Charging Current
IGND
VBAT = 90% × VCHG, GND current during charge
mA
V
VUVLOr
VUVLOf
VOS
VIN rising
2.65
2.33
35
2.74
2.42
80
2.82
2.50
120
Under-Voltage Lockout Thresholds
VIN falling
IN-BAT Offset Voltage
IIN = 0.3mA to 80mA, VBAT = 90% × VCHG
mV
mV
VBAT = 3V, ICHG ≤ 200mA,
charge current rise to 95% × ICHG
IN-BAT Forward Threshold Voltage (1)
VDH
130
260
IN-BAT Reverse Threshold Voltage
BAT Discharge Current
VDL
22
1.5
mV
mA
V
IOV_BAT
VBAT_ACT
VBAT = 104% × VCHG
1
2
BAT Activation Voltage Threshold
Normal Charge, Charge Termination
Charge Voltage
During the active charge time
2.74
Option voltage raster step
25
mV
mV
-20
-25
-32
1.5
20
25
TJ = +25℃
VCHG
Charge Voltage Accuracy
IBAT = 1mA
TJ = +2℃ to +43℃
TJ = -40℃ to +85℃
28
Floating Drop Ratio
Recharge Drop Ratio
Pre-Charge Voltage Ratio
Charge Current
VFCHG/VCHG Percentage drop to the VCHG
VRECHG/VCHG Percentage drop to the VCHG
VPRECHG/VCHG Percentage to the VCHG
Option current raster step
2
4
2.5
5.2
67
%
%
2.6
62.5
65
50
%
mA
-8
-10
-5
8
10
5
TJ = +25℃
V
BAT = 90% × VCHG
,
%
%
I
CHG < 150mA
ICHG
TJ = -40℃ to +85℃
TJ = +25℃
Charge Current Accuracy
VBAT = 90% × VCHG
CHG ≥ 150mA
,
I
-7
7
TJ = -40℃ to +85℃
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
7
SGM41566
Linear Regulation Battery Charger
ELECTRICAL CHARACTERISTICS (continued)
(VIN = (VCHG(NOM) + 0.5V) or 5V (whichever is greater), VTSEN = 0.4V, TJ = -40℃ to +125℃, typical values are at TJ = +25℃,
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Normal Charge, Charge Termination
Ratio = 5%
2.8
7.0
5
10
7.2
Ratio = 10%
Ratio = 15%
Ratio = 20%
Ratio = 25%
Ratio = 5%
13.0
18.5
24.5
30.5
6.6
Percentage to the ICHG
,
,
Pre-Charge Current Ratio
IPRE/ICHG
11.5
15.5
19.5
3.0
15
%
TJ = -40℃ to +85℃
20
25
4.8
9.8
14.8
19.6
24
Ratio = 10%
Ratio = 15%
Ratio = 20%
Ratio = 25%
7.4
12.2
18.4
24.0
29.0
Percentage to the ICHG
End-of-Charge Current Ratio
IEOC/ICHG
11.2
15.2
19.0
%
TJ = -40℃ to +85℃
Timings for Charge-Recycle, Floating Charge, Charge Termination
Charging with ICHG when starting from
BAT < VBAT_ACT
Active Charging Time
tACT
12.5
ms
V
The time holds previous charging state before
recycle
Charging Recycle Time
tHOLD
tD_TRK
tFLT
650
3.8
45
ms
ms
Pre-Charge Voltage Deglitch Time (2)
Floating Charge Time (2)
2.4
37
74
5.2
53
TJ = -40℃ to +85℃
Floating time for tFLT/2 ~ tFLT for charge
termination, TJ = -40℃ to +85℃
min
min
Pre-Charge Safety Time (2)
tSAFE
94
114
TJ = -40℃ to +85℃
Operation Conditions and Limits
INTC_EN
INTC_DIS
VTSEN = VHOT to VCOLD
VTSEN = 0V
37.2
24.0
38.6
25.5
27.37
4.95
2.68
30
40.2
27.0
NTC Sensing Current
Equivalent Resistance
μA
kΩ
26.74
4.836
2.54
28.00
5.064
2.85
R0.5
℃
Reference to the NCP15XH103F03RC (β3380)
R45
℃
NTC Dismissal Threshold
NTC Dismissal Threshold Hysteresis
NTC Cold Threshold
VENH
VENHHYS
VCOLD
TSEN rising
TSEN falling
TSEN rising
TSEN falling
TSEN falling
TSEN rising
TSEN falling
TSEN rising
V
mV
V
1.035
182
92
1.057
165
191
33
1.080
200
Cold Threshold Hysteresis
NTC Hot Threshold
VCOLDHYS
VHOT
VHOTHYS
VENL
VENLHYS
TFOLD
mV
mV
mV
mV
mV
℃
Hot Threshold Hysteresis
Shutdown Threshold
102
15
112
Shutdown Threshold Hysteresis
Thermal Fold-Back Threshold
145
NOTES:
1. VIN - VBAT need more than 95% × ICHG × RON when ICHG > 200mA.
2. Guaranteed by design and characterization. Not production tested.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
8
SGM41566
Linear Regulation Battery Charger
TYPICAL PERFORMANCE CHARACTERISTICS
Measured by SGM41566-360F41, VIN = 5V, VTSEN = 0.4V, TJ = +25℃, unless otherwise noted.
Input Current vs. Input Voltage
Input Current vs. Input Voltage
VTSEN = 0V, Charging Disabled
240
220
200
180
160
140
120
100
69.0
68.5
68.0
67.5
67.0
66.5
66.0
65.5
65.0
VTSEN = 0.4V, Charging Terminated
4
6
8
10
12
14
16
18
20
4
6
8
10
12
14
16
18
20
Input Voltage (V)
Input Voltage (V)
Input Current vs. Input Voltage
Independent of TSEN Voltage
Charge Current vs. Input Voltage
VBAT = 3.24V
30
25
20
15
10
5
303
302
301
300
299
298
297
296
295
0
4
4.5
5
5.5
6
6.5
7
7.5
8
0
4
8
12
16
20
24
Input Voltage (V)
Input Voltage (V)
Charge Voltage vs. Input Voltage
IBAT = 1mA
Charge Current and Dissipation vs. Input Voltage
VBAT = 3.24V
3.604
3.602
3.600
3.598
3.596
3.594
3.592
3.590
3.588
3.586
350
300
250
200
150
100
50
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Dissipation
Charge Current
0
4
6
8
10
12
14
16
18
20
4
6
8
10
12
14
16
18
20
Input Voltage (V)
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
9
SGM41566
Linear Regulation Battery Charger
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Measured by SGM41566-360F41, VIN = 5V, VTSEN = 0.4V, TJ = +25℃, unless otherwise noted.
BAT Current vs. BAT Voltage
Pre-Charge Current vs. BAT Voltage
1600
1400
1200
1000
800
600
400
200
0
60.4
60.3
60.2
60.1
60.0
59.9
59.8
59.7
0
0.5
1
1.5
2
2.5
3.60
3.63
3.66
3.69
3.72
3.75
BAT Voltage (V)
BAT Voltage (V)
Charge Current vs. BAT Voltage
Charge Current vs. BAT Voltage
During Charge
302
300
298
296
294
292
290
288
286
350
300
250
200
150
100
50
0
2.5
2.7
2.9
3.1
3.3
3.5
3.7
2.5
2.7
2.9
3.1
3.3
3.5
3.7
BAT Voltage (V)
BAT Voltage (V)
IN-BAT Offset Voltage vs. Input Current
VBAT = 3.24V
Charge Voltage vs. BAT Output Current
83
82
81
80
79
78
77
76
3.61
3.60
3.59
3.58
3.57
3.56
3.55
3.54
3.53
3.52
3.51
3.50
Charging Terminated
0
20
40
60
80
100
0
50
100 150 200 250 300 350
BAT Output Current (mA)
Input Current (mA)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
10
SGM41566
Linear Regulation Battery Charger
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Measured by SGM41566-360F41, VIN = 5V, VTSEN = 0.4V, TJ = +25℃, unless otherwise noted.
Charge Voltage vs. Temperature
VCHG = 3.6V, IBAT = 1mA
Charge Current vs. Temperature
ICHG = 300mA, VBAT = 3.24V
3.602
3.600
3.598
3.596
3.594
3.592
3.590
3.588
3.586
306
304
302
300
298
296
294
292
290
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
Charge Voltage vs. Temperature
VCHG = 4.05V, IBAT = 1mA
Charge Voltage vs. Temperature
VCHG = 3.6V, IBAT = 1mA
4.058
4.056
4.054
4.052
4.050
4.048
4.046
4.044
4.042
4.040
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-40 -25 -10
5
20 35 50 65 80 95 110 125
25
50
75
100
125
150
175
Temperature (℃)
Temperature (℃)
Charge Current vs. Temperature
ICHG = 300mA, VBAT = 3.24V
Charge Current vs. Temperature
ICHG = 50mA, VBAT = 3.24V
350
300
250
200
150
100
50
60
50
40
30
20
10
0
0
25
50
75
100
125
150
175
25
50
75
100
125
150
175
Temperature (℃)
Temperature (℃)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
11
SGM41566
Linear Regulation Battery Charger
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Measured by SGM41566-360F41, VIN = 5V, VTSEN = 0.4V, TJ = +25℃, unless otherwise noted.
45℃ Equivalent Resistance vs. Temperature
Reference to the NCP15XH103F03RC (β3380)
0.5℃ Equivalent Resistance vs. Temperature
Reference to the NCP15XH103F03RC (β3380)
27.42
27.41
27.40
27.39
27.38
27.37
27.36
27.35
27.34
4.98
4.97
4.96
4.95
4.94
4.93
4.92
4.91
4.90
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
NTC Cold Threshold Voltage vs. Temperature
NTC Hot Threshold Voltage vs. Temperature
1.0584
1.0580
1.0576
1.0572
1.0568
1.0564
1.0560
192.8
192.4
192.0
191.6
191.2
190.8
190.4
190.0
189.6
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
NTC Sensing Current vs. Temperature
NTC Sensing Current vs. TSEN Voltage
38.62
38.60
38.58
38.56
38.54
38.52
38.50
38.48
45
40
35
30
25
20
15
10
5
0
-40 -25 -10
5
20 35 50 65 80 95 110 125
0
0.5
1
1.5
2
2.5
TSEN Voltage (V)
Temperature (℃)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
12
SGM41566
Linear Regulation Battery Charger
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Measured by SGM41566-360F41, VIN = 5V, VTSEN = 0.4V, TJ = +25℃, unless otherwise noted.
Pre-Charge Current Ratio vs. Temperature
End-of-Charge Current Ratio vs. Temperature
20.10
20.05
20.00
19.95
19.90
19.85
19.80
4.62
4.60
4.58
4.56
4.54
4.52
4.50
4.48
4.46
4.44
4.42
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
Input Current vs. Temperature
Input Current vs. Temperature
VTSEN = 0V, Charging Disabled
140
138
136
134
132
130
128
126
124
122
120
78
76
74
72
70
68
66
64
62
60
VTSEN = 0.4V, Charging Terminated
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Charge Profile (with Protector)
Charge Profile (without Protector)
350
300
250
200
150
100
50
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
350
300
250
200
150
100
50
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
VBAT
VBAT
IBAT
IBAT
0
0
-50
-50
0
10 20 30 40 50 60 70 80 90
Time (min)
0
10 20 30 40 50 60 70 80 90
Time (min)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
13
SGM41566
Linear Regulation Battery Charger
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Measured by SGM41566-360F41, VIN = 5V, VTSEN = 0.4V, TJ = +25℃, unless otherwise noted.
VIN Power-Up (with Protector)
VIN Power-Up (without Protector)
VIN
VIN
VBAT
VBAT
IIN
IIN
IBAT
IBAT
Time (2ms/div)
Time (2ms/div)
Rectified 50Hz Input Charging Waveforms
VBAT = 0V
Rectified 50Hz Input Charging Waveforms
VBAT = 2V
VIN
VIN
VBAT
VBAT
IBAT
IBAT
Time (5ms/div)
Time (5ms/div)
Rectified 50Hz Input Charging Waveforms
VBAT = 3V
BAT Short
CBAT = 4.7μF
VIN
VBAT
VIN
VBAT
IIN
IBAT
Time (5ms/div)
Time (20μs/div)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
14
SGM41566
Linear Regulation Battery Charger
CHARGE CYCLE DIAGRAM
Floating Time for tFLT/2 ~ tFLT
Battery Discharge
VCHG
98% × VCHG
96% × VCHG
ICHG
IBAT
VBAT
Floating Charge
End
65% × VCHG
V
BAT < VBAT_ACT
IPRE
Active
Charge
Pre-Charge
CC Charge
CV Charge
Fold-Back Retaining
Recharge
Figure 2. Not-Time Scaled Illustrative Charge Profile (with Active Charge)
Floating Time for tFLT/2 ~ tFLT
Battery Discharge
VCHG
98% × VCHG
96% × VCHG
ICHG
IBAT
VBAT
Floating Charge
End
65% × VCHG
VBAT > VBAT_ACT
IPRE
Pre-Charge
CC Charge
CV Charge
Fold-Back Retaining
Recharge
Figure 3. Not-Time Scaled Illustrative Charge Profile (without Active Charge)
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
15
SGM41566
Linear Regulation Battery Charger
FUNCTIONAL BLOCK DIAGRAM
IN
BAT
+
VOS
BAT
-
VREF
UVLO
+
INTC
_
+
PRE
REG
VREF
38.6μA
VCC
VCC
+
_
2.68V
VREF
c1
c2
c3
c4
1.057V
Charge
Control
VCC
191mV
102mV
Die
Temp
+
_
TSEN
145℃
GND
Figure 4. Block Diagram
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
16
SGM41566
Linear Regulation Battery Charger
DETAILED DESCRIPTION
The SGM41566 is a constant-voltage and constant-
current profile charge regulator with the input condition
check. It features with input clamp, output clamp, die
temperature regulation, NTC temperature-oriented
protection and floating charging protection. As shown in
Figure 1, there are only few external components
desired. Figure 2 and Figure 3 show the illustrative
charge profiles.
current, and minimum floating charge time > tFLT/2 is a
part of condition for full-of-charge certification.
Over-Temperature Charge Regulation
The device senses the die temperature. The thermal
fold-back function starts to reduce the charge current
when the internal temperature reaches the typical value
of +145℃.
System Start-Up Pre-Charge
BAT Over-Voltage Protection
When the input is applied and the BAT pin voltage is
less than both the pre-charge threshold voltage and
activation threshold voltage, the device outputs the
constant normal charge current for tACT, which supplies
for the system load to start up in no battery situation or
the battery in protection off, before it turns into
pre-charge where the output current may not be
enough to start up the system.
When any leakage or transient pulls VBAT higher than
104% × VCHG in charge, the BAT sinks current with
1.5mA clamp current for protection.
Full-of-Charge and Input Clamp
When the full-of-charge is certified, the input IIN drops
low and the output voltage steps down from VCHG to
VFCHG. The sudden current changes the signals to the
source side for turning into the full-of-charge state, and
the source side can read the state by checking the
output voltage or current. In case of wireless or
contactless charging with high open load voltage, the
device clamps its input voltage to about 21V with 26mA
sinking.
Wide Charge Available Input Range
Charging is kept when the input voltage is higher than
the nominal input range, or when the supply cannot
keep voltage and current stable. The charge current is
regulated to prevent over-heating when the input
voltage is at the higher range end, and it keeps
conduction and maintains minimum forward drop-out
when the input voltage is at the lower range end. It can
charge from pulse train input such as half-sine wave of
rectified AC and slow change source like solar cell
photo-voltage, while it keeps charge state flags until the
internal bias losses or the input stays low for long
enough.
NTC Temperature Sensing and Enable
The TSEN sources current (38.6μA) is used to read
ground resistance for temperature-oriented protection.
A grounded NTC thermistor is connected to the TSEN
pin for temperature sensing. Charging is allowed only
when the temperature is in suitable range. When a
β3380 R25 10kΩ NTC is used, the precise upper and
lower thresholds are 45℃ and 0.5℃, respectively.
Voltage Fold-Back Power Retaining
Pull the TSEN to ground to disable charge function, and
pull the TSEN to high voltage > 2.68V to dismiss the
temperature-oriented protection function, while enables
charge.
When the end-of-charge condition is certified, it lowers
the output to the safe voltage VFCHG, while keeping the
current limit at the level of normal charge and retaining
power to the load system. The design avoids frequent
discharging and recharging cycling in the situation that
charge supply is always attached.
Pre-Charge Safety Time
To avoid further damage to bad battery or wrong
system load, if the BAT pin voltage cannot reach 65% ×
VCHG for over tSAFE (94 minutes), the charging will be
stopped. However, for the 50Hz rectified input voltage
Minimum Floating Charge Time
When the charging current with high system load that
sinks more than the residual end-of-charge current and
the battery voltage stays higher than the floating charge
voltage for over tFLT duration, the battery will stop
charging and enter the end-of-charge fold-back power
retaining state. As a weak source, it may also cause the
current to fall to less than the residual end-of-charge
waveform, when the input voltage is lower than VUVLOf
the SGM41566 has no such protection function.
,
This protection function is not available for the "No
pre-charge" option.
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
17
SGM41566
Linear Regulation Battery Charger
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (OCTOBER 2022) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
OCTOBER 2022
18
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TDFN-2×2-8AL
D
e
N8
D1
L
k
E1
E
N1
PIN 1#
DETAIL A
b
BOTTOM VIEW
TOP VIEW
SEATING PLANE
eee C
1.60
0.50
A
C
A2
A1
0.90 1.90
SIDE VIEW
ALTERNATE A-1 ALTERNATE A-2
0.25
0.50
DETAIL A
ALTERNATE TERMINAL
CONSTRUCTION
RECOMMENDED LAND PATTERN (Unit: mm)
Dimensions In Millimeters
Symbol
MIN
MOD
0.750
-
MAX
0.800
0.050
A
A1
A2
b
0.700
0.000
0.203 REF
0.250
2.000
1.600
2.000
0.900
0.250
0.500
0.300
0.080
0.200
1.900
1.450
1.900
0.750
0.150
0.450
0.200
0.300
2.100
1.700
2.100
1.000
0.350
0.550
0.400
D
D1
E
E1
k
e
L
eee
NOTE: This drawing is subject to change without notice.
SG Micro Corp
TX00184.003
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
TDFN-2×2-8AL
7″
9.5
2.30
2.30
1.10
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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