Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
General Description
Features
The series of SDC6087 battery protection ICs is designed

Zero-volt bat. charging is enabled
for 1-cell lithium-ion/polymer battery with integrated

Bulit-in N-MOSFET of low ron
power N-Channel MOSFET. Also it holds highly accurate

Low quiescent current (Typ: 3.7 uA @3.6V)
detection circuits and detection delay circuits to prevent

Low power-down current (Typ: 1.5 uA @2.0V)
batteries from over-charge, over-discharge and over-

High accuracy overcharge detection voltage: ±50mV
current discharging.

Two detection levels for overcurrent protection

Over-charging protection, over-discharging
A battery protection system can be made by only SDC6087
enabled, and the low standby current draws little current
from the cell while in storage.
Built-in time delay circuits

Package: MSOP-8
L
A
I
T
O
D
Applications

U
C


N
E
M
protection
and few external parts. Zero-volt battery charging is
T
Protection IC for one-cell lithium-ion battery pack.
Protection IC for one-cell lithium- polymer battery
pack
N
E
D
I
F
N
O
C
D
S
C
MSOP-8
Figure 1. Package Type
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
1/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Pin Configuration
T
Package: MSOP-8
GND
1
8
BATT-
GND
2
7
BATT-
NC
3
6
NC
VCC
4
5
CS
Figure 2. Pin Configuration
Pin Number
Pin Name
1
GND
2
GND
3
NC
4
VCC
5
CS
6
NC
L
A
I
T
N
E
D
I
F
7
BATT-
8
BATT-
N
N
E
M
U
C
O
D
Function
Ground pin
Ground pin
Not connected
Power supply, through a resistor(R1)
Input pin for current sense, charger detect
Not connected
Connect to negative of charger or load
Connect to negative of charger or load
Table 1. Pin Description
O
C
C
D
S
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
2/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Product Name List
Model
Package
SDC6087AA
MSOP-8
Overcharge
Overcharge
Overdischarge
Overdischarge
Overcurrent 1
0V Bat.
Detection
Release
Detection Vol.
ReleaseVol.
Detection Vol.
Charge
Vol.[V CU ](V)
Vol.[V CL ](V)
[V DL ](V)
[V DU ](V)
[V OC1 ](mV)
Enable
4.300±0.05
4.100±0.05
2.4±0.1
3.0±0.1
150±30
Yes
Table 2. Product Name List
Yes
U
Zero-volt
Battery Detector
C
O
VCC
Overcharge
Detector
GND
ID
GN
D
F
N
O
L
A
Oscillator
Control
Circuit
I
T
N
E
Overdischarge
Detector
D
S
N
E
M
Functional Block Diagram
C
T
Recovery
D
Short Circuit
Detector
Over Current 1
Detector
Divider
Control Logic
Control
Logic
OD
M1
C
GND
GND
GND
CS
GND
Charger
Detector
GND
OC
M2
BATT-
Figure 3. Functional Block Diagram
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
3/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Ordering Information
T
SDC6087 X X X X - X
E1: Pb-free
G1: Halogen-free
TR: Tape Reel
Blank: Tube
Package
MSOP-8: M
Circuit Type
C
Part Number
Temperature
-40℃~85℃
MSOP-8
M
U
Product Code
Package
N
E
Pb-free
Halogen-free
SDC6087AAMTR-E1
SDC6087AAMTR-G1
SDC6087AAM-E1
SDC6087AAM-G1
L
A
I
T
O
Marking ID
Pb-free
Halogen-free
Packing
Type
6087AA
6087AAG
Tape Reel
6087AA
6087AAG
Tube
D
N
E
D
I
F
N
O
C
C
D
S
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
4/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Absolute Maximum Ratings (NOTE: Stresses greater than those listed under Absolute Maximum Ratings may cause
permanent damage to the device.)
Parameter
Symbol
Min
Max
Input voltage between VCC and GND
V CC
GND-0.3
GND+10
CS input pin voltage
V CS
V CC -36
V CC +0.3
MSOP-8 theta JA
θ JA
-
200
ESD, HBM model per Mil-Std-883, Method 3015
HBM
2000
-
ESD, MM model per JEDEC EIA/JESD22-A115
MM
200
Latch-up test per JEDEC 78
-
200
Storage temperature range
T ST
-40
U
Operating temperature range
T OP
-40
Table 2. Absolute Maximum Ratings
L
A
Recommended Operating Conditions
Parameter
Symbol
Input voltage between VCC and GND
V CC
Operating temperature
T OP
I
T
-
-
C
Unit
V
M
°C/W
V
V
mA
125
°C
85
°C
O
T
N
E
V
D
Min
Max
Unit
2.2
4.5
V
0
60
°C
N
E
Table 3. Recommended Operating Conditions
D
I
F
N
O
C
C
D
S
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
5/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Electrical Characteristics (Ta=25°C, unless otherwise specified)
Parameter
Symbol
Conditions
Min
Typ
Max
Detection Voltage
Unit
V CU
-
4.25
4.30
4.35
V
Overcharge release voltage
V CL
-
4.05
4.10
4.15
V
Overdischarge protection voltage
V DL
-
2.3
2.4
2.5
V
Overdischarge release voltage
V DU
-
2.9
3.0
Charger detection threshold voltage
V CHG
V CC =2.2V
-1.2
-0.7
Overcurrent 1 detection voltage
V OC1
V CC =3.6V
120
150
Short-circuit detection voltage
V SIP
V CC =3.6V
1.1
V 0CHA
V CC =0V
1.2
0V battery charging enable charger
detection voltage
M
3.1
U
V
V
C
180
mV
1.2
1.3
V
-
-
V
O
-0.2
Supply current
I CC
V CC =3.6V
D
-
3.7
6.0
µA
Power-down current
I PD
V CC =2.0V
-
1.5
3.0
µA
-
80
120
ms
Current Dissipation
L
A
I
T
T
N
E
Overcharge protection voltage
Detection Delay Time
Overcharge delay time
T OC
Overdischarge delay time
T OD
V CC =3.0V~ 2V
-
40
60
ms
Overcurrent 1 delay time
T OC1
V CC =3.6V
-
10
20
ms
Short-circuit delay time
T SIP
V CC =3.6V
-
20
300
us
20
-
-
V
-
0.1
-
V/°C
V GS =3.7V, I D =1A
-
38.5
48
mΩ
V GS =2.7V, I D =1A
-
45
55
mΩ
-
-
1
uA
-
-
25
uA
N
E
D
I
F
Drain-source breakdown voltage
(BATT- to D12/D12 to GND)
N
Breakdown voltage temperature
coefficient
O
Static source-source on-resistance
(BATT- to GND)
C
C
Drain-source leakage current (BATT- to
D
S
D12/D12 to GND)
-
N-MOSFET
V (BR)DSS
V GS =0V, I D =250uA
ΔV (BR)DSS /Δ
Reference to 25,
TJ
I D =1mA
R SS(ON)
V DS =16V, V GS =0V,
I DSS
T J =25°C
V DS =16V, V GS =0V,
T J =70°C
Table 4. Electrical Characteristics
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
6/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Test Circuit
T
Supply Current I CC (See Figure 3)
After overdischarge, gradually increase the V1 step by step.
Monitor the V2’s working mode and I1’s value. When V2
Set K1 closed, K2 opened. Set V1=3.6V, make sure IC
works under normal condition, BATT- and GND have the
N
E
turns to work in current mode and the value of I1 is larger
same level of voltage. Test the output current of V1, this
than 200uA, the voltage of V1 is the overdischarge release
voltage V DU .
current is the supply current I CC .
M
Charger Detection Threshold Voltage V CHG
(See Figure 5)
U
Note: when testing current, BATT- needs to be floated.
C
Power-down Current I PD (See Figure 3)
Set K1 opened, K2 closed. Set V1=1.8V, V2=500mV, V3=0V.
O
Set K1 opened, K2 closed. Set V1=2.0V，make sure IC
Increase the V1 to V1=V DL +(V HD /2). Gradually decrease V3
works under power-down mode. Test the output current
to a negative value step by step, monitor the V2’s working
of V1, this is the power-down mode current I PD .
mode and I1’s value. When V2 turns to work in current
Note: when testing current, BATT- needs to be floated.
N
E
works in current mode, I V2 =10mA. Then gradually increase
the V1 voltage step by step, monitor the V2’s working
ID
mode and I1’s value. When V2 turns to work in voltage
mode and the value of I1 is smaller than 100uA, the
F
voltage of V1 is the overcharge protection voltage V CU .
N
of V3 is the charger detection threshold voltage V CHG .
I
T
Overcharge Protection Voltage V CU and Overcharge Release Voltage V CL (See Figure 4)
Short CS to BATT-. Set V1=3.6V, V2 (Less than 500mV)
L
A
D
mode and the value of I1 is larger than 200uA, the voltage
Discharge Overcurrent Detection Voltage and
Detection Delay Time(See Figure 6)
Set V1=3.6V, V3 to a signal generator, V2(Less than 500mV)
works in current mode(I V2 =10mA). Set the generator to
square wave mode of frequency=1Hz, V P-P =100mV,
Duty=50%. Gradually increase V3’s voltage step by step,
monitor V2’s working mode and I1’s value. When V2 turns
to work in voltage mode and the value of I1 is smaller
After overcharge, gradually decrease the V1 step by step.
than 100uA, the voltage (Peak to Peak) of V3 is the
Monitor the V2’s working mode and I1’s value. When V2
overcurrent 1 detection voltage V OC1 .
O
turns to work in current mode and the value of I1 is larger
C
than 200uA, the voltage of V1 is the overcharge release
voltage V CL .
C
Overdischarge Protection Voltage V DL and Overdischarge Release Voltage V DU (See Figure 5)
D
S
Set K1 closed, K2 opened. Set V1=3.6V, V2(Less than
Short current detection voltage V SIP has the same testing
method as V OC1 . The differences between them are square
wave’s peak-peak voltage and frequency. Adjust the peak
value and the frequency to be around the IC’s detection
value and larger than it’s delay time, the accurate
detection voltage can be tested.
500mV) works in current mode, IV2=10mA. Gradually
Compare the V3’s voltage waveform and the I1’s current
decrease the V1 voltage step by step. Monitor V2’s
waveform, the accurate delay time can be measured.
working mode and I1’s value. When V2 turns to work in
voltage mode and the value of I1 is smaller than 100uA，
Overcharge Delay Time T CU (See Figure 4)
the voltage of V1 is the overdischarge protection voltage
Short CS to BATT-. Set V1=3.6V and V2=1V, V2 works in
V DL .
current mode, I V2 =50mA. Then switch the V1 from
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
7/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
(V CU )−0.5V to (V CU )+0.5V within 10us and monitor the
Set K1 closed, K2 opened. Set V1=3.6V and V2=1V, V2
V2’s current waveform.
works in current mode (I V2 =10mA). Switch the V1 from
T
(V DL )+0.5 V to (V DL )-0.5V within 10us and monitor the V2’s
Compare the V1’s voltage waveform and V2’s current
N
E
current waveform.
waveform, the overcharge delay time TCU can be
Compare the V1’s voltage waveform and V2’s current
measured.
waveform, the overdischarge delay time T DL can be
Overdischarge Delay Time T DL (See Figure 5)
M
measured.
U
C
R1
K2
R1
VCC
CS
VCC
470Ω
A
V1
C1
0.1uF
V1
L
A
BATT-
GND
I
T
Figure 4.
N
E
R1
CS
VCC
470Ω
V1
C1
0.1uF
SDC6087
D
I
F
BATT-
GND
N
V2
A
K1
K2
C
D
CS
SDC6087
BATT-
GND
V2
Current
Probe
A
I1
Figure 5.
R1
CS
VCC
470Ω
V1
V3
C1
0.1uF
I1
Figure 6.
Signal
Generator
SDC6087
BATT-
GND
V3
O
C
C1
0.1uF
K1
SDC6087
O
470Ω
I1
A
V2
Current
Probe
Figure 7.
D
S
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
8/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Function Description
T
recovery.
The SDC6087 series incorporates full battery protection
functions of over-charging, over-discharging and over-
N
E
The CS pin voltage becomes lower than the charger
current discharging conditions for battery protect system.
detection
threshold
voltage
(V CH )
under
charger
Normal Condition
connected condition, and the battery voltage is upon V DL .
IF the battery is capable of both charging and discharging
The main purpose of case 2 release is to open the
in the pack and the internal N-MOSFET is opened,
discharge MOSFET as soon as the charger is connected.
SDC6087 works under normal condition.
The discharger MOSFET will benefit much by not passing
M
U
C
high-level current through body diode when a low voltage
Over-charging Protection
O
battery is connected to a charger. As a result, this prolongs
When the voltage of the battery cell goes exceeds the
overcharge
protection
voltage
(V CU )
beyond
the
the MOSFET’s life-span.
D
Overcurrent Protection
overcharge delay time (T OC ) period, charging is inhibited
L
A
In normal mode, the SDC6087 continuously monitor the
by turning off the charge control MOSFET.
I
T
The overcharge condition is released in any of the
following cases:
N
E
The voltage of the battery cell becomes lower than the
discharge current by sensing the voltage of CS pin. If the
voltage of CS pin exceeds the overcurrent 1 protection
voltage (V OC1 ) beyond the overcurrent delay time (T OC1 )
period, the overcurrent protection circuit operates and
overcharge release voltage (V CL ) and no charger is
discharging is inhibited by turning off the discharge
connected.
control MOSFET. Short circuit protection are similar to
ID
The voltage of the battery cell falls below the V CU voltage
F
and a load is connected.
N
When the battery voltage goes above V CU , the overcharge
O
condition will not release even a load is connected to the
pack.
C
Over-discharging Protection
C
When the voltage of the battery cell goes below the
D
S
overdischarge protection voltage (V DL ) beyond the
overdischarge delay time (T OD ) period, discharging is
inhibited by turning off the discharge control MOSFET.
overcurrent 1. The differences between them are
detection threshold on the CS pin and the detection delay
time accordingly.
The overcurrent condition returns to normal mode when
the load is released or the impedance between BATT+ and
BATT- is larger than 1MΩ. The SDC6087 provides three
overcurrent detection levels (0.18V and 1.2V) with three
overcurrent delay time (T OC1 and T SIP ) corresponding to
each overcurrent detection level
Auto Power Down Recovery
The SDC6087 continues to operate even after the
The default overdischarge delay time is 40mS. Inhibition
overdischarge state has been entered. The battery voltage
of discharging is immediately released under any of the
rising to the overdischarge release voltage (V DU ) or higher
below cases:
is the only required condition for the IC to return to the
The voltage of the battery cell becomes higher than the
overdischarge release voltage (V DU ) through auto-
normal state.
Zero-Volt Battery Charge Function
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
9/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
When a battery’s voltage goes down to zero since a long
voltage. The internal charge control MOSFET is turned on
time self-discharge process, the SDC6087 also enables
when V GS >V GSth (V GS is the differential voltage between
charging. When a charger’s voltage is higher than V0CHA,
CO pin and charger’s negative pin.). Thus the 0V charging
the
function is fulfilled.
internal charge control MOSFET is pulled up to V CC
T
N
E
Timing Diagram
Overcharge Condition ->Load Discharging->Normal Condition
M
U
Charger
C
Load
O
Battery Voltage
VCU
VCL
L
A
VDU
VDL
I
T
CS PIN
VCC
N
E
VOC1
D
I
F
GND
VCHG
TOC
Battery Current
TOC
N
Charge
Current
C
0
D
O
C
D
S
Discharge
Current
Overcharge
Protection State
Normal
Discharging
State
Overcharge
Protection State
Normal
Discharging
State
Figure 8.
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
10/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Overdischarge Condition>Charging by a charger ->Normal Condition
Charger
T
Load
N
E
Battery Voltage
VCU
VCL
M
U
VDU
VDL
C
O
VCC
CS PIN
VSIP
L
A
GND
VCHG
TOD
N
E
Battery Current
Charge
Current
Discharge
Current
D
S
TOD
D
I
F
0
C
I
T
D
C
O
N
Discharge
Protection State
Discharge
Protection State
Figure 9.
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
11/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Overcurrent Condition->Normal Condition
T
Charg
er
Load
N
E
M
Battery Voltage
VCU
VCL
U
VDU
VDL
C
O
CS PIN
VCC
VSIP
L
A
VOC1
GND
VCHG
Battery Current
Charge
Current
N
O
C
Discharge
Current
D
S
TSIP
D
I
F
0
C
I
T
N
E
TOC1
D
Short Circuit
Protection State
Overcurrent 1
Protection State
Figure 10.
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
12/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Typical Application
T
EB+
N
E
R1
CS
470Ω
VCC
C1
M
U
SDC6087
0.1uF
C
O
GND
L
A
D
BATT-
R2
2KΩ
EB-
I
T
Figure 11. A Typical Application Circuit
N
E
D
I
F
N
O
C
C
D
S
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
13/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
Package Dimension
MSOP-8
T
N
E
M
U
C
O
L
A
D
I
T
N
E
D
I
F
N
Symbol
C
O
Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
0.820
1.100
0.032
0.043
0.020
0.150
0.001
0.006
A2
0.750
0.950
0.030
0.037
b
0.250
0.380
0.010
0.015
c
0.090
0.230
0.004
0.009
D
2.900
3.100
0.114
0.122
A
C
A1
D
S
e
0.650(BSC)
0.026(BSC)
E1
4.750
5.050
0.187
0.199
E
2.900
3.100
0.114
0.122
L
0.400
0.800
0.016
0.031
θ
0°
6°
0°
6°
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
14/15
www.sdc-semi.com
Datasheet
One-cell Lithium-ion/Polymer Battery Protection IC
SDC6087
T
N
E
M
U
C
O
Shaoxing Devechip Microelectronics Co., Ltd.
L
A
http://www.sdc-semi.com/
D
I
T
N
E
D
I
F
N
IMPORTANT NOTICE
Information in this document is provided solely in connection with Shaoxing Devechip Microelectronics Co., Ltd. (abbr. SDC) products.
SDC reserves the right to make changes, corrections, modifications or improvements, to this document, and the products and services
O
described herein at anytime, without notice. SDC does not assume any responsibility for use of any its products for any particular
C
purpose, nor does SDC assume any liability arising out of the application or use of any its products or circuits. SDC does not convey
any license under its patent rights or other rights nor the rights of others.
C
D
S
Contact us:
© 2013 Devechip Microelectronics - All rights reserved
Headquarters of Shaoxing
Shenzhen Branch
Address: Tian Mu Road, No13,
Address: 22A, Shangbu building, Nan Yuan Road, No.68,
Shaoxing city, Zhejiang province, China
Futian District, Shenzhen city, Guangdong province, China
Zip code: 312000
Zip code: 518031
Tel: (86) 0575-8861 6750
Tel: (86) 0755-8366 1155
Fax: (86) 0575-8862 2882
Fax: (86) 0755-8301 8528
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
15/15
www.sdc-semi.com