S-8211DAB-M5T1G [SII]

BATTERY PROTECTION IC FOR 1-CELL PACK; 电池保护IC 1格包
S-8211DAB-M5T1G
型号: S-8211DAB-M5T1G
厂家: SEIKO INSTRUMENTS INC    SEIKO INSTRUMENTS INC
描述:

BATTERY PROTECTION IC FOR 1-CELL PACK
电池保护IC 1格包

电池 光电二极管
文件: 总36页 (文件大小:369K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Rev.4.5_00  
BATTERY PROTECTION IC  
FOR 1-CELL PACK  
S-8211D Series  
The S-8211D Series are protection ICs for single-cell lithium-ion  
/ lithium-polymer rechargeable batteries and include high-  
accuracy voltage detectors and delay circuits.  
These ICs are suitable for protecting single-cell rechargeable  
lithium-ion / lithium-polymer battery packs from overcharge,  
overdischarge, and overcurrent.  
„ Features  
(1) High-accuracy voltage detection circuit  
Overcharge detection voltage  
3.9 to 4.4 V (5 mV steps)  
Accuracy 25 mV (+25 °C)  
Accuracy 30 mV (5 to +55 °C)  
Accuracy 50 mV  
Overcharge release voltage  
3.8 to 4.4 V*1  
Overdischarge detection voltage  
Overdischarge release voltage  
Discharge overcurrent detection voltage  
Load short-circuiting detection voltage  
2.0 to 3.0 V (10 mV steps)  
Accuracy 50 mV  
2.0 to 3.4 V*2  
Accuracy 100 mV  
0.05 to 0.30 V (10 mV steps)  
0.5 V (fixed)  
Accuracy 15 mV  
Accuracy 200 mV  
(2) Detection delay times are generated by an internal circuit (external capacitors are unnecessary).  
Accuracy 20%  
(3) High-withstanding-voltage device is used for charger connection pins (VM pin and CO pin : Absolute maximum  
rating = 28 V)  
(4) 0 V battery charge function available / unavailable are selectable.  
(5) Shutdown function yes / no are selectable.  
(6) Wide operating temperature range  
(7) Low current consumption  
Operation mode  
40 to +85 °C  
3.0 µA typ., 5.5 µA max. (+25 °C)  
0.2 µA max. (+25 °C)  
SOT-23-5, SNT-6A  
Power-down mode  
(8) Small package:  
(9) Lead-free product  
*1. Overcharge release voltage = Overcharge detection voltage Overcharge hysteresis voltage  
(Overcharge hysteresis voltage can be selected as 0 V or from a range of 0.1 to 0.4 V in 50 mV steps.)  
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage  
(Overdischarge hysteresis voltage can be selected as 0 V or from a range of 0.1 to 0.7 V in 100 mV steps.)  
„ Applications  
Lithium-ion rechargeable battery packs  
Lithium-polymer rechargeable battery packs  
„ Packages  
Drawing Code  
Package Name  
Package  
MP005-A  
PG006-A  
Tape  
Reel  
Land  
PG006-A  
SOT-23-5  
SNT-6A  
MP005-A  
PG006-A  
MP005-A  
PG006-A  
Seiko Instruments Inc.  
1
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Block Diagram  
Output control circuit  
0 V battery charge circuit  
Oscillator control  
circuit  
Divider control  
or 0 V battery charge  
DO  
circuit  
inhibition circuit  
VDD  
+
Charger detection circuit  
CO  
+
Overcharge  
detection  
comparator  
Discharge overcurrent detection  
comparator  
RVMD  
VM  
+
RVMS  
Overdischarge  
detection  
+
comparator  
Load short-circuiting detection  
comparator  
VSS  
Remark All diodes shown in figure are parasitic diodes.  
Figure 1  
2
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Product Name Structure  
1. Product Name  
S-8211D  
xx  
-
xxxx  
G
Package name (abbreviation) and IC packing specifications *1  
M5T1 : SOT-23-5, Tape  
I6T1 : SNT-6A, Tape  
Serial code *2  
Sequentially set from AA to ZZ  
*1. Refer to the taping specifications.  
*2. Refer to the “2. Product Name List”.  
Seiko Instruments Inc.  
3
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
2 Product Name List  
(1) SOT-23-5  
Table 1  
Discharge  
Overcurrent  
Detection  
Voltage  
Overcharge Overcharge Over-discharge Over-discharge  
0 V Battery  
Charge  
Function  
Detection  
Voltage  
VCU  
Release  
Voltage  
VCL  
Detection  
Voltage  
VDL  
Release  
Voltage  
VDU  
Delay Time  
Shutdown  
Function  
Product Name / Item  
Combination*1  
VDIOV  
Unavailable  
Unavailable  
Available  
Unavailable  
Available  
Unavailable  
Available  
Unavailable  
S-8211DAB-M5T1G  
S-8211DAE-M5T1G  
S-8211DAH-M5T1G  
S-8211DAI-M5T1G  
S-8211DAJ-M5T1G  
S-8211DAK-M5T1G  
S-8211DAL-M5T1G  
S-8211DAM-M5T1G  
4.250 V  
4.280 V  
4.275 V  
4.325 V  
4.280 V  
4.280 V  
4.280 V  
4.275 V  
4.050 V  
4.180 V  
4.175 V  
4.075 V  
4.080 V  
4.080 V  
4.080 V  
4.075 V  
2.60 V  
2.50 V  
2.30 V  
2.50 V  
3.00 V  
2.30 V  
2.80 V  
2.50 V  
2.90 V  
2.70 V  
2.40 V  
2.90 V  
3.00 V  
2.30 V  
2.80 V  
2.90 V  
0.12 V  
0.19 V  
0.10 V  
0.15 V  
0.08 V  
0.13 V  
0.10 V  
0.15 V  
(1)  
(1)  
(1)  
(1)  
(1)  
(1)  
(1)  
(1)  
No  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
*1. Refer to the Table 3 about the details of the delay time combinations (1).  
Remark Please contact our sales office for the products with detection voltage value other than those specified  
above.  
(2) SNT-6A  
Table 2  
Discharge  
Overcharge Overcharge Over-discharge Over-discharge  
Overcurrent  
Detection  
Voltage  
0 V Battery  
Charge  
Function  
Detection  
Voltage  
VCU  
Release  
Voltage  
VCL  
Detection  
Voltage  
VDL  
Release  
Voltage  
VDU  
Delay Time  
Shutdown  
Function  
Product Name / Item  
Combination*1  
VDIOV  
Unavailable  
Unavailable  
Available  
S-8211DAB-I6T1G  
S-8211DAE-I6T1G  
S-8211DAF-I6T1G  
S-8211DAG-I6T1G  
4.250 V  
4.280 V  
4.250 V  
4.280 V  
4.050 V  
4.180 V  
4.050 V  
4.080 V  
2.60 V  
2.50 V  
2.40 V  
2.30 V  
2.90 V  
2.70 V  
2.90 V  
2.30 V  
0.12 V  
0.19 V  
0.10 V  
0.08 V  
(1)  
(1)  
(2)  
(1)  
No  
Yes  
No  
Available  
No  
*1. Refer to the Table 3 about the details of the delay time combinations (1) and (2).  
Remark Please contact our sales office for the products with detection voltage value other than those specified  
above.  
4
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
Table 3  
Discharge Overcurrent Load Short-circuiting  
Overcharge  
Detection  
Delay Time  
tCU  
Overdischarge  
Detection  
Delay Time  
tDL  
Delay Time  
Combination  
Detection  
Delay Time  
tDIOV  
Detection  
Delay Time  
tSHORT  
(1)  
(2)  
1.2 s  
1.2 s  
150 ms  
75 ms  
9 ms  
9 ms  
300 µs  
300 µs  
Remark The delay times can be changed within the range listed Table 4. For details, please contact our sales office.  
Table 4  
Delay Time  
Overcharge detection delay time  
Overdischarge detection delay time  
Discharge overcurrent detection delay time  
Load short-circuiting detection delay time  
Symbol  
tCU  
tDL  
tDIOV  
Selection Range  
Remark  
143 ms  
573 ms  
150 ms  
9 ms  
1.2 s  
300 ms  
18 ms  
Select a value from the left.  
Select a value from the left.  
Select a value from the left.  
Select a value from the left.  
38 ms  
4.5 ms  
tSHORT  
300  
µ
s
560 µs  
Remark The value surrounded by bold lines is the delay time of the standard products.  
Seiko Instruments Inc.  
5
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Pin Configurations  
Table 5  
SOT-23-5  
Pin No.  
1
Symbol  
VM  
Description  
Top view  
Voltage detection between VM pin and VSS pin  
(Overcurrent / charger detection pin)  
Connection for positive power supply input  
Connection for negative power supply input  
Connection of discharge control FET gate  
(CMOS output)  
5
4
2
3
VDD  
VSS  
4
DO  
Connection of charge control FET gate  
(CMOS output)  
5
CO  
1
2
3
Figure 2  
SNT-6A  
Top view  
Table 6  
Pin No.  
1
Symbol  
NC*1  
Description  
1
2
3
6
5
4
No connection  
Connection of charge control FET gate  
(CMOS output)  
Connection of discharge control FET gate  
(CMOS output)  
2
CO  
3
DO  
4
5
VSS  
VDD  
Connection for negative power supply input  
Connection for positive power supply input  
Voltage detection between VM pin and VSS pin  
(Overcurrent / charger detection pin)  
Figure 3  
6
VM  
*1. The NC pin is electrically open.  
The NC pin can be connected to VDD or VSS.  
6
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Absolute Maximum Ratings  
Table 7  
(Ta = 25 °C unless otherwise specified)  
Item  
Symbol  
VDS  
Applied pin  
VDD  
Absolute Maximum Ratings  
SS 0.3 to VSS + 12  
DD 28 to VDD + 0.3  
SS 0.3 to VDD + 0.3  
VM 0.3 to VDD + 0.3  
Unit  
Input voltage between VDD pin and  
V
V
VSS pin  
VM pin input voltage  
DO pin output voltage  
CO pin output voltage  
VVM  
VDO  
VCO  
VM  
DO  
CO  
V
V
V
V
V
V
mW  
mW  
mW  
°C  
250 (When not mounted on board)  
SOT-23-5  
600*1  
400*1  
Power dissipation  
PD  
SNT-6A  
Operating ambient temperature  
Storage temperature  
Topr  
Tstg  
40 to + 85  
55 to + 125  
°C  
*1. When mounted on board  
[Mounted board]  
(1) Board size: 114.3 mm × 76.2 mm × t1.6 mm  
(2) Board name: JEDEC STANDARD51-7  
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical  
damage. These values must therefore not be exceeded under any conditions.  
700  
600  
SOT-23-5  
SNT-6A  
500  
400  
300  
200  
100  
0
100  
150  
50  
0
Ambient Temperature (Ta) [°C]  
Figure 4 Power Dissipation of Package (When Mounted on Board)  
Seiko Instruments Inc.  
7
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Electrical Characteristics  
1. Except Detection Delay Time (25 °C)  
Table 8  
(Ta = 25 °C unless otherwise specified)  
Test  
Condi-  
tion  
Test  
Item  
Symbol  
VCU  
Condition  
Min.  
Typ.  
Max. Unit  
Circuit  
DETECTION VOLTAGE  
VCU  
VCU  
VCL  
VCU  
0.025  
VCU  
V
3.90 to 4.40 V, Adjustable  
3.90 to 4.40 V, Adjustable,  
1
1
1
1
2
2
2
3
1
1
1
1
2
2
2
2
Overcharge detection voltage  
+
0.025  
VCU  
VCU  
V
V
V
V
V
V
V
Ta =  
5 to  
+
55  
°
C*1  
0.03  
+
0.03  
VCL  
VCL  
VCL  
VCU  
0.05  
+0.05  
3.80 to 4.40 V,  
Adjustable  
VCL  
Overcharge release voltage  
VCL  
VCL  
VCL  
0.025  
VCL = VCU  
0.05  
+
VDL  
VDL  
VDL  
VDL  
2.00 to 3.00 V, Adjustable  
Overdischarge detection voltage  
Overdischarge release voltage  
Discharge overcurrent detection voltage  
0.05  
+0.05  
VDU  
VDU  
VDIOV  
0.50  
VDU  
VDU  
VDU  
VDL  
0.10  
+0.10  
2.00 to 3.40 V,  
Adjustable  
VDU  
VDU  
VDU  
VDU = VDL  
0.05  
+0.05  
VDIOV  
0.015  
0.30  
VDIOV  
0.015  
VDIOV  
0.05 to 0.30 V, Adjustable  
+
Load short-circuiting detection voltage*2  
Charger detection voltage  
VSHORT  
VCHA  
0.70  
V
V
3
4
2
2
1.0  
0.7  
0.4  
0 V BATTERY CHARGE FUNCTION  
0 V battery charge starting charger voltage  
0 V battery charge inhibition battery voltage  
INTERNAL RESISTANCE  
Resistance between VM pin and VDD pin  
Resistance between VM pin and VSS pin  
[INPUT VOLTAGE]  
V0CHA  
V0INH  
1.2  
0.5  
V
V
0 V battery charging function “available”  
0 V battery charging function “unavailable”  
10  
11  
2
2
RVMD  
RVMS  
VDD = 1.8 V, VVM = 0 V  
VDD = 3.5 V, VVM = 1.0 V  
k
k
100  
10  
300  
20  
900  
40  
5
5
3
3
VDSOP1  
VDSOP2  
1.5  
1.5  
8
28  
V
V
Operating voltage between VDD pin and VSS pin  
Operating voltage between VDD pin and VM pin  
INPUT CURRENT (Shutdown Function Yes)  
IOPE  
IPDN  
VDD = 3.5 V, VVM = 0 V  
VDD = VVM = 1.5 V  
1.0  
µ
µ
A
A
Current consumption during operation  
Current consumption at power-down  
3.0  
5.5  
0.2  
4
4
2
2
INPUT CURRENT (Shutdown Function No)  
IOPE  
VDD = 3.5 V, VVM = 0 V  
VDD = VVM = 1.5 V  
1.0  
0.3  
µ
µ
A
A
Current consumption during operation  
Current consumption during overdischarge  
OUTPUT RESISTANCE  
3.0  
2.0  
5.5  
3.5  
4
4
2
2
IOPED  
RCOH  
RCOL  
RDOH  
RDOL  
VCO = 3.0 V, VDD = 3.5 V, VVM = 0 V  
VCO = 0.5 V, VDD = 4.5 V, VVM = 0 V  
VDO = 3.0 V, VDD = 3.5 V, VVM = 0 V  
VDO = 0.5 V, VDD =VVM = 1.8 V  
2.5  
2.5  
2.5  
2.5  
5
5
5
5
10  
10  
10  
10  
kΩ  
kΩ  
kΩ  
kΩ  
CO pin resistance “H”  
CO pin resistance “L”  
DO pin resistance “H”  
DO pin resistance “L”  
6
6
7
7
4
4
4
4
*1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed  
by design, not tested in production.  
*2. In any conditions, Load short-circuiting detection voltage (VSHORT) is higher Discharge overcurrent detection voltage  
(VDIOV).  
8
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
2. Except Detection Delay Time (40 to +85°C *1)  
Table 9  
(40 to +85°C *1 unless otherwise specified)  
Test  
Condi-  
tion  
Test  
Circuit  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max. Unit  
DETECTION VOLTAGE  
VCU  
VCU  
VCL  
VCU  
Overcharge detection voltage  
VCU  
VCL  
3.90 to 4.40 V, Adjustable  
V
1
1
1
2
2
2
3
1
1
1
2
2
2
2
0.060  
+
+
0.040  
VCL  
0.08  
VCL  
0.08  
VCL  
0.065  
VCL  
0.04  
VCL  
VCU  
V
3.80 to 4.40 V,  
Adjustable  
Overcharge release voltage  
VCL  
VCL = VCU  
V
+
VDL  
VDL  
VDL  
V
V
V
V
Overdischarge detection voltage  
Overdischarge release voltage  
Discharge overcurrent detection voltage  
VDL  
VDU  
2.00 to 3.00 V, Adjustable  
0.11  
+
0.13  
VDU  
VDU  
VDIOV  
0.50  
VDU  
0.15  
VDU  
0.11  
VDIOV  
0.021  
VDU  
0.19  
VDU  
0.13  
VDIOV  
0.024  
VDU  
VDL  
2.00 to 3.40 V,  
Adjustable  
+
+
VDU = VDL  
VDIOV  
0.05 to 0.30 V, Adjustable  
+
Load short-circuiting detection voltage*2  
Charger detection voltage  
0.16  
0.84  
V
V
3
4
2
2
VSHORT  
VCHA  
1.2  
0.7  
0.2  
0 V BATTERY CHARGE FUNCTION  
0 V battery charge starting charger voltage  
0 V battery charge inhibition battery voltage  
INTERNAL RESISTANCE  
Resistance between VM pin and VDD pin  
Resistance between VM pin and VSS pin  
INPUT VOLTAGE  
V0CHA  
V0INH  
V
V
0 V battery charging function “available”  
0 V battery charging function “unavailable”  
1.7  
10  
11  
2
2
0.3  
RVMD  
RVMS  
VDD = 1.8 V, VVM = 0 V  
VDD = 3.5 V, VVM = 1.0 V  
k
k
78  
7.2  
300  
20  
1310  
44  
5
5
3
3
VDSOP1  
VDSOP2  
V
V
Operating voltage between VDD pin and VSS pin  
Operating voltage between VDD pin and VM pin  
1.5  
1.5  
8
28  
INPUT CURRENT (Shutdown Function Yes)  
IOPE  
IPDN  
VDD = 3.5 V, VVM = 0 V  
VDD = VVM = 1.5 V  
µ
µ
A
A
Current consumption during operation  
Current consumption at power-down  
0.7  
3.0  
6.0  
0.3  
4
4
2
2
INPUT CURRENT (Shutdown Function No)  
IOPE  
VDD = 3.5 V, VVM = 0 V  
VDD = VVM = 1.5 V  
µ
µ
A
A
Current consumption during operation  
Current consumption during overdischarge  
OUTPUT RESISTANCE  
CO pin resistance “H”  
0.7  
0.2  
3.0  
2.0  
6.0  
3.8  
4
4
2
2
IOPED  
RCOH  
RCOL  
RDOH  
RDOL  
VCO = 3.0 V, VDD = 3.5 V, VVM = 0 V  
VCO = 0.5 V, VDD = 4.5 V, VVM = 0 V  
VDO = 3.0 V, VDD = 3.5 V, VVM = 0 V  
VDO = 0.5 V, VDD = VVM = 1.8 V  
k
k
k
k
1.2  
1.2  
1.2  
1.2  
5
5
5
5
15  
15  
15  
15  
6
6
7
7
4
4
4
4
CO pin resistance “L”  
DO pin resistance “H”  
DO pin resistance “L”  
*1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed  
by design, not tested in production.  
*2. In any conditions, Load short-circuiting detection voltage (VSHORT) is higher Discharge overcurrent detection voltage  
(VDIOV).  
Seiko Instruments Inc.  
9
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
3. Detection Delay Time  
(1) S-8211DAB, S-8211DAE, S-8211DAG, S-8211DAH, S-8211DAI, S-8211DAJ, S-8211DAK, S-8211DAL,  
S-8211DAM  
Table 10  
Test  
Condi-  
tion  
Test  
Circuit  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max. Unit  
DELAY TIME (Ta = 25°C)  
tCU  
tDL  
tDIOV  
tSHORT  
0.96  
120  
7.2  
1.2  
150  
9
1.4  
180  
11  
s
ms  
ms  
8
8
9
9
5
5
5
5
Overcharge detection delay time  
Overdischarge detection delay time  
Discharge overcurrent detection delay time  
Load short-circuiting detection delay time  
240  
300  
360  
µs  
DELAY TIME (Ta =  
40 to  
+
85°C) *1  
tCU  
tDL  
tDIOV  
tSHORT  
0.7  
83  
5
1.2  
150  
9
300  
2.0  
255  
15  
540  
s
ms  
ms  
8
8
9
9
5
5
5
5
Overcharge detection delay time  
Overdischarge detection delay time  
Discharge overcurrent detection delay time  
Load short-circuiting detection delay time  
150  
µs  
*1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed  
by design, not tested in production.  
(2) S-8211DAF  
Table 11  
Test  
Test  
Condi-  
tion  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max. Unit  
Circuit  
DELAY TIME (Ta = 25°C)  
s
ms  
ms  
8
8
9
9
5
5
5
5
Overcharge detection delay time  
Overdischarge detection delay time  
Discharge overcurrent detection delay time  
Load short-circuiting detection delay time  
tCU  
tDL  
tDIOV  
tSHORT  
0.96  
61  
7.2  
1.2  
75  
9
1.4  
90  
11  
µ
s
240  
300  
360  
DELAY TIME (Ta =  
40 to  
+
85°C) *1  
s
ms  
ms  
8
8
9
9
5
5
5
5
Overcharge detection delay time  
tCU  
tDL  
tDIOV  
tSHORT  
0.7  
41  
5
1.2  
75  
9
2.0  
128  
15  
Overdischarge detection delay time  
Discharge overcurrent detection delay time  
Load short-circuiting detection delay time  
µ
s
150  
300  
540  
*1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed  
by design, not tested in production.  
10  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Test Circuits  
Caution Unless otherwise specified, the output voltage levels “H” and “L” at CO pin (VCO) and DO pin (VDO) are  
judged by the threshold voltage (1.0 V) of the N-channel FET. Judge the CO pin level with respect to  
VVM and the DO pin level with respect to VSS.  
(1) Overcharge Detection Voltage, Overcharge Release Voltage  
(Test Condition 1, Test Circuit 1)  
Overcharge detection voltage (VCU) is defined as the voltage between the VDD pin and VSS pin at which VCO goes  
from “H” to “L” when the voltage V1 is gradually increased from the starting condition of V1 = 3.5 V. Overcharge  
release voltage (VCL) is defined as the voltage between the VDD pin and VSS pin at which VCO goes from “L” to “H”  
when the voltage V1 is then gradually decreased. Overcharge hysteresis voltage (VHC) is defined as the difference  
between overcharge detection voltage (VCU) and overcharge release voltage (VCL).  
(2) Overdischarge Detection Voltage, Overdischarge Release Voltage  
(Test Condition 2, Test Circuit 2)  
Overdischarge detection voltage (VDL) is defined as the voltage between the VDD pin and VSS pin at which VDO goes  
from “H” to “L” when the voltage V1 is gradually decreased from the starting condition of V1 = 3.5 V, V2 = 0 V.  
Overdischarge release voltage (VDU) is defined as the voltage between the VDD pin and VSS pin at which VDO goes  
from “L” to “H” when the voltage V1 is then gradually increased. Overdischarge hysteresis voltage (VHD) is defined as  
the difference between overdischarge release voltage (VDU) and overdischarge detection voltage (VDL).  
(3) Discharge Overcurrent Detection Voltage  
(Test Condition 3, Test Circuit 2)  
Discharge overcurrent detection voltage (VDIOV) is defined as the voltage between the VM pin and VSS pin whose  
delay time for changing VDO from “H” to “L” lies between the minimum and the maximum value of discharge  
overcurrent delay time when the voltage V2 is increased rapidly (within 10 µs) from the starting condition of V1 = 3.5  
V, V2 = 0 V.  
(4) Load Short-circuiting Detection Voltage  
(Test Condition 3, Test Circuit 2)  
Load short-circuiting detection voltage (VSHORT) is defined as the voltage between the VM pin and VSS pin whose  
delay time for changing VDO from “H” to “L” lies between the minimum and the maximum value of load short-circuiting  
delay time when the voltage V2 is increased rapidly (within 10 µs) from the starting condition of V1 = 3.5 V, V2 = 0 V.  
(5) Operating Current Consumption  
(Test Condition 4, Test Circuit 2)  
The operating current consumption (IOPE) is the current that flows through the VDD pin (IDD) under the set conditions  
of V1 = 3.5 V and V2 = 0 V (normal status).  
(6) Charger detection voltage (= the detection voltage for irregular charging current)  
(Test Condition 4, Test Circuit 2)  
The charger detection voltage (VCHA) is the voltage between the VM and VSS pin; when gradually increasing V1 at  
V1 = 1.8 V, V2 = 0 V to set V1 = VDL+(VHD/2), after that, decreasing V2 gradually from 0 V so that VDO goes “L” to “H”.  
Measurement of the charger detection voltage is available for the product with overdischarge hysteresis VHD 0 only.  
The detection voltage for irregular charging current is the voltage between the VM and VSS pin; when gradually  
decreasing V2 at V1 = 3.5 V, V2 = 0 V and VCO goes “H” to “L”.  
The value of the detection voltage for irregular charging current is equal to the charger detection voltage (VCHA).  
Seiko Instruments Inc.  
11  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
(7) Power-down Current Consumption, Overdischarge Current Consumption  
(Test Condition 4, Test Circuit 2)  
Shutdown function yes product  
The power-down current consumption (IPDN) is the current that flows through the VDD pin (IDD) under the set  
conditions of V1 = V2 = 1.5 V (overdischarge status).  
Shutdown function no product  
The overdischarge current consumption (IOPED) is the current that flows through the VDD pin (IDD) under the set  
conditions of V1 = V2 = 1.5 V (overdischarge status).  
(8) Resistance between VM Pin and VDD Pin  
(Test Condition 5, Test Circuit 3)  
The resistance between VM pin and VDD pin (RVMD) is the resistance between VM pin and VDD pin under the set  
conditions of V1 = 1.8 V, V2 = 0 V.  
(9) Resistance between VM Pin and VSS Pin  
(Test Condition 5, Test Circuit 3)  
The resistance between VM pin and VSS pin (RVMS) is the resistance between VM pin and VSS pin under the set  
conditions of V1 = 3.5 V, V2 = 1.0 V.  
(10) CO Pin Resistance “H”  
(Test Condition 6, Test Circuit 4)  
The CO pin resistance “H” (RCOH) is the resistance at the CO pin under the set conditions of V1 = 3.5 V, V2 =  
0 V, V3 = 3.0 V.  
(11) CO Pin Resistance “L”  
(Test Condition 6, Test Circuit 4)  
The CO pin resistance “L” (RCOL) is the resistance at the CO pin under the set conditions of V1 = 4.5 V, V2 =  
0 V, V3 = 0.5 V.  
(12) DO Pin Resistance “H”  
(Test Condition 7, Test Circuit 4)  
The DO pin H resistance (RDOH) is the resistance at the DO pin under the set conditions of V1 = 3.5 V, V2 =  
0 V, V4 = 3.0 V.  
(13) DO Pin Resistance “L”  
(Test Condition 7, Test Circuit 4)  
The DO pin L resistance (RDOL) is the resistance at the DO pin under the set conditions of V1 = 1.8 V, V2 =  
0 V, V4 = 0.5 V.  
(14) Overcharge Detection Delay Time  
(Test Condition 8, Test Circuit 5)  
The overcharge detection delay time (tCU) is the time needed for VCO to change from “H” to “L” just after the voltage  
V1 momentarily increases (within 10 µs) from overcharge detection voltage (VCU) 0.2 V to overcharge detection  
voltage (VCU) +0.2 V under the set conditions of V2 = 0 V.  
(15) Overdischarge Detection Delay Time  
(Test Condition 8, Test Circuit 5)  
The overdischarge detection delay time (tDL) is the time needed for VDO to change from “H” to “L” just after the voltage  
V1 momentarily decreases (within 10 µs) from overcharge detection voltage (VDL) +0.2 V to overcharge detection  
voltage (VDL) 0.2 V under the set condition of V2 = 0 V.  
12  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
(16) Discharge Overcurrent Detection Delay Time  
(Test Condition 9, Test Circuit 5)  
Discharge overcurrent detection delay time (tDIOV) is the time needed for VDO to go to “L” after the voltage V2  
momentarily increases (within 10 µs) from 0 V to 0.35 V under the set conditions of V1 = 3.5 V, V2 =  
0 V.  
(17) Load Short-circuiting Detection Delay Time  
(Test Condition 9, Test Circuit 5)  
Load short-circuiting detection delay time (tSHORT) is the time needed for VDO to go to “L” after the voltage V2  
momentarily increases (within 10 µs) from 0 V to 1.6 V under the set conditions of V1 = 3.5 V, V2 =  
0 V.  
(18) 0 V Battery Charge Starting Charger Voltage (Products with 0 V Battery Charging Function Is “Available”)  
(Test Condition 10, Test Circuit 2)  
The 0 V charge starting charger voltage (V0CHA) is defined as the voltage between the VDD pin and VM pin at which  
V
CO goes to “H” (VVM +0.1 V or higher) when the voltage V2 is gradually decreased from the starting condition of V1 =  
V2 = 0 V.  
(19) 0 V Battery Charge Inhibition Battery Voltage (Products with 0 V Battery Charging Function Is  
“Unavailable”)  
(Test Condition 11, Test Circuit 2)  
The 0 V charge inhibition charger voltage (V0INH) is defined as the voltage between the VDD pin and VSS pin at which  
V
CO goes to “H” (VVM +0.1 V or higher) when the voltage V1 is gradually increased from the starting condition of V1 =  
0 V, V2 = 4 V.  
Seiko Instruments Inc.  
13  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
R1 =  
220  
VDD  
IDD  
A
VDD  
VSS  
V1  
V1  
S-8211D Series  
S-8211D Series  
VM  
VSS  
VM  
DO  
CO  
DO  
CO  
V2  
V VDO  
V VCO  
V VDO  
V VCO  
COM  
COM  
Figure 5 Test Circuit 1  
Figure 6 Test Circuit 2  
IDD  
A
VDD  
VDD  
V1  
V1  
S-8211D Series  
S-8211D Series  
VSS  
VM  
VSS  
VM  
DO  
CO  
DO  
A
CO  
A
A IVM  
V2  
IDO  
V4  
ICO  
V3  
V2  
COM  
COM  
Figure 7 Test Circuit 3  
Figure 8 Test Circuit 4  
VDD  
V1  
S-8211D Series  
VSS  
VM  
DO  
CO  
Oscilloscope  
Oscilloscope  
V2  
COM  
Figure 9 Test Circuit 5  
14  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Operation  
Remark Refer to the “Battery Protection IC Connection Example”.  
1. Normal Status  
This IC monitors the voltage of the battery connected between the VDD pin and VSS pin and the voltage difference  
between the VM pin and VSS pin to control charging and discharging. When the battery voltage is in the range from  
overdischarge detection voltage (VDL) to overcharge detection voltage (VCU), and the VM pin voltage is not more than  
the discharge overcurrent detection voltage (VDIOV), the IC turns both the charging and discharging control FETs on.  
This condition is called the normal status, and in this condition charging and discharging can be carried out freely.  
The resistance (RVMD) between the VM pin and VDD pin, and the resistance (RVMS) between the VM pin and VSS pin  
are not connected in the normal status.  
Caution When the battery is connected for the first time, discharging may not be enabled. In this case, short  
the VM pin and VSS pin or connect the charger to restore the normal status.  
2. Overcharge Status  
When the battery voltage becomes higher than overcharge detection voltage (VCU) during charging in the normal  
status and detection continues for the overcharge detection delay time (tCU) or longer, the S-8211D Series turns the  
charging control FET off to stop charging. This condition is called the overcharge status.  
The resistance (RVMD) between the VM pin and VDD pin, and the resistance (RVMS) between the VM pin and VSS pin  
are not connected in the overcharge status.  
The overcharge status is released in the following two cases ( (1) and (2) ).  
(1) In the case that the VM pin voltage is higher than or equal to charger detection voltage (VCHA), and is lower than  
the discharge overcurrent detection voltage (VDIOV), S-8211D Series releases the overcharge status when the  
battery voltage falls below the overcharge release voltage (VCL).  
(2) In the case that the VM pin voltage is higher than or equal to the discharge overcurrent detection voltage (VDIOV),  
S-8211D Series releases the overcharge status when the battery voltage falls below the overcharge detection  
voltage (VCU).  
When the discharge is started by connecting a load after the overcharge detection, the VM pin voltage rises more  
than the voltage at VSS pin due to the Vf voltage of the parasitic diode. This is because the discharge current  
flows through the parasitic diode in the charging control FET. If this VM pin voltage is higher than or equal to the  
discharge overcurrent detection voltage (VDIOV), S-8211D Series releases the overcharge status when the battery  
voltage is lower than or equal to the overcharge detection voltage (VCU).  
Cautions 1. If the battery is charged to a voltage higher than overcharge detection voltage (VCU) and the  
battery voltage does not fall below overcharge detection voltage (VCU) even when a heavy load is  
connected, discharge overcurrent detection and load short-circuiting detection do not function  
until the battery voltage falls below overcharge detection voltage (VCU). Since an actual battery  
has an internal impedance of tens of m, the battery voltage drops immediately after a heavy  
load that causes overcurrent is connected, and discharge overcurrent detection and load short-  
circuiting detection function.  
2. When a charger is connected after overcharge detection, the overcharge status is not released  
even if the battery voltage is below overcharge release voltage (VCL). The overcharge status is  
released when the VM pin voltage goes over charger detection voltage (VCHA) by removing the  
charger.  
Seiko Instruments Inc.  
15  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
3. Overdischarge Status  
With shutdown function  
When the battery voltage falls below overdischarge detection voltage (VDL) during discharging in the normal status  
and the detection continues for the overdischarge detection delay time (tDL) or longer, the S-8211D Series turns the  
discharging control FET off to stop discharging. This condition is called the overdischarge status. Under the  
overdischarge status, the VM pin voltage is pulled up by the resistor between the VM pin and VDD pin in the IC  
(RVMD). When voltage difference between the VM pin and VDD pin then is 1.3 V (Typ.) or lower, the current  
consumption is reduced to the power-down current consumption (IPDN). This condition is called the power-down  
status.  
The resistance (RVMS) between the VM pin and VSS pin is not connected in the power-down status and the  
overdischarge status.  
The power-down status is released when a charger is connected and the voltage difference between the VM pin and  
VDD pin becomes 1.3 V (typ.) or higher.  
When a battery in the overdischarge status is connected to a charger and provided that the VM pin voltage is lower  
than charger detection voltage (VCHA), the S-8211D Series releases the overdischarge status and turns the  
discharging FET on when the battery voltage reaches overdischarge detection voltage (VDL) or higher.  
When a battery in the overdischarge status is connected to a charger and provided that the VM pin voltage is not  
lower than charger detection voltage (VCHA), the S-8211D Series releases the overdischarge status when the battery  
voltage reaches overdischarge release voltage (VDU) or higher.  
Without shutdown function  
When the battery voltage falls below overdischarge detection voltage (VDL) during discharging in the normal status  
and the detection continues for the overdischarge detection delay time (tDL) or longer, the S-8211D Series turns the  
discharging control FET off to stop discharging. This condition is called the overdischarge status. Under the  
overdischarge status, the VM pin voltage is pulled up by the resistor between the VM pin and VDD pin in the IC  
(RVMD).  
The resistance (RVMS) between the VM pin and VSS pin is not connected in the overdischarge status.  
When a battery in the overdischarge status is connected to a charger and provided that the VM pin voltage is lower  
than charger detection voltage (VCHA), the S-8211D Series releases the overdischarge status and turns the  
discharging FET on when the battery voltage reaches overdischarge detection voltage (VDL) or higher.  
When a battery in the overdischarge status is connected to a charger and provided that the VM pin voltage is not  
lower than charger detection voltage (VCHA), the S-8211D Series releases the overdischarge status when the battery  
voltage reaches overdischarge release voltage (VDU) or higher.  
4. Discharge Overcurrent Status (Discharge Overcurrent, Load Short-circuiting)  
When a battery in the normal status is in the status where the voltage of the VM pin is equal to or higher than the  
discharge overcurrent detection voltage because the discharge current is higher than the specified value and the  
status lasts for the discharge overcurrent detection delay time, the discharge control FET is turned off and  
discharging is stopped. This status is called the discharge overcurrent status.  
In the discharge overcurrent status, the VM pin and VSS pin are shorted by the resistor between VM pin and VSS pin  
(RVMS) in the IC. However, the voltage of the VM pin is at the VDD potential due to the load as long as the load is  
connected. When the load is disconnected, the VM pin returns to the VSS potential.  
This IC detects the status when the impedance between the EB+ pin and EBpin (Refer to the Figure 13) increases  
and is equal to the impedance that enables automatic restoration and the voltage at the VM pin returns to discharge  
overcurrent detection voltage (VDIOV) or lower, the discharge overcurrent status is restored to the normal status.  
Even if the connected impedance is smaller than automatic restoration level, the S-8211D Series will be restored to  
the normal status from discharge overcurrent detection status when the voltage at the VM pin becomes the discharge  
overcurrent detection voltage (VDIOV) or lower by connecting the charger.  
The resistance (RVMD) between the VM pin and VDD pin is not connected in the discharge overcurrent detection  
status.  
16  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
5. Detection for irregular charging current  
During charging a battery which is in the normal status, if the VM pin voltage becomes lower than the charger  
detection voltage (VCHA) and this status is held longer than the overcharge detection delay time (tCU), S-8211D turns  
off the charge-control FET to stop charging. This is detection for irregular charging current.  
This function works in the case that the DO pin voltage is in “H”, and the VM pin voltage becomes lower than the  
charger detection voltage (VCHA). Thus if the irregular charger current flows in the battery in the overdischarge status,  
S-8211D turns off the charge-control FET to stop charging; the DO pin voltage goes in “H” so that the battery voltage  
becomes higher than the overdischarge detection voltage, and after the overcharge detection delay time (tcu).  
The status irregular charging current detection is released by the lower potential difference between the VM and VSS  
pin than the charger detection voltage (VCHA).  
6. 0 V Battery Charging Function “Available”  
This function is used to recharge a connected battery whose voltage is 0 V due to self-discharge. When the 0 V  
battery charge starting charger voltage (V0CHA) or a higher voltage is applied between the EB+ and EBpins by  
connecting a charger, the charging control FET gate is fixed to the VDD pin voltage.  
When the voltage between the gate and source of the charging control FET becomes equal to or higher than the turn-  
on voltage due to the charger voltage, the charging control FET is turned on to start charging. At this time, the  
discharging control FET is off and the charging current flows through the internal parasitic diode in the discharging  
control FET. When the battery voltage becomes equal to or higher than overdischarge release voltage (VDU), the S-  
8211D Series enters the normal status.  
Caution Some battery providers do not recommend charging for a completely self-discharged battery.  
Please ask the battery provider to determine whether to enable or inhibit the 0 V battery charging  
function.  
7. 0 V Battery Charging Function “Unavailable”  
This function inhibits recharging when a battery that is internally short-circuited (0 V battery) is connected. When the  
battery voltage is the 0 V battery charge inhibition battery voltage (V0INH) or lower, the charging control FET gate is  
fixed to the EBpin voltage to inhibit charging. When the battery voltage is the 0 V battery charge inhibition battery  
voltage (V0INH) or higher, charging can be performed.  
Caution Some battery providers do not recommend charging for a completely self-discharged battery.  
Please ask the battery provider to determine whether to enable or inhibit the 0 V battery charging  
function.  
Seiko Instruments Inc.  
17  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
9. Delay Circuit  
The detection delay times are determined by dividing a clock of approximately 3.5 kHz by the counter.  
Remark1. The discharge overcurrent detection delay time (tDIOV) and the load short-circuiting detection delay time  
(tSHORT) start when the discharge overcurrent detection voltage (VDIOV) is detected. When the load short-  
circuiting detection voltage (VSHORT) is detected over the load short-circuiting detection delay time (tSHORT  
)
after the detection of discharge overcurrent detection voltage (VDIOV), the S-8211D turns the discharging  
control FET off within tSHORT from the time of detecting VSHORT  
.
VDD  
DO Pin  
tD  
0 tD tSHORT  
Time  
VSS  
Load short-circuiting detection delay time (tSHORT  
VDD  
)
VSHORT  
VM Pin  
VDIOV  
VSS  
Time  
Figure 10  
2. With shutdown function  
When any overcurrent is detected and the overcurrent continues for longer than the overdischarge  
detection delay time (tDL) without the load being released, the status changes to the power-down status at  
the point where the battery voltage falls below overdischarge detection voltage (VDL).  
When the battery voltage falls below overdischarge detection voltage (VDL) due to overcurrent, the S-  
8211D Series turns the discharging control FET off via overcurrent detection. In this case, if the recovery  
of the battery voltage is so slow that the battery voltage after the overdischarge detection delay time is  
still lower than the overdischarge detection voltage, S-8211D Series shifts to the power-down status.  
Without shutdown function  
When any overcurrent is detected and the overcurrent continues for longer than the overdischarge  
detection delay time (tDL) without the load being released, the status changes to the overdischarge status  
at the point where the battery voltage falls below overdischarge detection voltage (VDL).  
When the battery voltage falls below overdischarge detection voltage (VDL) due to overcurrent, the S-  
8211D Series turns the discharging control FET off via overcurrent detection. In this case, if the recovery  
of the battery voltage is so slow that the battery voltage after the overdischarge detection delay time is  
still lower than the overdischarge detection voltage, S-8211D Series shifts to the overdischarge status.  
18  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Timing Chart  
(1) Overcharge Detection, Overdischarge Detection  
VCU  
VCL (VCU VHC  
)
Battery voltage  
VDU (VDL + VHD  
)
VDL  
VDD  
DO pin voltage  
VSS  
VDD  
CO pin voltage  
VM pin voltage  
VSS  
VEB  
VDD  
VDIOV  
VSS  
VEB−  
Charger connection  
Load connection  
Overcharge detection delay time (t
CU  
)
Overdischarge detection delay time (t
DL)  
(1) (3)  
(1) (2)  
(1)  
*1  
Mode  
*1. (1) : Normal mode  
(2) : Overcharge mode  
(3) : Overdischarge mode  
Remark The charger is assumed to charge with a constant current.  
Figure 11  
Seiko Instruments Inc.  
19  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
(2) Discharge Overcurrent Detection  
VCU  
V
CL (VCU VHC  
)
Battery voltage  
VDU (VDL + VHD  
)
VDL  
VDD  
DO pin voltage  
VSS  
VDD  
CO pin voltage  
VM pin voltage  
VSS  
VDD  
VSHORT  
VDIOV  
VSS  
Load connection  
Discharge overcurrent  
detection delay time (tDIOV  
Load short-circuiting  
detection delay time (tSHORT  
)
)
(1)  
(2)  
(1)  
(2)  
(1)  
*1  
Mode  
*1. (1) : Normal mode  
(2) : Discharge overcurrent mode  
Remark The charger is assumed to charge with a constant current.  
Figure 12  
20  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
(3) Charger Detection  
VCU  
VCL (VCU  
VHC  
)
Battery voltage  
VDU (VDL  
+
VHD  
)
VDL  
VDD  
DO pin voltage  
VSS  
VDD  
CO pin voltage  
VM pin voltage  
VSS  
VDD  
VSS  
VCHA  
Charger connection  
Load connection  
In case VM pin voltage < VCHA  
Overdischarge is released at the  
Overdischarge detection  
delay time (tDL  
overdischarge detection voltage (VDL  
)
)
(1)  
(2)  
(1)  
Mode*1  
*1. (1) : Normal mode  
(2) : Overdischarge mode  
Remark The charger is assumed to charge with a constant current.  
Figure 13  
Seiko Instruments Inc.  
21  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
(4) Detection for irregular charging current  
VCU  
VCL (VCU  
Battery voltage  
VDU (VDL  
VHC  
)
+
VDL  
VHD  
)
VDD  
DO pin voltage  
VSS  
VDD  
CO pin voltage  
VM pin voltage  
VSS  
VDD  
VSS  
VCHA  
Charger connection  
Load connection  
Overdischarge detection  
delay time (tDL  
Abnormal charging current detection delay time  
( = Overcharge detection delay time (tCU))  
)
(3)  
(1)  
(1)  
(2)  
(1)  
*1  
Mode  
*1. (1) : Normal mode  
(2) : Overdischarge mode  
(3) : Overcharge mode  
Remark The charger is assumed to charge with a constant current.  
Figure 14  
22  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Battery Protection IC Connection Example  
EB+  
R1  
VDD  
Battery C1  
S-8211D Series  
VSS  
DO  
CO  
VM  
R2  
FET1  
FET2  
EB−  
Figure 15  
Table 12 Constants for External Components  
Symbol  
FET1  
Part  
Purpose  
Typ.  
Min.  
Max.  
Remark  
Threshold voltage Overdischarge detection  
N-channel  
MOS FET  
voltage *1  
Discharge control  
Gate to source withstanding voltage ≥  
Charger voltage *2  
Threshold voltage Overdischarge detection  
N-channel  
MOS FET  
voltage *1  
FET2  
Charge control  
Gate to source withstanding voltage ≥  
Charger voltage *2  
Resistance should be as small as possible to  
avoid lowering the overcharge detection  
accuracy due to current consumption. *3  
Connect a capacitor of 0.022 µF or higher  
between VDD pin and VSS pin. *4  
Select as large a resistance as possible to  
prevent current when a charger is connected  
in reverse. *5  
ESD protection,  
R1  
C1  
R2  
Resistor  
Capacitor  
Resistor  
220 Ω  
0.1 µF  
2 kΩ  
100 Ω  
0.022 µF  
300 Ω  
330 Ω  
1.0 µF  
4 kΩ  
For power fluctuation  
For power fluctuation  
Protection for reverse  
connection of a charger  
*1. If the threshold voltage of an FET is low, the FET may not cut the charging current. If an FET with a threshold voltage  
equal to or higher than the overdischarge detection voltage is used, discharging may be stopped before overdischarge is  
detected.  
*2. If the withstanding voltage between the gate and source is lower than the charger voltage, the FET may be destroyed.  
*3. If R1 has a high resistance, the voltage between VDD pin and VSS pin may exceed the absolute maximum rating when a  
charger is connected in reverse since the current flows from the charger to the IC. Insert a resistor of 100 or higher as  
R1 for ESD protection.  
*4. If a capacitor of less than 0.022 µF is connected to C1, DO pin may oscillate when load short-circuiting is detected. Be  
sure to connect a capacitor of 0.022 µF or higher to C1.  
*5. If R2 has a resistance higher than 4 k, the charging current may not be cut when a high-voltage charger is connected.  
Caution  
1. The above constants may be changed without notice.  
2. It has not been confirmed whether the operation is normal or not in circuits other than the above  
example of connection. In addition, the example of connection shown above and the constant do not  
guarantee proper operation. Perform through evaluation using the actual application to set the  
constant.  
Seiko Instruments Inc.  
23  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Precautions  
The application conditions for the input voltage, output voltage, and load current should not exceed the package  
power dissipation.  
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic  
protection circuit.  
SII claims no responsibility for any and all disputes arising out of or in connection with any infringement by products  
including this IC of patents owned by a third party.  
24  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Characteristics (Typical Data)  
1. Current Consumption  
(1) IOPE vs. Ta  
(2) IPDN vs. Ta  
0.16  
6
0.14  
0.12  
0.10  
0.08  
0.06  
0.04  
0.02  
0
5
4
3
2
1
0
40 25  
0
25  
Ta [°C]  
50  
7585  
4025  
0
25  
50  
7585  
Ta [°C]  
(3) IOPE vs. VDD  
6
5
4
3
2
1
0
4
8
0
2
6
VDD [V]  
2. Overcharge Detection / Release Voltage, Overdischarge Detection / Release Voltage, Overcurrent  
Detection Voltage, and Delay Time  
(1) VCU vs. Ta  
(2) VCL vs. Ta  
4.350  
4.345  
4.340  
4.335  
4.330  
4.325  
4.320  
4.315  
4.125  
4.115  
4.105  
4.095  
4.085  
4.075  
4.065  
4.055  
4.045  
4.035  
4.025  
4.310  
4.305  
4.300  
4025  
0
25  
50  
7585  
0
4025  
25  
50  
7585  
Ta [°C]  
Ta [°C]  
(3) VDU vs. Ta  
2.95  
(4) VDL vs. Ta  
2.60  
2.58  
2.56  
2.54  
2.52  
2.50  
2.48  
2.46  
2.44  
2.42  
2.40  
2.94  
2.93  
2.92  
2.91  
2.90  
2.89  
2.88  
2.87  
2.86  
2.85  
40 25  
0
25  
50  
7585  
40 25  
0
25  
50  
7585  
Ta [°C]  
Ta [°C]  
Seiko Instruments Inc.  
25  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
(5) tCU vs. Ta  
(6) tCL vs. Ta  
1.50  
1.45  
1.40  
1.35  
50  
48  
46  
44  
42  
40  
38  
36  
34  
32  
30  
1.30  
1.25  
1.20  
1.15  
1.10  
1.05  
1.00  
40 25  
0
25  
50  
7585  
40 25  
0
25  
50  
7585  
Ta [°C]  
Ta [°C]  
(7) tDU vs. Ta  
(8) tDL vs. Ta  
2.85  
2.75  
2.65  
2.55  
200  
190  
180  
170  
2.45  
2.35  
160  
150  
2.25  
2.15  
2.05  
140  
130  
120  
1.95  
1.85  
110  
100  
40 25  
0
25  
50  
7585  
40 25  
0
25  
50  
7585  
7585  
7585  
Ta [°C]  
Ta [°C]  
(9) VDIOV vs. Ta  
(10) tDIOV vs. VDD  
14  
13  
12  
11  
10  
9
0.175  
0.170  
0.165  
0.160  
0.155  
0.150  
0.145  
0.140  
8
7
0.135  
0.130  
0.125  
6
5
4
4025  
0
25  
50  
3.0  
3.5  
4.0  
4.5  
Ta [°C]  
VDD [V]  
(11) tDIOV vs. Ta  
14  
13  
12  
11  
10  
9
8
7
6
5
4
4025  
0
25  
50  
Ta [°C]  
26  
Seiko Instruments Inc.  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
(12) VSHORT vs. Ta  
(13) tSHORT vs. VDD  
0.65  
0.63  
0.61  
0.59  
0.75  
0.70  
0.65  
0.60  
0.57  
0.55  
0.55  
0.50  
0.53  
0.51  
0.49  
0.45  
0.40  
0.35  
0.47  
0.45  
0.30  
0.25  
4025  
0
25  
50  
7585  
3.0  
3.5  
4.0  
4.5  
Ta [°C]  
VDD [V]  
(14) tSHORT vs. Ta  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
4025  
0
25  
50  
7585  
Ta [°C]  
3. CO pin / DO pin  
(1) ICOH vs. VCO  
(2) ICOL vs. VCO  
0
0.5  
0.1  
0.2  
0.3  
0.4  
0.4  
0.3  
0.2  
0.1  
0.5  
0
0
1
2
CO [V]  
3
4
0
1
2
3
4
V
V
CO [V]  
(3) IDOH vs. VDO  
(4) IDOL vs. VDO  
0
0.20  
0.05  
0.10  
0.15  
0.20  
0.25  
0.15  
0.10  
0.05  
0.30  
0
0
0.5  
1.0  
VDO [V]  
1.5  
0
1
2
DO [V]  
3
4
V
Seiko Instruments Inc.  
27  
BATTERY PROTECTION IC FOR 1-CELL PACK  
S-8211D Series  
Rev.4.5_00  
„ Marking Specifications  
(1) SOT-23-5  
SOT-23-5  
Top view  
(1) to (3):  
Product Code (refer to Product Name vs. Product Code)  
5
4
(4)  
:
Lot number  
(1) (2) (3) (4)  
1
2
3
Product Name vs. Product Code  
Product Code  
(2)  
Product Name  
(1)  
R
(3)  
B
E
H
I
J
K
L
S-8211DAB-M5T1G  
S-8211DAE-M5T1G  
S-8211DAH-M5T1G  
S-8211DAI-M5T1G  
S-8211DAJ-M5T1G  
S-8211DAK-M5T1G  
S-8211DAL-M5T1G  
S-8211DAM-M5T1G  
2
2
2
2
2
2
2
2
R
R
R
R
R
R
R
M
Remark  
Please contact our sales office for the products other than those specified above.  
(2) SNT-6A  
SNT-6A  
Top view  
(1) to (3):  
(4) to (6):  
Product Code (refer to Product Name vs. Product Code)  
Lot number  
1
2
3
6
5
4
Product Name vs. Product Code  
Product Code  
Product Name  
(1)  
R
R
R
R
(2)  
2
(3)  
B
S-8211DAB-I6T1G  
S-8211DAE-I6T1G  
S-8211DAF-I6T1G  
S-8211DAG-I6T1G  
2
2
2
E
F
G
Remark  
Please contact our sales office for the products other than those specified above.  
28  
Seiko Instruments Inc.  
2.9±0.2  
1.9±0.2  
4
5
+0.1  
-0.06  
1
2
3
0.16  
0.95±0.1  
0.4±0.1  
No. MP005-A-P-SD-1.2  
TITLE  
SOT235-A-PKG Dimensions  
MP005-A-P-SD-1.2  
No.  
SCALE  
UNIT  
mm  
Seiko Instruments Inc.  
4.0±0.1(10 pitches:40.0±0.2)  
+0.1  
-0  
2.0±0.05  
0.25±0.1  
ø1.5  
+0.2  
-0  
4.0±0.1  
ø1.0  
1.4±0.2  
3.2±0.2  
3
4
2 1  
5
Feed direction  
No. MP005-A-C-SD-2.1  
TITLE  
SOT235-A-Carrier Tape  
MP005-A-C-SD-2.1  
No.  
SCALE  
UNIT  
mm  
Seiko Instruments Inc.  
12.5max.  
9.0±0.3  
Enlarged drawing in the central part  
ø13±0.2  
(60°)  
(60°)  
No. MP005-A-R-SD-1.1  
TITLE  
SOT235-A-Reel  
MP005-A-R-SD-1.1  
No.  
SCALE  
UNIT  
QTY.  
3,000  
mm  
Seiko Instruments Inc.  
1.57±0.03  
6
5
4
+0.05  
-0.02  
0.08  
1
2
3
0.5  
0.48±0.02  
0.2±0.05  
No. PG006-A-P-SD-2.0  
SNT-6A-A-PKG Dimensions  
PG006-A-P-SD-2.0  
TITLE  
No.  
SCALE  
UNIT  
mm  
Seiko Instruments Inc.  
+0.1  
-0  
ø1.5  
4.0±0.1  
2.0±0.05  
0.25±0.05  
+0.1  
ø0.5  
-0  
4.0±0.1  
0.65±0.05  
1.85±0.05  
5°  
3
2
5
1
6
4
Feed direction  
No. PG006-A-C-SD-1.0  
TITLE  
SNT-6A-A-Carrier Tape  
PG006-A-C-SD-1.0  
No.  
SCALE  
UNIT  
mm  
Seiko Instruments Inc.  
12.5max.  
9.0±0.3  
Enlarged drawing in the central part  
ø13±0.2  
(60°)  
(60°)  
No. PG006-A-R-SD-1.0  
SNT-6A-A-Reel  
TITLE  
No.  
PG006-A-R-SD-1.0  
SCALE  
UNIT  
QTY.  
5,000  
mm  
Seiko Instruments Inc.  
0.52  
1.36  
0.52  
0.3  
0.3  
0.2  
0.3  
0.2  
Caution Making the wire pattern under the package is possible. However, note that the package  
may be upraised due to the thickness made by the silk screen printing and of a solder  
resist on the pattern because this package does not have the standoff.  
No. PG006-A-L-SD-3.0  
SNT-6A-A-Land Recommendation  
TITLE  
No.  
PG006-A-L-SD-3.0  
SCALE  
UNIT  
mm  
Seiko Instruments Inc.  
·
·
The information described herein is subject to change without notice.  
Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein  
whose related industrial properties, patents, or other rights belong to third parties. The application circuit  
examples explain typical applications of the products, and do not guarantee the success of any specific  
mass-production design.  
·
·
·
When the products described herein are regulated products subject to the Wassenaar Arrangement or other  
agreements, they may not be exported without authorization from the appropriate governmental authority.  
Use of the information described herein for other purposes and/or reproduction or copying without the  
express permission of Seiko Instruments Inc. is strictly prohibited.  
The products described herein cannot be used as part of any device or equipment affecting the human  
body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus  
installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc.  
Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the  
failure or malfunction of semiconductor products may occur. The user of these products should therefore  
give thorough consideration to safety design, including redundancy, fire-prevention measures, and  
malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.  
·

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