S-8215A Series
www.sii-ic.com
BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK
(SECONDARY PROTECTION)
Rev.2.5
_00
© SII Semiconductor Corporation, 2010-2017
The S-8215A Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates high-accuracy
voltage detection circuits and delay circuits.
Short-circuiting between cells makes it possible for serial connection of three cells to five cells.
Features
•
High-accuracy voltage detection circuit for each cell
Overcharge detection voltage n (n = 1 to 5)
3.600 V to 4.700 V (50 mV step)
Accuracy
±25
mV (Ta =
+25°C)
Accuracy
±30
mV (Ta =
−5°C
to
+55°C)
Overcharge hysteresis voltage n (n = 1 to 5)
0.0 mV to
−550
mV (50 mV step)
−300
mV to
−550
mV
Accuracy
±20%
−100
mV to
−250
mV
Accuracy
±50
mV
0.0 mV to
−50
mV
Accuracy
±25
mV
Delay times for overcharge detection can be set by an internal circuit only (External capacitors are unnecessary).
Output form is selectable:
CMOS output, Nch open-drain output, Pch open-drain output
Output logic is selectable:
Active "H", active "L"
High-withstand voltage:
Absolute maximum rating 28 V
Wide operation voltage range:
3.6 V to 26 V
Wide operation temperature range:
Ta =
−40°C
to
+85°C
Low current consumption
At V
CUn
−
1.0 V for each cell:
3.0
μA
max. (Ta =
+25°C)
At 2.3 V for each cell:
1.7
μA
max. (Ta =
+25°C)
Lead-free (Sn 100%), halogen-free
•
•
•
•
•
•
•
•
Application
•
Lithium-ion rechargeable battery pack (for secondary protection)
Packages
•
•
TMSOP-8
SNT-8A
1
BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)
Rev.2.5
_00
S-8215A Series
Block Diagram
VDD
VC1
Overcharge
detection
comparator 1
+
−
Reference voltage 1
VC2
Overcharge
detection
comparator 2
+
−
Reference voltage 2
Oscillator
Overcharge
detection / release
delay circuit
CO
*1
VC3
Overcharge
detection
comparator 3
+
−
Control
circuit
Reference voltage 3
VC4
Overcharge
detection
comparator 4
+
−
Reference voltage 4
VC5
Overcharge
detection
comparator 5
+
−
Reference voltage 5
VSS
*1.
The CO pin is connected only to Nch transistor in the case of Nch open-drain output.
The CO pin is connected only to Pch transistor in the case of Pch open-drain output.
Remark
The diodes in the figure are parasitic diodes.
Figure 1
2
BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)
Rev.2.5
_00
S-8215A Series
Product Name Structure
1. Product name
S-8215A xx
-
xxxx
U
Environmental code
U:
Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications
*1
K8T2: TMSOP-8, Tape
I8T1: SNT-8A, Tape
Serial code
*2
Sequentially set from AA to AZ
*1.
Refer to the tape drawing.
*2.
Refer to "3.
Product name list".
2. Packages
Table 1 Package Drawing Codes
Package Name
TMSOP-8
SNT-8A
Dimension
FM008-A-P-SD
PH008-A-P-SD
Tape
FM008-A-C-SD
PH008-A-C-SD
Reel
FM008-A-R-SD
PH008-A-R-SD
Land
−
PH008-A-L-SD
3
BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)
Rev.2.5
_00
S-8215A Series
3. Product name list
3. 1 TMSOP-8
Table 2
Overcharge
Detection
Voltage
[V
CU
]
4.300 V
4.275 V
4.150 V
4.350 V
4.325 V
4.220 V
4.325 V
4.250 V
4.400 V
4.150 V
4.150 V
4.150 V
4.150 V
4.350 V
4.275 V
4.275 V
4.500 V
4.275 V
4.275 V
3.750 V
4.300 V
Overcharge
Hysteresis
Voltage
[V
HC
]
−0.300
V
−0.050
V
−0.250
V
−0.250
V
−0.050
V
−0.100
V
−0.300
V
−0.250
V
−0.100
V
−0.050
V
−0.500
V
−0.050
V
−0.500
V
−0.250
V
−0.500
V
−0.050
V
−0.100
V
−0.200
V
−0.050
V
−0.100
V
−0.300
V
Overcharge
Detection
Delay Time
[t
CU
]
4.0 s
2.0 s
1.0 s
2.0 s
1.0 s
1.0 s
1.0 s
1.0 s
2.0 s
2.0 s
2.0 s
2.0 s
2.0 s
4.0 s
1.0 s
1.0 s
4.0 s
2.0 s
2.0 s
1.0 s
1.0 s
Product Name
S-8215AAA-K8T2U
S-8215AAB-K8T2U
S-8215AAC-K8T2U
S-8215AAD-K8T2U
S-8215AAE-K8T2U
S-8215AAF-K8T2U
S-8215AAH-K8T2U
S-8215AAI-K8T2U
S-8215AAJ-K8T2U
S-8215AAK-K8T2U
S-8215AAL-K8T2U
S-8215AAM-K8T2U
S-8215AAN-K8T2U
S-8215AAO-K8T2U
S-8215AAP-K8T2U
S-8215AAQ-K8T2U
S-8215AAR-K8T2U
S-8215AAS-K8T2U
S-8215AAT-K8T2U
S-8215AAU-K8T2U
S-8215AAV-K8T2U
Remark
Output Form
Output Logic
CMOS output
Active "H"
Nch open-drain output Active "L"
CMOS output
Active "H"
CMOS output
Active "H"
Nch open-drain output Active "L"
CMOS output
Active "H"
Nch open-drain output Active "L"
CMOS output
Active "H"
CMOS output
Active "H"
Nch open-drain output Active "L"
Nch open-drain output Active "L"
CMOS output
Active "L"
CMOS output
Active "L"
CMOS output
Active "H"
CMOS output
Active "H"
CMOS output
Active "H"
CMOS output
Active "H"
CMOS output
Active "L"
CMOS output
Active "L"
CMOS output
Active "H"
CMOS output
Active "H"
Please contact our sales office for the products with detection voltage value other than those specified
above.
3. 2 SNT-8A
Table 3
Overcharge
Detection
Voltage
[V
CU
]
4.300 V
4.220 V
4.300 V
Overcharge
Hysteresis
Voltage
[V
HC
]
−0.300
V
−0.050
V
−0.300
V
Overcharge
Detection
Delay Time
[t
CU
]
4.0 s
1.0 s
1.0 s
Product Name
S-8215AAA-I8T1U
S-8215AAG-I8T1U
S-8215AAV-I8T1U
Remark
Output Form
Output Logic
CMOS output
Active "H"
CMOS output
Active "H"
CMOS output
Active "H"
Please contact our sales office for the products with detection voltage value other than those specified
above.
4
BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)
Rev.2.5
_00
S-8215A Series
Pin Configurations
1. TMSOP-8
Table 4
Pin No.
Top view
1
2
3
4
8
7
6
5
Symbol
VDD
VC1
VC2
VC3
VC4
VC5
VSS
CO
Description
Input pin for positive power supply
Positive voltage connection pin of battery 1
Negative voltage connection pin of battery 1
Positive voltage connection pin of battery 2
Negative voltage connection pin of battery 2
Positive voltage connection pin of battery 3
Negative voltage connection pin of battery 3
Positive voltage connection pin of battery 4
Negative voltage connection pin of battery 4
Positive voltage connection pin of battery 5
Input pin for negative power supply
Negative voltage connection pin of battery 5
FET gate connection pin for charge control
1
2
3
4
5
Figure 2
6
7
8
2. SNT-8A
Table 5
Pin No. Symbol
1
VDD
2
VC1
Top view
1
2
3
4
8
7
6
5
3
4
5
VC2
VC3
VC4
VC5
VSS
CO
Figure 3
6
7
8
Description
Input pin for positive power supply
Positive voltage connection pin of battery 1
Negative voltage connection pin of battery 1
Positive voltage connection pin of battery 2
Negative voltage connection pin of battery 2
Positive voltage connection pin of battery 3
Negative voltage connection pin of battery 3
Positive voltage connection pin of battery 4
Negative voltage connection pin of battery 4
Positive voltage connection pin of battery 5
Input pin for negative power supply
Negative voltage connection pin of battery 5
FET gate connection pin for charge control
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
