S-8264A/B Series
www.sii-ic.com
© Seiko Instruments Inc., 2005-2011
BATTERY PROTECTION IC FOR 2-SERIAL
TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
Rev.3.1
_00
The S-8264A/B Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates a high-accuracy
voltage detection circuit and a delay circuit. Short-circuits between cells accommodate series connection of two to four cells.
Features
High-accuracy voltage detection circuit for each cell
•
Overcharge detection voltage n (n
=
1 to 4)
4.20 V to 4.80 V (in 50 mV steps)
Accuracy :
±25
mV (+25°C), Accuracy :
±30
mV (−5°C to
+55°C)
•
Overcharge hysteresis voltage n (n
=
1 to 4)
−0.52 ±0.21
V,
−0.39 ±0.16
V,
−0.26 ±0.11
V,
−0.13 ±0.06
V, None
(2) Delay times for overcharge detection can be set by an internal circuit only (external capacitors are unnecessary)
(3) Output control function via CTL pin (S-8264A Series)
(4) Output latch function after overcharge detection (S-8264B Series)
(5) Output form and logic
CMOS output active “H”
(6) High withstand voltage devices
Absolute maximum rating : 26 V
(7) Wide operating voltage range
3.6 V to 24 V
(8) Wide operating temperature range
−40°C
to
+85°C
(9) Low current consumption
•
At 3.5 V for each cell
5.0
μA
max. (+25°C)
•
At 2.3 V for each cell
4.0
μA
max. (+25°C)
*1
(10) Lead-free, Sn 100%, halogen-free
*1.
Refer to “
Product Name Structure”
for details.
(1)
Application
•
Lithium-ion rechargeable battery packs (for secondary protection)
Packages
•
SNT-8A
•
8-Pin TSSOP
Seiko Instruments Inc.
1
BATTERY PROTECTION IC FOR 2-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
S-8264A/B Series
Product Name Structure
1. Product Name
S-8264
x
xx
-
xxxx
x
Environmental code
U:
Lead-free (Sn 100%), halogen-free
G:
Lead-free (for details, please contact our sales office)
Package abbreviation and IC packing specification
I8T1 : SNT-8A, tape product
T8T1: 8-Pin TSSOP, tape product
Serial code
Sequentially set from AA to AZ
Product type
A:
Without CO pin output latch function
B:
With CO pin output latch function
*2
*1
Rev.3.1
_00
*1.
Refer to the tape specifications at the end of this book.
*2.
Refer to “3.
Product Name List”.
2. Package
Drawing Code
Tape
Reel
PH008-A-C-SD
PH008-A-R-SD
FT008-E-C-SD
FT008-E-R-SD
FT008-E-C-SD
FT008-E-R-S1
Package Name
SNT-8A
8-Pin TSSOP
Environmental code = G
Environmental code = U
Package
PH008-A-P-SD
FT008-A-P-SD
FT008-A-P-SD
Land
PH008-A-L-SD
⎯
4
Seiko Instruments Inc.
Rev.3.1
_00
BATTERY PROTECTION IC FOR 2-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
S-8264A/B Series
3. Product Name List
(1) S-8264A Series
Table 1 SNT-8A
Product Name / Item
S-8264AAA-I8T1x
S-8264AAB-I8T1x
S-8264AAC-I8T1x
S-8264AAD-I8T1x
S-8264AAE-I8T1x
S-8264AAF-I8T1x
S-8264AAG-I8T1x
S-8264AAH-I8T1x
S-8264AAI-I8T1x
S-8264AAJ-I8T1x
S-8264AAK-I8T1x
Overcharge Detection
Voltage [V
CU
]
4.45
±0.025
V
4.35
±0.025
V
4.50
±0.025
V
4.35
±0.025
V
4.30
±0.025
V
4.45
±0.025
V
4.30
±0.025
V
4.40
±0.025
V
4.40
±0.025
V
4.45
±0.025
V
4.35
±0.025
V
Overcharge Hysteresis
Voltage [V
HC
]
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
−0.39 ±0.16
V
Table 2 8-Pin TSSOP
Product Name / Item
S-8264AAA-T8T1x
S-8264AAB-T8T1x
(2) S-8264B Series
Table 3 SNT-8A
Product Name / Item
S-8264BAA-I8T1x
S-8264BAB-I8T1x
Overcharge Detection
Voltage [V
CU
]
4.45
±0.025
V
4.35
±0.025
V
Overcharge Hysteresis
Voltage [V
HC
]
−0.39 ±0.16
V
−0.39 ±0.16
V
Overcharge Detection
Delay Time [t
CU
]
4.0
±0.8
s
4.0
±0.8
s
Output Form
CMOS output active “H”
CMOS output active “H”
Overcharge Detection
Voltage [V
CU
]
4.45
±0.025
V
4.35
±0.025
V
Overcharge Hysteresis
Voltage [V
HC
]
−0.39 ±0.16
V
−0.39 ±0.16
V
Overcharge Detection
Delay Time [t
CU
]
4.0
±0.8
s
4.0
±0.8
s
Output Form
CMOS output active “H”
CMOS output active “H”
Overcharge Detection
Delay Time [t
CU
]
4.0
±0.8
s
4.0
±0.8
s
4.0
±0.8
s
2.0
±0.4
s
4.0
±0.8
s
2.0
±0.4
s
2.0
±0.4
s
4.0
±0.8
s
2.0
±0.4
s
5.65
±1.15
s
5.65
±1.15
s
Output Form
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
Remark 1.
Please contact our sales department for the products with detection voltage value other than those specified
above.
2.
x: G or U
3.
Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
5
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