s-8254aazft-tb-g Seiko Instruments Inc., s-8254aazft-tb-g Datasheet - Page 4

• Manufacturer Part Number: s-8254aazft-tb-g
• Description: Battery Protection Ic For 3-serial- Or 4-serial-cell Pack
• Manufacturer: Seiko Instruments Inc.

4
BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK
S-8254A Series
*1. The NC pin is electrically open. The NC pin can be connected to VDD or VSS.
Pin Configuration
Pin No.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Symbol
NC
NC
COP
VMP
DOP
CDT
CCT
VDD
VINI
VSS
VC4
VC3
VC2
VC1
SEL
CTL
*1
*1
CDT
CCT
COP
VMP
DOP
VSS
VINI
NC
FET gate connection pin for charge control (Nch open drain output)
Pin for voltage detection between VC1 and VMP (Pin for overcurrent 3
detection)
FET gate connection pin for discharge control FET (CMOS output)
Pin for voltage detection between VSS and VINI (Pin for overcurrent detection
1,2)
Capacitor connection pin for delay for overdischarge detection,delay for
overcurrent detection 1
Capacitor connection pin for delay for overcharge current
Input pin for negative power supply,
Connection pin for battery 4’s negative voltage
No connection
No connection
Pin for switching 3-series or 4-series cell
V
Control of charge FET and discharge FET
Connection pin for battery 3’s negative voltage,
Connection pin for battery 4’s positive voltage
Connection pin for battery 2’s negative voltage,
Connection pin for battery 3’s positive voltage
Connection pin for battery 1’s negative voltage,
Connection pin for battery 2’s positive voltage
Connection pin for battery 1’s positive voltage
Input pin for positive power supply,
Connection pin for battery 1’s positive voltage
SS
level: 3-series cell, V
1
2
3
4
5
6
7
8
Seiko Instruments Inc.
16-Pin TSSOP
Top view
Figure 2
Table 2
DD
level : 4-series cell
Description
16
15
14
13
12
11
10
9
VDD
VC1
VC2
VC3
VC4
CTL
SEL
NC
Rev.4.3
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