S-8253A Datasheet, PDF (5/32 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK

Rev.3.7_00
BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK
S-8253A/B Series
„ Pin Configuration
DOP
COP
VMP
CTL
8-Pin TSSOP
Top view
1
8
2
7
3
6
4
5
Figure 3
VDD
VC1
VC2
VSS
Table 3 S-8253A Series
Pin No. Symbol
Description
1
DOP
Connection pin for discharge control FET gate
(CMOS output)
2
COP
Connection pin for charge control FET gate
(Nch open-drain output)
Pin for voltage detection between VDD and VMP
3
VMP
(Detection pin for overcurrent)
Input pin for charge / discharge control signal,
Pin for shortening test time
4
CTL ( L : Normal operation,
H : inhibit charge / discharge
M (V_DD × 1 / 2) : shorten test time)
5
VSS
Input pin for negative power supply,
Connection pin for negative voltage of battery 2
6
VC2
No connection ^*1
7
VC1
Connection pin for negative voltage of battery 1,
for positive voltage of battery 2
8
VDD
Input pin for positive power supply,
Connection pin for positive voltage of battery 1
*1. No connection is electrically open. This pin can be connected to VDD or VSS.
Remark Refer to the package drawings for the external views.
Table 4 S-8253B Series
Pin No. Symbol
Description
1
DOP
Connection pin for discharge control FET gate
(CMOS output)
2
COP
Connection pin for charge control FET gate
(Nch open-drain output)
3
VMP
Pin for voltage detection between VDD and VMP
(Detection pin for overcurrent)
Input pin for charge / discharge control signal,
pin for shortening test time
4
CTL ( L : Normal operation,
H : inhibit charge / discharge,
M (V_DD × 1 / 2) : shorten test time)
5
VSS
Input pin for negative power supply,
Connection pin for negative voltage of battery 3
6
VC2
Connection pin for negative voltage of battery 2,
for positive voltage of battery 3
7
VC1
Connection pin for negative voltage of battery 1,
for positive voltage of battery 2
8
VDD
Input pin for positive power supply,
Connection pin for positive voltage of battery 1
Remark Refer to the package drawings for the external views.
Seiko Instruments Inc.
5