S-8426AAA-J8T1X Datasheet, PDF (4/37 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

BATTERY BACKUP SWITCHING IC
S-8426A Series
 Pin Configurations
Rev.2.0_02
8-Pin TSSOP
Top view
1
8
2
7
3
6
4
5
Figure 2
8-Pin SOP(JEDEC)
Top view
1
8
2
7
3
6
4
5
Figure 3
Pin No.
1
2
3
4
5
6
7
8
Symbol
VSS
PREEND
VBAT^*1
CS
RESET
VOUT^*1
VIN^*1
VRO^*1
Table 2
Description
Ground
Output pin of PREEND voltage detector
Backup power supply input pin
Output pin of CS voltage detector
Output pin of RESET voltage detector
Output pin of voltage regulator 2
Primary power supply input pin
Output pin of voltage regulator 1
*1. Mount capacitors between VSS (GND pin) and the VIN, VBAT, VOUT,
and VRO pins. (Refer to the “ Standard Circuit”)
Pin No.
1
2
3
4
5
6
7
8
Symbol
VSS
PREEND
VBAT^*1
CS
RESET
VOUT^*1
VIN^*1
VRO^*1
Table 3
Description
Ground
Output pin of PREEND voltage detector
Backup power supply input pin
Output pin of CS voltage detector
Output pin of RESET voltage detector
Output pin of voltage regulator 2
Primary power supply input pin
Output pin of voltage regulator 1
*1. Mount capacitors between VSS (GND pin) and the VIN, VBAT, VOUT,
and VRO pins. (Refer to the “ Standard Circuit”)
4