s-8424a Seiko Instruments Inc., s-8424a Datasheet - Page 2

• Manufacturer Part Number: s-8424a
• Description: Battery Backup Switching Ic
• Manufacturer: Seiko Instruments Inc.

2
BATTERY BACKUP SWITCHING IC
S-8424A Series
Selection Guide
Caution Set the CS voltage so that the switch voltage (V
Remark 1. The selection range is as follows.
S-8424AAAFT-TB-G
S-8424AAAPA-TF-G
S-8424AABFT-TB-G
S-8424AACFT-TB-G
S-8424AADFT-TB-G
S-8424AAEFT-TB-G
S-8424AAFFT-TB-G
S-8424AAGFT-TB-G
S-8424AAHFT-TB-G
S-8424AAJFT-TB-G
S-8424AAKFT-TB-G
Type
2. If a product with a voltage other than above is required, contact our sales representative.
RESET
Part No.
V
−V
−V
−V
V
RO
SW1
DET1
DET2
DET3
, V
:
detection voltage (−V
OUT
:
:
:
8-Pin SON(B)
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
8-Pin TSSOP
Package
: 2.3 to 5.4 V (0.1 V steps)
2.4 to 5.3 V (0.1 V steps)
1.7 to 3.4 V (0.1 V steps )
1.7 to 3.4 V (0.1 V steps)
+V
S-8424A xx xx - xx - G
DET1
× 0.85 or +V
3.000
3.300
3.150
3.100
3.200
3.200
5.000
3.200
2.800
5.000
V
RO
Voltage
Output
(V)
3.000
3.300
3.200
5.000
3.150
3.200
2.800
5.000
3.100
3.200
Seiko Instruments Inc.
V
DET2
OUT
DET1
).
− V
× 0.77
3.300
4.000
3.300
4.600
4.200
4.400
4.400
4.600
4.400
4.600
CS Voltage
DET1
(V)
+ V
3.401
4.129
3.401
4.753
4.337
4.545
4.545
4.753
4.545
4.753
IC direction in tape specification
Package code
Serial code
DET1
TB: 8-Pin TSSOP
TF: 8-Pin SON(B)
FT: 8-Pin TSSOP
PA: 8-Pin SON(B)
− V
RESET Voltage
2.200
2.300
2.400
2.300
2.300
2.400
2.400
2.550
2.200
2.400
SW1
DET2
) is equal to or greater than the
(V)
+ V
2.312
2.420
2.528
2.420
2.420
2.528
2.528
2.690
2.312
2.528
DET2
− V
2.600
2.500
2.600
2.500
2.500
2.700
2.600
2.600
2.600
2.600
DET3
PREEND
Voltage
(V)
+ V
2.748
2.640
2.748
2.640
2.640
2.748
2.748
2.856
2.748
2.748
DET3
Switch Voltage
+ V
+ V
+ V
+ V
+ V
+ V
+ V
+ V
+ V
+ V
DET1
DET1
DET1
DET1
DET1
DET1
DET1
DET1
DET1
DET1
V
Rev.2.2
(V)
SW1
× 0.85
× 0.77
× 0.85
× 0.77
× 0.77
× 0.77
× 0.77
× 0.77
× 0.77
× 0.77
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