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參數(shù)資料
| 型號(hào)： | S-8423 |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | Battery Backup IC(后備電池芯片) |
| 中文描述： | 備用電池集成電路（后備電池芯片） |
| 文件頁數(shù)： | 2/38頁 |
| 文件大?。?/td> | 409K |
| 代理商： | S-8423 |
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Seiko Instruments Inc.
1
BATTERY BACKUP IC
S-8423 Series
The S-8423 Series is a CMOS IC designed for use in the switching
circuits of main and backup power supplies of 3-V or 5-V operation
microcomputers. It consists of two voltage regulators, three voltage
detectors, a switchover circuit, and a control circuit. In addition to
being able to switch from primary to backup power supplies, the S-
8423 Series has three types of voltage detection output signal
corresponding to the power supply voltage. The special sequence for
switch control prevents unnecessary exhaustion of the backup power
supply; this feature is suitable for structuring backup systems.
n
Features
n
Applications
Low power consumption
Normal operation: 43
μ
A max. (V
IN
=6 V)
Backup: 2.1
μ
A max.
Voltage requlator
Small input/output voltage differences :
0.35 V max. (I
OUT
=50mA)
Output voltage tolerance :
±
2%
Three built-in voltage detectors (CS, PREEND, RESET)
Detection voltage tolerance:
±
2%
Special sequence
Backup voltage is not output, if the primary power supply voltage
does not reach the RESET voltage that activates a CPU.
Video camera recorder
Still video camera
Memory card
SRAM backup equipment
n
Selection Guide
(Ta=25
°
C)
*
V
RO
=V
OUT
** The last digit ”X” of the model No. changes depending upon the package form. ( X=S : 8-pin SSOP, X=T : 8-pin TSSOP )
Model No.**
Output voltage*(V)
CS detection
voltage(V)
CS release voltage(V)
RESET detection
voltage(V)
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
S-8423AFX
S-8423NFX
S-8423LFX
3.23
3.135
4.90
3.30
3.200
5.00
3.37
3.265
5.10
3.919
3.234
4.507
4.000
3.300
4.600
4.081
3.366
4.693
4.003
3.315
4.609
4.100
3.400
4.719
4.197
3.485
4.828
2.253
2.351
2.253
2.300
2.400
2.300
2.347
2.449
2.347
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-8430AF | STEP UP & DOWN VOLTAGE REGULATOR |
| S-8435CF-SD-T2 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| S-8435DF-S7-T1 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| S-8435DF-S7-T2 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| S-8435GF-WD-T1 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-8423AFS | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:BATTERY BACKUP IC |
| S-8423LFS | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:BATTERY BACKUP IC |
| S-8423NFS | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:BATTERY BACKUP IC |
| S-8424AAAFT-TBG | 功能描述:電池管理 Composite IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| S-8424AAAFT-TB-G | 功能描述:電池管理 COMPOSITE IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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