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參數(shù)資料
| 型號： | S-80718AN-DF-X |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | HIGH-PRECISION VOLTAGE DETECTOR |
| 中文描述： | 高精度電壓檢測器 |
| 文件頁數(shù)： | 6/42頁 |
| 文件大小： | 285K |
| 代理商： | S-80718AN-DF-X |
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Seiko Instruments Inc.
5
1.1 The discharge characteristics of lithium batteries are
shown in Figure 4. When using the S-805 Series,
the service life can be detected over t1. When
using the S-807 Series, it can be detected over t2.
This improvement in detection precision of the S-
807 Series means that batteries can be used over
more of their service life.
1.2 Detecting a power voltage at two points
It is usual for the CPU to detect the power voltage
at two points, one to caution and the other to reset.
The service life of battery may also be detected at
two points, one to caution and the other to request
immediate replacement.
Two voltage values to be detected (No. 1 and No.
2) do not cross and the voltage can be detected
correctly.
1.3 Voltage drop when modifying detection voltage
If no voltage to be detected is suitable, the voltage
can be set higher in Nch open-drain output
products by using a resistor divider. (Example :
when detecting 6V or 9V.)
When 8V is detected using the S-8054HN (a
4V
±
5% device), the -Vdet tolerance becomes
2
×
4.00
×±
0.05=0.8V (R1=R2). In constrast, the S-
80740AN (a 4V
±
2.4% device) can hold down the
tolerance to 2
×
4.00
×±
0.024=0.384V (R1=R2).
Must be close
V
t
No. 2
No. 1
Figure 5
t1
S-805
t
Figure 4
t2
R2
R1
Figure 6
Nch open-drain
output product
S-807
XXAN/SN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-80718SL-AF-X | HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719AL-AG-X | HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719AN-DG-X | HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719SL-AG- | HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719SN-DG-X | HIGH-PRECISION VOLTAGE DETECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-80718SL-AF-X | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719AL | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719AL-AG-X | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719AN | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:HIGH-PRECISION VOLTAGE DETECTOR |
| S-80719AN-DG-X | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:HIGH-PRECISION VOLTAGE DETECTOR |
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