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參數資料
| 型號： | HA16113 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dual Watchdog Timers |
| 中文描述： | 雙看門狗定時器 |
| 文件頁數： | 16/18頁 |
| 文件大?。?/td> | 102K |
| 代理商： | HA16113 |
HA16113FPJ
16
Precautions
If the IC’s ground potential varies suddenly by several volts due to wiring impedance (see figure 7), a false
RES
pulse may be output. The reason for this is that potentials in the
RES
pulse generating circuit change
together with the Vout-GND potential. The reference potential of the comparator in figure 8 and the
potential of the external capacitor have different impedances as seen from the comparator, causing a
momentary inversion. The solution is to stabilize the ground potential. Two ways of stabilizing the IC’s
ground line are:
Separate the IC’s ground line from high-current ground lines.
Increase the capacitance (Co) used to smooth the Vout output.
Wiring impedance
HA16113FPJ
Co
R
L
SW2
SW1
V
Wiring impedance
Relay or other load
Figure 1 Typical Circuit
GND
RES
Vout
Vcont
V
+
–
C
RES
Wiring impedance
Figure 2
RES
Comparator
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相關代理商/技術參數 |
參數描述 |
|---|---|
| HA16113FPJ | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dual Watchdog Timers |
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| HA16114FPJ | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Switching Regulator for Chopper Type DC/DC Converter |
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