參數(shù)資料
型號(hào)： HA16103FPK
廠商： Hitachi,Ltd.
英文描述： Watchdog Timer
中文描述： 看門狗定時(shí)器
文件頁(yè)數(shù)： 15/21頁(yè)
文件大?。?/td> 106K
代理商： HA16103FPK
HA16103 FPJ/FPK
15
Precautions
If the IC’s ground potential varies suddenly by several volts due to wiring impedance (see figure 6), a false
RES
pulse may be output. The reason for this is that potentials in the
RES
pulse generating circuit change
together with the V
OUT
-GND potential. The reference potential of the comparator in figure 7 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 highcurrent ground lines.
Increase the capacitance (Co) used to smooth the V
OUT
output.
Wiring impedance
HA16103PJ/FPJ
Co
R
L
SW2
SW1
V
IGN
Wiring impedance
Relay or other load
Figure 6 Typical Circuit
GND
RES
Vout
Vcont
V
CC
–
C
RES
Wiring impedance
+
Figure 7
RES
Comparator
相關(guān)PDF資料
PDF描述
HA16103 Watchdog Timer
HA16103FPJ Watchdog Timer
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA16103PJ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Supply Supervisor
HA16107FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:PWM Switching Regulator for High-performance Voltage Mode Control
HA16107FP-E 制造商:Renesas Electronics 功能描述:PWM Switching Regulator 16-Pin SOP Bulk
HA16107P 制造商:Hitachi 功能描述:Swithed-Mode Power Supply Controller, Voltage Mode Type, Bi-Polar, 16 Pin, Plastic, DIP
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