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參數資料
| 型號： | MC33465N-47ATR |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 電源管理 |
| 英文描述： | Micropower Undervoltage Sensing Circuits with Programmable Ouput Delay |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | PLASTIC, SOT-23, 5 PIN |
| 文件頁數： | 6/8頁 |
| 文件大小： | 131K |
| 代理商： | MC33465N-47ATR |
MC33465
http://onsemi.com
6
Figure 12. Typical Open Drain Application
2
Input
1
Reset
Gnd
Gnd
R
VDD
Reset
VDD
CPU
5
CD
CD
MC33465
Series
Figure 13. Typical Complementary Output Application
2
Input
1
Reset
Gnd
Gnd
VDD
Reset
VDD
CPU
5
CD
CD
MC33465
Series
3
3
APPLICATION CIRCUIT INFORMATION
The MC33465 series are micropower undervoltage
sensing circuits which offer a programmable time delayed
output with the choice of either complementary output drive
or open drain output configurations. Figure 14 shows the
timing relationships between the input voltage and the
resulting circuit waveforms. When the input voltage (Vin)
exceeds the sense comparator threshold, the timing
capacitor
is
allowed to charge through the internal delay
resistor. When the output inverting driver threshold is
exceeded, the Reset output switches from a logic “0” to a
logic “1”. The top curve of Figure 11 provides the nominal
delay time for a given value of delay capacitance. When Vin
drops below the comparator threshold minus hysteresis
voltage, the delay capacitor discharges. When the
capacitance voltage drops below the inverting drive
threshold, the output switches from a logic “1” to a logic “0”.
The bottom curve in Figure 11 provides typical delay time
for given delay capacitance values. The inverting driver
threshold voltage is typically about Vin/2, as shown in
Figure 10.
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| MC33465N-48CTR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:ON Semiconductor 功能描述: |
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