CS8140 데이터 시트보기 (PDF) - Cherry semiconductor
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CS8140 Datasheet PDF : 12 Pages
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Application Diagrams
Battery
Ignition
C1*
0.1mF
(optional)
0.1mF
VIN
VOUT
CS8140
ENABLE
DELAY
Gnd
RESET
WDI
5V
C2**
10mF*
2.7kW
R***
Vcc
RESET
WATCHDOG
PORT
MICROPROCESSOR
*C1 is required if regulator is located far from the power source filter.
**C2 required for stability
***R ² 80k½
Figure 7. Application Diagram
9V
Switch
R1
110K
C1
0.1mF
VIN
VOUT
CS8140/1
RESET
ENABLE
CDelay
C2
0.1mF
WDI
Gnd
10mF
2.7k
Vcc
MICROPROCESSOR
RESET
WATCHDOG PORT
Figure 8. Applications diagram for CS8140. The CS8140 provides a 5V tightly regulated supply and control function to the microprocessor. In this
application, the microprocessor controls its own power down sequence (see text).
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