MAX870 데이터 시트보기 (PDF) - Maxim Integrated
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MAX870 Datasheet PDF : 8 Pages
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Switched-Capacitor Voltage Inverters
Shutdown Control
If shutdown control is necessary, use the circuit in
Figure 8. The output resistance of the MAX870/MAX871
will typically be 20Ω plus two times the output resis-
tance of the buffer driving IN. The 0.1µF capacitor at
the IN pin absorbs the transient input currents of the
MAX870/MAX871.
The output resistance of the buffer driving the IN pin
can be reduced by connecting multiple buffers in par-
allel. The polarity of the shutdown signal can also be
changed by using a noninverting buffer to drive IN.
INPUT
3 C1-
IN 2
C1
MAX870
5 C1+ MAX871
CIN
0.1µF
4 GND
OUT 1
OUTPUT
C2
SHUTDOWN
LOGIC
SIGNAL
OFF
ON
___________________Chip Information
TRANSISTOR COUNT: 58
SUBSTRATE CONNECTED TO IN
Figure 8. Shutdown Control
________________________________________________________Package Information
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1997 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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