SP3232EBEN-L 데이터 시트보기 (PDF) - Exar Corporation
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SP3232EBEN-L Datasheet PDF : 22 Pages
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VCC = +5V
DESCRIPTION
+
C1 –
–5V
+5V
+
C2 –
–5V
Figure 13. Charge Pump — Phase 1
VCC = +5V
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
+
C1 –
+
C2 –
-5.5V
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
Figure 14. Charge Pump — Phase 2
[
T
]
+6V
a) C2+
GND 1
T
GND 2
b) C2-
T
-6V
Ch1 2.00V Ch2 2.00V M 1.00ms Ch1 5.48V
Figure 15. Charge Pump Waveforms
VCC = +5V
+
C1 –
–5V
+5V
+
C2 –
–5V
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
Figure 16. Charge Pump — Phase 3
VCC = +5V
+
C1 –
+5.5V
+
C2 –
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
Figure 17. Charge Pump — Phase 4
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
11
SP3222EB/SP3232EB_103_081414
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