SP3239E 查看數據表（PDF） - Exar Corporation
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SP3239E Datasheet PDF : 16 Pages
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VCC = +5V
+
C1 –
–5V
+5V
+
C2 –
–5V
Figure 11. Charge Pump — Phase 1
VCC = +5V
+
C1 –
Figure 12. Charge Pump — Phase 2
+
C2 –
-5.5V
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
VCC = +5V
+
C1 –
–5V
+5V
+
C2 –
–5V
Figure 13. Charge Pump — Phase 3
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
VCC = +5V
+
C1 –
+5.5V
+
C2 –
Figure 14. Charge Pump — Phase 4
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
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SP3249E_100_013111
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