Q2426B Просмотр технического описания (PDF) - Unspecified
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Q2426B Datasheet PDF : 81 Pages
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2.19.2 Typical implementation
WM_PRJ_Q2400_PTS_002 - 002
24th January 2003
2.19.2.1 Capacitor
Shottky
Diode
+VBATT
Vin Vout
En Gnd
Regulator
2.5 V ±10%
(With very Low Iq)
470
1K
VCC-RTC
Ex : 470uF
Estimated range with 470 µF Capacitor : ~30 seconds.
2.19.2.2 Super Capacitor
Shottky
Diode
+VBATT
Vin Vout
470
1K
VCC_RTC
En Gnd
Regulator
2.5 V ±10%
(With very Low Iq)
Ex : EECE0EL474S
(Panasonic)
Estimated range with 0.47 Farad Gold Cap : 2 hours min.
Note : the Gold Capacitor maximum voltage is 2.5 V.
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