Specifications

WM_PRJ_Q2400_PTS_001 - 003
6th November 2002
confidential ©
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2.18.2.2 Super Capacitor
Regulator
2.5 V
±
10%
(With very Low Iq)
+VBATT
470 1K
Ex : EECE0EL474S
(Panasonic)
Shottky
Diode
En
Vou
t
Gn
d
Vin
VCC_RTC
Estimated range with 0.47 Farad Gold Cap: 2 hours min.
Note: the Gold Capacitor maximum voltage is 2.5 V.
2.18.2.3 Battery cell with regulator
Regulator
2.5 V
±
10%
(With very Low Iq)
+VBATT
2 K
1K
En
Vou
t
Gnd
Vin
Shottky
Diode
VCC_RTC
Estimated range with 2 mAh battery rechargeable battery: ~3 days.
Warning:
Before battery cell assembly insure that cell voltage is lower than 2,75V to
avoid any damage to the WISMO module.