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Parameter
Description
USB_VBUS
USB detection
Power supply voltage
VRTC
of backup battery.
7.3. Charging Performance Specifications
Table 15: Charging Performance Specifications
Parameter
Trickle charging current
Trickle charging threshold voltage range
(15.62mV steps)
Weak battery threshold voltage range
(18.75mV steps)
Charge voltage range (25mV steps)
Charge voltage accuracy
Charge current range (90mA steps)
Charge current accuracy
Charge termination current: when charge
current is from 90 to 450mA;
Charge termination current: when charge
current is from 450 to 1440mA;
7.4. Operating Temperature
The operating temperature is listed in the following table.
Table 16: Operating Temperature
Parameter
Operating temperature range
Extended temperature range
SC20-A_Manual_R1.0
Conditions
Min.
81
2.5
3.0
4
90
Min.
Typ.
1)
-35
+25
2)
-40
Confidential / Released
Min.
Typ.
4.35
5.0
2.0
3.0
Typ.
Max.
90
99
2.796
2.984
3.2
3.581
4.2
4.775
+/-2
1440
+/-10
7
7.4
Max.
+65
+75
Max.
Unit
6.3
V
3.25
V
Unit
mA
V
V
V
%
mA
%
%
%
Unit
º C
º C
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