Nokia RM-497 - Page 136

USB
Connector
TYP OTG
Function
Baseband
Name
Baseband
Pin
PMU Name PMU Pin
VBUS I/O 5 V DC
SUPPLY to
USB
N/C VBUS F11
Table 8 Charger electrical specification
Symbol Parameter CONDITION Min Type Max Unit
VMBAT Main Battery
Voltage
Charging
Range
0 4.3 V
fSW USB Switch
Mode
Charger
Frequency
- 2 - MHz
RSENSE External
Current
Sense
Resistor
99 100 101 mΩ
Table 9 Wall charger
Symbol Parameter CONDITION Min Type Max Unit
VCHGR Wall
Adapter
Input
Voltage
Range
External PNP
device
required
4.65 - 9.3 V
No charging 9.3 - 20
Wall
Adapter
Presence
Detection
4.37 4.5 4.64 V
Trickle
Charging
Current
Battery
voltage is
lower than
3.3V
75 85 100 mA
Constant
Charging
Current
Battery
present
430 450 475 mA
RM-497
System Module
Page 5 – 22 COMPANY CONFIDENTIAL Issue 1
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