Battery Current Consumption Monitor - LG KF510C Service Manual

3.12 Battery current consumption monitor

KF510 use a current monitoring function to calculate the battery capacity and the remaining time, as
monitoring current flow from the battery thru 47mohm resistor.
Current Monitor
VSUPPLY
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VBAT
C256
0.1u
C257
2.2u
U205
R231
5
47mohm LOAD
4
VIN IOUT
ZXCT1010E5TA
Figure 18 Current monitor circuit
1
NC
2
GND
3
C264
1u
- 49 -
3. TECHNICAL BRIEF
LOAD
R232
2.2K
LGE Internal Use Only