3. TECHNICAL BRIEF
- 38 -
In order to reduce time for trickle charging, additional circuit(Pre-charge circuit) was included.
This circuit has supplied Max 160mA current into the battery additionally.
So call it, it reduce trickle charging time
IBIAS
330
R107
0.2
R103
VCHARGE
U102
1
D1
2
D2
3
D3
6
D4
7
D5
D6
8
4
G
S
5
TPCF8102-TE85L-F
B8
VBATSENSE
VCHG
A5
R3
VMEMSEL
NC_T15
T15
NC_B5
B5
NC_B7
B7
G16
NC_G16
R1
NC_R1
A6
GATEDRIVE
T5
GND_NET1
ISENSE
A7
1u
C127
CRST
VBAT
10u
C128
D101
CUS02
R749
10K
R748
0
R746
10
VCHARGE
R745
1.5K
VBAT
R747
1K
0.1u
C703
2
5
6
3
1
4
UMX1NTN
Q701
R750
NA
PRE_CHARGE
Figure 3-21. CIRCUIT FOR BATTERY CHARGING AT AD6537B
NORMAL
CHARGING
Pre-CHARGING
Summary of Contents for S5000
Page 1: ...Date November 2005 Issue 1 0 Service Manual S5000 Service Manual Model S5000 ...
Page 3: ... 4 ...
Page 82: ...4 TROUBLE SHOOTING 83 4 12 KEY backlight Trouble Test Points Figure 4 21 ...
Page 101: ...5 DOWNLOAD AND CALIBRATION 102 9 Phone test Finish is shown in below screen ...
Page 103: ... 104 ...
Page 111: ... 112 8 PCB LAYOUT ...
Page 112: ... 113 8 PCB LAYOUT ...
Page 113: ... 114 ...
Page 121: ...10 STAND ALONE TEST 122 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 125: ... 126 ...
Page 126: ... 127 ...
Page 128: ... 129 12 EXPLODED VIEW REPLACEMENT PART LIST ...
Page 129: ... 130 ...