3. TECHNICAL BRIEF
- 39 -
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
(2012)
(1%)
C125
1u
CUS02
D102
A5
VCHG
VMEMSEL
R3
VBATSENSE
B8
NC_B5
B5
NC_B7
B7
G16
NC_G16
R1
NC_R1
T15
NC_T15
GATEDRIVE
A6
T5
GND_NET1
A7
ISENSE
4.7u
C126
VBAT
4
S
5
Q100
TPCF8102-TE85L-F
D1
1
D2
2
D3
3
D4
6
D5
7
D6
8
G
R104
0.2
R105
330
VCHARGE
(5%,1/10W)
ERHZ0000757
R225
7.5K
R228
20
R226
10K
100K
R610
VBAT
NA
R224
2V8_VEXT
2
56
31
4
UMX1NTN
Q401
15
R219
LD200
1u
C220
0
R222
1K
R223
NA
R227
VCHARGE
390
R220
3
1
2SC5585
Q200
2
VCHARGE
RPWRON
Figure 3-21. CIRCUIT FOR BATTERY CHARGING AT AD6537B
NORMAL
CHARGING
Pre-CHARGING
Содержание C3380
Страница 1: ...Service Manual Model C3380 Date November 2005 Issue 1 0 Service Manual C3380 ...
Страница 3: ... 4 ...
Страница 83: ...4 TROUBLE SHOOTING 84 4 11 KEY backlight Trouble Test Points Figure 4 22 ...
Страница 98: ...4 TROUBLE SHOOTING 99 Yes No Yes No Replace M201 Establish a call Replace U101 Software Re_download ...
Страница 109: ...Note 110 ...
Страница 116: ... 117 8 PCB LAYOUT ...
Страница 117: ... 118 8 PCB LAYOUT ...
Страница 125: ...10 STAND ALONE TEST 126 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Страница 129: ... 130 ...
Страница 131: ... 132 ...