3.8 Battery Charging Block Interface
The AAT3681A is a high performance battery charger designed to charge single Cell
lithiumion/polymer batteries with up to 500mA of current from an external power source.
It is a stand-alone charging solution, with just one external component required For complete
functionality. The AAT3681A precisely regulates battery charge voltage and current for 4.2V lithium-
ion/polymer battery cells.
The adapter/USB charge input constant current level can be programmed up to 500mA for rapid
charging applications.
The AAT3681A has four basic modes for the battery charge cycle:
pre-conditioning/trickle charge; constant current/fast charge; constant voltage; and end of charge.
3. TECHNICAL BRIEF
- 30 -
Figure 3-8. Charging IC Interface
(10V,K,X5R)
CHARGING IC
(1%)
(10V,K,X5R)
1u
C126
2V8_VIO
VCHARGE
NA
R120
NA
R118
1.8K
R119
0.015u
C127
160K
R124
VBAT
1u
C125
NA
R123
R125
100K
R121
NA
2
_FAULT
_STATUS
3
6
EN
GND
5
8
IREF
11
PGND
TIME
4
7
V2P8
10
VBAT
VIN
1
VSEN_TEMP
9
U101
ISL9201IRZ-T
0
R122
C128
1u
VCHARGE
CHG_EN_TEST
CHG_STATUS
CHG_EN
CHARGE_DETECT
Содержание KG270
Страница 1: ...Date April 2007 Issue 1 0 Service Manual Model KG270 MG160 Service Manual KG270 MG160 ...
Страница 3: ... 4 ...
Страница 81: ...5 DOWNLOAD 82 5 DOWNLOAD 5 1 Download Setup Configure system like figure 5 1 Figure 9 1 Download Setup ...
Страница 87: ... 88 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM ...
Страница 92: ... 93 8 PCB LAYOUT ...
Страница 93: ... 94 8 PCB LAYOUT ...
Страница 104: ... 105 10 CALIBRATION 10 2 3 Click SETTING Memu 10 2 4 Setup Ezlooks menu such as the following fugure KG278 ...
Страница 106: ...10 CALIBRATION 107 10 2 7 Select MODEL 10 2 8 Click START for RF calibration 10 2 9 RF Calibration finish KG278 ...
Страница 107: ...10 CALIBRATION 108 10 2 10 Calibration data will be saved to the following folder ...
Страница 113: ... 114 ...
Страница 124: ...Note ...
Страница 125: ...Note ...