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参数资料
| 型号： | MC13783VKR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 37/50页 |
| 文件大小： | 0K |
| 描述： | IC PWR MNGMNT ATLAS 3G 247MAPBGA |
| 标准包装： | 1,500 |
| 应用： | 手持/移动设备 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 247-TFBGA |
| 供应商设备封装： | 247-MAPBGA（10x10） |
| 包装： | 带卷 (TR) |
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Functional Description
Table 22. Charger Mode Selection (continued)
CHRGMOD1
VATLAS
VATLAS
VATLAS
GND
GND
GND
CHRGMOD0
GND
Hi Z
VATLAS
GND
Hi Z
VATLAS
Charger Mode
Separate Input Dual Path
Separate Input Single Path
Separate Input Serial Path
Reserved
Reserved
Reserved
4.4.1.1
Serial Path Configuration Example
In serial path configuration, the current path used for charging the battery is the same as the supply path
from charger to radio B+. Refer to the block diagram example in Figure 10 on page 37.
Transistors M1 and M2 control the charge current and provide a voltage clamping function in case of no
battery or in case of a dead battery to allow the application to operate. In both cases transistor M3 is
non-conducting and the battery is charged with a trickle charge current internal to the MC13783. The
transistor M3 is conducting in case the battery has to be connected to the application like for normal
operation or for standalone trickle charging. Transistor M2 is non-conducting in case the charger voltage
is too high. A current can be supplied from the battery to an accessory by having all transistors M1, M2
and M3 conducting.
BP or
Charger/USB
Input
M1
M2
R2
0.1 Ω
BP
M3
R1
20 m Ω
CHRGRAW
Vatlas
Hi Z
Battery
CHRGISNSP
BPFET
BP
BATTFET
BP Voltage
Regulator
and OV
FET Switching
Ctrl Logic
To Scaling and A/D
Protection
FETOVRD
FETCTRL
From Charger
Detection Block
Diff Amp
Diff Amp +
-
Charger
Detection
and OV
Block
2
Charge Path
Regulator
with Current
Limit and
OV
Protection
Chrg In
Error Amp
+
-
OC Curr Out
Comp
+
-
Chrg In
+
-
-
OC_REF
4
Voltage
Error Amp
+
-
ICHRG[3:0]
BP
Ref
To Scaling and +
A/D
Trickle
Charge
Control
3
ICHRGTR[2:0]
Bat In
Diff Amp
To USB
OVCTRL [1:0]
Voltage
+
-
3
VCHRG[2:0]
To Scaling and
A/D
Error Amp
Figure 10. Serial Path Interface Block Diagram
MC13783 Technical Data, Rev. 3.5
Freescale Semiconductor
37
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