参数资料
型号: MC34708VM
厂商: Freescale Semiconductor
文件页数: 77/159页
文件大小: 0K
描述: IC POWER MANAGEMENT 206MAPBGA
标准包装: 160
应用: 通用
电源电压: 1.8 V ~ 4.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 206-LFBGA
供应商设备封装: 206-MAPBGA(13x13)
包装: 托盘
Functional Block Description
7.6
7.7
Battery Management
BATTERY CHARGER NO LONGER SUPPORTED ON
MC34708.
Analog to Digital Converter
The ADC core is a 10-bit converter. The ADC core and logic run at an internally generated frequency of approximately 1.33 MHz.
The ADC is supplied from VCORE. The ADC core has an integrated auto calibration circuit which reduces the offset and gain
errors.
7.7.1
Input Selector
The ADC has 16 input channels. Table 67 gives an overview of the characteristics of each of these channels.
Table 67. ADC Inputs
Channel
0
Signal read
Battery Voltage (BATTISNSN)
Input Level
0 – 4.8 V
Scaling
/2
Scaled Version
0 – 2.4 V
1
2
3
4
5
6
7
8
Battery Current (BATTISNSN-BATTISNSP)
Application Supply (BPSNS)
Die temperature
Reserved
USB Voltage (VBUS)
Reserved
Reserved
Coincell Voltage
-80 mV – +80 mV
0 to 4.8 V
-40 – 150 °C
Reserved
0 – 6.0 V
Reserved
Reserved
0 – 3.6 V
x15
/2
x1
Reserved
x0.4
Reserved
Reserved
x2/3
-1.2 to +1.2 V
0 – 2.4 V
1.2 – 2.4 V
Reserved
0 – 2.4 V
Reserved
Reserved
0 – 2.4 V
9
ADIN9
0 – 2.4 V
x1
0 – 2.4 V
10
11
ADIN10
ADIN11
0 – 2.4 V
0 – 2.4 V
x1
x1
0 – 2.4 V
0 – 2.4 V
12
13
14
15
ADIN12/TSX1
ADIN13/TSX2
ADIN14/TSY1
ADIN15/TSY2
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
x1/x2
x1/x2
x1/x2
x1/x2
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
Notes
62. Equivalent to -4.0 A to +4.0 A of current with a 20 mOhm sense resistor.
63. Input must not exceed the BP voltage.
64. Input must not exceed BP or VCORE.
Some of the internal signals are first scaled to adapt the signal range to the input range of the ADC. The battery current is
indirectly read out by the voltage drop over the resistor in the charge path and battery path respectively. For details on scaling,
MC34708
Analog Integrated Circuit Device Data ?
77
Freescale Semiconductor
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