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参数资料
| 型号： | KIT34675EPEVBE |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 10/14页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION FOR MC34675 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MC34675 |
| 主要属性： | 1 芯锂离子电池 |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板，CD |
Test Setup with the Evaluation Board
Table 4. The Settings of the Pin Headers for an Embedded Charger Connecting to the System
JP3
JP4
JP5
JP6
JP7
JP8
Open
Shorted
Shorted
Shorted
Shorted
Shorted
7.2
Connector Pads
There are 10 connecting pads (J1 to J10 with corresponding names) on the evaluation board to
let the user simply connect the board to their system. The GND pads link power ground of the
MC34675. The INPUT pad connects an external DC power supply to the evaluation board. The
PPR, CHG, EN, DET, and ISET pads link to the corresponding pins of the MC34675. The VL pad
is used for the user to supply a logic I/O voltage to the evaluation board, in case the application
system needs a logic voltage level to interface to the PPR and the CHG pins of the MC34675.
The VBAT pad connects the positive pole of the Li+ battery being charged.
7.3
Test points
The KIT34675 evaluation board provides 7 signal test points and 3 ground test points for users
to conveniently hookup multi-meters and oscilloscope probes to evaluate the MC34675. The test
points connect the pins of the MC34675 with the same name directly.
8
Test Setup with the Evaluation Board
The test setup is shown in Figure 8 . Connect a DC power source with a larger than 1.5A current
limit to the INPUT pad on the evaluation board. Connect the positive and negative polarities of
the Li+ battery to the VBAT pad and the GND pad on the evaluation board respectively. Use a
current meter and a voltage meter to measure the charge current and the voltage respectively.
Turn on the power supply and the evaluation board starts charging the battery.
Using the High Input Voltage Charger for Single Cell Li-Ion Batteries , Rev. 1
10
Freescale Semiconductor
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