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參數資料
| 型號： | ADP3801 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | High Frequency Switch Mode Dual Li-Ion Battery Chargers(高頻開關模式雙鋰離子充電器) |
| 中文描述： | 高頻開關雙鋰離子電池充電器（高頻開關模式雙鋰離子充電器） |
| 文件頁數： | 19/20頁 |
| 文件大?。?/td> | 278K |
| 代理商： | ADP3801 |
ADP3801/ADP3802
–19–
REV. 0
Board Layout Suggestions
When laying out the printed circuit board, the following check-
list should be used to ensure proper operation of the ADP3801
and ADP3802. These items are also illustrated graphically in
the layout diagram on the evaluation board application note.
Check the following in your layout:
1) The IC ground must return to a) the power and b) the signal
grounds with as short of leads as possible. If a double layer
PCB board is used and a ground plane is available, connect
all grounded parts directly to the ground plane. The ground
returns to the anode of the Schottky diode and the minus
terminal of C
IN
should have as short of lead lengths as possible.
2) Connect the IC’s current sense pins (CS+ and CS–) to R
CS
with as short of leads (<0.5 inch) as possible.
3) Route the CS+ and CS– traces together with minimum spac-
ing. The filter capacitors should be close to the IC.
4) Connect the positive side of C
IN
as close as possible to the
source of the P-channel MOSFET (or the emitter of the
PNP). This capacitor provides the ac current to the pass
transistor.
5) Connect the input decoupling capacitor (0.l
μ
F) close to the
VCC input of the IC. This capacitor carries the DRV peak
currents.
6) Connect the 0.1
μ
F LDO decoupling capacitor as close as
possible to the VL pin.
7) The
RESET
pin has an internal pull-up, and should be pulled
low with an external resistor. The
RESET
pin is high imped-
ance and should not be allowed to float.
相關PDF資料 |
PDF描述 |
|---|---|
| ADP3802 | High Frequency Switch Mode Dual Li-Ion Battery Chargers(高頻開關模式雙鋰離子充電器) |
| ADP3804JRU-125 | Aluminum Electrolytic Radial Leaded Bi-Polar Capacitor; Capacitance: 220uF; Voltage: 35V; Case Size: 12.5x20 mm; Packaging: Bulk |
| ADP3804JRU-126 | Aluminum Electrolytic Radial Leaded Bi-Polar Capacitor; Capacitance: 330uF; Voltage: 35V; Case Size: 12.5x20 mm; Packaging: Bulk |
| ADP3804 | Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.50V) 8-TSSOP -40 to 110 |
| ADP3804JRU | Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.50V) 8-TSSOP -40 to 110 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADP38010001RR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADP3801AR | 制造商:Analog Devices 功能描述: |
| ADP3801AR-REEL | 制造商:Rochester Electronics LLC 功能描述:SWITCH MODE DUAL CHARGER/LDO REGULATOR - Tape and Reel |
| ADP3802 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Frequency Switch Mode Dual Li-Ion Battery Chargers |
| ADP3802AR | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Frequency Switch Mode Dual Li-Ion Battery Chargers |
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