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參數資料
| 型號： | ADP3404 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | GSM Power Management System |
| 中文描述： | 手機電源管理系統 |
| 文件頁數： | 12/12頁 |
| 文件大?。?/td> | 149K |
| 代理商： | ADP3404 |
–12–
REV. 0
C
P
ADP3404
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
28-Lead Thin Shrink Small Outline (TSSOP)
(RU-28)
0.177 (4.50)
0.169 (4.30)
28
15
14
1
0.386 (9.80)
0.378 (9.60)
0.256 (6.50)
0.246 (6.25)
PIN 1
0.006 (0.15)
0.002 (0.05)
SEATING
PLANE
0.0118 (0.30)
0.0075 (0.19)
0.0256 (0.65)
BSC
0.0433 (1.10)
MAX
0.0079 (0.20)
0.0035 (0.090)
0.028 (0.70)
0.020 (0.50)
8
0
Charger Diode Selection
The diode shown in Figure 2 is used to prevent the battery from
discharging into the charger turn-on setting resistors, R1 and R2. A
Schottky diode is recommended to minimize the voltage difference
from the charger to the battery and the power dissipation. Choose
a diode with a current rating high enough to handle both the battery
charging current and the current the ADP3404 will draw if pow-
ered up during charging. The battery charging current is dependent
on the battery chemistry, and the charger circuit. The ADP3404
current will be dependent on the loading.
Printed Circuit Board Layout Considerations
Use the following general guidelines when designing printed
circuit boards:
1. Split the battery connection to the VBAT and SIMBAT pins
of the ADP3404. Use separate traces for each connection
and locate the input capacitors as close to the pins as possible.
2. SIM input and output capacitors should be returned to the
SIMGND and kept as close as possible to the ADP3404 to
minimize noise. Traces to the SIM charge pump capacitor
should be kept as short as possible to minimize noise.
3. VCCA and VTCXO capacitors should be returned to AGND.
4. VCC and VRTC capacitors should be returned to DGND.
5. Split the ground connections. Use separate traces or planes for
the analog, digital, and power grounds, and tie them together
at a single point, preferably close to the battery return.
相關PDF資料 |
PDF描述 |
|---|---|
| ADP3405ARU | Replaced by BQ29412 : Voltage Protection for 2-,3-or,4-Cell Lion Batteries (2nd Protection) 8-TSSOP -20 to 85 |
| ADP3405 | Replaced by BQ29412 : Voltage Protection for 2-,3-or,4-Cell Lion Batteries (2nd Protection) 8-TSSOP -20 to 85 |
| ADP3408ARU-25 | GSM Power Management System |
| ADP3408 | Replaced by BQ29415 : Voltage Protection for 2, 3, or 4 Cell LiIon Batteries (2nd Lev Protection) 8-SM8 -25 to 85 |
| ADP3408ARU-18 | GSM Power Management System |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADP3404ARU | 制造商:Analog Devices 功能描述:1-CHANNEL POWER SUPPLY SUPPORT CKT, 28 Pin Plastic SMT |
| ADP3404ARU-REEL | 制造商:Analog Devices 功能描述:GSM Power Management System Li-Ion/NiMH 0.175mA 2.45V 28-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:GSM POWER MANAGEMENT SYSTEM - Tape and Reel |
| ADP3404ARU-REEL7 | 制造商:Analog Devices 功能描述:GSM Power Management System Li-Ion/NiMH 0.175mA 2.45V 28-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:GSM POWER MANAGEMENT SYSTEM - Tape and Reel |
| ADP3404ARUZ-REEL7 | 制造商:Analog Devices 功能描述:GSM Power Management System Li-Ion/NiMH 0.175mA 2.45V 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:GSM MGMT SYS LI-ION/NIMH 0.175MA 2.45V 28TSSOP - Tape and Reel |
| ADP3405 | 制造商:AD 制造商全稱:Analog Devices 功能描述:GSM Power Management System |
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