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參數(shù)資料
| 型號(hào)： | ADP3502 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | CDMA Power Management System |
| 中文描述： | CDMA的電源管理系統(tǒng) |
| 文件頁(yè)數(shù)： | 1/36頁(yè) |
| 文件大小： | 714K |
| 代理商： | ADP3502 |
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REV. 0
a
ADP3502
CDMA Power Management System
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.comFEATURES
11 LDOs Optimized for Specific CDMA Subsystems
4 Backup LDOs for Standby Mode Operation
Ultra Low Standby Supply Current
High Accuracy Battery Charger (0.7%)
3 Li-Ion Battery Charge Modes
5 mA Precharge
Low Current Charge
Full Current Charge
Integrated RTC
Ambient Temperature: –30 C to +85 C
64-Lead 7 mm 7 mm 1 mm TQFP Package
APPLICATIONS
CDMA/CDMA2000/PCS Handsets
FUNCTIONAL BLOCK DIAGRAM
POWER ON
KEYPAD I/F
GPIO
SERIAL I/F
32kHz OUTPUT
CONTROL
RESET
OUTPUT
DELAY 10ms
INTERRUPT
CONTROL
LDO
CONTROL
RESET
RTC
COUNTER
STAY-ALIVE
TIMER
LOGIC
BLOCK
ANALOG
BLOCK
BATTERY
CHARGER
REFERENCE
LDO1 TO LDO11
VOLTAGE
DETECTOR
ADP3502
GENERAL DESCRIPTION
The ADP3502 is a multifunction chip optimized for CDMA-1x
cell phone power management. It offers a total power solution
for the handset baseband and RF section, including LDOs to
power 11 subsystems. Also integrated are a real-time clock
(RTC), serial bus interface, and charging control for Li-Ion/
Li-Polymer batteries. Sophisticated controls are available for
power-up during battery charging, keypad interface, GPIO/INT
function, and RTC function.
The ADP3502 is optimized for CDMA handsets powered by
single-cell Li-Ion batteries. Its high level of integration sig-
nificantly reduces the design effort, number of discrete
components, and solution size/cost. The main-sub LDO
structure reduces the standby current consumption, and as a
result, greatly extends the standby time of the phone. System
operation has been proven to be fully compatible with
MSM51xx-based designs.
The ADP3502 comes in a 64-lead 7 mm
×
7 mm
×
1 mm
TQFP package and is specified over a wide temperature range of
–30
°
C to +85
°
C.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADP3502ASU | CDMA Power Management System |
| ADP3510 | Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.40V) 8-SM8 -40 to 110 |
| ADP3510ARU | Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.40V) 8-SM8 -40 to 110 |
| ADP3522 | GSM Power Management System |
| ADP3522ACP-1.8 | GSM Power Management System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3502ASU | 制造商:AD 制造商全稱:Analog Devices 功能描述:CDMA Power Management System |
| ADP3502ASU-REEL | 制造商:Analog Devices 功能描述:CDMA Power Management System 64-Pin TQFP T/R |
| ADP3510 | 制造商:AD 制造商全稱:Analog Devices 功能描述:CDMA Power Management System |
| ADP3510ARU | 制造商:AD 制造商全稱:Analog Devices 功能描述:CDMA Power Management System |
| ADP3510ARU-REEL7 | 制造商:Analog Devices 功能描述: |
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