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參數(shù)資料
| 型號： | ADP3405 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Replaced by BQ29412 : Voltage Protection for 2-,3-or,4-Cell Lion Batteries (2nd Protection) 8-TSSOP -20 to 85 |
| 中文描述： | 手機(jī)電源管理系統(tǒng) |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 152K |
| 代理商： | ADP3405 |
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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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADP3405
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site:www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2001
FEATURES
Handles all GSM Baseband Power Management
Functions
Four LDOs Optimized for Specific GSM Subsystems
Charges Li-Mn Coin Cell for Real-Time Clock
Charge Pump and Logic Level Translators for 3 V and 5 V
GSM SIM Modules
Narrow Body 4.4 mm 28-Lead TSSOP Package
APPLICATIONS
GSM/DCS/PCS Handsets
TeleMatic Systems
ICO/Iridium Terminals
GSM Power Management System
FUNCTIONAL BLOCK DIAGRAM
DIGITAL
LDO
VCC
VRTC
VTCXO
PWRONKEY
ROWX
PWRONIN
RESET
ANALOGON
POWER-UP
SEQUENCING
AND
PROTECTION
LOGIC
ADP3405
VBAT
REFOUT
AGND
VCCA
RESCAP
CHRON
SIMBAT
CAP+
CAP
SIMPROG
SIMON
SIMGND
RESETIN
CLKIN
DATAIO
CHARGE
PUMP
LOGIC LEVEL
TRANSLATION
BUFFER
REF
+
I/O
RST
CLK
VSIM
RTC LDO
XTAL OSC
LDO
ANALOG
LDO
DGND
GENERAL DESCRIPTION
The ADP3405 is a multifunction power management system IC
optimized for GSM cell phones. The wide input voltage range of
3.0 V to 7.0 V makes the ADP3405 ideal for both single cell Li-Ion
and three cell NiMH designs. The current consumption of the
ADP3405 has been optimized for maximum battery life, featuring
a ground current of only 150
μ
A when the phone is in standby
(digital LDO, and SIM card supply active). An undervoltage lock-
out (UVLO) prevents the startup when there is not enough energy
in the battery. All four integrated LDOs are optimized to power
one of the critical sub-blocks of the phone. Their novel anyCAP
architecture requires only very small output capacitors for stability,
and the LDOs are insensitive to the capacitors’ equivalent series
resistance (ESR). This makes them stable with any capacitor,
including ceramic (MLCC) types for space-restricted applications.
A step-up converter is implemented to supply both the SIM
module and the level translation circuitry to adapt logic signals
for 3 V and 5 V SIM modules. Sophisticated controls are avail-
able for power-up during battery charging, keypad interface, and
charging of an auxiliary backup battery for the real-time clock.
These allow an easy interface between ADP3405, GSM proces-
sor, charger, and keypad. Furthermore, a reset circuit and a
thermal shutdown function have been implemented to support
reliable system design.
anyCAP is a registered trademark of Analog Devices, Inc.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| ADP3410KRU | Dual MOSFET Driver with Bootstrapping |
| ADP3410 | Dual MOSFET Driver with Bootstrapping |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3405ARU | 制造商:AD 制造商全稱:Analog Devices 功能描述:GSM Power Management System |
| ADP3405ARU-REEL | 制造商:Analog Devices 功能描述:GSM Power Management System 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:GSM MGMT SYS LI-ION/NIMH 28TSSOP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:INTEGRATED CELLULAR POWER MGMT. SYSTEM - Tape and Reel |
| ADP3405ARU-REEL7 | 制造商:Analog Devices 功能描述:GSM Power Management System 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:GSM MGMT SYS LI-ION/NIMH 28TSSOP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:INTEGRATED CELLULAR POWER MGMT. SYSTEM - Tape and Reel |
| ADP3408 | 制造商:AD 制造商全稱:Analog Devices 功能描述:GSM Power Management System |
| ADP3408ACP-1.8-RL | 制造商:Analog Devices 功能描述:GSM Power Management System 32-Pin LFCSP EP T/R |
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