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參數(shù)資料
| 型號： | ADP3402ARU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 電源管理 |
| 英文描述： | Replaced by BQ29412 : Voltage Protection for 2-,3-or,4-Cell Lion Batteries (2nd Protection) 8-SM8 |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28 |
| 封裝： | 6.10 MM, THERMALLY ENHANCED, TSSOP-28 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 277K |
| 代理商： | ADP3402ARU |
REV. 0
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
ADP3402
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
FEATURES
Handles all GSM Baseband Power Management
Functions
Four LDOs Optimized for Specific GSM Subsystems
Charges Back-Up Capacitor for Real-Time Clock
Charge Pump and Logic Level Translators for 3 V and 5 V
GSM SIM Modules
Thermally Enhanced 6.1 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
ADP3402
VBAT
REFOUT
AGND
VCCA
RESCAP
CHRON
SIMBAT
CAP+
CAP
2
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 ADP3402 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 ADP3402 ideal for both single cell
Li-Ion and three cell NiMH designs. The current consumption of
the ADP3402 has been optimized for maximum battery life,
featuring a ground current of only 230
μ
A when the phone is in
standby (digital LDO, analog LDO, and SIM card supply active).
An undervoltage lockout (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 back-up capacitor for the real-time clock.
These allow an easy interface between ADP3402, GSM proces-
sor, charger, and keypad. The 28-lead TSSOP package has been
thermally enhanced to maximize power dissipation capability.
Furthermore, a reset circuit and a thermal shutdown function
have been implemented to support reliable system design.
anyCAP is a trademark of Analog Devices, Inc.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3402ARU-REEL | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述:GSM POWER MANAGEMENT SYSTEM - Tape and Reel |
| ADP3403ARU-REEL | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:Analog Devices 功能描述: |
| ADP3404 | 制造商:AD 制造商全稱:Analog Devices 功能描述:GSM Power Management System |
| 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 |
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