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參數(shù)資料
| 型號： | MAX1612 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Bridge-Battery Backup Controllers for Notebooks |
| 中文描述： | 備用橋接電池控制器，用于筆記本電腦 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 136K |
| 代理商： | MAX1612 |
General Desc ription
The MAX1612/MAX1613 manage the bridge battery
(sometimes called a hot-swap or auxiliary battery) in
portable systems such as notebook computers. They
feature a step-up DC-DC converter that boosts 2-cell or
3-cell bridge-battery voltages up to the same level as
the main battery. This voltage boosting technique
reduces the number of cells otherwise required for a 6-
cell plus diode-OR bridging scheme, reducing overall
size and cost. Another key feature is a trickle-charge
timer that minimizes battery damage caused by con-
stant charging and eliminates trickle-charge current
drain on the main battery once the bridge battery is
topped off.
These devices contain a highly flexible collection of
independent circuit blocks that can be wired together
in an autonomous stand-alone configuration or used in
conjunction with a microcontroller. In addition to the
boost converter and charge timer, there is a micropow-
er linear regulator (useful for RTC/CMOS backup as
well as for powering a microcontroller) and a high-pre-
cision low-battery detection comparator.
The two devices differ only in the preset linear-regulator
output voltage: +5.0V for the MAX1612 and +3.3V for
the MAX1613. Both devices come in a space-saving
16-pin QSOP package.
Applic ations
Notebook Computers
Portable Equipment
Backup Battery Applications
Features
o
Reduce Battery Size and Cost
o
Four Key Circuit Blocks
Adjustable Boost DC-DC Converter
NiCd/NiMH Trickle Charger
Always-On Linear Regulator (+28V Input)
Low-Battery Detector
o
Low 18μA Quiescent Current
o
Selectable Charging/Discharging Rates
o
Preset Linear-Regulator Voltage
5V (MAX1612)
3.3V (MAX1613)
o
4V to 28V Main Input Voltage Range
o
Internal Switch Boost Converter
o
Small 16-Pin QSOP Package
M
Bridge-Battery Bac kup Controllers
for Notebooks
________________________________________________________________ Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
ISET
LRI
LRO
PGND
CD
CC
GND
LBI
FB
TOP VIEW
MAX1612
MAX1613
QSOP
BBATT
LX
DCMD
LBO
BBON
CCMD
FULL
BBATT
LRI
+3.3V
+5V
V+
V
CPU
AUXILIARY
BRIDGE
BATTERY
MAIN BATTERY
OR
WALL
ADAPTER
DC-DC
OUTPUT
APPLICATION
CIRCUIT
DC-DC
CONVERTER
MAX1630
MAX1612
MAX1613
Typic al Operating Circ uit
19-4785; Rev 0; 11/98
EVALUATION KIT MANUAL
PART
MAX1612
EEE
MAX1613
EEE
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
16 QSOP
16 QSOP
FOLLOWS DATA SHEET
Pin Configuration
Ordering Information
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1613EEE | Bridge-Battery Backup Controllers for Notebooks |
| MAX1612EEE | Bridge-Battery Backup Controllers for Notebooks |
| MAX1614 | High-Side, N-Channel MOSFET Switch Driver |
| MAX1614EUA | High-Side, N-Channel MOSFET Switch Driver |
| MAX1615EUK-T | High-Voltage, Low-Power Linear Regulators for Notebook Computers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX16120AOMA+T | 制造商:Maxim Integrated Products 功能描述:ULTRA-VERSATILE LOW-POWER DUAL/TRIPLE P SUPERVISORY CIRCUITS - Tape and Reel |
| MAX16121BHIB+T | 制造商:Maxim Integrated Products 功能描述:ULTRA-VERSATILE LOW-POWER DUAL/TRIPLE P SUPERVISORY CIRCUITS - Tape and Reel |
| MAX16125WTAN16+T | 功能描述:監(jiān)控電路 Dual Pushbutton Controller RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16125WTDB29+T | 功能描述:監(jiān)控電路 Dual Pushbutton Controller RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16125WTEJ00+T | 功能描述:監(jiān)控電路 Dual Pushbutton Controller RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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