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参数资料
| 型号： | LX2201CLQT |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
| 封装： | 4 X 4 MM, PLASTIC, MLPQ-20 |
| 文件页数： | 1/11页 |
| 文件大小： | 231K |
| 代理商： | LX2201CLQT |
LX2201
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2000
Rev. 1.0, 2004-04-14
WWW
.Microse
m
i
.CO
M
USB Li-Ion Battery Charger
TM
DESCRIPTION
The LX2201 Linear Battery Charger is a
2-stage multi-state L-ion battery charger
(Constant current/Constant voltage) that can
supply up to 2A of charging current into a
single cell Lithium-Ion battery.
While the LX2201 is a general-purpose
charger,
it
features
several
built
in
programming
states
specifically
for
compliance with USB bus specifications.
Monitoring the input current supplied by the
system and then dynamically allocating any
unused power to the charging circuitry
maintains USB compliance with respect to
peripheral current limitations. This feature
insures that the battery will be charged as
soon as possible without sacrificing system
performance or features.
The LX2201 is a highly integrated
charger that requires just three external
programming resistors; one for setting the
constant charge current level, one for setting
the termination charge current, and one for
setting the Vin maximum current. It also
has an internal thermostat that will throttle
back the charge current to keep the die
temperature from exceeding 150C; this
feature insures the LX2201 delivers the
maximum charge rate for a given thermal
environment.
A logic input is provided to select either
4.1V or 4.2V battery chemistries. A high
accuracy
current
sensing
circuit
is
implemented allowing batteries to be filled
to the fullest capacity before terminating
the charge cycle.
Since the battery
terminal voltage is separated from the
system
load when
charging from
an
adapter,
trickle
charging,
which
can
prematurely age the Li-ion battery, is
avoided.
The LX2201 provides a charging status
indicator. The integrated PMOS pass element
features low drop out voltage while providing
an inherent load disconnect with virtually no
drain on the battery when disabled or when
the input power is removed. Additionally a
battery load disconnect switch has been
integrated
providing
seamless
power
switching when transitioning between charge
and discharge.
The
LX2201
features
a
pre-charge
conditioning mode for batteries that have
been deeply discharged and also has a top off
charge mode for batteries that are left on the
charger for extended periods.
The LX2201 is packaged in a high power
20-pin MLP 4x4 mm miniature surface
mount package.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
USB compliant Charging States
Small, High Power 20-lead MLP
package
Internal Pass element can
function as a reverse direction
load switch
No Sense Resistor Required
Full Capacity Charging
Always Cool Running
4.1 or 4.2V Applications
Tolerates 5V + 10% Wall Supply
Regulation
Conditioning Mode For Deep
Discharge
Built In MOSFET Driver For Easy
AC Adapter/USB Implementation
Topping Charge For Long
Periods Of Non-Use.
Inherent Load Disconnect
APPLI C ATION S
Batteries with 350mAH to 2AH
ratings
Cell Phones
PDAs
Charging cradles
Digital Cameras
Low Cost Single L-Ion Cell
Chargers
PRODUCT H I GHLIGHT
AC/DC Adapter
To System
Regulator
USB POWER
USB Lo / Hi
LX2201
NC
VI
D
1
VI
D
0
VM
PSW
VDD
VIN
VDD
BAT
CUS
CTP
CCP
GN
D
BAT
CMP
VDD
STAT
State Select Truth Table
VID0
VID1
VDD > VBAT
VBAT > VDD
0
Switch open – charging
disabled.
Switch open – discharge disabled.
0
1
Charging – USB high
level if using VIN.
Switch open – discharge disabled.
1
0
Charging – USB low
level if using VIN.
Battery Discharging. MOSFET fully
enhanced with current flow VBAT to
VDD.
1
Charging – USB high
level if using VIN.
Battery Discharging. MOSFET fully
enhanced with current flow VBAT to
VDD.
PACKAGE ORDER INFO
TA(°C)
LQ
Plastic MLP
4x4mm 20-Pin
0 to 70
LX2201CLQ
Note: Available in Tape & Reel.
Append the letter “T” to the part number.
(i.e. LX2201CLQT)
LL
XX
22
00
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LX2201CLQ-TR | 制造商:Microsemi Corporation 功能描述:CHGR/CHRGR CONST I/V LI-ION 2A 4.2V 20MLPQ - Tape and Reel |
| LX2202 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:2A Li-Ion Linear Charger and Power Control |
| LX2202 EVAL | 功能描述:BOARD EVAL ENGINEERING PRE-PROD RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| LX2202_06 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:TM 2A Li-Ion Linear Charger and Power Control |
| LX2202CLQ | 制造商:Microsemi Corporation 功能描述:CHG MGMT LI-ION 4.2V 20MLPQ - Bulk |
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