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参数资料
| 型号： | LX2201CLQ-TR |
| 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, ROHS COMPLIANT, PLASTIC, MLPQ-20 |
| 文件页数： | 1/11页 |
| 文件大小： | 166K |
| 代理商： | LX2201CLQ-TR |
LX2201
PRODUCTION DATA SHEET
Not Recommended for New Design: See the LX2202
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2000
Rev. 1.3, 2006-02-09
WWW
.M
icrosemi
.CO
M
USB Li-Ion Battery Charger
TM
DESCRIPTION
The LX2201 Linear Battery Charger is a
multi-state (2 stage) Li-Ion battery charger
(Constant current / Constant voltage) that
can supply up to 2A of charging current into
a single cell Li-Ion battery.
LX2201
is
a
cost
effective,
high
performance USB battery charger.
The
LX2201 features a 2A high charge current,
with automatic power savings using isolated
battery topology, user programmability in
USB charging, and an extended battery life
with low RdsON in discharge.
In
USB
mode,
the
LX2201
has
advantages over competition chargers with
the USB Limit Control circuit and low
RdsON in discharge mode. The USB limit
Control circuit allows simultaneous battery
charging while the device is in operation.
The VDD to supply load is independent of
the VBAT charging logic. In discharge mode
a low RdsON provides low loss and heavy
transient.
The LX2201 is a low cost, highly
integrated battery charger solution. . It only
requires three external resistors: one for
setting the constant charge current level, one
for setting the termination charge current,
and one for setting VIN . It also has a built
in thermostat that will throttle back the
charge current to keep the die temperature
from exceeding 150°C; this feature insures
the LX2201 delivers the maximum charge
rate for a given thermal environment.
LX2201 support two types of Li-Ion
battery chemistry; 4.1V and 4.2V through
logical input (VM pin).. A high accuracy
current sensing circuit allows batteries to
be fully charged before terminating the
charge
cycle.
The
LX2201
design
enhances system battery life by avoiding
premature discharge of Li-Ion battery with
a separate battery terminal voltage from
system load when adaptor charging is used,
i.e. trickle charge.
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 which provides seamless power
switching when transitioning between charge
and discharge modes.
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 available in a high power
4mm x 4mm, 20-pin MLP, surface mount
package.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
Patent Pending
KEY FEATUR ES
2A Charge Current
USB Compliant Charging States
Low RdsON in Discharge Mode
Power Saving and Conditional
Mode for Deep Discharge
Selectable Li-Ion Battery for 4.1V
or 4.2V Applications
Internal Pass Element Can
Function as a Reverse Direction
Load Switch
No Sense Resistor Required
Full Capacity Charging
True Charge Indicator
Wall Supply Regulator Tolerance
5V + 10%
Built In MOSFET Driver For Easy
AC Adapter/USB Implementation
Topping Charge with Voltage
Monitoring Mode
Inherent Load Disconnect
Small, High Power 20-lead MLP
package
APPLI C ATION S
Batteries with 350mAH to 2AH
Ratings
Cell Phones
PDAs
Charging Cradles
Digital Cameras
Low Cost Single Li-Ion Cell
Chargers
PRODUCT H I GHLIGHT
LX2201
AC/DC Adapter
To System
Regulator
USB POWER
USB Lo / Hi
VM
VIN
VDD
BAT
CMP
VDD
BAT
VDD
NC
PSW
VI
D
1
VI
D
0
GN
D
CUS
CT
P
ST
AT
CCP
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
LQ
Plastic MLP
4x4mm 20-Pin
TA(°C)
RoHS Complaint / Pb-free
0 to 70
LX2201CLQ
Note: Available in Tape & Reel.
Append the letters “TR” to the part number.
(i.e. LX2201CLQ-TR)
LL
XX
22
00
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| LX2202CLQ-TR | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:TM 2A Li-Ion Linear Charger and Power Control |
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