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PDF LX2208 Data sheet ( Hoja de datos )
| Número de pieza | LX2208 | |
| Descripción | 2Amp Three Level Lithium Ion Battery Charger | |
| Fabricantes | Microsemi Corporation | |
| Logotipo |  |
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LX2208
2 Amp Three Level Lithium Ion Battery Charger
® www.DataSheet4U.com
TM
PRODUCTION DATA SHEET
DESCRIPTION
The LX2208 is a single cell level and the conditioning current at 5%
Lithium Ion or Lithium Polymer of the constant current level. Power
battery charger. The controller will status indicators STAT and DC OK can
charge a single cell Li-Ion battery be configured to show charge in
from either a wall adapter or a USB progress, battery fully charged and
power source. A low under-voltage external power on. The STAT pin is
lockout level increases usable capable of sourcing or sinking 5mA.
charging range from a current limited The DC OK output is an open drain
power source. In addition, there is a output and can sink 10mA.
linear die temperature thermal control The LX2208 enters a low quiescent
loop, which limits the heat dissipation current shut down when power is
while still charging the battery. There removed from the IN pin or when it is
are three logic selectable and logically shutdown to minimize battery
programmable charge current levels: drain.
the high charge programming level is Protection features include: under
typically set for charging from the voltage lock out, reverse current
wall adapter, the low level charge blocking on the IN pin, internal die
programming is typically set to temperature thermal loop to reduce
500mA for full USB charging and charge current to maintain a safe die
100mA (20%) for reduced USB temperature, and a unsafe battery
charging.
temperature charge inhibitor. For
In addition to setting the high-level charging deeply discharged batteries,
charge current, the HCP programming the controller includes a conditioning
resistor also sets the termination charge mode. The LX2208 comes in a
current at 10% of the constant current 3x3mm 12 pin MLPD package.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATURES
Up to 2A Charging Current
Integrated Power MOSFET
Three Charge Levels for
Adapter, and USB Hi and Low
Charge Battery from a Current
Limited Adapter
0.5% Battery Voltage Accuracy
USB Current Compliance
Battery Full Indicator
CC/CV with Thermal Feedback
Battery Temperature Monitor
Precision Charge Termination
Protection features:
o Unsafe Battery Temp Lockout
o Internal IC Temp Regulator
o USB Current Limiter
o Reverse Current Blocking
o Under Voltage Lockout
o False Termination Prevention
under Low Supply Conditions
APPLICATIONS
Navigation Devices
Multi-Media Players
Handheld Devices
Digital Cameras
PRODUCT HIGHLIGHT
Adapter or USB
Adapter or USB
Select
Shutdown
USB Hi/Low
Current
Programming
IN STAT
CMP
H/L DC OK
SD
LX2208
TMP
20%
BAT
HCP
LCP GND
Battery
Status
Charging
Full
Power On
+ Battery
-
Temperature
Lockout
Sensing
PACKAGE ORDER INFO
TA (°C)
-40 to 85
LD Plastic MLPD 3 x 3mm 12 pin
RoHS Compliant / Pb-free
LX2208ILD
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX2208ILD-TR)
Copyright © 2007
Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
1 page  
LX2208
2 Amp Three Level Lithium Ion Battery Charger
® www.DataSheet4U.com
TM
PRODUCTION DATA SHEET
CONTROL LOGIC DIAGRAM
START
SD
NO
YES
VIN > VBAT
YES
NO
RETURN TO START IF
VDDBAT, UVLO, or SD CHANGES STATE.
Definition of VDDBAT:
VDDBAT =1 if VIN >VBAT
=0 if VIN < VBAT
SLEEP
UVLO
YES
NO
VOLTAGE
MONITORING
MODE (STATE).
VBAT<97%
NO
YES
NO
VBAT>60%
YES
CONDITION
CHARGE
MODE
CONSTANT CURRENT
CHARGE MODE
IMAX DETERMINED BY THE
STATE OF H/L, RHCP, RLCP
and 20%.
TEMP <
130ºC
YES
NO
ICC < IMAX
NO
YES
NO VBAT> VCV
YES
REDUCE
CHARGE
CURRENT
REDUCE
CHARGE
CURRENT
CONSTANT VOLTAGE
CHARGE MODE
TEMP < 130 NO
YES
ICC< IMAX
NO
YES
REDUCE
CHARGE
CURRENT
REDUCE
CHARGE
CURRENT
NO IBAT<ITAPER
YES
ITAPER DETERMINED BY
RHCP.
RETURN TO THE TOP
OF THE CHART.
Copyright © 2007
Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
5 Page 
LX2208
2 Amp Three Level Lithium Ion Battery Charger
® www.DataSheet4U.com
TM
PRODUCTION DATA SHEET
PACKAGE DIMENSIONS
LD
12-Pin Plastic MLP Dual Exposed Pad
D
D2
Pin 1 ID
e
b
MILLIMETERS
Dim MIN MAX
A 0.80 1.00
A1 0.00 0.05
A3 0.20 REF
D 3.00 BSC
E 3.00 BSC
D2 1.87 2.12
E2 1.06 1.31
e 0.45 BSC
K 0.20 MIN
L 0.30 0.50
b 0.15 0.25
INCHES
MIN MAX
0.031 0.039
0.000 0.002
0.008 REF
0.118 BSC
0.118 BSC
0.074 0.083
0.042 0.052
0.018 BSC
0.008 MIN
0.012 0.020
0.006 0.010
Note:
1.
Dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006”) on any side. Lead dimension shall
not include solder coverage.
PRODUCTION DATA – Information contained in this document is proprietary to
Microsemi and is current as of publication date. This document may not be modified in
any way without the express written consent of Microsemi. Product processing does not
necessarily include testing of all parameters. Microsemi reserves the right to change the
configuration and performance of the product and to discontinue product at any time.
Copyright © 2007
Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LX2208.PDF ] | |
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