LX2202 データシートの表示（PDF） - Microsemi Corporation
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LX2202 Datasheet PDF : 12 Pages
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TM
USB Lo / Hi
AC/DC Adapter
USB POWER
LX2202
® 2A Li-Ion Linear Charger and Power Control
PRODUCTION DATA SHEET
APPLICATION SCHEMATICS
To System
Power Bus
B220
1N4148
1N5817
IRLMS6802
VDD
NU
VDD
BAT
VDD LX2202 BAT
VDD
BAT
USB
CMP
2.55k
105k 72.3k
0.1µF
10µF
10µF
2.49k
Charge
Indicator
VID0
0
0
1
1
VID1
0
1
0
1
State Select Truth Table
VDD > VBAT
Switch open – charging
VBAT > VDD
Switch open – discharge
disabled.
disabled.
Charging – USB high level if Switch open – discharge
using USB.
disabled.
Charging – USB low level if
using USB.
Charging – USB high level if
using USB.
Battery Discharging. MOSFET
fully enhanced with current
flow VBAT to VDD.
Battery Discharging. MOSFET
fully enhanced with current
flow VBAT to VDD.
Figure 3 – AC Adapter and USB Supply (Charge and Discharge Modes)
(1N4148 and IRLMS6802 are optional to lower USB voltage drop.)
Copyright © 2004
Rev. 1.0a, 2006-02-09
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
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