參數(shù)資料
型號(hào): LX2202CLQ-TR
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類(lèi): 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20
封裝: 4 X 4 MM, ROHS COMPLIANT, PLASTIC, MLP-10
文件頁(yè)數(shù): 9/12頁(yè)
文件大?。?/td> 188K
代理商: LX2202CLQ-TR
LX2202
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
Copyright
2004
Rev. 1.0a, 2006-02-09
WWW
.Microse
m
i
.CO
M
2A Li-Ion Linear Charger and Power Control
TM
APPLICATION SCHEMATICS
AC/DC Adapter
USB POWER
USB Lo / Hi
To System
Power Bus
105k
2.55k
72.3k
2.49k
Charge
Indicator
NU
VI
D
1
VI
D
0
VM
PS
W
VDD
USB
VDD
BAT
NU
CU
S
CT
P
CC
P
GN
D
BAT
CMP
VDD
ST
A
T
BAT
B220
1N4148
1N5817
IRLMS6802
10F
0.1F
10F
LX2202
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 USB.
Switch open – discharge
disabled.
1
0
Charging – USB low level if
using USB.
Battery Discharging. MOSFET
fully enhanced with current
flow VBAT to VDD.
1
Charging – USB high level if
using USB.
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.)
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
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