LX2208 データシートの表示（PDF） - Microsemi Corporation
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LX2208 Datasheet PDF : 11 Pages
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LX2208
2 Amp Three Level Lithium Ion Battery Charger
®
TM
PRODUCTION DATA SHEET
CONTROL LOGIC DIAGRAM
START
SD
YES
NO
VIN > VBAT
NO
YES
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 <
NO
130ºC
YES
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
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