LX2202(2005) データシートの表示（PDF） - Microsemi Corporation

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LX2202
(Rev.:2005)

2A Li-Ion Linear Charger and Power Control

Microsemi Corporation 

LX2202

TM

® 2A Li-Ion Linear Charger and Power Control

PRODUCTION DATA SHEET

APPLICATION CIRCUITS

LX2202 CONTROL FLOW DIAGRAM

START

RETURN TO START IF

VSYS > VBAT, UVLO OR EN CHANGE

STATE.

YES

UVLO

NO

VSYS > VBAT NO

YES

VID0 = 1

NO

YES

VID1= 1

NO

YES

NO CONDITION

VBAT>60%

CHARGE

MODE

YES

CONSTANT CURRENT

CHARGE MODE

USB PROG DETERMINED

BY THE STATE OF VID1.

TEMP < 140

NO

YES

IUSB <

NO

PROG

YES

REDUCE

CHARGE

CURRENT

REDUCE

CHARGE

CURRENT

NO

VBAT> VCV

YES

CONSTANT VOLTAGE

CHARGE MODE

EN = HI

NO

YES

D IS C H A R G E

MODE

SW ITCH OFF

TEMP < 140

NO

YES

IUSB <

NO

PROG

YES

NO

IB A T< IM IN

YES

VOLTAGE

M O N IT O R IN G

MODE (STATE).

REDUCE

CHARGE

CURRENT

REDUCE

CHARGE

CURRENT

VBAT<97%

NO

YES

RETURN TO THE TOP

OF THE CHART.

Figure 2 – Control Flow Diagram

Copyright © 2004

Rev. 1.0, 2005-03-18

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 5

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