LX2205 データシートの表示（PDF） - Microsemi Corporation
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LX2205 Datasheet PDF : 14 Pages
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LX2205
® 1A Li-Ion Battery Charger with Power Source Management
TM
PRODUCTION DATA SHEET
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the operating temperature -40ºC ≤ TA ≤ 85 ºC and the following test
conditions: VMDC = VUSB = 5V, VSYS =Open, VSUSP = VSHDN = Low, VUCL = High, VBAT = 3.9V, RCCP = 49.9k, RCUS = 2.26k, RCTP = 20k
Parameter
Symbol
Test Conditions
LX2205
Units
Min Typ Max
` MAIN CIRCUITRY
Input Voltage
VSUPPLY
USB or SYS
4.35
6
V
Under Voltage Charging Lockout
VSYS(UVLO) Rising input; VBAT = 3.2V
3.55
3.7
3.95
V
SYS UVLO Hysteresis
Guaranteed by design
140
mV
USB UVLO
VUSB(UVLO) Rising input; VBAT = 3.2V
4.25 4.30 4.34
V
SYS Input Supply Current
VBAT = VCVL; (battery charged), VSYS = 5.0V
ISYS
SHDN = High (Shutdown Mode), VSYS = 5.0V
1.5
2.5
mA
25
µA
VBAT = VCVL; (battery charged), , VMDC = 0V
2
mA
USB Input Supply Current
SUSP = High (Suspend Mode), , VMDC = 0V
IUSB
SHDN = High (Shutdown Mode), , VMDC = 0V
VMDC = 0V, VUSB = 0V
25
µA
25
µA
-1.5
-6
µA
VBAT = VCVL; (battery charged)
0.5
10
µA
Battery Drain Current
VMDC=0V; SUSP = High (Suspend Mode)
IBAT
SHDN = High (Shutdown Mode)
25
50
µA
0.5
10
µA
` BATTERY CHARGER
VUSB = 0V; VMDC = 0V; Discharge with no load
25
50
µA
Constant Voltage Charge Voltage
VCVL
4.16
4.2
4.24
V
CTP Bias Voltage
VCTP
IBAT > 100mA
1.30
V
CCP Bias Voltage
VCCP
1.25
V
ICCL
VSYS = 5.0V
0.85 0.98 1.10
A
Max Battery Charge Current
VMDC=0V
IBAT
VMDC=0V; ISYS = 200mA (out of pin)
465
mA
261
mA
VMDC=0V; UCL = Low
92
mA
Conditioning Current
Conditioning Current Threshold
Voltage
Charge Termination Current
ICOND
VCCT
IBAT
VBAT =2.5V, as a % of ICCL
2.5
5
7.5
%
2.55
2.7
2.9
V
40
50
60
mA
Top Off Charge Droop Threshold
VDRP
Expressed as a % of VCVL
96
97
98
%
Copyright © 2007
Rev. 1.0a, 2007-03-02
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
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