LX2201

Microsemi

Integrated Products Division

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

Page 3

Copyright

© 2000

Rev. 1.2b, 2005-04-13

USB Li-Ion Battery Charger

TM

®

ELECTRI CAL CHA RACTERI S TI CS

Unless otherwise specified, the following specifications apply over the operating ambient temperature 0

°C

A

otherwise noted and the following test conditions: VDD = 5.0V.

LX2201

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

MAIN CIRCUITRY

Input Voltage

VDD

4.5

6

V

4

8

mA

Quiescent Current

3

5

µA

CTP Bias Voltage

1.25

V

CCP Bias Voltage

1.25

V

CUS Bias Voltage

2.6

V

CONSTANT VOLTAGE MODE

VM = Low

4.16

4.2

4.24

Constant Voltage Charge Level

VM = High

4.06

4.1

4.14

V

Maximum Dropout Voltage

350

mV

Top Off Charge Droop Threshold

96

97

98

BAT

CVL

V

%

V

CONSTANT CURRENT MODE

BAT Constant Current Accuracy

0.85

1

1.15

A

BAT Constant Current Level

0.35

2

A

Conditioning Current

3.0

4.75

6.0

BAT

CCL

I

%

I

Conditioning Current Mode

Threshold Voltage

60

64

68

BAT

CVL

V

%

V

Charge Termination Current

Accuracy

35

50

65

mA

USB CURRENT LIMIT

USB Low Current Limit

85

93

100

mA

USB High Current Limit

425

463

500

mA

LOGIC

STAT Logic High Output

4.5

5

V

STAT Logic Low Output

0.4

V

Logic High

2.0

State Select Threshold

Logic Low

0.8

V

Logic High

2.0

VM Select Threshold

Logic Low

0.8

V

THERMAL SHUTDOWN

Maximum Junction Temperature

130

140

150

°C

BI-DIRECTIONAL PASS ELEMENT CONTROL

Discharge Switch On Resistance

130

150

m

Ω

Charging Threshold

0

5

10

mV

Discharging Threshold

0

5

10

mV

Pass Element Switch Mode Delay

tsw

Charge–to–discharge or Discharge–to–charge

5

µs

PSW FET DRIVER

High Output Voltage

4.1

4.2

V

Low Output Voltage

0

0.2

V

OR-ing Resistance

5

10

15

K

Ω

Switch Delay

0

500

1000

Ns