Preliminary

Datasheet

LP4062

LP4062 –00

Ver. 1.0 Datasheet

Nov.-2007

Page 4 of 13

Electrical Characteristics

(

Over 0C ≤TJ ≤125°C and recommended supply voltage)

LP4062

Symbol

Parameter

Conditions

Min.

Typ.

Max

Unit

Input Supply Voltage

4.35

12

V

Input Supply Current

Standby Mode (Charge Terminated)

Connected,

350

200

25

2000

500

50

µA

Regulated Output (Float) Voltage

4.158

4.2

4.242

V

BAT Pin Current

Connected)

100

475

0

110

510

-2.5

±

1

±

1

120

545

-6

±

2

±

2

mA

mA

µA

µA

µA

Trickle Charge Current

20

50

70

mA

Trickle Charge Threshold Voltage

2.8

2.9

3.0

V

Trickle Charge Hysteresis Voltage

60

80

110

mV

Undervoltage

Lockout

Threshold

3.55

3.7

3.85

V

Undervoltage

Lockout

Hysteresis

150

200

300

mV

Manual

Shutdown

Threshold

Voltage

PROG Pin Rising

1.85

1.94

2.05

V

Voltage

70

5

100

30

140

50

mV

C/10

Termination

Current

Threshold

0.085

0.085

0.10

0.10

0.115

0.115

mA/

mA

PROG Pin Voltage

0.96

1.03

1.10

V

Current

7

12

20

µA

0.35

0.6

V

Δ

Recharge

Battery

Threshold

Voltage

100

150

200

mV

Junction Temperature in Constant

Temperature Mode

120

℃

Power FET “ON” Resistance

600

mΩ

Soft-Start Time

100

µs

GE

Recharge Comparator Filter Time

0.75

2

4.5

ms

Termination

Comparator

Filter

Time

400

100

0

2500

µs

PROG Pin Pull-Up Current

3

µA

Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired.

Note 2: The LP4062 are guaranteed to meet performance specifications from 0℃ to 70℃.

Specifications over the -40℃ to 85℃ operating temperature range are assured by design,

characterization and correlation with statistical process controls.

Note 3: See Thermal Considerations.

Note 4: Supply current includes PROG pin current (approximately 100µA) but does not include any current

delivered to the battery through the BAT pin (approximately 100mA).

Note 5: This parameter is not applicable to the LP4062.