UB6054

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 13

www.unisonic.com.tw

QW-R52-867.a

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Supply Voltage

4.5

6.0

V

Input Supply Current

Charge Mode (Note 1),

300

2000

μA

Standby Mode (Charge

Terminated)

200

500

μA

25

60

μA

Regulated Output (Float) Voltage

4.15

4.20

4.25

V

BAT Pin Current

80

100

120

mA

500

mA

±1

±6

μA

Connected)

±1

±6

μA

±1

±6

μA

Trickle Charge Current

10

mA

Trickle Charge Threshold Voltage

2.8

2.9

3.0

V

3.8

V

120

mV

Manual Shutdown Threshold Voltage

PROG Pin Rising

1.25

V

PROG Pin Falling

1.15

V

100

mV

30

mV

C/10 Termination Current Threshold

0.1

mA/mA

0.1

mA/mA

PROG Pin Voltage

0.8

1.0

1.2

V

CHRG Pin Weak Pull-Down Current

20

μA

CHRG Pin Output Low Voltage

0.6

V

Recharge Battery Threshold Voltage

150

mV

Thermal Protection Temperature

120

°С

Power FET “ON” Resistance (Between

0.6

Ω

Soft-Start Time

100

μs

Recharge Comparator Filter Time

1.0

ms

Termination Comparator Filter Time

1000

μs

PROG Pin Pull-Up Current

1.0

μA

Notes: 1. Supply current includes PROG pin current (approximately 100μA) but does not include any current

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