PPMIC BU

www.belling.com.cn

BL4054/BL4054B Rev 1.4

Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited

5/2009

©2009 Belling All Rights Reserved

6

BL4054/BL4054B

800mA Standalone Linear Li-Ion Battery Charger

with Thermal Regulation in SOT23-5/TSOT23-5

Manual Shutdown Threshold, PROG

rising

1.15V

1.21V

1.3V

Manual Shutdown Threshold, PROG

falling

0.95V

1.0V

1.05V

Automatic Shutdown Threshold, BAT

rising

5mV

30mV

50mV

Automatic Shutdown Threshold, BAT

falling

70mV

100mV

140mV

C/10 Termination Current Threshold

85mV

100mV

115mV

Auto Recharge Battery Voltage

4V

4.05V

4.1V

CHRGb Pin Weak Pull-down Current

8

12

35

CHRGb Pin Output Low Voltage

0.35V

0.6V

Junction Temperature In Constant

Temperature Mode

120°C

Power FET ON Resistance

600m

Soft-Start Time

50

Recharge Comparator Filter Time

0.75ms

2ms

4.5ms

Termination Comparator Filter Time

0.4ms

1ms

2.5ms

PROG Pin Pull-up Current

3

Note 5: 100% production test at +25°C.

Specifications over the temperature range are guaranteed by design and characterization.

Note 6: Supply current includes PROG pin current (approximately 100

µA) but does not include any current delivered to the battery

through the BAT pin (approximately 100mA).

Typical Performance Characteristics

4.0

4.5

5.0

5.5

6.0

6.5

7.0

0.990

0.995

1.000

1.005

1.010

PROGPin Voltage vs Supply

Voltage (Constant Current Mode)

-50

-25

0

25

50

75

100

1.0000

1.0025

1.0050

1.0075

1.0100

1.0125

1.0150

1.0175

1.0200

TEMPERATURE(

PROGPinVoltage vs

Temperature

0.00

0.25

0.50

0.75

1.00

1.25

0

100

200

300

400

500

600

Charge Current vs

PROGPin Voltage