BL4054/BL4054B
800mA Standalone Linear Li-Ion Battery Charger
with Thermal Regulation in SOT23-5/TSOT23-5
Absolute Maximum Rating
(Note 1)
Input Supply Voltage (V
CC
)
PROG Voltage
BAT Voltage
CHRGb
BAT Short-Circuit Duration
BAT Pin Current
-0.3V to +10V
-0.3V to +V
CC
-0.3V to 7V
-0.3V to 10V
Continuous
800mA
PROG Pin Current
800
µ
A
Maximum Junction Temperature
125°C
(Note2)
Operating Temperature Range
-40°C to 85°C
Storage Temperature Range
-65°C to 125°C
Lead Temperature (Soldering, 10s)
300°C
Package Information
TSOT23-5/SOT23-5
TOP VIEW
CHRGb 1
MARKING
5
PROG
GND 2
BAT
3
4
V
CC
Part Number
BL4054-4.2
BL4054-4.3
BL4054-4.4
BL4054B-4.2
BL4054B-4.3
BL4054B-4.4
Top Mark
BAYW
BBYW
BCYW
BAYW
BBYW
BCYW
(Note3)
Temp Range
-40°C to +85°C
Thermal Resistance
(Note 4)
Package
TSOT23-5
SOT23-5
Ө
JA
220°C/W
250°C/W
Ө
JC
110°C/W
130°C/W
Note 1:
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Note 2:
The BL4054/BL4054B is guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the –40°C to
85°C operating temperature range are assured by design, characterization and correlation with statistical process controls.
Note 3:
X: Product Code(BL4054:B,BL4054B:B ) V: Voltage Code(4.2V:A,4.3V:B,4.4V:C) Y: Year of Manufacturing(9:2009) W: Week of
Manufacturing(W:A-Z, a-z). Contact Belling marketing for more information in detail.
Note 4:
Thermal Resistance is specified with approximately 1 square of 1 oz copper.
PPMIC BU
BL4054/BL4054B Rev 1.4
5/2009
www.belling.com.cn
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
©2009 Belling All Rights Reserved
2
BELLING [ SHANGHAI BELLING CO., LTD. ]
