BH3890FV Datasheet, PDF (1/3 Pages) Rohm – Charging control driver IC for Portable telephone BH3890FV

Charging control driver IC for
Portable telephone
BH3890FV
99W063A
Description
The BH3890FV is a charging IC developed for a
lithium ion battery (1 cell). Back-up charging circuit
and charging current monitor circuit are included.
This IC is directed by a micro computer controller.
Dimension (Units : mm)
Features
1) Built-in charging driver circuit
2) Built-in charging current monitor circuit
3) Built-in back-up charging circuit
4) Small package SSOP-B8
Applications
Portable telephone, PHS, equipment involving lithium ion battery
SSOP-B8
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Limits
Unit
Maximum supply voltage
V_CCMAX
–0.3 ~ +7.0
V
Power dissipation
Pd
300 ^*
mW
Operating temperature range Topr
–20 ~ +70
˚C
Storage temperature range
Tstg
–55 ~ +125
˚C
* Derating : 3.0mW/˚C for operation above Ta=25˚C.
Recommended Operating Conditions (Ta=25˚C)
Parameter
Power supply voltage
Symbol Min. Typ.
V_CC
5
—
Max. Unit
6
V
November, 1999