Dimension (Units : mm)
Description
Applications
Features
Absolute Maximum Ratings(Ta=25˚C)
Recommended Operating Conditions (Ta=25˚C)
Charging control driver IC for
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
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.
SSOP-B8
BH3890FV
99W063A
Portable telephone, PHS, equipment involving lithium ion battery
November, 1999
Maximum supply voltage
Power dissipation
Operating temperature range
Storage temperature range
VCCMAX
Pd
Topr
Tstg
V
˚C
˚C
Unit
mW
300
–20 +70
–55 +125
Limits
–0.3 +7.0
~
~
~
*
SymbolParameter
* Derating : 3.0mW/˚C for operation above Ta=25˚C.
Power supply voltage VCC V5 6
Parameter Symbol UnitMin. Typ. Max.
—
Portable telephone
Application circuit
Electrical Characteristics
IORMAX
VOR
VOB
VCCST
RRR
RRB
∆ VOB1
∆ VOB2
10
4.35
4.15
—
30
30
—
—
Maximum output current
Output voltage
Control voltage
Starting up voltage
Ripple rejection rate
Ripple rejection rate
Load regulation
Input voltage stability
15
4.45
4.20
—
40
40
5
5
20
4.55
4.25
3.5
—
—
30
30
mA
V
V
dB
dB
mV
mV
V
VCC (VOC2≥ 0.4V)
VR=–30dBV, fR=100Hz, IO=5mA
VOR≤ 4.0V
VR=–20dBV, fR=100Hz, IO=100mA
IO=100mA
VCC=5.0~6.0V, IO=100mA
IO=1~800mA
RRC 30
Ripple rejection rate 40 — dB VR=–20dBV, fR=100Hz, VBATVH=4.215V,
VBATV=4.2V
<REG> (CHG1=ON, CHG2=OFF)
<CHARGE> (CHG1=OFF, CHG2=ON)
IO=5mA
Conditions
Symbol UnitMin. Max.
IQ4
VOC1
VOC2
LINC
IQ1
IQ2
IQ3
Parameter
—
2.37
0.44
12.7
—
—
Output voltage 2
Coefficient of output
voltage inclination
Output voltage 1
Typ.
0
2.57
0.54
13.5
530
1.0
1.4
5
2.77
0.64
14.3
800
1.7
2.1
µA
V
—
mA
mA
V
CHG1=OFF, CHG2=OFF
CHG1=ON, REG=No load
CHG2=ON, CHARGE section=No load
CHG1=OFF, CHG2=OFF, Vcc=0V BATV=4.0V
VBATVH–VBATV=150mV
VBATVH–VBATV=0V
LINC=(VOC1–VOC2) / 0.15
<BATV circuit current> (Current influx into BATV terminal )
<CURRENT>
<VCC circuit current>
Circuit current 1
—
Circuit current 2
Circuit current 4
Circuit current 3
µA
(Unless otherwise noted, Ta=25˚C, Vcc= 5.5V, BPF=20 ~ 20kHz)
