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)
Appendix
Appendix1-Rev1.0
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
