UNISONIC TECHNOLOGIES CO., LTD
UB242
Preliminary
CMOS IC
LITHIUM-ION/POLYMER
BATTERY PROTECTION IC
DESCRIPTION
UTC
UB242
is a series of lithium-ion / lithium-polymer rechargeable
battery protection ICs incorporating high accuracy voltage detection
circuits and delay circuits.
UTC
UB242
is suitable for protection of single cell lithium-ion /
lithium polymer battery packs from overcharge, over discharge and over
current.
The ultra-small package and less required external components
make it ideal to integrate the UTC
UB242
into the limited space of
battery pack.
6
5
4
1
2
3
FEATURES
*
*
*
*
*
*
*
*
*
*
Wide supply voltage range:
Ultra-low quiescent current:
Ultra-low power-down current:
Overcharge detection voltage:
Overcharge release voltage:
Over discharge detection voltage :
Over discharge release voltage:
Over current detection voltage:
Short circuit detection voltage:
Charger detection voltage:
Reset resistance for over current protection:
V
DD
=1.8V~9.0V
I
DD
=3.0μA (V
DD
=3.9V)
I
PD
=0.1μA (V
DD
=2.0V)
V
OCU
=4.200V~4.400V
V
OCR
=4.005V~4.225V
V
ODL
=2.15V~3.00V
V
ODR
=2.32V~3.10V
V
OI1
=0.05V~0.20V
V
OI2
=1.35V (Fixed)
V
CH
=-0.7V
R
SHORT
＞500kΩ
SOT-26
* Delay times are generated by an internal circuit.
(External capacitors are unnecessary.)
* Halogen Free
ORDERING INFORMATION
Ordering Number
UB242xG-AG6-R
Package
SOT-26
Packing
Tape Reel
MARKING
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Copyright © 2009 Unisonic Technologies Co., Ltd
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UB242
PIN CONFIGURATION
Preliminary
CMOS IC
PIN DESCRIPTION
PIN NO
1
2
3
4
5
6
PIN NAME
OD
CSI
OC
DS
V
DD
V
SS
DESCRIPTION
For discharge control: FET gate connection pin
For current sense Input pin, and charge detect
For charge control :FET gate connection pin
For reduce delay time: test pin
Positive power input
Negative power input
SERIAL CODE LIST
Overcharge
Detection
Voltage
[V
OCU
](V)
4.325±0.050
4.350±0.050
4.325±0.050
4.300±0.050
4.300±0.050
4.275±0.050
4.280±0.050
4.250±0.050
Overcharge
Release
Voltage
[V
OCR
](V)
4.075±0.050
4.150±0.050
4.075±0.050
4.080±0.050
4.080±0.050
4.175±0.050
4.175±0.050
4.055±0.050
Over discharge
Detection
Voltage
[V
ODL
](V)
2.50±0.10
2.30±0.10
2.50±0.10
2.50±0.10
2.50±0.10
2.30±0.08
2.90±0.10
2.25±0.10
Over discharge
Release
Voltage
[V
ODR
](V)
2.90±0.10
3.00±0.10
2.90±0.10
2.90±0.10
2.90±0.10
2.45±0.08
3.00±0.10
2.85±0.10
Over Current
Detection
Voltage
[V
OI1
](mV)
100±30
100±30
150±30
150±30
100±30
100±30
150±30
150±30
Model
Code
A
B
C
D
E
F
G
H
UB242
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UB242
BLOCK DIAGRAM
Preliminary
CMOS IC
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UB242
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
(V
SS
=0V, Ta=25°С unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Input voltage between V
DD
and V
SS
(Note2)
V
DD
V
SS
-0.3 ~ V
SS
+12
V
OC output pin voltage
V
OC
V
DD
-15 ~ V
DD
+0.3
V
OD output pin voltage
V
OD
V
SS
-0.3 ~ V
DD
+0.3
V
CSI input pin voltage
V
CSI
V
DD
-15 ~ V
DD
+0.3
V
DS input pin voltage
V
DS
V
SS
-0.3 ~ V
DD
+03
V
Operating Temperature
T
ORP
-40 ~ +85
°С
Storage Temperature
T
STG
-40 ~ +125
°С
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Pulse (μsec) noise exceeding the above input voltage (V
SS
+12V) may cause damage to the IC.
ELECTRICAL CHARACTERISTICS
(V
SS
=0V, DS=Floating, Ta=25°С unless otherwise specified)
PARAMETER
CURRENT CONSEMPTION
Supply Current
Power-Down Current
OPERATING VOLTAGE
Operating Input Voltage
DETECTION VOLTAGE
Overcharge Detection Voltage
Overcharge Release Voltage
Overdischarge Detection Voltage
Overdischarge Release Voltage
Over Current Detection Voltage
Short Circuit Detection Voltage
Reset Resistance For Over Current
Protection
Charger Detection Voltage
DELAY TIME
Overcharge Detection Delay Time
Overdischarge Detection Delay Time
SYMBOL
I
DD
I
PD
V
DS1
V
OCU
V
OCR
V
ODL
V
ODR
V
OI1
V
OI2
R
SHORT
V
CH
T
OC
T
OD
V
DD
=3.6V to4.5V, DS=Floating
V
DD
=3.6V to 4.5V, V
DS
=V
DD
V
DD
=3.6V to 2.0V, DS=Floating
V
DD
=3.6V to 2.0V, V
DS
=V
DD
V
DD
=3.0V
V
DD
=3.0V
V
DD
=3.0V
V
DD
=3.6V
TEST CONDITIONS
V
DD
=3.9V
V
DD
=2.0V
V
DD
-V
SS
1.8
V
OCU
-0.050
V
OCR
-0.050
V
ODL
-0.100
V
ODR
-0.100
V
OI1
-0.030
1.0
350
-1.2
0.7
10
100
6
5
5
V
OCU
V
OCR
V
ODL
V
ODR
V
O/1
1.35
500
-0.7
1.3
20
180
11
10
10
MIN
TYP
3.0
MAX
6.0
0.1
9.0
V
OCU
+0.050
V
OCR
+0.050
V
ODL
+0.100
V
ODR
+0.100
V
OI1
+0.030
1.75
650
-0.2
1.9
30
260
17
20
50
UNIT
μA
μA
V
V
V
V
V
V
V
kΩ
V
s
ms
ms
ms
ms
µs
V
V
V
V
Over Current Detection Delay Time
T
OI1
Short Circuit Detection Delay Time
T
OI2
OTHER
OC Pin Output “H” Voltage
V
OH1
V
DD
=3.9V, I
OH
=-50μA
3.4
3.7
OC Pin Output “L” Voltage
V
OL1
V
DD
=4.5V, CSI=0V
0.1
0.5
OD Pin Output “H” Voltage
V
OH2
V
DD
=3.9V, I
OH
=-50μA
3.4
3.7
OD Pin Output “L” Voltage
V
OL2
V
DD
=2.0V, I
OL
=50μA
0.1
0.5
Note: If V
DS
=V
DD
, the delay time will be reduced, and the test time for V
OCU
or V
ODL
will also be reduced.
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UB242
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
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