UB240L-XX-S08-R [UTC]
LION BATTERY PROTECTION IC FOR 1-SERIAL;
| 型号： | UB240L-XX-S08-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | LION BATTERY PROTECTION IC FOR 1-SERIAL |
| 文件： | 总11页 (文件大小：204K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
UB240
Preliminary
CMOS IC
LION BATTERY PROTECTION
IC FOR 1-SERIAL TO
4-SERIAL-CELL PACK
(SECONDARY PROTECTION)
DESCRIPTION
The UTC UB240 Series is secondary protection IC for 1-, 2-,
3-, or 4-Cell lithium-ion rechargeable battery packs, and
incorporates a high-accuracy voltage detection circuit.
The UTC UB240 Series also includes a high accuracy delay
circuit for over voltage detection time can be set by an external
capacitor.
FEATURES
* High-accuracy voltage detection circuit for each cell
* Overcharge detection voltage n (n=1 to 4): 4.05V to 4.50V
(in 50mV steps)
* Overcharge hysteresis voltage n (n=1 to 4): 0.25V±0.07V,
0.30V±0.10V
* Delay times for overcharge detection can be set by an external
capacitor
* CMOS output active “H”
* Wide operating voltage range 3.6V to 24V
* Wide operating temperature range −40°C to +85°C
* Low current consumption: 1.5μA typ. (+25°C) at 3.5V for each
cell
ORDERING INFORMATION
Ordering Number
Lead Free
Package
Packing
Halogen Free
UB240L-xx-S08-R
UB240L-xx-S08-T
UB240L-xx-P08-R
UB240G-xx-S08-R
UB240G-xx-S08-T
UB240G-xx-P08-R
SOP-8
SOP-8
Reel Tape
Tube
TSSOP-8
Reel Tape
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Copyright © 2013 Unisonic Technologies Co., Ltd
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Preliminary
CMOS IC
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
1
PIN NAME
VC1
DESCRIPTION
Positive voltage connection pin of battery 1
Negative voltage connection pin of battery 1
Positive voltage connection pin of battery 2
Negative voltage connection pin of battery 2
Positive voltage connection pin of battery 3
Negative power input pin
Negative voltage connection pin of battery 4
Negative voltage connection pin of battery 3
Positive voltage connection pin of battery 4
Capacitor connection pin for overcharge detection delay
Positive power input pin
2
3
4
5
VC2
VC3
VSS
VC4
6
7
8
CD
VCC
OUT
FET gate connection pin for charge
SERIAL CODE LIST
OVERCHARGE DETECTION
VOLTAGE
OVERCHARGE HYSTERSIS
VOLTAGE
CODE
OUTPUT FORM
[VCU](V)
[VCD](V)
AA
AB
AC
AD
AE
AF
4.150±0.050
4.250±0.050
4.300±0.050
4.350±0.050
4.350±0.050
4.450±0.050
0.250±0.07
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
CMOS output active “H”
0.250±0.07
0.250±0.07
0.250±0.07
0.300±0.10
0.300±0.10
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Preliminary
CMOS IC
BLOCK DIAGRAM
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Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING (TA= 25°C unless otherwise specified)
PARAMETER
Input Voltage Between VCC And VSS
SYMBOL
VDS
RATINGS
VSS−0.3 ~ VSS+26
VSS−0.3 ~ VCC+0.3
VSS−0.3 ~ VCC+0.3
500
UNIT
V
Input Pin Voltage (VC1/VC2/VC3/VC4
OUT Output Pin Voltage
)
VIN
V
VOUT
PD
V
Power Dissipation (Note 2)
Operation Ambient Temperature
Storage Temperature
mW
°C
°C
TOPR
TSTG
−40 ~ +85
−40 ~ +125
Notes: 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. When mounted on printed circuit board.
ELECTRICAL CHARACTERISTICS (TA=25°C unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
DETECTION VOLTAGE
Overcharge Detection Voltage n
(n = 1, 2, 3, 4)
VCUn
0.050
−
VCUn +
0.050
VCUn
VCDn
4.05V ~ 4.50V Adjustment
VCUn
0.25
V
V
Overcharge Hysteresis
Voltage n (n = 1, 2, 3, 4) (Note 1)
DELAY TIME
0.18
1.0
0.32
Overcharge Detection Delay
Time
tCU
VDSOP
IOPE
CCD=0.1μF
1.5
2.0
24
S
V
OPERATING VOLTAGE
Operating Voltage Between
3.6
VCC And VSS (Note 2)
CURRENT CONSUMPTION
Current Consumption During
Operation
V1=V2=V3=V4=3.5V
1.5
6.0
μA
Current Consumption At Power Down
VC2 Pin Current
IPDN
IVC2
IVC3
IVC4
V1=V2=V3=V4=2.3V
V1=V2=V3=V4=3.5V
V1=V2=V3=V4=3.5V
V1=V2=V3=V4=3.5V
1.2
0
6.0
0.5
0.5
0.5
μA
μA
μA
μA
-0.5
-0.5
-0.5
VC3 Pin Current
0
VC4 Pin Current
0
OUTPUT VOLTAGE
VCC
-0.05
OUT “H” VOLTAGE
VOUT(H)
VOUT(L)
IOUT = -10μA
IOUT = 10μA
V
V
VSS
+0.05
OUT “L” VOLTAGE
Notes: 1. 0.25±0.07V, 0.30±0.10V.
2. After detecting the overcharge, the delay circuit operates normally in the range of operating voltage.
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Preliminary
CMOS IC
OPERATING
1. Overcharge Detection
OUT is turned to “H” (for CMOS output active “H”) when the voltage of one of the batteries exceeds the
overcharge detection voltage (VCU) during charging under normal conditions beyond the overcharge detection delay
time (tCU). This state is called “overcharge.” Attaching FET to the OUT pin provides charge control and a second
protection. At that time, the overcharge state is maintained until the voltage of all batteries decreases from the
overcharge detection voltage (VCU) by the equivalent to the overcharge hysteresis voltage (VCD).
2. Delay Circuit
The overcharge detection delay time (tCU) change with an external capacitor (CCD). The delay times are calculated
by the following equations：
Overcharge detection delay time tCU[s] = (15±5 )CCD [μF]
TIMING CHARTS
V1 Battery
V2 Battery
V3 Battery
V4 Battery
VCU
VCD
Battery voltage
VSS
VCC
CMOS output active “H” and
Nch open drain models
OUT pin voltage
VSS
VCC
VDET
CD pin voltage
VSS
tCU
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Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
(1) Connection Example 1 (for 4-cells)
SC PROTECTOR
EB+
RVCC
VCC
VC1
R1
R2
CVCC
C1
C2
C3
C4
BAT1
BAT2
VC2
VC3
UTC
UB240
Series
CD
R3
R4
CCD
BAT3
BAT4
VC4
VSS
FET
OUT
DP
EB-
Constants for External Components 1
SYMBOL
R1 to R4
C1 to C4
RVCC
MIN
TYP
1 k
MAX
10 k
1
UNIT
Ω
0
0
0
0
0
0.1
100
0.1
0.1
μF
Ω
1 k
1
CVCC
μF
μF
CCD
1
Notes:
1.
2.
The above constants may be changed without notice.
It has not been confirmed whether the operation is normal or not in circuits other than the above
example of connection. In addition, the example of connection shown above and the constant do
not guarantee proper operation. Perform through evaluation using the actual application to set the
constant.
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Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT(Cont.)
(2) Connection Example 2 (for 4-cells)
EB+
RVCC
VCC
VC1
R1
R2
CVCC
C1
C2
C3
C4
BAT1
BAT2
VC2
VC3
UTC
UB240
Series
CD
R3
R4
CCD
BAT3
BAT4
VC4
VSS
FET
OUT
DP
EB-
SC PROTECTOR
Constants for External Components 2
SYMBOL
R1 to R4
C1 to C4
RVCC
MIN
0
TYP
1 K
0.1
MAX
10 k
1
UNIT
Ω
0
μF
Ω
0
100
0.1
1 k
1
CVCC
0
μF
μF
CCD
0
0.1
1
Notes: 1. The above constants may be changed without notice.
2. It has not been confirmed whether the operation is normal or not in circuits other than the above
example of connection. In addition, the example of connection shown above and the constant do not
guarantee proper operation. Perform through evaluation using the actual application to set the
constant.
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Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT(Cont.)
(3) Connection Example 3 (for 3-cells)
SC PROTECTOR
EB+
RVCC
VCC
VC1
R1
R2
CVCC
C1
C2
C3
BAT1
BAT2
VC2
VC3
UTC
UB240
Series
CD
R3
CCD
BAT3
VC4
VSS
FET
OUT
DP
EB-
Constants for External Components 3
SYMBOL
R1 to R3
C1 to C3
RVCC
MIN
TYP
1 k
MAX
10 k
1
UNIT
Ω
0
0
0
0
0
0.1
100
0.1
0.1
μF
Ω
1 k
1
CVCC
μF
μF
CCD
1
Notes: 1. The above constants may be changed without notice.
2. It has not been confirmed whether the operation is normal or not in circuits other than the above
example of connection. In addition, the example of connection shown above and the constant do not
guarantee proper operation. Perform through evaluation using the actual application to set the
constant.
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Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT(Cont.)
(4) Connection Example 4 (for 2-cells)
SC PROTECTOR
EB+
RVCC
VCC
VC1
R1
R2
CVCC
C1
C2
BAT1
BAT2
VC2
VC3
UTC
UB240
Series
CD
CCD
VC4
VSS
FET
OUT
DP
EB-
Constants for External Components 4
SYMBOL
R1 to R2
C1 to C2
RVCC
MIN
0
TYP
1 k
MAX
10 k
1
UNIT
Ω
0
0.1
100
0.1
0.1
μF
Ω
0
1 k
1
CVCC
0
μF
μF
CCD
0
1
Notes: 1. The above constants may be changed without notice.
2. It has not been confirmed whether the operation is normal or not in circuits other than the above
example of connection. In addition, the example of connection shown above and the constant do not
guarantee proper operation. Perform through evaluation using the actual application to set the
constant.
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Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT(Cont.)
(5) Connection Example 5 (for 1-cell)
SC PROTECTOR
EB+
RVCC
VCC
VC1
VC2
VC3
R1
CVCC
C1
BAT1
UTC
UB240
Series
CD
CCD
VC4
VSS
FET
OUT
DP
EB-
Constants for External Components 5
SYMBOL
R1
MIN
0
TYP
1 k
MAX
10 k
1
UNIT
Ω
C1
0
0.1
100
0.1
0.1
μF
Ω
RVCC
CVCC
CCD
0
1 k
1
0
μF
μF
0
1
Notes: 1. The above constants may be changed without notice.
2. It has not been confirmed whether the operation is normal or not in circuits other than the above
example of connection. In addition, the example of connection shown above and the constant do not
guarantee proper operation. Perform through evaluation using the actual application to set the
constant.
PRECAUTIONS
1. DO NOT connect any of overcharged batteries. Even if only one overcharged battery is connected to this IC,
the IC detects overcharge, then charge current flows to the delay capacitor through the parasitic diode between
pins where the battery is not connected yet. This may lead to a malfunction. Please perform sufficient
evaluation in the case of use. Depending on an application circuit, even when the fault charge battery is not
contained, the connection turn of a battery may be restricted in order to prevent the output of OUT detection
pulse at the time of battery connection.
2. Any position from V1 to V4 can be used when applying this IC for a one to three-cell battery. However, be sure
to short circuit between pins not in use ( VC1-VC2, VC2-VC3, VC3-VC4, or VC4-VSS).
3. The application conditions for the input voltage, output voltage, and load current should not exceed the package
power dissipation.
4. Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
electrostatic protection circuit.
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Preliminary
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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