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UB264B Datasheet Preview

UB264B Datasheet

LION BATTERY PROTECTION IC

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UNISONIC TECHNOLOGIES CO., LTD
UB264B
Preliminary
LION BATTERY PROTECTION
IC FOR 2-SERIAL, 3-SERIAL,
OR 4-SERIAL-CELL PACK
(SECONDARY PROTECTION)
„ DESCRIPTION
The UTC UB264B Series is secondary protection IC for 2-, 3-, or
4-Cell lithium-ion rechargeable battery packs, and incorporates a
high-accuracy voltage detection circuit.
The UTC UB264B Series also includes a high accuracy delay
circuit for over voltage detection time without external capacitors.
„ FEATURES
* High-accuracy voltage detection circuit for each cell
* Overcharge detection voltage n (n=1 to 4): 4.30V to 4.80V (in
50mV steps)
* Overcharge hysteresis voltage n (n=1 to 4): -0.52V±0.21V,
0.39V±0.16V, 0.26V±0.11V, 0.13V±0.06V, None
* Delay times for overcharge detection can be set by an internal
circuit without external capacitors
* Output latch function after overcharge detection
* CMOS output active “H”
* Wide operating voltage range 3.6V to 24V
* Wide operating temperature range 40°C to +85°C
* Low current consumption: 2.5μA typ. (+25°C) at 3.5V for
each cell
„ ORDERING INFORMATION
Note:
Ordering Number
Lead Free
Halogen Free
UB264BL-P08-R
UB264BG-P08-R
xx: SERIAL CODE, refer SERIAL CODE LIST.
Package
TSSOP-8
CMOS IC
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
1 of 10
QW-R502-833.A
Free Datasheet http://www.Datasheet4U.com




UTC

UB264B Datasheet Preview

UB264B Datasheet

LION BATTERY PROTECTION IC

No Preview Available !

UB264B
„ PIN CONFIGURATION
Preliminary
CMOS IC
„ PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
PIN NAME
VDD
SENSE
VC1
VC2
VC3
VSS
CTL
CO
DESCRIPTION
Positive power input pin
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 voltage connection pin of battery 3
Positive voltage connection pin of battery 4
Negative power input pin
Negative voltage connection pin of battery 4
Overcharge detection latch reset pin
FET gate connection pin for charge
„ SERIAL CODE LIST
MODEL
CODE
OVERCHARGE
DETECTION
VOLTAGE
[VCU](V)
AA 4.45±0.050
AB 4.35±0.050
AC 4.50±0.050
UB264B
AD
AE
4.35±0.050
4.30±0.050
AF 4.45±0.050
AG 4.30±0.050
AH 4.40±0.050
OVERCHARGE
HYSTERSIS
VOLTAGE
[VHC](V)
-0.39±0.16
-0.39±0.16
-0.39±0.16
-0.39±0.16
-0.39±0.16
-0.39±0.16
-0.39±0.16
-0.39±0.16
OVERCHARGE
DETECTION
DELAY TIME
[tCU](S)
4.0±1.0
4.0±1.0
4.0±1.0
2.0±0.5
4.0±1.0
2.0±0.5
2.0±0.5
4.0±1.0
OVERCHARGE
RELEASE
DELAY TIME
[tCL](mS)
60.0±20.0
60.0±20.0
60.0±20.0
30.0±10.0
60.0±20.0
30.0±10.0
30.0±10.0
60.0±20.0
OUTPUT FORM
CMOS output
active “H”
CMOS output
active “H”
CMOS output
active “H”
CMOS output
active “H”
CMOS output
active “H”
CMOS output
active “H”
CMOS output
active “H”
CMOS output
active “H”
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 10
QW-R502-833.A
Free Datasheet http://www.Datasheet4U.com


Part Number UB264B
Description LION BATTERY PROTECTION IC
Maker UTC
Total Page 10 Pages
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