HY2120
Data Sheet
2-Cell
Lithium-ion/Lithium Polymer
Battery Packs Protection ICs
.
© 2009-2015 HYCON Technology Corp.
www.hycontek.com
DS-HY2120-V15_EN
HY2120
2-Cell
Lithium-ion/Lithium Polymer Battery Packs Protection ICs
Table of Contents
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
11.1.
11.2.
11.3.
11.4.
11.5.
12.
13.
13.1.
14.
14.1.
14.2.
15.
GENERAL DESCRIPTION ....................................................................................................................... 4
FEATURES ............................................................................................................................................... 4
APPLICATIONS ........................................................................................................................................ 4
BLOCK DIAGRAM.................................................................................................................................... 5
ORDERING INFORMATION ..................................................................................................................... 6
MODEL LIST ............................................................................................................................................. 6
PIN CONFIGURATION AND PACKAGE MARKING INFORMATION ..................................................... 7
ABSOLUTE MAXIMUM RATINGS ........................................................................................................... 8
ELECTRICAL CHARACTERISTICS ........................................................................................................ 9
BATTERY PROTECTION IC CONNECTION EXAMPLE ....................................................................... 10
DESCRIPTION OF OPERATION............................................................................................................ 12
Normal Status ...................................................................................................................................... 12
Overcharge Status .............................................................................................................................. 12
Overdischarge Status .......................................................................................................................... 13
Discharge Overcurrent Status (Discharge Overcurrent & Short Circuit) ............................................. 14
Charge Overcurrent Status ................................................................................................................. 15
CHARACTERISTICS (TYPICAL DATA) ................................................................................................. 16
PACKAGE INFORMATION..................................................................................................................... 19
.
SOT-23-6 ............................................................................................................................................. 19
TAPE & REEL INFORMATION ............................................................................................................... 20
Tape & Reel Information---SOT-23-6 (Type 1) .................................................................................... 20
Tape & Reel Information---SOT-23-6 (Type 2) .................................................................................... 21
REVISION RECORD ............................................................................................................................... 22
© 2009-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2120-V15_EN
page2
HY2120
2-Cell
Lithium-ion/Lithium Polymer Battery Packs Protection ICs
Attention：
1.
HYCON Technology Corp. reserves the right to change the content of this datasheet without further
notice. For most up-to-date information, please constantly visit our website:
http://www.hycontek.com
.
2.
3.
HYCON Technology Corp. is not responsible for problems caused by figures or application circuits
narrated herein whose related industrial properties belong to third parties.
Specifications of any HYCON Technology Corp. products detailed or contained herein stipulate the
performance, characteristics, and functions of the specified products in the independent state. We
does not guarantee of the performance, characteristics, and functions of the specified products as
placed in the customer’s products or equipment. Constant and sufficient verification and evaluation
is highly advised.
4.
Please note the operating conditions of input voltage, output voltage and load current and ensure
the IC internal power consumption does not exceed that of package tolerance. HYCON Technology
Corp. assumes no responsibility for equipment failures that resulted from using products at values
that exceed, even momentarily, rated values listed in products specifications of HYCON products
specified herein.
5.
6.
Notwithstanding this product has built-in ESD protection circuit, please do not exert excessive static
electricity to protection circuit.
Products specified or contained herein cannot be employed in applications which require extremely
high levels of reliability, such as device or equipment affecting the human body, health/medical
equipments, security systems, or any apparatus installed in aircrafts and other vehicles.
7.
Despite the fact that HYCON Technology Corp. endeavors to enhance product quality as well as
reliability in every possible way, failure or malfunction of semiconductor products may happen.
Hence, users are strongly recommended to comply with safety design including redundancy and
fire-precaution equipments to prevent any accidents and fires that may follow.
8.
Use of the information described herein for other purposes and/or reproduction or copying without
the permission of HYCON Technology Corp. is strictly prohibited.
.
© 2009-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2120-V15_EN
page3
HY2120
2-Cell
Lithium-ion/Lithium Polymer Battery Packs Protection ICs
1. General Description
The series of
HY2120
ICs is best created for 2-cell lithium-ion/lithium polymer rechargeable battery
protection and it also comprises high-accuracy voltage detectors and delay circuits.
These ICs are suitable for protecting 2-cell rechargeable lithium-ion/lithium polymer battery packs
against the problems of overcharge, overdischarge and overcurrent.
2. Features
The features that whole series of HY2120 comprised are as follows:
(1) High-accuracy voltage detection circuit
●
Overcharge detection voltage V
CUn
(n＝1, 2)
●
Overcharge release voltage V
CRn
(n＝1, 2)
●
Overdischarge detection voltage V
DLn
(n＝1, 2)
●
Overdischarge release voltage V
DRn
(n＝1, 2)
●
Discharge overcurrent detection voltage
●
Charge overcurrent detection voltage
●
Short-circuiting detection voltage
●
Overcharge delay time
●
Overdischarge delay time
●
Discharge overcurrent delay time
●
Charge overcurrent detection voltage
●
Short circuit delay time
●
Operation mode
●
Ultra low power-down current at
4.10 to 4.50V
3.90 to 4.30V
2.00 to 3.20V
2.30 to 3.40V
(by option)
(by option)
1.0V(fixed)
1000ms typ.
Accuracy
Accuracy
±30mV
±0.4V
Accuracy
Accuracy
Accuracy
±25mV
±80mV
±100mV
Accuracy ±50mV
(2)Delay times are generated by an internal circuit (external capacitors are unnecessary).
110ms typ.
10ms typ.
7ms typ.
250μs typ.
5.0μA typ., 9.0μA max. (VDD=7.8V)
0.1μA max. (VDD=4.0V)
.
(3) Low current consumption(Products with Power-down Function)
(4) High-withstanding-voltage device is used for charger connection pins
(CS pin and OC pin : Absolute maximum rating = 33 V)
(5) 0 V battery charge function “available” / “unavailable” are selectable
(6) Wide operating temperature range
−40°C
to +85 °C
(7) Small package
SOT-23-6
(8) The HY2120 series are Halogen-free, green package
3. Applications
2-cell lithium-ion rechargeable battery packs
2-cell lithium polymer rechargeable battery packs
© 2009-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2120-V15_EN
page4
HY2120
2-Cell
Lithium-ion/Lithium Polymer Battery Packs Protection ICs
4. Block Diagram
Oscillator
VDD
VDD
Overcharge
detector 1
Counter
short circuit
detector
overdischarge
detector 1
discharge
overcurrent detector
VC
Overcharge
detector 2
Control
Logic
VSS
overdischarge
detector 2
.
charge overcurrent
detector
CS
VSS
VSS
VSS
© 2009-2015 HYCON Technology Corp
www.hycontek.com
DS-HY2120-V15_EN
page5
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