lv51132t ON Semiconductor, lv51132t Datasheet

no-image

lv51132t

Manufacturer Part Number
lv51132t
Description
2-cell Lithium-ion Secondary Battery Protection Ic
Manufacturer
ON Semiconductor
Datasheet
Ordering number : ENA1827
LV51132T
Overview
Features
Absolute Maximum Ratings at Ta = 25°C
Power supply voltage
Input voltage
Output voltage
Allowable power dissipation
Operating ambient temperature
Storage temperature
The LV51132T is a protection IC for 2-cell lithium-ion secondary batteries.
• Monitoring function for each cell:
• High detection voltage accuracy:
• Hysteresis cancel function:
• Several varieties of detection voltage are available:
• Discharge current monitoring function:
• Low current consumption:
• 0V cell charging function:
Charger minus voltage
Parameter
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer
device, the customer should always evaluate and test devices mounted in the customer
equipment.
Cout pin voltage
Dout pin voltage
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
Symbol
Pd max
Vdout
Vcout
V DD
Topr
Tstg
V -
CMOS IC
2-Cell Lithium-Ion Secondary Battery
Protection IC
Independent IC
Detects overcharge and over-discharge conditions and controls the
charging and discharging operation of each cell.
Over-charge detection accuracy
Over-discharge detection accuracy ±100mV
The hysteresis of over-discharge detection voltage is made small by
sensing the connection of a load after overcharging has been detected.
Detects over-currents, load shorting, and excessively high voltage of a
charger .
Normal operation mode typ. 6.0μA
Stand by mode
Charging is enabled even when the cell voltage is 0V by giving a
potential difference between the V DD pin and V - pin.
Conditions
max. 0.2μA
±25mV
90110 SY 20100820-S00006 No.A1827-1/10
Ratings
'
V SS -0.3 to V DD +0.3
V DD -28 to V DD +0.3
V DD -28 to V DD +0.3
s products or
-40 to +125
-0.3 to +12
-30 to +80
170
Unit
mW
°C
°C
V
V
V
V

Related parts for lv51132t

lv51132t Summary of contents

Page 1

... Ordering number : ENA1827 LV51132T Overview The LV51132T is a protection IC for 2-cell lithium-ion secondary batteries. Features • Monitoring function for each cell: • High detection voltage accuracy: • Hysteresis cancel function: • Several varieties of detection voltage are available: • Discharge current monitoring function: • ...

Page 2

... Current drain Standby current T pin input ON-voltage *1: Upon connecting to charger upon over-discharge, the delay time after recovery from over-discharge. *2: The Ratings of the table above is a design targets and are not measured. LV51132T Symbol Conditions Vcell Between V DD and V SS Between and ...

Page 3

... SANYO : MSOP8(150mil) Pin Assignment Pin Functions Pin No. Symbol Cout Sense Dout LV51132T 200 Independent IC 170 150 100 50 0 -30 -20 Dout T Vc Sense Top view Cout pin ...

Page 4

... Block Diagram Vc 6 LV51132T Sence Level shift + + td5,tr5 - - + td1,tr1 - Delay control logic + td2,tr2 - + - + td3,tr3 - + td4 - Cout 8 Dout No.A1827-4/10 ...

Page 5

... V - pin voltage will be pulled by the V SS pin voltage. Thereafter, the IC will return from the over-current/short-circuit detection state when the V - pin voltage becomes equal to or below the over- current detection voltage and the Dout pin returns to “H” after over-current return delay time set by the internal counter. LV51132T No.A1827-5/10 ...

Page 6

... Short-circuit detection can be made independently. Excessive charger detection cannot be made during over-discharge, over-current and short-circuit detection. And its delay time starts after the Dout pin returns to “H”. LV51132T Operation in case of detection overlap Over-charge detection is preferred. If over- discharge state continues even after over- charge detection, over-discharge detection is resumed ...

Page 7

... V - Vd3 V SS Vd5 Discharging via FET parasite Di Dout tr2 td2 V SS Over-charge detection state V DD Cout V - LV51132T Charger Load Charger Excessive charger connection connection connection decided by the voltage Discharging via FET parasite Di. FET parasite Di. td5 td1 tr1 Over-charge detection state ...

Page 8

... This catalog provides information as of September, 2010. Specifications and information herein are subject to change without notice. LV51132T + Sense LV51132T Dout Cout R3 max unit Ω 500 Ω 4k Ω ...

Related keywords