lv51136t ON Semiconductor, lv51136t Datasheet

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lv51136t

Manufacturer Part Number
lv51136t
Description
2-cell Lithium-ion Secondary Battery Protection Ic
Manufacturer
ON Semiconductor
Datasheet
Ordering number : ENA1986
LV51136T
Overview
Features
The LV51136T is a protection IC for 2-cell lithium-ion secondary batteries.
• Monitoring function for each cell:
• High detection voltage accuracy:
• Hysteresis cancel function:
• Discharge current monitoring function:
• Low current consumption:
• 0V cell charging function:
"standard application", intended for the use as general electronics equipment. The products mentioned herein
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
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 new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) 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.
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
CMOS IC
2-Cell Lithium-Ion Secondary Battery
Protection 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 cancelled by
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
voltage between the V DD pin and V - pin.
max. 0.2μA
O1911HKPC 20110930-S00007 No.A1986-1/9
±25mV
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s products or

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lv51136t Summary of contents

Page 1

... Ordering number : ENA1986 LV51136T Overview The LV51136T is a protection IC for 2-cell lithium-ion secondary batteries. Features • Monitoring function for each cell: • High detection voltage accuracy: • Hysteresis cancel function: • Discharge current monitoring function: • Low current consumption: • 0V cell charging function: Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to " ...

Page 2

... Even when the device is used within the range of absolute maximum ratings result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Recommendation Operating Conditions 25°C Parameter Supply voltage LV51136T Symbol Conditions Vcout ...

Page 3

... Current consumption Stand-by current T-terminal input ON voltage *1 The Ratings of the table above is a design targets and are not measured. *2 Under over-discharge state, delay operation starts after release of over-discharge. LV51136T Symbol Conditions Vcell Voltage between V DD and V SS Voltage between under ...

Page 4

... SANYO : MSOP8(150mil) Pin Assignment Pin Functions Pin No. Symbol Cout Sense Dout LV51136T 200 Independent IC 170 150 100 50 0 -30 -20 Dout T Vc Sense Top view Cout pin ...

Page 5

... Block Diagram Sence Vc 6 LV51136T Level shift + + - - + td1,tr1 - Delay control logic + td2,tr2 - + - + td3,tr3 - + - td5,tr5 2 Cout 8 Dout td4 No.A1986-5/9 ...

Page 6

... If the load resistor is removed, the V - pin voltage will be pulled down to the V SS level. Thereafter, the IC will be released from the over-current/short-circuit detection state when the V - pin voltage becomes equal to or less than the over-current detection voltage, and the Dout pin returns to “H” after over-current release delay time set by the internal counter. LV51136T No.A1986-6/9 ...

Page 7

... 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”. LV51136T 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 8

... To standby V DD Vd4 V - Vd3 V SS Vd5 Charging via FETparasite Dout tr2 td2 V SS Over-discharge detection state V DD Cout V - LV51136T Charger Load Load connection connection Discharging via FETparasite Di td1 tr1 Over-charge detection state Charger Load connection connection connection Over-current Load short-circuit ...

Page 9

... This catalog provides information as of October, 2011. Specifications and information herein are subject to change without notice. LV51136T Sense LV51136T Dout Cout max unit Ω 500 Ω ...

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