LV51140T 1-Cell Lithium-Ion Battery Protection LV51140T prot

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LV51140T 1-Cell Lithium-Ion Battery Protection LV51140T prot

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Ordering number ENA1024
LV51140T
1-Cell Lithium-Ion Battery Protection
LV51140T protection rechargeable Li-ion battery high withstand voltage CMOS process. LV51140T protect single-cell Li-ion battery from over-charge, over-discharge, charge over-current discharge over-current.
Features
High accuracy detection voltage Over-charge detection Over-charge hysteresis Over-discharge detection Charge over-current detection Discharge over-current detection Operation Over-discharge condition ±25mV ±25mV ±25% ±0.3V ±20mV Typ. 3.0µA Max. 0.1µA
Delay time (internal adjustment) current consumption cell battery charging function
Specifications
Absolute Maximum Ratings 25°C
Parameter Supply voltage Input voltage Output voltage Output voltage Power dissipation Operating temperature Storage temperature Symbol Topr Tstg Conditions Ratings VSS-0.3 VSS+7 VDD-28 VDD+0.3 VM-0.3 VDD+0.3 VSS-0.3 VDD+0.3 +125 Unit
SANYO Semiconductor Co.,Ltd. products described contained herein are, with regard "standard application", intended general electronics equipment (home appliances, equipment, communication device, office equipment, industrial equipment etc.). products mentioned herein shall intended "special application" (medical equipment whose purpose sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level reliability directly threaten human lives case failure malfunction product cause harm human bodies, shall they grant guarantee thereof. should intend products applications outside standard applications customer considering such and/or outside scope intended standard applications, please consult with prior intended use. there consultation inquiry before intended use, customer shall solely responsible use. Specifications SANYO Semiconductor Co.,Ltd. products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer' products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer' products equipment.
51408 20080204-S00020 No.A1024-1/13
LV51140T
Electrical Characteristics Topr 25°C, unless otherwise specified
Parameter Detection voltage Over-charge detection voltage Over-charge hysteresis voltage Over-discharge detection voltage Over-discharge reset voltage Charge over-current detection voltage Discharge over-current detection voltage Load short-circuiting detection voltage Input voltage Input voltage between battery charge starting charger voltage Current consumption Current consumption operation Current consumption shutdown Output resistance resistance resistance resistance resistance Discharge over-current release resistance Detection delay time Over-charge detection delay time VC-0.2VVC+0.2V, Vdc+0.2VVdc-0.2V, Charge over-current detection delay time Discharge over-current detection delay time Load short-circuiting detection delay time Release delay time Release delay time Over-discharge release Charge over-current release (*1) Discharge over-current release Load short-circuiting release Release delay time Over-charge release trel2 VC+0.2VVC-0.2V, 1.0V 16.0 24.0 trel1 tidc tshort 3.5V, 0V-1.0V 3.5V, 0V1.0V 3.5V, 0V3.5V 10.4 10.4 0.70 1.30 Rcop 3.0V, 3.5V, 0.5V, 4.6V, 3.0V, 3.5V, 0.5V, 1.8V 3.5V, 1.0V Iopr Isdn 3.5V, 1.8V Vcha Internal circuit operating voltage Acceptable VRdc VIdc Vshort Based VDD, 3.5V 4.225 0.175 2.438 2.633 -1.000 0.180 -1.7 4.250 2.500 2.700 -0.700 0.200 -1.3 4.275 0.225 2.563 2.768 -0.400 0.220 -1.0 Symbol Conditions Test circuit Ratings Unit
Rcon
Rdop
Rdon Rdwn
15.0
30.0
60.0
Over-discharge detection delay time
21.7
31.0
40.3
Note Upon connecting charger upon over-discharge, delay time after recovery from over-discharge.
No.A1024-2/13
LV51140T
Package Dimensions
unit (typ) 3356
Specified board glass epoxy 0.35 (Both sides substrate)
Allowable power dissipation,
0.14
(0.5)
0.95
0.15
(1.2)
Ambient temperature,
0.05
SANYO SOT-23-6
Assignment
view
Function
Name Description gate connection discharge control (CMOS output) Voltage monitoring charger negative gate connection charge control (CMOS output) Positive power input Negative power input
No.A1024-3/13
LV51140T
Block Diagram
Oscillator Counter Control Circuit Short Detector Level Shifter
Over-charge Detector
Charge Over-current Detector
Over-discharge Detector Discharge Over-current Detector
Measurement Conditions
Over-charge detection voltage, Over-charge hysteresis voltage [Circuit 3.5V Over-charge detection voltage which goes "Low" from "High" when gradually increased from 3.5V. Then released from over-charge state goes "High" from "Low" voltage "Measured VC-VHc" when gradually decreased. greater value than discharge over-current detection voltage VIdc over-charge state, canceled then released from over-charge state Over-discharge detection voltage [Circuit 3.5V Over-discharge detection voltage which goes "Low" from "High" when gradually decreased from 3.5V. Next, under charge over-current detection voltage VIc. Then released from over-discharge state goes "High" from "Low". Charge over-current detection voltage [Circuit 3.5V Charge over-current detection voltage which goes "Low" from "High" when gradually decreased from Discharge over-current detection voltage [Circuit 3.5V Discharge over-current detection voltage VIdc which goes "Low" from "High" when gradually increased from Load short-circuiting detection voltage [Circuit 3.5V Load short-circuiting detection voltage Vshort which goes "Low" from "High" within time between minimum maximum value load short-circuiting detection delay time tshort, when increased rapidly within 10µs. battery charge starting charger voltage [Circuit decrease gradually. battery charge starting charger voltage Vcha when goes "High" (V1-0.1V higher).
Continued next page.
No.A1024-4/13
LV51140T
Continued from preceding page.
Current consumption operation shutdown [Circuit 3.5V normal condition. shows current consumption operation Iopr. 1.8V over-discharge condition. shows current consumption shutdown Isdn. resistance, resistance [Circuit 3.5V, 3.0V. (V1-V3)/|ICo| resistance Rcop. 4.6V, 0.5V. V3/|ICo| resistance Rcon. resistance, resistance [Circuit 3.5V, 3.0V. (V1-V4)/|IDo| resistance Rdop. 1.8V 0.5V. V4/|IDo| resistance Rdon. Discharge over-current release resistance [Circuit 3.5V, first. then, 1.0V. V2/|IVM| discharge over-current release resistance Rdwn. Over-charge detection delay time, Release delay time [Circuit Increase from voltage VC-0.2V VC+0.2V rapidly within 10µs. Over-charge detection delay time time needed "Low" just after change Next, decrease from VC+0.2V VC-0.2V rapidly within 10µs. Over-charge release delay time trel time needed "High" just after change Over-discharge detection delay time, Release delay time [Circuit Decrease from voltage Vdc+0.2V Vdc-0.2V rapidly within 10µs. Over-discharge detection delay time time needed "Low" just after change Next, increase from Vdc-0.2V Vdc+0.2V rapidly within 10µs. Release delay time trel1 case over-discharge time needed "High" just after change Charge over-current detection delay time, Release delay time [Circuit 3.5V Decrease from rapidly within 10µs. Charge over-current delay time time needed "Low" just after change Next, increase from rapidly within 10µs. Release delay time trel1 case charge over-current time needed "High" just after change Discharge over-current detection delay time, Release delay time [Circuit 3.5V Increase from rapidly within 10µs. Discharge over-current delay time tidc time needed "Low" just after change Next, decrease from rapidly within 10µs. Release delay time trel1 case discharge over-current time needed "High" just after change Load short-circuiting detection delay time, Release delay time [Circuit 3.5V Increase from 3.5V rapidly within 10µs. Load short-circuiting detection delay time tshort time needed "Low" just after change Next, decrease from 3.5V rapidly within 10µs. Release delay time trel1 case load short-circuiting time needed "High" just after change
No.A1024-5/13
LV51140T
Measurement Circuits
Circuit Circuit
0.1µF 0.1µF V1=3.5V
LV51140
LV51140
Circuit
Circuit
0.1µF
LV51140
0.1µF
LV51140
Circuit
Circuit
0.1µF
LV51140
LV51140
Time Measurement
No.A1024-6/13
LV51140T
Application Circuit Example
Battery
LV51140T
External Components
Items Resistor Capacitor Resistor Symbol Recommended value 0.1µF 3.9k
supply voltage (VDD) this stabilized Moreover, current restriction resistances time reverse-connecting charger, time connecting charger which outputs voltage exceeding absolute maximum rating this sure connect these components. value large, over-charge detection voltage will become high current consumption this recommended. value small, this shutdown state time discharge over-current load short-circuiting. 0.1µF recommended. value within limits shown table about value order reduce current time reverse-connecting charger, recommend choose that total resistance values more than recommended value 3.9k. Note connection diagram each value external components shown above just recommendation. Including battery FETs, determine circuit after sufficient evaluation about your actual application. Note susceptible static electricity some pins easily damaged Handle carefully.
No.A1024-7/13
LV51140T
Description Operation
Normal condition This monitors battery voltage (VDD) voltage terminal, controls charge discharge. battery voltage (VDD) range from over-discharge detection voltage (Vdc) over-charge detection voltage (VC) terminal voltage range from charge over-current detection voltage (VIc) discharge over-current detection voltage (VIdc), this turns both charge discharge control FETs. This state called normal condition, charge discharge possible together. Discharge over-current detection, Load short-circuiting detection When discharge current becomes equal higher than specified value under normal condition, terminal voltage range from discharge over current detection voltage (VIdc) short-circuiting detection voltage (Vshort) that state maintained during more than discharge over-current detection delay time (tidc), this turns discharge control stop discharge. This state called discharge over-current condition. that time, terminal voltage equal higher than Vshort that state maintained during more than load short-circuiting detection delay time (tshort), this turns discharge control stop discharge. This state called load short-circuiting detection condition. While load connected, both conditions, terminal voltage equals potential load, falls discharge over-current release resistance (Rdwn) when load removed resistance between terminals battery pack (refer "Application Circuit Example") becomes larger than value which enables automatic return. Then terminal voltage becomes less than VIdc, that state maintained during more than release delay time (trel1), this returns normal condition. Note resistance value between terminals battery pack automatic return changes with battery voltage (VDD) VIdc. standard expressed with following equation. Resistance value automatic return Rdwn (VDD VIdc Charge over-current detection When charge current becomes equal higher than specified value under normal condition, terminal voltage becomes less than charge over-current detection voltage (VIc) that state maintained during more than charge over-current detection delay time (tic), this turns charge control stop charge. This state called charge over-current detection condition. Then terminal voltage becomes equals higher than that state maintained during more than release delay time (trel1) when charger removed load connected, this returns normal condition. Note terminal voltage becomes equal less than VSS-7V (typical), charge over-current detection delay time (tic) changes below. model (not changed) 125ms model (typical) 1.0s model 56ms (typical) Over-charge detection When battery voltage (VDD) under normal condition becomes equal higher than over-charge detection voltage (VC) that state maintained during more than over-charge detection delay time (tc), this turns charge control stops charge. This state called over-charge detection condition. Release from over-charge detection condition includes following three cases. When falls Vc-VHc without load that state maintained during more than delay time (trel2), this turns charge control returns normal condition. Over-charge hysteresis voltage When load installed discharge starts, discharge current flows through internal parasitic diode charge control FET. Then terminal voltage rises only voltage internal parasitic diode from potential. this time, terminal voltage higher than discharge over-current detection voltage (VIdc) equal less than this returns normal condition when this state continues more than delay time (trel2). case (2), terminal voltage higher than discharge over-current detection voltage (VIdc) equal higher than battery discharged until becomes less than then this returns normal condition when this state continues more than delay time (trel2).
No.A1024-8/13
LV51140T
Over-discharge detection When battery voltage (VDD) under normal condition becomes equal less than over-discharge detection voltage (Vdc) that state continues more than over-discharge detection time (tdc), this turns discharge control stops discharging. This state called over-discharge detection condition. Recovery from over-discharge detection condition achieved only connecting charger. Return from over-discharge When charger connected charging starts, charge current flows through internal parasitic diode discharge control FET. terminal voltage higher than charge over-current detection voltage (VIc), returns normal condition when becomes equal higher than VRdc this state continues more than delay time1 (trel1). terminal voltage lower than charge over-current detection voltage (VIc), same above-mentioned case, returns normal condition when becomes equal higher than this state continues more than delay time1 (trel1). This stops internal circuits (Shutdown condition) after detecting over-discharge reduces current consumption. (Max 0.1µA, 1.8V) battery charge function voltage charger (the voltage between larger than battery charge starting charger voltage (Vcha), battery charge becomes possible when terminal outputs terminal potential turns charge control FET.
No.A1024-9/13
LV51140T
Timing Chart
Discharge over-current detection, Load short-circuiting detection, Charge over-current detection
Load connected Load connected Charger connected Load connected
Vshort Vldc
tidc trel1
tshort trel1
trel1
VIdc Vshort
Over-charge detection voltage Over-discharge detection voltage Charge over-current detection voltage Discharge over-current detection voltage Load short-circuiting detection voltage
tidc tshort trel1
Charge over-current detection delay time Discharge over-current detection delay time Load short-circuiting detection delay time Release delay time
No.A1024-10/13
LV51140T
Over-charge detection
Load connected Charger connected Charger connected Charger connected Load connected
VC-VHc
Vldc
trel2
trel2
trel2
Vidc
Over-charge detection voltage Over-discharge detection voltage Over-charge hysteresis voltage Discharge over-current detection voltage
Over-charge detection delay time trel2 Release delay time
No.A1024-11/13
LV51140T
Over-discharge detection
Charger connected Load connected Charger connected Load connected Charger connected
Load connected
VRdc
Vldc
trel1
trel1
trel1
Over-charge detection voltage Over-discharge detection voltage VRdc Return from over-discharge voltage Charge over-current detection voltage Vidc Discharge over-current detection voltage
Over-discharge detection delay time trel1 Release delay time
No.A1024-12/13
LV51140T
SANYO Semiconductor Co.,Ltd. assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO Semiconductor Co.,Ltd. products described contained herein. SANYO Semiconductor Co.,Ltd. strives supply high-quality high-reliability products, however, semiconductor products fail malfunction with some probability. possible that these probabilistic failures malfunction could give rise accidents events that could endanger human lives, trouble that could give rise smoke fire, accidents that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO Semiconductor Co.,Ltd. products described contained herein controlled under applicable local export control laws regulations, such products require export license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written consent SANYO Semiconductor Co.,Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO Semiconductor Co.,Ltd. product that intend use. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. Upon using technical information products described herein, neither warranty license shall granted with regard intellectual property rights other rights SANYO Semiconductor Co.,Ltd. third party. SANYO Semiconductor Co.,Ltd. shall liable claim suits with regard third party's intellctual property rights which resulted from technical information products mentioned above.
This catalog provides information May, 2008. Specifications information herein subject change without notice. No.A1024-13/13

LV51140T 1-Cell Lithium-Ion Battery Protection LV51140T prot

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