lv51142t Sanyo Semiconductor Corporation, lv51142t Datasheet
lv51142t
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lv51142t Summary of contents
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... Ordering number : ENA1641 LV51142T Overview The LV51142T is protection IC for rechargeable Li-ion battery by high withstand voltage CMOS process. The LV51142T protect single-cell Li-ion battery from over-charge, over-discharge, charge over-current and discharge over-current. Features • High accuracy detection voltage • Delay time (internal adjustment) • ...
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... Over-charge release Note :*1 When the charger is connected under over-discharge , this means the time after the over-discharge detection is released. *2 The over-discharge detection is released at this voltage only when the charger is connected. The over-discharge detection isn't released if the charger isn't connected. LV51142T Symbol Conditions VC ...
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... FET gate connection for discharge control (CMOS output Voltage monitoring for charger negative FET gate connection for charge control (CMOS output N Positive power input Negative power input LV51142T 0.4 0.3 0.2 0.1 0 – Top view 3 CO Description Pd max -- Ta Specified board : 33×5×1.0mm 3 glass epoxy 0 ...
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... V2 is increased rapidly within 10μs. • 0V battery charge starting charger voltage --- [Circuit 3] Set and decrease V2 gradually. 0V battery charge starting charger voltage Vcha is V2 when VCO goes "High" (V1-0.1V or higher). LV51142T Oscillator Level Counter Shifter ...
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... VDO to go "Low" just after the change of V2. Next, decrease V2 from 3. rapidly within 10μs. Release delay time 1 trel1 in case of load short-circuiting is the time needed for VDO to go "High" just after the change of V2. LV51142T No.A1641-5/13 ...
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... VDO V • Circuit 0.1μF LV51142 LV51140 VCO • Circuit 0.1μF LV51140 LV51142 IDO A V4 LV51142T • Circuit 2 0.1μF V1=3. VCO • Circuit 10MΩ V • Circuit ...
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... Note 1 : The connection diagram and each value of external components shown above are just recommendation. Including a battery and FETs, determine the circuit after sufficient evaluation about your actual application. These numbers don't mean to guarantee the characteristic of the IC Note 2 : The IC is susceptible to static electricity and some pins are easily damaged by it. Handle the IC carefully. LV51142T ...
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... In case (2), if the V M terminal voltage is higher than the discharge over-current detection voltage (VIdc) and equal to or higher than VC, battery is discharged until V DD becomes less than VC, and then this IC returns to the normal condition when this state continues more than the delay time 2 (trel2). LV51142T No.A1641-8/13 ...
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... Charge to 0V battery 0V battery charge function If the voltage of charger (the voltage between V DD and larger than the 0V battery charge starting charger voltage (Vcha), 0V battery charge becomes possible when CO terminal outputs V DD terminal potential and turns on the charge control FET. LV51142T No.A1641-9/13 ...
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... VC : Over-charge detection voltage Vdc : Over-discharge detection voltage VIc : Charge over-current detection voltage VIdc : Discharge over-current detection voltage Vshort : Load short-circuiting detection voltage LV51142T Load connected Charger connected tshort trel1 trel1 tic : Charge over-current detection delay time tidc : Discharge over-current detection delay time ...
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... Over-charge detection voltage Vdc : Over-discharge detection voltage VHc : Over-charge hysteresis voltage Vidc : Discharge over-current detection voltage LV51142T Load connected Charger connected tc trel2 trel2 tc : Over-charge detection delay time trel2 : Release delay time 2 Load connected Charger connected ...
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... Over-discharge detection VRdc VC : Over-charge detection voltage Vdc : Over-discharge detection voltage VRdc : Over-discharge return voltage Vic : Charge over-current detection voltage Vidc : Discharge over-current detection voltage LV51142T tdc : Over-discharge detection delay time trel1 : Release delay time 1 No.A1641-12/13 ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of December, 2009. Specifications and information herein are subject to change without notice. LV51142T PS No.A1641-13/13 ...