MC3011 MITSUMI | Alldatasheet
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Technical content
1 cell lithium–ion/lithium–polymer battery protection IC MC3011 Series MC3011 series are protection IC with integrated MOS-FET for protection of the rechargeable lithium-ion or lithium-polymer battery. The overcharge, overdischarge and discharging and charging overcurrent protection of the rechargeable one-cell lithium–ion or lithium–polymer battery can be detected. (1) Range and accuracy of detection/release voltage Accuracy±27mV (Topr=–5°C to +60°C) *2 Please inquire to us about details of the setting of Overdischarge detection and release voltage. (2) Range of detection delay time Discharging overcurrent detection delay time ... Selection from 8ms, 12ms, 16ms, 20ms, 34ms (4) The overcharge detection delay timer reset time function (function for the pulse charge) is provided. fixed (5) Low current consumption (For “Charger connection release” the overdischarge release condition.) Max. 0.5µA (For “Voltage release” the overdischarge release condition.) (6) MOS-FET (7) Absolute maximum ratings Outline Features (Unless otherwise specified, Ta=25°C)
Pin no. Symbol Function
1 S1 S1 is a source pin of Discharge MOS-FET and a negative power supply, which is
connected to the negative terminal of the battery.
2 VDD VCC is a positive power supply pin, which is connected to the positive terminal of
the battery through Rvcc (330 to 470 ohm). 3 V V- is an input pin that detects overcurrent. This pin is connected to the source terminal of Charge MOS-FET through Ridt (2.7 kohm).
4 S2 S2 is a source pin of Charge MOS-FET, which is connected to a negative power
supply terminal of chargers. - D D is a common pin of two drains of Charge MOS-FET and Discharge MOS-FET. D must be open electrically. PLP-4D Pin assignment LINE UP Product name Package Optional function Detection / Release voltage Detection delay time Optional function 0V battery charge function Dicharge overcuttent detection voltage becomes dependent on VDD Overcharge detection voltage Overcharge release voltage Overdischarge detection voltage Overdischarge release voltage Discharging overcurrent detection voltage Charging overcurrent detection voltage Short detection voltage Overcharge detection delay time Overdischarge detection delay time Discharging overcurrent detection delay time Charging overcurrent detection delay time Short detection delay time Discharge current limit (@VCC=3.5V) Charge current limit (@VCC=3.5V) *1 *2 Vdet1 Vrel1 Vdet2 Vrel2 Vdet3-1 Vdet4 Vshort tVdet1 tVdet2 tVdet3 tVdet4 tshort Idischg Icharge V V V V V V V s ms ms ms µs A A *1 0V battery charge function Permission × Prohibition *2 Optional functions Provide × Not provided Please inquire to us, if you request a rank other than the above. PLP-4D … 5,000pcs/Reel =++ (Top view)
MITSUMI ELECTRIC CO., LTD. Typical application circuit R1 and C1 stabilize a supply voltage ripple. However, the detection voltage rises by the current of penetration in IC of the voltage detection when R1 is enlarged, and the value of R1 is adjusted to 1KΩ or less. Moreover, adjust the value of C1 to 0.01µF or more to do the stability operation, please. R1 and R2 resistors are current limit resistance if a charger is connected reversibly or a high–voltage charger that exceeds the absolute maximum rating is connected. R1 and R2 may cause a power consumption will be over rating of power dissipation, therefore the “R1+R2” should be more than 1KΩ. Moreover, if R2 is too enlarged, the charger connection release cannot be occasionally done after the overdischarge is detected, so adjust the value of R2 to 10KΩ or less, please. C2 and C3 capacitors have effect that the system stability about voltage ripple or imported noise. After check characteristics, decide that these capacitors should be inserted or not, where should be inserted, and capacitance value, please. 6]LYJOHYNL 6]LYKPZJOHYNL +PZJOHYNLV]LYJ\\YYLU[ *OHYNLV]LYJ\\YYLU[ :OVY[ *V\\U[LY 3VNPJ 6ZJPSSH[VY =JLSS*OHYNL +6<; *6<; 9W\\ 9ZOV[ *LSS =++ =::