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MAX1879 리튬이온 배터리 충전 모듈
(MAX1879 Lithium-ion Battery Charger Module)
개요
- 본 제품은 MAX1879 리튬이온 배터리 충전 모듈 입니다.
- 5V 전원을 입력하여 4.2V, 4.35V, 3.6V 리튬이온 배터리를 충전할 수 있는 제품입니다.
- 솔더 점퍼를 이용하여 출력 전압을 설정할 수 있습니다.
특징
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Characteristics:★ ordinary lithium battery 4.2V, high-voltage lithium battery 4.35V, 3.6V lithium iron phosphate-take★ pulse gap detection voltage, the contact resistance is almost no effect★ ultra-high accuracy of 0.5% (0.1% actual)★ no current limiting through-charging, perfectly compatible with solar panels★ anti-reflux, do not drain the battery is fully charged after inputs★ automatic battery polarity identification, random access can charge★ input of the anti-reverse, reverse does not burn board★ thin 3 mm, to facilitate a variety plug the gap in★ high efficiency through-charging, self-heating small★ Safety Timer 6 hours★ full-page full-1 precision resistors, the entire large volume of precious metals1210 X7R multilayer ceramic capacitor of the most stable temperature characteristics★ stoped, the charging status indicatorDisadvantages: Any flow of power demanding, there are relatively injury overcharge the battery.The circuit is not directly charge the cell phone circuit boards!Only for rechargeable lithium batteries!If you use this charge sheet direct charge mobile phones,will be free technical support, and will not support the return!Parameters:Volume: 28mm * 18mm * 3mm, ultra-thin ultra-smallInput voltage: 4.5-5.5V (not recommended too high, otherwise injury battery)Cut-off voltage: 4.2V / 4.32V / 3.6V plus or minus 0.5 percent jumper selectionOutput current: not limit, equal to the input currentTimeout timer: about 6.25 hours
문서
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usage method：in+，in-Connect the positive and negative pole of power supply。Power Supply5v-8v，When the voltage is high, the impulse is slow。Optimum voltage5v。ledPlease pay attention to welding：The shortest leg is connected to the negative side of the power supply（The hole in the upper left corner）。The three holes in the upper left corner correspond to each otherledThree legs There are two switches in the lower right corner。
The short circuit above is4.35v，The short circuit below is lithium iron。It's not short circuited4.2v
The red light is on when charging，There will be flashes，The blue light is on。The red flicker rate starts to slow，Then it got faster。The blue light comes on after full charge，If you don't rush to use it，You don't have to take off the battery，Trickle charging，When trickle charging，The blue light is flashing，It's blinking very slowly，Don't look carefully，Cannot see。Trickle about6Two hours，And then the charging is over
Battery connection：
method1： The battery is connected to the far right“The battery has no positive or negative poles”，Maximum current4a。2aThe above need to strengthen heat dissipation
method2：APoint to the positive pole of the battery，The negative pole of the battery is connected to the negative pole of the power supply，The maximum charging current is4a，It's just that there's no automatic polarity conversion。2aIt's better to add radiator。4aThe above may require air cooling。
Practice from4.3V-6VIt can charge stably，The temperature rise of the charging board is basically equal to the room temperature。
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Instructions:
Charging MAX1879 precision is now recognized as the most accurate.The charge sheet designed for enthusiasts make fast, accurate and easy to create a universal charger.To adapt to the growing number of mobile phone lithium batteries.
The board can use 4.5-6V perfect solar cell to charge the battery, comes with anti-reflux and highly efficient(constant current source, then more than 99%), do not waste little bit of solar power.
The new direct support 4.35V lithium battery, full cut-off voltage of about 4.32V(measured Samsung note2 charging cut-off voltage is 4.31V) when fully loaded on the phone 100% perfect power
When connected to the outermost end of two automatic polarity terminals connected together,it is recommended to limit the charging current is less than 2A.
If direct from fds4435 charging (the output of that hole alone, high current terminal),it is recommended to limit the charging current is less than 4A. No automatic polarity switching function.
Voltage Setting Jumper: a pad in half, put together the corresponding voltage is set,as shown in the left even from setting 3.6V, rechargeable lithium iron phosphate batteries,the right even to set up 4.35V, charging high voltage lithium battery, not even the default 4.2V ordinary lithium batteries.
Comes without red and blue color / red LED one, you need buy it in our storeAt your own soldered to the circuit, welding methods such as baby pictures shownNOTE :Color LED shortest pin blue pin (or green pins), and therefore the shortest pinshould be marked with the figure above the blue-position welding
It is recommended to take a good battery and then power,or battery voltage is higher than 4V will not be activated if the charge
Charging red lights, follow the 1879 pulse shimmering, slow initial charging flicker frequency,flicker accelerate when approaching full, red light off after full of blue lights
If you use ordinary power without limiting, in the series with the input current limitingresistor suitable to avoid excessive current damaging the power panels and batteries
