Home > Products > DCDC buck converter > 3.7V lithium battery charger module 480-500mA 4.5-6v input CC CV ,China Supplier
3.7V lithium battery charger module 480-500mA 4.5-6v input CC CV ,China Supplier
- 100000 Piece / Pieces per Month
- Shenzhen China
- Credit Card
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Product Details
Place of Origin: | Guangdong, China | Brand Name: | LC | Model Number: | LCDD402-151 |
Output Power: | Other | Output Type: | Single | Size: | 15*8*2MM |
Input Voltage: | DC4.5-6V | Output Voltage: | DC3.7v | Type: | DC/DC Converters |
Output Current: | 480-500mA |
Product Description
We produce MODULE ! CUSTOM-MADE module is OK! Our company produce your own board!
3.7V 4.2V Lithium battery Charger Board
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Module parameter:
1 module name: 3.7V lithium battery charging module (which can be charged in parallel with the single or multi node 3.7V of)
2 module size: length 15mm* width 8mm* high 2mm (including the highest electronic components), PCB plate thickness 1mm,
The 3 module properties: constant current and constant pressure + trickle / automatic conversion type charging module
4 input voltage: VCC input positive, GND input negative, input voltage range 4.5V-6.5V
5 output voltage: B+ output connect battery positive, B- output connection battery load, solder wire connection
6 output current: the default charge constant current is 480-500mA (which can be improved to the maximum 800mA).
7 working temperature: industrial grade (-40 to +85)
Module function:
This module is a single 3.7V lithium battery constant current / constant voltage linear charging module, can be charged through the USB port on the battery, but also can be used as an independent lithium battery charger.
Charging when the battery is full automatic termination charge to enter the standby mode, the standby current is less than 25ua. If you remove the input power supply module automatically into low current mode drawn from the battery less than current 20ua.
The module can automatically adjust the charging current in high power and high temperature environment to limit the temperature of the charging chip to ensure the safety of charging, and has the function of thermal protection.
The module has the function of voltage detection, automatic cycle charge, charging status LED indicator light.
End of charge voltage 4.2V accuracy of 1%, the battery is below 2.8V when automatic trickle of current charging, the soft start function, maximum 800mA can be programmed charging current.
Charge detailed process:
When the battery has been connection state and the input power supply is normal (4.5V-6.5V), if detected battery voltage is lower than the 4.05v module automatically start charging and into constant current 500mA charging mode, when the battery voltage reaches 4.2V automatically into constant voltage charging mode when the charging current began to gradually decline in, when the charging current dropped to 10% (around about 45mA) below into trickle current charging charge compensation mode (this mode charging status indicator light will be extinguished), trickle charge until completely full after the charging is finished to enter standby mode and continuous monitoring battery voltage, once detected battery voltage is lower than the 4.05v will re trigger charging and the process is repeated.
If the first to electricity, when the detected battery voltage is below 2.8V module will use Juan flow charging module to about 10% of the constant current to the battery charging, the battery voltage slowly rebounded to above 2.8V safety charging zone to 500mA constant current charging.
In addition, when the battery voltage is lower than 4.2V and higher than 2.8V, the battery voltage is directly started to charge the battery.
Use notes
1 test current meter can only be connected to the input end of the charging plate.
2 charging current is the best battery capacity of 0.37C, which is the capacity of 0.37 times, such as the 1000mAH capacity of the battery charge current 400 so it is enough. Too big charge fast effect is poor, and the end of the battery voltage drops more!
3 charging connection wire cannot be too long too small. Such connection resistance. Too thin to punch through the battery voltage drops more.
4 and the battery is connected to the best good contact, or the end of the battery voltage drops on more.
5 if the input voltage is high, such as 5.5 or even 6V, it is possible to cause the charge current is lower than the set of current, which is normal. Because the high voltage chip heat will automatically reduce the charging current, not to the chip burned. Chip in the work of about 60 degrees fever is normal. After all charge current.
6 input and output module devices do not reverse so as not to burn out.
SHIPPING TERMS
1.Ship to whole world : DHL , UPS, FEDEX, EMS, HKPOST, SGPOST,SWPOST
2.Lead time:2days. If we don't have stock at that time, it takes 2-4days to produce it.
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PAYMENT TERMS
1.We accept PAYPAL, TT, WESTERN UNION, ESCROW
2.Commission:
*Paypal: total sum *0.041
*Escrow: total sum *0.05
*TT: $28-$45(according to amount)
*Western union: $0
GUARANTEE PERIOD
3 Months, if the quality have any problems, We have a good after sale
service team will slove the quality problems for you.
1.If you test the products and it doesn't work, pls keep it and send it to us in
1 month, we will send the good one to you with the following order.
2.If the product is already used by you, then no warranty.
3.If the product is broken by man-made, then no warranty.
CONTACT US
Contact Us
- Shenzhen Chip Leader Electronic And Technology Co., Ltd.
- Contact nameVenna Hong
- Phone86-755-83790675
- Address8H,Hangdu mansion,Huafu Rd.,Futian District,shenzhen Shenzhen,Guangdong
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