TP4056 Lithium ion Lithium iron Battery Charge Controller

TP4056 is a Lithium iron rechargeable battery charge controller IC. The TP4056 IC is providing full constant voltage and constant current characteristics for charging a single 3.7 volt Lithium cell or battery. The TL4056 is ideal chip to do the function. It's charging rate or charging current could be controlled by external resistor on program pin. It has both charging and charge complete sink type input pins where two different color LEDs could be connected to show the status of the chip. The TP4056 IC comes in SOP package and it needs very few external component to function. The less external components and its small size makes it ideal and the best choice to be used in portable applications.

TL4056 IC typical charger circuit

TP4056 can be used in usb applications wall mounted power packs. tp4056 don't need a blocking diode to prevent battery reverse current flow due to internal chip mosfet arrangement. tp4056 has internal thermal protection which prevents chip during high current and high temperature operation or in high ambient temperature. tp4056 output charging voltage at battery terminals are fixed to 4.21V or 4.2 volts. The current rate could be set by a single external resistor. When the charging current reaches to 1/10th of the charging current, the chips stops charging it disconnects battery from charging source. For monitoring two status LED are provides which shows the charging state.

TL4056 or TP4056 charger arrangement
tl4056 ic current programming resistance selection could be done using the following table bellow.
TL4056 IC program current setting resistance values.


The maximum charging current of the tl4056 chip could be programmed 1000mA or 1A linear. There is no need of external mosfet to charge the battery. The internal mosfet inside the chip is enough to accomplish the job. Tl4056 input voltage range is from -0.3V to 10V. TL4056 maximum junction temperature is 144℃ and the working temperature is -40 ℃～85℃

TP4056 SOP pakage

TL4056 charge controller is widely used in digital camera, usb powered chargers, torch lights, battery operated toys, cellphones, cordless telephones, pda, GPS devices, portable devices, charging stations, stroboscope, digital oscilloscope battery powered, multimeters with chargeable batteries and many more.

Comments

Post a Comment

Popular posts from this blog

Microwave oven front panel keypad repair and modification

Image
Here is the video on youtube. You must watch it if you are a Urdu to Hindi viewer: Here is the video on youtube. You must watch it if you are an English viewer: The microwave oven is a useful machine to preheat or cook food. The microwave oven is working reliably but now a days Chinese microwave oven have big front panel keypad failure. The keypad is breaking down in one year of less time. The repair is not easy and sometimes the replacement parts are not readily available then it becomes another problem. The solution to such a problem is a modification with existing easily available parts and some wire connections to the main board. The modification is a very robust an reliable work so that will never break down or if breaks down, the repair would be way easy and low cost. Here is a little detail with images is included for such a modification work. Most of the images are from the video associated with this blog post. Anyhow it will further explain the important
Read more

Sandwich maker or sandwich grill repair and maintenance

Image
Here is a youtube video covering all these details in video: Sandwich maker or sandwich grill is a common house hold electrical appliance used in every house and every facility. They are daily use electrical appliances. They are of different make and model. One thing is common in all of them is the heating element and a sort of temperature controlling switch operated on some preset or selectable temperature range. The heating element are heated by line power and are switched off when the desired temperature is reached. By that way the grill or heating plate is heated and the toast put there is also grilled or heated by that temperature. Sandwich makers or sandwich grill are reliable equipment but some times they develop troubles. The result is no heating grill or heating plates. Normally there are electrical connection problem or temperature controlling switch problem. The heating element failure is also possible but that is a rare fault. So if a grill or sandwich
Read more

How to check SMD or surface mount resistances value from their code and test on multimeter

Image
Test smd resistor using a multimeter Digit code for smd resistors Here is the video on this topic you can watch for further details: Surface mount resistors or SMD resistors are very commonly used in electrical and electronics circuits. They are found everywhere in all electronics equipment today. They have certain value in resistance or Ohms which is mentioned on them in the form of a digital code. Here the following image is showing a surface mounted resistors circuit where you can see the SMD resistors and the rest of soldering on the PCB. Her in this image you can see the surface mounted or SMD resistances with a digital code on them. The resistors have a specific value code on them. This code is easy to learn and off course easy to print on the small and tiny body of an SMD resistor. This code consists of three digits or three value alfa numeric code is also used. Sometimes this could be a four digit code also in case of very high precision resistors. We will only dis
Read more