newlandmark

CN3705 multi-cell lithium battery charging module

Overview

CN3705 has constant current and constant voltage charging modes, which is very suitable for charging lithium batteries or lithium iron phosphate batteries. In constant voltage charging mode, the constant voltage charging voltage is set by an external resistor divider network; in constant current charging mode, the charging current is set by an external resistor. 1. The voltage divider composed of R6 and R7 can set the constant voltage charging voltage. The value of this design is suitable for charging 6-cell lithium batteries (25.2v) 2. Resistor R4 can set the cut-off charging current. When R4 is 0R, the constant voltage Charging ends when the charging current is 9.17% of the set constant charging current. 3. Thermistor R2 can be replaced by a 10k resistor

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-07-05 19:11:26

Constant power detection laser controller
Perform PID control on the output power of the semiconductor laser to keep it stable within a certain range, so that it can be applied in the fields of fiber optic sensing and measurement. At present,
How to Solder Field Effect Transistors and CMOS Integrated Circuits
When welding insulated gate (or double gate) field effect transistors and CMOS integrated blocks, due to their high input impedance and small inter-electrode capacitance, a small amount of static char
Roar
Artgoin is a paradise for art and a treasure house for art. People who love art should go there to have a look. You may find a rare treasure there.
Question: What is the difference between k9k8G08 U0A and K9K8G08 U0M?
As the title says, what is the difference between U0A and U0M? Why is it that my program can be downloaded fine with U0M, but there is a verification error when downloading with U0A?
pocket pc2003 mobile soft keyboard
How to move the soft keyboard in pocket pc2003? Modify the properties in SIPINFO si; Use SHSipInfo(); to display the keyboard. The keyboard is always at the bottom of the screen and has not changed.
How to make the buttons on the service property page of the written service program gray? Urgent, please help
I am writing a service program now. I hope that when I view the service in "Services" of "Computer Management", all the changeable places will be grayed out, that is, users cannot make any changes, ju

Datasheet More

Circuits More