Welcome back, electronics enthusiasts! If you are designing portable power solutions using single-cell Lithium-Ion or Lithium-Polymer batteries, the TP4056 is likely your go-to charge controller. However, testing hardware prototypes directly can sometimes lead to component failure if margins aren't checked beforehand.
In this guide, we provide an overview of the TP4056 SPICE simulation setup, explain how the testing circuit functions, and give you access to download the simulation files.
Watch the Video Tutorial
The provided SPICE model testing environment accurately mimics a real-world charging module layout. Key components include:
The Core Charger (U1 - TP4056): Manages the CC/CV charging cycle. Resistor $R_3$ ($1.2\text{ k}\Omega$) sets the fast-charge current limit to $1\text{A}$.
Protection Circuitry (U2 & Q1): Integrates the DW01A battery protection IC and dual N-channel MOSFETs (FS8205A) to safeguard against overcharge, over-discharge, and short circuits.
Status Indicators: Dual LED configuration to monitor charging (
CHRG) and standby/complete (STDBY) states.Load & Battery Cell: Simulated single-cell Li-ion battery with a dynamic discharge profile powering a test load.
Understanding the Interactive Analysis Graph
When running the interactive analysis, the output graph plots Battery Voltage ($\text{VB+}$) against Charging Current ($\text{IB+}$) across several key operational zones:
Discharge State: The cell supplies current to the load, dropping the terminal voltage safely.
Pre-Charge Phase: A low trickle current gently revives deeply depleted cells.
Constant Current (CC) Mode: Full programmed current ($1\text{A}$) is injected, and voltage rises linearly.
Constant Voltage (CV) Mode: Voltage locks at $4.2\text{V}$ while current decays exponentially.
Termination: Charging shuts off automatically once the current drops to $1/10\text{th}$ of the set value ($100\text{ mA}$).
📥 Free Download Section
Get the complete schematic layout and model files for your simulator below:
File Type:
.zip(Includes schematic layout and subcircuit netlist)Compatible With: MultiSim / LTspice / Popular SPICE software
Let us know in the comments below if you run into any simulation convergence issues or have questions about tweaking your charge current resistors!
Other spice models and proteus simulation models are available our download repository web page.
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