TP4056
Manufacturer
Model
TP4056
Category
The TP4056 is a cost-effective single-cell battery management IC designed for lithium-ion/polymer applications, offering basic charge control and protection features in a compact ESOP-8 package. It is suitable for consumer electronics and IoT devices requiring reliable battery management within specified voltage and temperature ranges, with thermal and storage precautions critical for optimal performance.
Reference Pricing
Reference Stock
Specifications
| Charge Current | 1A |
| Charge Voltage | 2.5V to 6.5V |
| Communication Interface | N/A |
| Compatibility | N/A |
| Dimensions | N/A |
| Discharge Current | N/A |
| Discharge Voltage | N/A |
| Operating Temperature Range | -40℃ to 85℃ |
| Operating Voltage | 2.5V to 6.5V |
| Protection Functions | Overcharge Protection, Overdischarge Protection, Overtemperature Protection, Short Circuit Protection |
Function And Role
Core Function
Single-cell lithium-ion/polymer battery management with integrated charge control
Key Characteristics
- ESOP-8 package
- 4V~6V supply range
- 4.2V charging saturation voltage
- ROHS compliant
- Operating temperature -40°C~+85°C
Application Domains
Basic Scenarios
- Consumer electronics with single-cell batteries
- Portable power tools
- Wearable devices
Extended Scenarios
- IoT sensors with long-life batteries
- Emergency lighting systems
- Solar-powered equipment
Precautions
| Soldering | Use reflow soldering for ESOP-8 package with 3-5 minute peak temperature (≤250°C) |
| Current Limit | Max charge current not specified in parameters (verify datasheet) |
| Voltage Limit | Absolute maximum supply voltage 6.5V |
| Thermal Management | Thermal protection required for continuous operation above +70°C |
| Storage | Store at ≤40°C and <5% relative humidity |
| Risk Warnings |
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Alternative Model Params
- Supply voltage range (must match 4V~6V)
- Operating temperature range (-40°C~+85°C)
- Battery chemistry compatibility (Li-ion/Polymer)
- Charging saturation voltage (4.2V ±1%)
Design Recommendations
| Layout | Maintain 5mm clearance between IC and heat-generating components |
| Thermal | Use thermal vias under package pins for heat dissipation |
| Compatibility | Ensure 1μF decoupling capacitor at VCC pin |
| Testing | Validate charge cycle performance at 85°C ambient temperature |
Market Positioning
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| Weaknesses |
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