MCP73843-420I/MS
Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 5.2V input, 4.2V / 1A charge, MSOP-8

| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | MCP73843-420I/MSCopy |
| Manufacturer Standard Lead Time | 7 weeks |
| Order Code | 1852163 |
| Your Part Number | |
| Technical Datasheet |
Need more?
| Quantity | Price |
|---|---|
| 1+ | NT$58.600 |
| 25+ | NT$49.220 |
| 100+ | NT$45.670 |
Product Information
| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | MCP73843-420I/MSCopy |
| Manufacturer Standard Lead Time | 7 weeks |
| Order Code | 1852163 |
| Technical Datasheet | |
| Battery Type | Li-Ion, Li-Pol |
| Input Voltage | 5.2V |
| Battery Charge Voltage | 4.2V |
| Charge Current | 1A |
| IC Case / Package | MSOP |
| No. of Pins | 8Pins |
| No. of Cells | 1Cells |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| IC Mounting | Surface Mount |
| Product Range | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
The MCP73843-420I/MS is an advanced single cell lithium-ion/lithium-polymer charge Management Controller for use in space-limited and cost-sensitive applications. This combines high accuracy constant-voltage (0.5% maximum), constant-current regulation, cell preconditioning, advanced safety timers and automatic charge termination. The device provides a complete, fully functional, stand-alone charge management solution for applications utilizing single cell lithium-ion or lithium-polymer battery packs. This operates with an input voltage range of 4.5V to 12V and is fully specified over the ambient temperature range of -40 to +85°C.
- Safety charge timer
- Automatic charge termination
- Automatic recharge
- Charge status indicator
- 0.5% (maximum) High accuracy voltage regulation
- Automatic preconditioning of deeply depleted cells
- 0.25µA (typical) Shutdown current
- No inductor required
- Programmable charge current
- Automatic power-down when input power removed
Applications
Power Management, Consumer Electronics
Warnings
ESD sensitive device, take proper precaution while handling the device.
Technical Specifications
| Battery Type | Li-Ion, Li-Pol |
|---|---|
| Battery Charge Voltage | 4.2V |
| IC Case / Package | MSOP |
| No. of Cells | 1Cells |
| Operating Temperature Max | 85°C |
| Product Range | - |
| SVHC | No SVHC (04-Feb-2026) |
| Input Voltage | 5.2V |
|---|---|
| Charge Current | 1A |
| No. of Pins | 8Pins |
| Operating Temperature Min | -40°C |
| IC Mounting | Surface Mount |
| MSL | MSL 1 - Unlimited |
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | United States Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85423990 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .000617 |
