MCP73831
Single-cell lithium-ion and lithium-polymer charge management controller uses a linear constant-current and constant-voltage charging algorithm. Charge current is programmed with an external resistor over a 15 mA to 500 mA range, and voltage regulation options include 4.20 V, 4.35 V, 4.40 V, and 4.50 V. The device integrates the pass transistor, current sensing, reverse-discharge protection, thermal regulation, automatic power-down, and a tri-state charge status output. Industrial temperature operation is specified from -40°C to +85°C, with package options including 5-lead SOT-23 and 8-lead 2 mm by 3 mm DFN.
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About MCP73831
The Microchip MCP73831 Power Supplies datasheet provides detailed technical specifications, pinout information, and operating characteristics. This component: Single-cell lithium-ion and lithium-polymer charge management controller uses a linear constant-current and constant-voltage charging algorithm. Charge current is programmed with an external resistor over a 15 mA to 500 mA range, and voltage regulation options include 4.20 V, 4.35 V, 4.40 V, and 4.50 V. The device integrates the pass transistor, current sensing, reverse-discharge protection, thermal regulation, automatic power-down, and a tri-state charge status output. Industrial temperature operation is specified from -40°C to +85°C, with package options including 5-lead SOT-23 and 8-lead 2 mm by 3 mm DFN.. Key parameters include Absolute maximum VDD: 7.0, Automatic recharge threshold ratio options: 94.0; 96.5, Battery chemistry: Lithium-Ion; Lithium-Polymer, Cell count: Single cell, and Charge algorithm: Constant-current/constant-voltage. MCP73831 is manufactured by Microchip as part of their Power Supplies product line. On this page you can view and download the PDF datasheet, check specifications, and find similar components.
Specifications
- Manufacturer
- Microchip
- Category
- Power Supplies
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Parameters
| Absolute maximum VDD | 7.0 |
| Automatic recharge threshold ratio options | 94.0; 96.5 |
| Battery chemistry | Lithium-Ion; Lithium-Polymer |
| Cell count | Single cell |
| Charge algorithm | Constant-current/constant-voltage |
| Charge termination current ratio options | 5; 7.5; 10; 20 |
| DFN thermal resistance junction-to-ambient | 76 typ |
| Human body model ESD protection | ≥4 |
| Maximum supply voltage | 6 |
| Minimum supply voltage | 3.75 |
| Operating junction temperature range | -40 to +125 |
| Precondition current ratio options | 10; 20; 40; disabled |
| Programmable charge current range | 15 to 500 |
| Regulated output voltage options | 4.20; 4.35; 4.40; 4.50 |
| SOT-23 thermal resistance junction-to-ambient | 230 typ |
| Specified ambient temperature range | -40 to +85 |
| Status output type | Tri-state |
| UVLO start threshold | 3.45 typ |
| Voltage regulation accuracy | ±0.75 |