MPF42791 is a 2 to 16 stacked cells battery pack fuel gauge with resistance detection and thermal model. It is a drop-in solution to provide comprehensive status information on lithium-ion battery strings up to 16 series cells. The MPF42791 estimates the internal state-of-charge (SOC) and state-of-health (SOH) for each cell, as well as the full pack. The MPF42791 also determines impedance, remaining runtime, charge time, and instantaneous available power. On-board memory enables the lifetime logging of key parameters. The MPF42791 is simple to use and supports a variety of lithium cell chemistries and cell sizes. A few basic configurations allow for quick set-up, and advanced configuration capabilities can fine-tune the device for specific applications. Applications include light EVs: scooters, bikes, and golf carts, energy storage: uninterruptable power supplies (UPS) and renewable energy, industrial robots, floor cleaners, and forklifts, cordless tools and gardening equipment.
- Compatible with commonly used battery monitors for up to 16 series cells
- ±2.5% state-of-charge (SOC) accuracy when paired with MP279x battery monitors
- Provides critical battery information
- Supports a wide variety of lithium cells
- Provides lifetime logging, supports 5-level LED SOC indicator with push-button trigger
- 2.5V minimum supply voltage
- Low current consumption: 6µA in disabled mode and 135µA (average) in operating mode during rest
- Supports up to 400KHz I2C with CRC for robust communication
- Can also be paired with other analogue front-end (AFE) or battery stack monitors
- Available in a compact TQFN-32 package
Footnotes MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.
Other details
| Brand |
MONOLITHIC POWER SYSTEMS (MPS) |
| Part Number |
MPF42791DRT-0B-0000-P |
| Quantity |
Each (Supplied on Cut Tape) |
| Technical Data Sheet EN |
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