Bumalik sa Monolithic Power Systems (MPS)

Monolithic Power Systems (MPS) MP2797 Battery Monitors & Protectors

Monolithic Power Systems (MPS) MP2797 Battery Monitors and Protectors are high-accuracy 7-cell to 16-cell battery monitors and protectors with coulomb counting. These devices are designed for multiple-cell series Battery Management Systems (BMS) and provide a complete Analog Front-End (AFE) monitoring and protection solution. These battery monitors and protectors support connections for 7-cell to 16-cell batteries, with an absolute voltage exceeding 80V on particular pins. The MP2797 battery monitors and protectors come with the option to drive external balancing transistors (MOSFET or BJT). These devices are ideal for Energy Storage Systems (ESS), E-bikes, E-scooters, Light Electric Vehicles (LEVs), power and gardening tools, battery backups, and UPS.

The MP2797 battery monitors and protectors include High-Side MOSFET (HSFET) drivers for charge and discharge control. These devices incorporate Over-Current Protection (OCP), Short-Circuit Protection (SCP), battery Undervoltage Protection (UVP), battery Over-Voltage Protection (OVP), and high-/low-temperature protection.

Features

  • Incorporates dual Analog-to-Digital Converter (ADC) architecture:
    • <±2% State-of-Charge (SOC) error with MPF4279x fuel gauge
    • <5mV cell voltage measurement error 
    • <±0.5% current/coulomb counter error
    • Strictly synchronized current/voltage measurement for impedance sensing
  • Includes high-side N-channel MOSFET:
    • Drivers for charge and discharge control
    • Supports MOSFET soft-start discharge
    • Control to eliminate pre-charge circuit
    • Drives up to 100A DC with parallel N-channel MOSFETs
  • Hardware configurable protections:
    • Charge/discharge OCP and SCP
    • Cell UVP and OVP
    • Pack UVP and OVP
    • Cell low-/high-temperature protection
    • Die high-temperature protection
  • Passive cell balancing up to 58mA per cell:
    • Drive external balancing transistors
    • Automatic or manual control
  • Additional features:
    • Integrated 3.3V and 5V LDOs
    • Reduced current standby mode
    • High-voltage and low-voltage GPIOs
    • Dedicated thermistor inputs
    • Open-wire detection
    • Persistent dead battery flag
    • Lockable Multiple-Time Programmable (MTP) memory for key thresholds
  • I2C or SPI interface with 8-bit CRC
  • Random cell connection tolerant
  • Available in a TQFP-48 (7mm x 7mm) package

Applications

  • Energy Storage System (ESS)
  • E-bikes and E-scooters
  • Light Electric Vehicles (LEVs)
  • Power and gardening tools
  • Battery backups and UPS

Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MP2797 Battery Monitors & Protectors

Typical Application Diagram

Application Circuit Diagram - Monolithic Power Systems (MPS) MP2797 Battery Monitors & Protectors

Related Products

Monolithic Power Systems (MPS) MP2796 Battery Monitors & Protectors

7-cell to 16-cell devices that are designed for multiple-cell series battery management systems.

Learn Moretungkol sa Monolithic Power Systems (MPS) MP2796 Battery Monitors & Protectors View Productskaugnay ng Monolithic Power Systems (MPS) MP2796 Battery Monitors & Protectors

Videos

Related Evaluation Boards

Monolithic Power Systems (MPS) EV2797-000x-FP-00B Evaluation Boards

Designed to demonstrate the capabilities of the MP2797 monitoring and protection ICs.

Learn Moretungkol sa Monolithic Power Systems (MPS) EV2797-000x-FP-00B Evaluation Boards View Productskaugnay ng Monolithic Power Systems (MPS) EV2797-000x-FP-00B Evaluation Boards
Inilathala: 2024-06-20 | Na-update: 2024-07-10