Aerospace MT9805: High-Precision 18-Channel AFE Chip Empowering Next-Gen Battery Management

As the new energy and energy storage industry advances rapidly, precision, reliability, and scalability in Battery Management Systems (BMS) have become critical requirements. DisaiFa Technology's Aerospace MT9805 high-precision 18-channel AFE chip emerges as the ideal solution for commercial/industrial energy storage, high-voltage residential storage, and power battery applications, delivering:

• 18-cell voltage monitoring

• Ultra-high 3mV accuracy across -40°C to 125°C

• Flexible, scalable architecture

Key Advantages of MT9805

1. High-Precision Measurement with Full-Temperature Stability

• Monitors 4-18 series cells with <3.0mV TME (-40°C to 125°C)

• Triple 16-bit Σ-Δ ADCs with 0V-5V measurement range

• Compatible with most battery chemistries

2. High-Speed Configurable Data Acquisition

• Scans all 18 cells in 290μs

• 8 selectable sampling rates for noise/performance optimization

3. Robust Communication & Scalability

• Bidirectional isoSPI interface enables daisy-chaining for 100s of cells

• Maintains data integrity during communication faults

• Industrial-grade LQFP64 package

4. Integrated BMS Features

• Per-channel passive balancing with PWM duty cycle control

• Onboard 5V regulator + 9 configurable GPIOs (digital/analog)

• 7μA sleep mode for energy-sensitive applications

Target Applications

? Grid-Scale Storage: Containerized/C&I ESS solutions
? E-Mobility: EV/Electric vessel battery stacks
? Home Energy: High-voltage residential storage systems
? Industrial: Robotics, UPS backup power systems

Why MT9805?

? Aerospace-Grade Robustness: -40°C to 125°C operation
? All-in-One BMS AFE: Voltage sensing + balancing + communication
? Cost-Effective Design: High integration reduces BOM

DisaiFa Technology enables smarter, safer BMS solutions through:
? Precision measurement
? High-efficiency communication
? Modular scalability

Powering the future of high-voltage energy storage – one chip at a time.