MAX17823BGCB/V+

MAX17823BGCB/V+ is Maxim’s automotive‑grade high‑voltage multi‑cell battery‑monitoring IC (BMS front end) for EVs and energy‑storage. It provides cell‑voltage measurement across a multi‑cell stack, current/temperature sensing, and programmable cell balancing control with robust fault protection, all in a single device. The device includes multi‑channel analog front‑end and on‑chip ADCs, and it communicates with a host microcontroller via SPI. Features typically include over/under‑voltage, overcurrent, overtemperature protections, watchdog and fault latches, programmable thresholds, and cell‑balancing drive control. It is designed to operate from a high‑voltage pack rail and interfaces with external sense resistors, cell taps, balancing FETs, and a BMS MCU. The BGCB/V+ suffix denotes a specific automotive‑grade package and temperature/range variant. Common applications: EV/HEV battery packs and stationary energy‑storage systems requiring reliable cell monitoring, balancing, and safety monitoring.

Key features of MAX17823BGCB/V+:
- Battery monitor/protector for Li‑ion packs up to multi‑cell (up to 16S)
- Per‑cell voltage sensing, pack current sense, and multiple temperature inputs
- Fuel-gauge functionality: coulomb counting with SOC/SOH estimation
- Safety protections: overvoltage/undervoltage, overcurrent/short-circuit, over/under‑temperature, thermal shutdown
- Cell balancing control (typical passive balancing)
- Communications: PMBus/SMBus/I2C interface to host MCU; status flags and interrupt outputs
- Diagnostics: fault logging, data retention, watchdog and reset
- Low‑power operation with smart wakeup
- Automotive-grade: extended temperature range, RoHS compliant
- Package: BGCB (compact, high‑reliability integration)
Concise note: Designed to simplify multi‑cell BMS design by integrating monitoring, protection, and gauging with flexible communications for automotive and industrial applications.

Pin count: 32 pins (BGCB package).
Function: MAX17823BGCB/V+ is a high‑voltage automotive battery-management IC. It monitors cell voltages, pack current/temperature, provides protection features, and interfaces to a host controller (typically via SPI) with balancing and supervisory functions for a battery pack.

Manufacturer: Maxim Integrated Products (now part of Analog Devices, Inc.).
What kind of company: A fabless semiconductor company that designs and sells analog and mixed-signal integrated circuits.

Possible applications for MAX17823BGCB/V+ include:
- High-voltage Li-ion battery packs for electric vehicles (EV/HEV) and other e-mobility systems
- Stationary energy storage systems (ESS) for grid-tied or off-grid installations
- Industrial automation, robotics, and UPS/backup power systems
- Renewable-energy storage integrators (solar/wind) requiring multi-cell monitoring
- Any multi-cell Li-ion pack requiring monitoring, protection and, optionally, balancing
Note: used for cell monitoring, protection (OV/UV/OC), and balancing in high-voltage battery packs.

The MAX17823BGCB/V+ comes in a BGA (Ball Grid Array) package.