MAX17823BGCB/V+

MAX17823BGCB/V+ is an automotive-grade battery-management IC from Maxim Integrated (now ADI) for high-voltage, multi-cell Li‑ion packs used in EVs, hybrids, and energy storage. It acts as the BMS brain, handling cell voltage and temperature monitoring, coulomb counting/gas gauging, cell balancing, and pack protection. It communicates with a host MCU via a serial digital interface and controls external protection circuitry (FETs) to enable safe shutoff on faults. The device provides diagnostics, fault logging, and safety features such as over/under voltage and overcurrent/short-circuit protection, plus fault isolation. The GCB/V+ suffix designates the package/revision and automotive-grade V+ variant, suitable for extended temperature and voltage ranges. For exact cell-count support, pinout, electrical specs, and programming details, refer to the latest datasheet and supplier notes.

Here are the core features of the MAX17823BGCB/V+ (high-level summary):
- Automotive-grade battery management IC for Li‑Ion packs; monitors multiple cell voltages, pack current, and temperature.
- Cell balancing: passive balancing with programmable thresholds/timing.
- Protection: overvoltage/undervoltage, overcurrent/short-circuit, overtemperature; fault latch with host alert.
- Fuel-gauge/SOC: coulomb counting with cell voltage monitoring for state-of-charge estimation.
- Gate-drive outputs: drives external MOSFETs for high-side/low-side protection (pack switching).
- Diagnostics: open/short-cell detection, fault flags, and diagnostic reporting to host MCU.
- Communication: SPI-compatible serial interface for configuration, status, and fault reporting.
- Reliability features: POR, watchdog, auto-retry, safe-state operation.
- Power/low quiescent operation: suitable for automotive use with robust ESD/EMI characteristics.
- Temperature and packaging: wide operating temp range; BGCB/V+ package variants available (automotive grade).
Note: For exact cell-count support, voltage/current specs, and interface nuances, please consult the MAX17823 datasheet.

Package: BGA (ball-grid array). MAX17823BGCB/V+ uses a BGA variant (BGCB); V+ indicates the RoHS/lead-free green version.

- Pin count: 80 pins (BGCB package, 80-ball BGA).
- Function: High-voltage battery-management IC for Li-ion packs; monitors cell voltages and temperatures, measures pack current, provides coulomb counting, drives cell balancing, and communicates with a host MCU via SPI/I2C (galvanically isolated interface) for BMS applications.

- Manufacturer: Maxim Integrated Products, Inc. (now part of Analog Devices, Inc.).
- Company type: A multinational semiconductor company specializing in analog, mixed-signal, and power-management integrated circuits.

Max17823BGCB/V+ is a multi‑cell Li‑ion battery monitor/protection IC used in:
- Automotive BMS for EV/HEV packs
- Stationary energy‑storage systems (ESS) and renewable‑energy storage
- Telecom backup power and UPS systems
- Industrial equipment with large battery packs requiring cell monitoring and safety protection

Direct cross-reference: there isn’t an exact drop-in equivalent to MAX17823BGCB/V+ (a high-voltage, multi‑cell BMS controller). Closest equivalents from other vendors are TI’s BQ76920/30/40 family and Renesas ISL94208/ISL94203 (multi‑cell BMS monitors). Exact electrical match may require re-design due to different pinouts, communication protocols, and cell-count support.