The MC33772 datasheet provides specifications, pin definitions, and key parameters for NXP's SMARTMOS battery cell controller IC.
The MC33772 is a SMARTMOS lithium‑ion battery cell controller IC designed for automotive and industrial applications such as hybrid/electric vehicles, energy‑storage systems, and UPS. It measures cell voltages, current, and temperature, performs Coulomb counting, and communicates digitally via SPI or isolated differential links.
The document lists the device’s operating ranges, pinout, package options, and detailed electrical characteristics, enabling system designers to integrate the controller into multi‑cell battery packs and to implement cell balancing, fault detection, and sleep‑mode power management.
| Operating voltage (VPWR) | 5.0 V – 30 V (40 V transient) |
|---|---|
| Supported cell count | 3 to 6 cells (compatible up to 14 cells with MC33771) |
| Communication interfaces | Isolated 2.0 Mbps differential or 4.0 Mbps SPI |
| Package | 48‑pin LQFP‑EP |
| On‑board cell‑balancing current | 300 mA passive |
The device operates from 5.0 V up to 30 V, with a 40 V transient rating.
It can manage 3 to 6 cells, and is compatible with the MC33771 for up to 14 cells.
The IC supports isolated 2.0 Mbps differential communication and a 4.0 Mbps SPI interface.
The part is offered in a 48‑pin LQFP‑EP package.