| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
5,000 pcs
|
5000 pcs | On Request | 1 | On Request | On Request | 20+ | On Request | On Request | |
|
4,292 pcs
|
4292 pcs | On Request | 1 | On Request | On Request | 20+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Battery Chemistry | |
| Fault Protection | |
| Function | |
| Interface | |
| Mounting Type | |
| Number of Cells | |
| Operating Temperature | |
| Operating Voltage | |
| Supplier Device Package | |
| Supplier Package |
The MC33771BSA1AE from NXP Semiconductors is a SMARTMOS lithium-ion battery cell controller IC. It is engineered for demanding applications such as hybrid electric (HEV) and electric vehicles (EV), as well as industrial energy storage systems (ESS) and uninterruptible power supply (UPS) systems.
This device performs critical functions including ADC conversions of differential cell voltages and current, battery coulomb counting, and battery temperature measurements. The collected data is digitally transmitted to a microcontroller via the Serial Peripheral Interface (SPI) for processing. Key features include operation from 9.6 V to 63 V with a 75 V transient rating, management of 7 to 14 cells, and a maximum total voltage measurement error of 0.8 mV.
Designed for reliability and safety, the MC33771BSA1AE supports ISO 26262 up to ASIL D safety systems. It offers features like automatic over/undervoltage and temperature detection, onboard passive cell balancing with diagnostics, and hot-plug capability. The IC is housed in a 64-LQFP package suitable for surface mounting.
Its versatile interface options include isolated 2.0 Mbps differential communication or 4.0 Mbps SPI, allowing for flexible system integration. The device also provides seven GPIO/temperature sensor inputs and a 5.0 V at 5.0 mA reference supply output, enhancing its utility in complex battery management systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The device operates from 9.6V to 63V, with a transient capability up to 75V.
It can manage 7 to 14 series-connected Li-Ion cells.
The maximum total voltage measurement error is 0.8mV.
The IC supports isolated 2.0 Mbps differential communication and 4.0 Mbps SPI.
Onboard 300 mA passive cell balancing with diagnostics is provided.
The device operates from -40°C to 105°C ambient.
The device is packaged in a 64-LQFP Exposed Pad (10x10mm) for surface mount assembly.