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MC33771BSA1AER2 The NXP Semiconductors MC33771BSA1AER2 is a battery cell controller IC designed for Lithium-Ion battery applications. It manages 7 to 14 cells and features an SPI interface.
Mfr Part #:

MC33771BSA1AER2

Available from 1 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The NXP Semiconductors MC33771BSA1AER2 is a battery cell controller IC designed for Lithium-Ion battery applications. It manages 7 to 14 cells and features an SPI interface.
✓ Total Stock: 1,500 pcs
$ Price Range: $0.75

MC33771BSA1AER2 Available from 1 distributor

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✓ Non-Authorised
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1,500 pcs
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MC33771BSA1AER2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Function
Interface
Lead Style
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
Supplier Package
Tape & Reel
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MC33771BSA1AER2 Description

Short technical summary and product information.

The MC33771BSA1AER2 from NXP Semiconductors is a SMARTMOS lithium-ion battery cell controller IC. It is designed for automotive applications like hybrid electric (HEV) and electric vehicles (EV), as well as industrial uses such as energy storage systems (ESS) and uninterruptible power supply (UPS) systems.

 

This device performs ADC conversions of differential cell voltages and current, coulomb counting, and temperature measurements. Data is transmitted digitally via SPI or Transformer Isolation (TPL) to a microcontroller. Key features include operation from 9.6 V to 63 V (75 V transient), management of 7 to 14 cells, and a maximum total voltage measurement error of 0.8 mV. It supports isolated 2.0 Mbps differential communication or 4.0 Mbps SPI.

 

The MC33771BSA1AER2 offers automatic over/undervoltage and temperature detection, integrated sleep mode monitoring, and onboard 300 mA passive cell balancing with diagnostics. It is designed to support ISO 26262 up to ASIL D safety systems and is qualified in compliance with AEC-Q100.

 

The IC is available in a 64-LQFP Exposed Pad package, suitable for surface mounting. It operates within a temperature range of -40°C to 105°C (TA).

MC33771BSA1AER2 Quick Information

Product Type: Battery Management IC
Canonical Name: MC33771B Battery Cell Controller IC
Subcategory: Battery Management

MC33771BSA1AER2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead-Free

MC33771BSA1AER2 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

MC33771BSA1AER2 Features

  • Manages 7 to 14 Lithium-Ion cells.
  • Supports 4.0 Mbps SPI communication.
  • Operates from 9.6 V to 63 V.
  • Designed for ISO 26262 up to ASIL D.
  • Qualified to AEC-Q100 standards.

MC33771BSA1AER2 Applications

  • Ideal for HEV and EV battery systems.
  • Suitable for industrial ESS applications.
  • Used in UPS power systems.
  • Supports automotive safety systems.

MC33771BSA1AER2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MC33771BSA1AER2?

The operating voltage range is 9.6 V to 63 V, with a transient rating of 75 V.

How many battery cells can the MC33771BSA1AER2 manage?

It can manage between 7 and 14 cells.

What is the communication interface used by this IC?

The device supports SPI communication at up to 4.0 Mbps.

What is the operating temperature range?

The operating temperature range is -40°C to 105°C (TA).

What package type is the MC33771BSA1AER2 supplied in?

It is supplied in a 64-LQFP Exposed Pad package for surface mounting.

Does this IC support automotive safety standards?

Yes, it is designed to support ISO 26262 up to ASIL D safety systems.

Is the MC33771BSA1AER2 qualified for automotive applications?

Yes, it is qualified in compliance with AEC-Q100.

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