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MC33771BTA1AE The MC33771BTA1AE is a SMARTMOS lithium-ion battery cell controller IC from NXP Semiconductors. It is designed for automotive and industrial applications, managing 7 to 14 cells.
Mfr Part #:

MC33771BTA1AE

Available from 2 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The MC33771BTA1AE is a SMARTMOS lithium-ion battery cell controller IC from NXP Semiconductors. It is designed for automotive and industrial applications, managing 7 to 14 cells.
✓ Total Stock: 4,849 pcs
$ Price Range: $0.75

MC33771BTA1AE Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
4,349 pcs
On Request
4349 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
500 pcs
On Request
500 pcs On Request 1 On Request On Request 21+ On Request On Request
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MC33771BTA1AE Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
Operating Voltage
SVHC Present
Supplier Device Package
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MC33771BTA1AE Description

Short technical summary and product information.

The NXP Semiconductors MC33771BTA1AE is a SMARTMOS lithium-ion battery cell controller IC suitable 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 for 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 isolated communication at 2.0 Mbps (differential) or 4.0 Mbps (SPI). It offers a low total voltage measurement error of 0.8 mV maximum. The IC includes seven GPIO/temperature sensor inputs, a 5.0 V reference supply output, and onboard 300 mA passive cell balancing with diagnostics. It supports hot-plugging and detects internal and external faults like open lines and shorts.

 

The MC33771BTA1AE is supplied in a 64-LQFP Exposed Pad package, designed for surface mounting. It operates within a temperature range of -40°C to 105°C (TA). The device is designed to support ISO 26262 up to ASIL D safety systems and is qualified in compliance with AEC-Q100.

MC33771BTA1AE Quick Information

Product Type: Battery Cell Controller IC
Canonical Name: MC33771BTA1AE Battery Cell Controller IC
Subcategory: Battery Management

MC33771BTA1AE Compliance

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

MC33771BTA1AE Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

MC33771BTA1AE Features

  • Manages 7 to 14 lithium-ion cells.
  • High accuracy voltage measurement.
  • Supports SPI communication up to 4.0 Mbps.
  • Includes fault protection and diagnostics.
  • Designed for automotive and industrial use.

MC33771BTA1AE Applications

  • Ideal for HEV and EV battery systems.
  • Suitable for energy storage systems.
  • Used in uninterruptible power supplies.
  • Supports automotive safety systems.

MC33771BTA1AE FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MC33771BTA1AE?

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

How many battery cells can the MC33771BTA1AE manage?

This device can manage between 7 and 14 battery cells.

What is the maximum voltage measurement error?

The maximum total voltage measurement error is 0.8 mV.

What communication interfaces does the MC33771BTA1AE support?

It supports isolated differential communication at 2.0 Mbps and SPI communication at 4.0 Mbps.

What is the operating temperature range?

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

What type of package is the MC33771BTA1AE supplied in?

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

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