MC33777 | Battery Junction Box Monitor IC | NXP Semiconductors

Battery Junction Box Monitor IC

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Block Diagram

MC33777

MC33777A Block Diagram

Features

Current Measurement

  • Four current measurement channels (supporting two ASIL D current measurements)
  • Per channel, one precise measurement branch and one fast measurement branch
  • Shunt temperature drift compensation based on external temperature sensor
  • Overcurrent detection (threshold, di/dt calculation, melting fuse emulation)

Voltage and General-Purpose Measurements

  • 16 analog inputs supporting redundant measurements

Decision Engine Event Manager

  • Configurable decision engine to assess measurement inputs and trigger reactions
  • Set of event signals (ex: high di/dt, overcurrent, overvoltage, overtemperature...)
  • Triggering reactions (ex: Pyrotechnic Switch controller, MCU wake-up, GPIOs...)

Pyrotechnic Switch Controller

  • Two independent controllers including driver stage
  • AK-LV 16 (2012-07) compliant
  • Triggering by the decision engine event manager without MCU processing
  • Extensive set of diagnostics (diagnostic current, capacitor measurement, ESR measurement...)

Communication

  • SPI interface and I²C interface
  • MCU interface supporting SPI or TPL3

Buy/Parametrics

8 results

Include 0 NRND

Order

CAD Model

Status

Budgetary Price excluding tax

Package Type

Package Termination Count

Ambient Operating Temperature (Min to Max) (℃)

Pyrotechnic Switch Controller (PSC)

Number of Independent Current Measurement Channels

Overcurrent Detection Mechanisms

Shunt Temperature Compensation

Safety Level

GPIO

Isolated Daisy Chain Communication (TPL)

Active

1K @ US$4.45

HLQFP64

64

-40 to 125

2

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

no

Active

1K @ US$4.45

HLQFP64

64

-40 to 125

2

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

yes

Active

1K @ US$6.47

HLQFP64

64

-40 to 125

2

4

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

no

Active

1K @ US$6.47

HLQFP64

64

-40 to 125

2

4

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

yes

Active

1K @ US$5.24

HLQFP64

64

-40 to 125

1

2

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

no

Active

1K @ US$5.24

HLQFP64

64

-40 to 125

1

2

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

yes

Active

1K @ US$5.82

HLQFP64

64

-40 to 125

2

2

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

no

Active

1K @ US$5.82

HLQFP64

64

-40 to 125

2

2

Gradient (di/dt), Melting Fuse Emulation, Threshold

Integrated

up to ASIL D

16

yes

Documentation

Quick reference to our documentation types.

1 document

Design Files

Hardware

Quick reference to our board types.

2 hardware offerings

Software

Quick reference to our software types.

2 software files

  • Debugging and Visualization Tools

    BMS Tools - ScriptGUI

  • Debugging and Visualization Tools

    BMS Tools - EvalGUI

Note: For better experience, software downloads are recommended on desktop.

Support

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