MLX91230 Smart IVT Sensor IC Datasheet
■The MLX91230 is the first smart Hall-based current sensor and is part of Melexis Gen3 portfolio. With a measurement capability of three physical quantities:
▲Current, Voltage and Temperature, Overcurrent detection alongside a dedicated 32 KB Flash memory on a single IC, this ASIL-compliant chip is ideal for safety applications. With its diagnostics, the MLX91230 is removing an important part of the burden from the integrator in developing all the safety mechanisms. The MLX91230 comes with 0.5% accuracy over temperature (-40°C to 125°C) for a 1% lifetime drift all-in, hence boosting the accuracy of Hall-effect DC current sensing. The IC’s MCU enables automatic gain control to cover higher dynamic ranges, and its on-board flash memory supports custom software, extensive compensation of system imperfections and low power modes. Supplied with a regulated 5V or directly connected to the 12V battery, the MLX91230 outputs measurements and diagnostics either on LIN bus or via UART.
●Features and Benefits
■IVT battery measurements:
▲Hall based current sensor
▲Voltage measurement
■Internal dividers for 12V or 24V/48V batteries
■External divider required for HV batteries
▲Internal (PTAT) temperature sensor
■16-bit MCU with 32 KB Flash, 128 B Flash CS,20 KB ROM, 2 KB RAM and 512 B EEPROM Memory
■LIN/UART communication interfaces
▲LIN Physical Layer compliant to ISO17987-4 and SAE J2602
▲UART as CAN MCU bridge
▲Wake-up on LIN and UART or on internal timer
■Overcurrent detection functionality (<500μs)
■Magnetic range of 512mT
■Possible Automatic Gain Control (AGC) for higher dynamic range
■Low level SW libraries provided by Melexis
■User programmable transfer characteristic
■Supply voltage: 4.5 to 18V (12V battery supply capability)
■Low current consumption (<21mA), programmable duty cycled sleep mode (RAM content maintained at <100μA)
■Ambient temperature from -40°C to 125°C
■ASIL compliant SEooC (Safety Element out of Context) according to ISO26262
■AEC-Q100 Grade 1 automotive qualified
■RoHS compliant package SOIC8 (DC)
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MLX91230 、 MLX91230KDC – BBA – 000 – RE 、 MLX91230KDC – BBA – 100 – RE 、 MLX91230KDC-BBA-100-RE 、 MLX91230KDC-BBA-000-RE |
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Smart IVT Sensor IC 、 first smart Hall-based current sensor 、 ASIL-compliant IC |
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[ Battery Management System ][ Primary current measurement ][ Redundant current measurement ][ Diagnosable Overcurrent Detection ][ SoC ][ SoH ][ SoF ][ Smart Battery Disconnect Unit ][ Junction Box ][ Power Relay Assembly ][ Smart Pyrofuses ][ Smart HV relays ][ contactors ][ Zone controller ] |
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Datasheet |
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Please see the document for details |
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SOIC8 |
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English Chinese Chinese and English Japanese |
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SEPT 12, 2023 |
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REVISION 1.0 |
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1.7 MB |
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