High-speed inductive resolver - analog (on-chip calculation)
MLX90510 Melexis
The MLX90510 is a high-speed inductive resolver IC used for absolute rotary motion/position sensing in safety critical automotive applications. It provides analog (sin/cos) outputs.
Top features
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High accuracy: Maximum ±0.36° el up to 240000 e-rpm (electrical rpm)
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Immune to magnetic stray fields (ISO 11452-8)
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ISO 26262 ASIL C SEooC (Safety Element out of Context)
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High-speed inductive resolver operational up to 660000 e-rpm
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Differential sine and cosine analog outputs
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System propagation delay variation < ±120 ns
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Programmable linear transfer characteristic (16 points)
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5V operating supply voltage
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Overvoltage and reverse-polarity protection: -24V to +24V maximum
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Ambient Operating Temperature Range from -40°C to 160°C
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Through-Shaft, End-of-Shaft and Side-of-Shaft operation
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TSSOP-16 Package RoHS Compliant
Product description
The MLX90510 is a high-speed inductive resolver IC used for absolute rotary motion/position sensing in safety critical automotive applications. Its main specifications benefit e-machine types of applications directly, and minimize the ECU effort required to get best-in-class accuracy under extreme mechanical and electrical conditions.
The MLX90510 is designed to control an inductive transducer, process the captured analog sensor signal and provide differential Sine and Cosine outputs. The inductive sensor operation is based on the inductive coupling between a transmitting coil, the target and three receiver coils.
With its innovative architecture, the MLX90510 brings several advantages:
- The system propagation delay is trimmed to 0ns with a maximum of +/-120ns residual variations over the entire operating temperature range.
- Input offset compensation and zero output-angle position adjustment are performed within the IC, lowering the effort on the ECU.
- The 3-phase based coil design simplifies linearity optimization.
- Decoupling between the input and output enables unprecedented EMC performances. It also ensures stable output amplitudes independently from the airgap related input signal strength.
- The linearization feature, with up to 16 calibration points, deals with the non-linearities of challenging sensor modes like side-of-shaft.
The MLX90510 has been developed as a SEooC (Safety Element out of Context) according to ISO 26262 and supports safety related system implementations up to ASIL C.
For mass-production programming., the MLX90510 is compatible with the PTC-04 (DB-HALL06, v3 or higher)
Applications:
- High speed absolute rotary position sensor
- Motor position sensing (BLDC, PMSM, PMSR)
- Traction motor
- E-brake booster
- Electric Power Steering (EPS)
Features and benefits
-
High accuracy: Maximum ±0.36° el up to 240000 e-rpm (electrical rpm)
-
Immune to magnetic stray fields (ISO 11452-8)
-
ISO 26262 ASIL C SEooC (Safety Element out of Context)
-
High-speed inductive resolver operational up to 660000 e-rpm
-
Differential sine and cosine analog outputs
-
System propagation delay variation < ±120 ns
-
Programmable linear transfer characteristic (16 points)
-
5V operating supply voltage
-
Overvoltage and reverse-polarity protection: -24V to +24V maximum
-
Ambient Operating Temperature Range from -40°C to 160°C
-
Through-Shaft, End-of-Shaft and Side-of-Shaft operation
-
TSSOP-16 Package RoHS Compliant
Documents and tools
Application flyer(s)
Datasheet(s)
Product flyer(s)
White paper(s)
Tools
IC handling and assembly
Related tech talks
Videos
High-speed inductive sensor interface IC (MLX90510-MLX90517)
The MLX90510 & MLX90517 are high-speed inductive resolver ICs used for absolute rotary motion/position sensing in safety critical automotive applications. they provide analog (sin/cos) outputs with on-chip or off-chip calculations.
