产品特点 FEATURES

1 Programmable high-speed current sensor with selectable analog ratiometric output

2 Programmable linear transfer characteristic and sensitivity (range:5 to150 mV/mT)

3 Wide measurement range of magnetic flux density:15 to450mT

4 Wideband performance: DC to250kHz (when noise filter is off)

5 Ultra-short response time:2µsec (without noise filter)

6 Single die VA package, RoHS compliant and lead-free (suitable for 260°C lead-free soldering, MSL1)

7 AEC-Q100 Automotive Qualified, ideal for automotive applications

8 Self-diagnostic functions: detects calibration data CRC error, under/over voltage conditions (with high impedance output mode on error)

9 Low supply current:9-14mA (typical)

10 Supports optional noise filter (reduces noise but increases response time)

使用场景 APPLICATIONS

1 Inverter systems in hybrid electric vehicles (HEV) and electric vehicles (EV)

2 BLDC (Brushless DC) motor current monitoring

3 AC/DC converter current measurement

4 Over-current detection circuits in various electronic systems

5 Automotive electronic systems requiring high reliability and fast response (due to AEC-Q100 qualification)

注意事项 PRECAUTIONS

1 Follow ESD control procedures when handling the sensor to prevent damage

2 Solder according to Melexis guidelines: lead-free soldering up to260°C (target), MSL1 moisture sensitivity level

3 Connect TEST/MUST pin to ground for optimal EMC performance

4 Operating conditions: supply voltage range4.5-5.5V, ambient temp range-40°C to150°C

5 The sensor is not suitable for high-reliability applications like medical life-support, avionics, or defense-related systems (per Melexis disclaimer)

6 Use Melexis Universal Programmer (PTC-04) with dedicated daughter board (PTC04-DB-HALL05) for programming

7 In case of self-diagnostic errors (e.g., CRC error, under-voltage), the output enters high impedance mode; use a pull-down resistor (6-100kΩ) to detect diagnostic low state

8 Avoid exceeding absolute maximum ratings (e.g., supply voltage >10V, magnetic flux density >±3T) as it may cause permanent damage

MLX91209LVA-CAA-005-SP-PDF数据手册-参考资料