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Specifications
Mfr. Part #:
HAH1DR 900-S
Key Attributes
Model Number:
HAH1DR 900-S
Product Description
Product Overview
The LEM HAH1DR 900-S is an open-loop Hall effect current transducer designed for high-power automotive applications. It provides galvanic isolation between the primary and secondary circuits, enabling the electronic measurement of DC, AC, or pulsed currents. With a compact design and a choice of current measuring ranges up to 900 A, this transducer offers excellent accuracy, linearity, and low thermal drift. Its advantages include a wide frequency bandwidth and no insertion losses, making it ideal for battery monitoring, starter generators, inverters, and HEV/EV applications.
Product Attributes
- Brand: LEM
- Model: HAH1DR 900-S
- Principle: Open Loop Hall Effect
- Power Supply: Unipolar +5 V DC
- Primary Current Measuring Range: 200 A up to 900 A
- Operating Temperature Range: -40C to +125C
- Output Voltage: Ratiometric
- Material (Case): PBT GF 30
- Material (Magnetic Core): Iron silicon alloy
- Material (Pins): Brass tin plated
- Weight: 48 g
Technical Specifications
| Parameter | Symbol | Unit | Specification | Conditions |
| Electrical Data | ||||
| Primary current | IP | A | -900 to 900 | |
| Calibration current | ICAL | A | -500 to 500 | @ TA = 25C |
| Supply voltage | VC | V | 4.75 to 5.25 | |
| Output voltage (Analog) | VOUT | V | VOUT = (VC/5) X (2.5 + G X IP) | @ VC = 5 V |
| Sensitivity | G | mV/A | 2.22 | @ VC = 5 V |
| Current consumption | IC | mA | 15 to 20 | @ VC = 5 V |
| Load resistance | RL | K | > 10 | |
| Output internal resistance | ROUT | 10 | DC to 1 kHz | |
| Capacitive loading | CL | nF | < 100 | |
| Ambient operating temperature | TA | C | -40 to 125 | |
| Performance Data | ||||
| Sensitivity error | G | % | -1.0 to 1.0 | @ TA = 25C, @ I = ICAL |
| Electrical offset current | IOE | A | 2.5 | @ TA = 25C, @ VC = 5 V |
| Magnetic offset current | IOM | 1.2 | @ TA = 25C, @ VC = 5 V, after IP | |
| Global offset current | IO | -4.0 to 4.0 | @ TA = 25C | |
| Average temperature coefficient of VOE | TCVOE AV | mV/C | -0.074 0.03 | @ -40C < T < 125C |
| Average temperature coefficient of G | TCG AV | %/C | -0.035 0.02 | @ -40C < T < 125C |
| Linearity error (% of full scale) | L | % | -0.5 to 0.5 | @ ICAL |
| Response time to 90% of IPN step | tr | s | 5 to 8 | @ di/dt = 100 A/s |
| Frequency bandwidth | BW | kHz | 30 | @ -3 dB |
| Output clamping voltage min | VSZ min | V | 0.1 | @ VC = 5 V, TA = 25C |
| Output clamping voltage max | VSZ max | V | 4.9 | @ VC = 5 V, TA = 25C |
| Output voltage noise peak-peak | VNO pp | mV | 10 | DC to 1MHz |
| Absolute Maximum Ratings | ||||
| Max primary current peak | IPmax | A | 900 | 1) |
| Supply continuous over voltage | VC | V | 7 | |
| Reverse voltage | V | -0.5 | 2) | |
| Output over voltage (continuous) | VOUT | V | -0.5 to VC + 0.5 | |
| Continuous output current | IOUT | mA | -10 to 10 | |
| Output short-circuit duration | Tc | min | 2 | |
| Rms voltage for AC isolation test | Vd | kV | 2 | 50 Hz, 1 min |
| Isolation resistance | RIS | M | 500 | 500 V - ISO 16750-2 |
| Electrostatic discharge voltage | VESD | kV | 2 | JESD22-A114-B |
| Ambient storage temperature | TS | C | -55 to 125 | |
2411271943_LEM-HAH1DR-900-S_C454757.pdf
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