Hall Effect Based Automotive Current Sensor LEM HAH1DR200-S with Excellent Linearity and Low Thermal Offset
HAH1DR 200-S Automotive Current Transducer
The HAH1DR family of open-loop current transducers utilizes Hall effect technology for the electronic measurement of DC, AC, or pulsed currents in high-power automotive applications. They provide galvanic separation between the primary and secondary circuits, offering various current measuring ranges within the same housing. Key advantages include excellent accuracy, very good linearity, low thermal offset and sensitivity drift, wide frequency bandwidth, and no insertion losses.
Product Attributes
- Brand: LEM
- Technology: Open Loop Hall Effect
- Material (Case): PBT GF 30
- Material (Magnetic Core): Iron silicon alloy
- Electrical Terminal Coating: Brass tin plated
- Connector Type: TYCO 1473672-1
Technical Specifications
| Parameter | Symbol | Unit | Specification | Conditions | Min | Typical | Max |
| Absolute Maximum Ratings (Not Operating) | |||||||
| Primary current peak | Pmax | A | 1) | 7 | |||
| Supply continuous over voltage | UC | V | - 0.5 | 1 | |||
| Reverse voltage | V | 2) | 1 min @ TA = 25 C | - 0.5 | |||
| Ambient storage temperature | TS | C | - 55 | 125 | |||
| Electrostatic discharge voltage | UESD | kV | JESD 22-A114-B (HBM) | 2 | |||
| Continuous output current | Iout | mA | - 10 | 10 | |||
| RMS voltage for AC insulation test, 50 Hz, 1 min | Ud | kV | 50 Hz, 1 min | 2 | |||
| Continuous output over voltage (Analog) | Vout | V | - 0.5 | UC + 0.5 | |||
| Insulation resistance | RIS | M | 500 V - ISO 16750-2 | 500 | |||
| Output Short circuit duration | tc | minutes | 2 | ||||
| Operating Characteristics in Nominal Range (IPN) | |||||||
| Primary current | IPn | A | 200 | ||||
| Supply voltage | UC | V | 4.75 | 5 | 5.25 | ||
| Ambient operating temperature | TA | C | Connector limited 105 C | - 40 | 125 | ||
| Sensitivity | G | mV/A | 3) | @ UC= 5 V | 10 | ||
| Current consumption | IC | mA | @ UC= 5 V, - 40 C < TA< 125 C | 15 | 20 | ||
| Load resistance | RL | K | 10 | ||||
| Capacitive loading | CL | nF | 1 | 100 | |||
| Output internal resistance | Rout | DC to 1 kHz | 10 | ||||
| Ratiometricity error | r | % | 0.5 | ||||
| Sensitivity error | G | % | @ TA= 25 C, @ I = IP | - 1 | 0.5 | 1 | |
| Electrical offset current | IOE | A | @ TA= 25 C, @ UC= 5 V | 0.6 | |||
| Magnetic offset current | IOM | A | @ TA = 25 C, @ UC= 5 V, after IP | 0.9 | |||
| Global offset current | IO | A | @ TA = 25 C | - 1.5 | 1.5 | ||
| Average temperature coefficient of VOE | TCIOEAV | mV/C | @ - 40 C < TA< 125 C | - 0.08 | 0.03 | 0.08 | |
| Average temperature coefficient of G | TCGAV | %/C | @ - 40 C < TA< 125 C | - 0.035 | 0.02 | 0.035 | |
| Linearity error | L | % | @ UC = 5 V, @ TA= 25 C, @ I= IP | - 1 | 1 | ||
| Step response time to 90 % | tr | s | @ di/dt = 100 A/s | 6 | 10 | ||
| Frequency bandwidth | BW | kHz | 4) | @ - 3 dB | 30 | ||
| Output clamping voltage minimum | VSZ | V | @ UC = 5 V, @ TA= 25 C | 0.1 | |||
| Output clamping voltage maximum | V | @ UC = 5 V, @ TA= 25 C | 4.9 | ||||
| Output voltage noise peak-peak | Vno p-p | mV | DC to 1 kHz | 22 | |||
Notes:
1) Busbar temperature must be below 150 C
2) Transducer not protected against reverse polarity
3) The output voltage Vout is fully ratiometric: The offset and sensitivity are dependent on the supply voltage UC relative to the following formula: Vout = (UC/5) (Vo + G IP )
4) Tested only with small signal only to avoid excessive heating of the magnetic core.
Automotive Applications
- Battery monitoring
- Starter Generators
- Inverters
- HEV application
- EV application
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