HBCT

Automotive current sensor for battery management systems

HBCT - Automotive current sensor

The HBCT family provides to an engine control unit (ECU) the actual value of current flowing in and out of the battery and the ambient temperature by a NTC thermistor. The current measurement is performed with a full galvanic separation between the primary circuit (high power) and the secondary circuit (electronic circuit).

The HBCT 250-V proposed a battery clamp mounting and the transducer is linked to the ECU with the wiring harness using a waterproof connector.

HBCT current sensors are relying on the hall effect technology. They are designed for automotive applications.

HBCT – Features and benefits

Main characteristics

Open Loop transducer using the Hall effect
Unipolar +5 V DC power supply
Primary current measuring range up to −250 A / +100 A
Maximum RMS primary admissible current: defined by battery pole to have T < +150 °C
Operating temperature range: −30 °C < T < +90 °C
Output voltage: full ratio-metric (in sensitivity and offset)
Ferrite material magnetic core allowing high frequency primary current ripple with low self-heating.

Benefits

Excellent accuracy
Very good linearity
Very low thermal offset drift
Very low thermal sensitivity drift
High frequency bandwidth
Non insertion losses
Very fast delay time

Typical applications

HBCT current sensors are designed for automotive applications, especially for battery management system.

HBCT – Download & Technical Characteristic

Product	Document	Primary nominal RMS voltage	Supply Voltage range	Op. Temperature
HBCT 250-V	Datasheet 3D	-250 A, 100 A	5 to 5	-30 to 90 °C

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