Infineon Technologies XENSIV™ TLE4977 Hall Current Sensor
Infineon Technologies XENSIV™ TLE4977 Current Sensor uses a hybrid Hall+coil architecture for bidirectional AC/DC current sensing. This current sensor is developed according to ISO 26262 up to ASIL B and offers 1MHz (minimum) bandwidth and high accuracy for automotive and industrial designs. The current sensor enables accurate and highly linear measurement of currents with a full-scale current up to ±81A. This current sensor provides a fast and accurate solution for measuring high-frequency currents in DC/DC converters and other switch-mode power supply applications. Typical applications include DC-DC Converters, On-Board Charger (OBC), drives, PV inverters (solar), smart circuit breakers, and telecommunications.
Features
- 38mARMS over full bandwidth extremely low noise
- High bandwidth provides fast response time and low phase delay
- Sensitivity error of <0.85% over the full temperature range
- Differential sensor principle ensures superior magnetic stray field suppression
- Pre-calibrated current sensor with Integrated current rail (typical insertion resistance of 550µΩ)
- 90ARMS high continuous current capability
- Single-ended mode output with fixed sensitivity
- Fast Over Current Detection (OCD) with 100ns response time
- Digital Control and Diagnostic Interface (DCDI) enables complete sensor customization to users' needs
- Suitable for basic and reinforced galvanic isolation applications
- DSO type 300 mil wide-body package with large creepage distance (> 8mm)
- 8mm x 8mm 16-pin SMD package
Applications
- DC-DC Converters
- On-Board Charger (OBC)
- Drives
- PV inverters (solar)
- Smart circuit breakers
- Telecommunication
- Server Power Supply Units (PSUs)
- General-purpose motor drive
- Photovoltaic
Block Diagram
Additional Resources
Published: 2026-10-13
| Updated: 2026-10-13