Overview
The TLI4970-D025T5 is an accurate coreless magnetic current sensor. Thus, the output signal is highly linear and without hysteresis. However, a differential measurement principle allows effective stray field suppression. Due to the integrated primary conductor (current rail), there is no need for external calibration. Additionally, a separate interface pin (OCD) provides a fast output signal in case a current exceeds a pre-set threshold. A small leadless package (QFN-like) allows for standard SMD assembly.

FEATUREs
• AC & DC measurement range up to ±25 A
• Accurate over temperature range and lifetime max. 2.9% (0 h), max. 3.5% (over lifetime) of indicated value
• Low offset error (max. 25 mA at room temperature)
• High magnetic stray field suppression
• Fast over current detection with configurable threshold
• Galvanic isolation up to 2.5 kV max. rated isolation voltage (according to UL 1577)
• 16 bit digital SPI output (13 bit current value)
• Small 7 mm x 7 mm SMD package

Target Applications
The TLI4970-D025T5 is suitable for AC as well as DC current measurement applications:
• Current monitoring
• Chargers
• Photovoltaic & general purpose inverters
• Power supplies (SMPS)
• Electrical drive
• etc.