UGN3177

The UGN3177 is a temperature-stable and stress-resistant Hall-effect latch sensor from N-A, suitable for electronic commutation in brushless DC motors. It integrates a voltage regulator, Hall voltage generator, temperature compensation circuit, amplifier, and Schmitt trigger with an open-collector output on a single silicon chip.

This device operates with supply voltages ranging from 4.5V to 18V. The output can sink up to 10 mA, allowing direct use with bipolar or MOS logic circuits when a suitable pull-up is applied. The UGN3177 offers symmetrical response, reverse battery protection, and can be activated by small, commercially available permanent magnets.

Available in a surface-mount SOT-89 package, the UGN3177 provides solid-state reliability, superior temperature stability, and resistance to physical stress. Its small size makes it suitable for various applications where space is a constraint.

Key electrical characteristics include an output saturation voltage of up to 300 mV at 10 mA, an output leakage current of 5 µA maximum, and a supply current of 10 mA maximum. Output rise and fall times are typically 0.04 µs and 0.18 µs, respectively, under specified test conditions.