ROHM Surface Mount Hall Effect Sensor, UCSP, 4-Pin

The BU52078GWZ is omnipolar Hall IC incorporating a polarity determination circuit that enables separate operation (output) of both the South and North poles. This Hall IC product can be in tablets, smart phones, and other applications in order to detect open and close of the cover. And this Hall IC product can be in digital video cameras and other applications involving display panels in order to detect the front/back location or determine the rotational direction of the panel.

Omnipolar Detection(Polarity Detection for both S and N Poles with Separate, Dual Outputs)
Micro Power Operation(Small Current Using Intermittent Operation Method)
Ultra-compact CSP4 Package (UCSP35L1)
Polarity Judgement and Separate Output on both Poles(OUT1=S-pole Output, OUT2=N-pole Output)