UH266

DESCRIPTION 

The UTC UH266 is a one-chip composed of Hall sensor and 

output coil drivers, applied to two-phase brush-less DC motor. 

The device includes an on-chip Hall plate for magnetic sensing, a 

amplifier for Hall voltage, and a Schmitt trigger to provide 

switching hysteresis, and complementary darlington 

open-collector drivers for sinking large current loads. An internal 

bandgap regulator is used to provide temperature compensated 

supply voltage and allows a wide operating range. 

If B>Bop, DO turn on (low) and DOB turn off (high). The 

outputs state is latched prior to reach release point (Brp). if 

B<Brp, DO turn off and DOB turn on. UTC UH266 is rated for 

operation over temperature range from -20°C to 85°C and voltage 

range from 4V to 28V. 

FEATURES 

* Operating voltage: 4V~28V 

* Output current: 400mA(Continuous, 25°C) 

* Output protection Zener breakdown Vz=62V(Typ) 

* Reverse power protection 

规格书UH266