UDN2936-120 Datasheet | Allegro MicroSystems

features internal mutation logic, PWM current control, and thermal shutdown protection. 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER The UDN2936W-120 is patible with single-ended digital or linear Hall effect sensors. The mutating logic is programmed for 120° electrical separation. The UDN2936W-120 can replace the original UDN2936W (60° electrical separation) by simply adding an inverter at the H2 input. Current control is acplished by sensing current through an external sense resistor and pulse-width modulating the source drivers. Voltage thresholds and hysteresis can be externally set by the user. If desired, internal threshold and hysteresis defaults (300 m V, 7.5 percent) can be used. The UDN2936W-120 also includes braking and direction control. Internal protection circuitry prevents crossover current when braking or changing direction. The UDN2936W-120 is also available for operation between -40°C and +85°C. To order, change the prefix from ‘UDN’ to ‘UDQ’. For maximum power-handling capability, the UDN2936W-120 is supplied in 12-pin single in-line power-tab package. An external heat sink may be required for high-current applications. The tab is at ground potential and needs no insulation. Data Sheet 29318.20B ABSOLUTE MAXIMUM RATINGS at TJ ≤ +150°C Supply Voltage, VBB - - - 45 V Output Current, IOUT (continuous) - - - . ±2.0 A (peak) - - - - . ±3.0 A Input Voltage Range, VIN . . . -0.3 V to 15 V Threshold Voltage, VTHS - - . . 15 V Package Power Dissipation, PD - - - . . . . See Graph Operating Temperature Range, TA - - - . -20°C to +85°C Storage Temperature Range, TS - - - . -55°C to +150°C Note: Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed the specified peak current and a junction temperature of...