TCA955

The TCA955 is suited for the speed control of DC motors. Outstanding features are its high control accuracy, its large supply voltage range, and the possible current saving. The features of TCA955 are: (1)high control accuracy; (2)large supply voltage range.

The following is about the absolute maximum ratings of TCA955: (1)supply voltage: 16V max; (2)output current pin 16: 200mA; (3)output current pin 12: 15mA; (4)power dissipation, LED output: 150mW; (5)junction temperature: 150; (6)storage temperature range: -55 to 125; (7)thermal resistance system-air: 85K/W.

The electrical characteristics of the TCA955 are: (1)stabilized voltage: 2.75V min and 3.30V max; (2)input threshold to ground: 0.46*V11 min and 0.51*V11 max; (3)hysteresis of input threshold: 0.03*V11 max; (4)offset voltage: 11mV typical and 20mV max; (5)input current: 1A max; (6)output transistor saturation voltage IQ=50mA: 0.84V typical and 1.00V max; (7)output transistor cutoff current: 30A max.