UAA170

The UAA170 for driving 16 light emitting diodes. UAA170 provides a linear relation between control voltage and the driven LED. By using an appropriate  circuitry the brightness of the LEDs can be varied and the light passage between two adjacent LEDs can be set between "smooth" and "abrupt".

The following is about the absolute maximum ratings of UAA170: (1)supply voltage: 18V; (2)input voltage: 6V; (3)load current: 5mA; (4)junction temperature: 150; (5)storage temperature range: -40 to 125; (6)thermal resistance system-air: 90K/W.

The electrical characteristics of the UAA170 are: (1)current consumption: 2mA min, 4mA typ and 10mA max; (2)control input current: -2A min; (3)reference input current: -2A min; (3)voltage difference: 1.4V min and 6.0V max; (4)voltage difference for smooth light transition: 1.4V min; (5)voltage difference for abrupt light transition: 4.0V min; (6)reference input voltage: 1.4V min and 6.0V max; (7)output current for LEDs: 25mA typ.