IZ1517

w w w m o c IC WITH .PROGRAMMABLE MODE OF LED CONTROL U 4 Functional description t CMOS IC of light emitting diodes control with opportunity of selection of LED IZ1517 – digital e e single button start mode, automated turn-off function. It has embedded RCoperating mode, h oscillator with typical 100 kHz frequency, inside current-limiting resistors 75 Ohm. Recommended Scurrent on LED pins – 20mA. LEDs operate with duty j. Duration of turn-off delay – 8 operating a t Possibility of modification of mode, rate, duty and duration of operation during fabrication seconds. a Dlayer «metal» is envisaged. Design features .of Functions Operating mode – random or sequential Selection of on/off mode Duty ratio - 1 / 4 Duration of switch-off delay – 8 seconds Control of five light emitting diodes SEL1 not connected VSS not connected VSS SEL2 not connected not connected VСС VСС Features CMOS technology Low power consumption Operation from 3V power element Embedded RC-oscillator «Open drain» output IZ1517 Operating mode Operating mode Random, ON_OFF Random, single start ON_OFF OSCI RC-oscillator ON_OFF SEL1 SEL2 w w Control circuits w .D t a OSCO S a Block diagram e h sequential, ON_OFF sequential, single start ON_OFF t e U 4 .c m o Scaler randomnumber generator LED1 Output driver LED2 LED3 LED4 LED5 T1 IC is fabricated in unpacked version. Chip size is 1,6 x 0,95 mm. Contact pad size is 100 x 100 µm, their quantity – 13 pcs. Chip substrate is connected to VDD ...