Product Summary

The M5450B7 is a LED display driver. It is a monolithic MOS integrated circuit produced with an N-channel silicon gate technology. It is available in 40-pin dual in-line plastic packages. A single pin controls the LED display brightness by setting a reference current through a variable resistor connected to VDD or to a separate supply of 13.2V maximum. The applications of the M5450B7 include: (1)microprocessor displays; (2)industrial control indicator; (3)relay driver; (4)instrumentation readouts.

Parametrics

M5450B7 absolute maximum ratings: (1)VDD Supply Voltage: – 0.3 to 15 V; (2)VI Input Voltage: – 0.3 to 15 V; (3)VO(off) Off State Output Voltage: 15 V; (4)IO Output Sink Current: 40 mA; (5)PTOT Total Package Power Dissipation at 25℃: 1 W; Total Package Power Dissipation at 85℃: 560 mW; (6)Tj Junction Temperature: 150 ℃; (7)TOP Operating Temperature Range: – 25 to 85 ℃; (8)TSTG Storage Temperature Range: – 65 to 150 ℃.

Features

M5450B7 features: (1)m5450 34 outputs/15ma sink; (2)current generator outputs (no external resistors required); (3)continuous brightness control; (4)serial data input; (5)enable (on m5450); (6)wide supply voltage operation; (7)ttl compatibility.

Diagrams

M5450B7 block diagram

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