Product Summary

The M5451B7 is a led display driver. The M5451B7 is a monolithic MOS integrated circuit produced with an N-channel silicon gate technology. The device 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 M5451B7 include microprocessor displays, industrial control indicator, relay driver, instrumentation readouts.

Parametrics

M5451B7 absolute maximum ratings: (1)Supply Voltage, VDD: -0.3 to 15 V; (2)Input Voltage, VI: -0.3 to 15 V; (3)Off State Output Voltage, VO(off): 15 V; (4)Output Sink Current, IO: 40 mA; (5)Total Package Power Dissipation at 25℃, PTOT: 1 W; (6)Total Package Power Dissipation at 85℃, PTOT: 560 mW; (7)Junction Temperature, Tj: 150℃; (8)Operating Temperature Range, TOP: -25 to 85℃; (9)Storage Temperature Range, TSTG: -65 to 150℃.

Features

M5451B7 features: (1)M5450 34 outputs/15ma sink; (2)M5451 35 outputs/15ma sink; (3)current generator outputs (no external resistors required); (4)continuous brightness control; (5)serial data input; (6)enable (on m5450); (7)wide supply voltage operation; (8)ttl compatibility.

Diagrams

M5451B7 block diagram

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