(Hong Kong)
Product Summary
The M51901P is a semiconductor integrated circuit consisting of a driver circuit capable of driving 12 LEDs in 23 modes. When a DC voltage is applied to the input pin the LED driving outputs are activated either 1 or 2 at a time to provide 23 LED drive modes in accordance with the applied voltage level. In addition, a blanking function is available when the reference voltage is made a low level. The M51901P consists of 12 differential amplifiers and the associated ladder circuit as well as a blanking circuit. The applications of the M51901P include 23-mode drivers for 12 LEDs, simplified A-D converters.
Parametrics
M54646A absolute maximum ratings: (1) Supply voltage range: 10.2V to 16.5V; (2) Rated supply voltage: 13.2V; (3) Reference voltage range: 5.0V to 7.5V; (4) Input voltage range: 0V to 9.2V.
Features
M54646A features: (1)12 LEDs may be driven in accordance with the level of a DC voltage applied to the input, using a buit-in A-D conversion capability; (2)23 operating modes are provided; (3)Built-in blanking function; (4)The reference voltage level may be freely selected.
Diagrams
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