Mini2440 Reset System Circuit Diagram using MAX811

February 26th, 2010

The herein schematic shows Mini2440 Reset System Circuit Diagram using MAX811. MAX811 used to monitor power supplies in microprocessor (uP) and digital systems since it provides a debounced manual reset input. The following Mini2440 use a microprocessor supervisory circuit MAX811 to reset its CPU.

max811 datasheet and mini2440 reset circuit

You may download the MAX811 datasheet here.

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BU406 Silicon Epitaxial-Base Planar NPN Transistor Datasheet

February 25th, 2010

The BU406 transistor is a Silicon Epitaxial-Base Planar NPN transistor. These devices are used for horizontal deflection Pb free plating product number BU406L TO220F output stages of large screens MTV receivers with 110 C CRT.

In the datasheet you will find absolute maximum rating for Collector Base Voltage (Vcbo): 400V, Emitter Base Voltage (Vebo): 6V, Collector Current (Ic): 7A, Base Current (Ib): 4A. Electrical Charactheristics : 70-240 for the DC Current Gain, 1.2V Base Emitter Saturation Voltage, 1V Collector Emitter Saturation Voltage, 0.75us Turn-off Time and 10 MHz Transition Frequency.

BU406 Silicon Epitaxial-Base Planar NPN Transistor Datasheet continued »

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4N26 Emitting Diode Pinout Diagram and Schematic

February 24th, 2010

4N26 devices is an emitting diode optically coupled to a monolithic silicon phototransistor detector, it may be applied 4n26 datasheet and pinout diagram in applications such general purpose switching circuits, I/O interfacing, and solid state relays. The following picture shown the 4N26 Emitting Diode Pinout Diagram.

And here is 4N26 PINOUT Description:
1 – LED Anode
2 – LED Cathode
3 – N.C
4 – Emitter
5 – Collector
6 – Base

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