![]() ![]() ![]() EMITTER Collector current ICM: 6 A 1 2 3 Collector-base voltage V (BR)CBO: TIP41A : 60 V TIP41B : 80 V TIP41C : 100 V Operating and storage junction te.13. 1.5 AMPERE POWER TRANSISTOR 150 VOLTS 25 WATTS. LTD TO-220 Plastic-Encapsulate Transistors TO-220 TIP41A/41B/41C TRANSISTOR (NPN) 1. ![]() So I would conclude that it is the IRF640 that is the poor component and the IRF610 that is the good one. C2073 Datasheet : NPN silicon power transistor, C2073 PDF Download Mospec Semiconductor, C2073 Datasheet PDF, Pinouts, Data Sheet, Equivalent, Schematic, Cross reference, Obsolete, Circuits. The only thing I can think of is that the circuit is so piss poor it will not respond quickly enough to drive the LEDs on for such short a time. Find C2073 2 Transistors related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of C2073 2 Transistors information. Intriguing why the OP doesn’t spot this, but it is real and so the circuit used is crap. However, when you invert that signal like in the circuit here it has one clock cycle on and the rest of them off. 2SC4793 - C4793 230V 1A Silicon NPN Power Transistor. Price: Rs 18.95 16.00: Availability: 21&hairsp pcs In Stock : Quantity : Add to Cart. Fine in normal operation as you won’t be able to see such a small brightness change. C2073 Datasheet PDF : 1.5 AMPERE POWER TRANSISTOR 150 VOLTS 25 WATTS. 2SC2073 - C2073 NPN 1.5A 150V power transistor used for general purpose power amplifier applications. But this chip works in slightly an odd way in that when the LEDs are set to be on at full brightness it produces a PWM signal that is not fully on but one that has a duty cycle such that is one clock pulse short of fully on. This would not normally be a problem just that the numbers would be inverted driving it. There is an inversion between signal and light level. This is because when the TLC5940 is sinking current and thus an LED wired in the conventional way will be on, in that circuit it will be off. No, it needs to be a pull up because the TLC5940 is only a current sink and pulling it up to 12V is the right way to drive an external N-channel FET.īut the point the OP is missing is that the strip is not switching off fully, maybe he hasn’t noticed yet or tested it in a dark environment but the strip will not fully turn-off if wired like this. ![]()
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