市电供电的LED驱动控制器A704（The LED driver controller A704）.docVIP

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市电供电的LED驱动控制器A704（The LED driver controller A704）.doc

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市电供电的LED驱动控制器A704（The LED driver controller A704）

市电供电的LED驱动控制器A704（The LED driver controller A704） This article is contributed by sdtaxyd PDF documents may have a poor browsing experience at the WAP end. It is recommended that you choose TXT, or download the source file to the native view. New devices should be used? The L D driver control unit of the market power supply is A7, 4 E 0 Divid A0, 7, 4 is a type of high canonical value of 1 De mA that is pushed out by AD tk. If you dont want to do the closed drive the maximum voltage V is 2 V 0. Effect, type, flow L D drive control device. The control system is used, and the terminal is suspended. An S current test terminal, 4C The base structure and the work of constant current source circuit The main points of the system are applicable to the electric current test in the international quasi-city electricity supply to the C S and the GN D terminals (5, 2, 5, A) R S for setting fixed constant current value; One DD loses C 5V The L D drive is a constant current source circuit. By the E The A0, 7, 4 constant current source circuit is CD in D/C Voltage power supply; The driving current is determined by the external power supply. MOS E, the displacement of the unmatched work rate, the same amount of the same number of FT. The number of components is small, and the P S surface is C Main parameter The base frame is added with current test and control system A 0 is limited to the number of parameters: the input of the voltage circuit to change the ratio of P 74 WM to the current Small, the maximum value of the whole L D drive circuit in the lamp V D is 3 V; The purpose of the constant current is to be the end of the constant current. In the head; Electric current (type value: 5u; low order A) a 2 ℃ maximum junction temperature for 1 ~ 8 o 0. Electricity o + 5 c, 5 ℃ its The diagram is shown in figure 2. In figure 2, the virtual wire frame is the bridge The working current (type 3 mA) has the opening pulse parameters: the input voltage V D circumference is 65, 3 V; ; D van. N