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TS19378CSRLG Folha de dados(PDF) 4 Page - Taiwan Semiconductor Company, Ltd |
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TS19378CSRLG Folha de dados(HTML) 4 Page - Taiwan Semiconductor Company, Ltd |
4 / 7 page TS19378 Taiwan Semiconductor Document Number: DS_P0000199 4 Version: B15 TYPICAL APPLICATION CIRCUIT AC Input Application Circuit ILED R5 C1 L1 350mA 0.570Ω 70mW 100μF 33μH 750mA 0.266Ω 150mW 220μF 1000mA 0.200Ω 200mW 330μF APPLICATION INFORMATION PWM Control The TS19378 consists of DC/DC converters that employ a pulse-width modulation (PWM) system. In converters of the TS19378, the pulse width varies in a range from 0 to 100%, according to the load current. The ripple voltage produced by the switching can easily be removed through a filter because the switching frequency remains constant. Therefore, these converters provide a low-ripple power over broad ranges of input voltage and load current Setting ILED Current Application circuit item shows the basic application circuit with TS19378 adjustable output version. The external resistor sets the LED output current according to the following formula: ILED=(0.25V/R5), VFB=0.2V Resistor select for LED output current setting ILED R2 350mA 0.57Ω 70mW 750mA 0.266Ω 150mW 1000mA 0.2Ω 200mW Current Limit The current limit threshold is setting by the internal circuit. Compensation In all LED driver applications. Connecting a resistor (R2) and a capacitor (C7) from COMP pin to GND. Please refer the application circuit table to design. |
Nº de peça semelhante - TS19378CSRLG |
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Descrição semelhante - TS19378CSRLG |
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