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ZXSC300 Fiches technique(PDF) 7 Page - Diodes Incorporated |
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ZXSC300 Fiches technique(HTML) 7 Page - Diodes Incorporated |
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7 / 12 page ![]() ZXSC300 ISSUE 4 - SEPTEMBER 2007 7 Ref Value Part Number Manufacture Comments U1 N/A ZXSC300E5 Zetex Plc Single cell converter, SOT23-5 Q1 N/A FMMT617 Zetex Plc Low VCE(SAT) NPN, SOT23 R1 330mW Generic Various 0805 Size L1 100 H DO1608P-104 Coilcraft Surface mount inductor LED1 5600mcd NSPW500BS Nichia White LED 1.0 1.5 2.0 2.5 3.0 3.5 85 90 95 100 Input Voltage v Efficiency Single LED Load Input Voltage (V) Q1 FMMT617 R1 0.33R L1 100µH VBATT LED1 WHITE LED Vcc Gnd Isense Vdrive U1 ZXSC300 Maximum battery life solution To ensure optimum efficiency, and therefore maximum battery life, the LED is supplied with a pulsed current. Maximum efficiency is ensured with the removal of rectifier losses experienced in the maximum brightness solution. Materials list |
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