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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ZXLD1370 датащи(PDF) 2 Page - Diodes Incorporated |
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ZXLD1370 датащи(HTML) 2 Page - Diodes Incorporated |
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2 / 40 page  ZXLD1370 Document number: DS32165 Rev. 6 - 2 2 of 40 www.diodes.com December 2016 © Diodes Incorporated ZXLD1370 Typical Applications Circuit VAUX VIN ISM PWM GI ADJ GATE REF FLAG TADJ STATUS SHP SGND PGND L1 SD1 C1 C2 VIN 8V to 18V GND R1 LED 1 to 4 TH1 10k Thermally connected 33mH 0R1 4.7µF 100pF RGI2 62k 51k RGI1 2k R4 Q1 DMN6068LK3 PSD3100 I LED = 1A U1 ZXLD1370 COUT 4.7µF Buck-Boost Diagram Utilizing Thermistor and TADJ 85 ˚C 70 ˚C ILED 100% 10% TLED Thermal network response in Buck configuration with: Rth = 2k Ω and TH1=10kΩ (beta =3900) REF TADJ Rth TH1 Curve Showing LED Current vs. TLED Functional Block Diagram Fast current monitor Accurate current monitor - Error amp Demand current source Frequency & hysteresis control Gate driver ADJ COMPIN RS VIN + - LOAD L GI D R2 R1 VIN ISENSE VAUX VAUX PWM SGND PGND REF TADJ Reference STATUS FLAG Error report |
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