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XRP7618EVB Datasheet(PDF) 2 Page - Exar Corporation |
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XRP7618EVB Datasheet(HTML) 2 Page - Exar Corporation |
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2 / 10 page  X XR RP P7 76 61 18 8 8 8--C Ch ha an nn ne ell C Co on ns stta an ntt C Cu urrrre en ntt L Liin ne ea arr L LE ED D D Drriiv ve err W Wiitth h S Sm ma arrtt T Ta allk kTTM M © 2011 Exar Corporation 2/10 Rev. 1.0.0 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VCC, ISET, EN, FB, SDB, PWM ...................... -0.3V to 6.0V CHx .......................................................... -0.3V to 30V Junction Temperature .......................................... 150°C Storage Temperature .............................. -65°C to 150°C Power Dissipation ................................ Internally Limited Lead Temperature (Soldering, 10 sec) ................... 260°C ESD Rating (HBM - Human Body Model) .................... 6kV ESD Rating (MM - Machine Model) ...........................200V OPERATING RATINGS Input Voltage Range VCC ..............................4.2V to 5.5V PWM Dimming Frequency.......................0.1KHz to 25KHz Current per Channel ..................................................... VCHx≥0.5V ........................................... 10mA to 25mA VCHx≥1V.............................................. 10mA to 65mA VCHx≥1.5V ......................................... 10mA to 110mA Operating Temperature Range................... -40°C to 85°C Thermal Resistance θJA (TSSOP-20)..................... 35°C/W ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Junction Temperature of TJ = 25°C only. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise indicated, VCC = 5V, RISET = 8.2kΩ, TA= 25°C. Parameter Min. Typ. Max. Units Conditions Operating Input Voltage Range VCC 4.2 5.0 5.5 V Shutdown Supply Current 0.1 1 µA VEN=0V Quiescent Supply Current 0.5 1 mA No load Under Voltage Lockout threshold 3.6 3.8 4.0 V Falling edge Under Voltage Lockout Hysteresis 200 mV ISET Reference Voltage 1.170 1.194 1.218 V Current Multiplication Ratio 370 400 430 ICHX/ISET Maximum Output Current per Channel 23 45 mA VCHX=0.5V 65 70 VCHX=1.0V 110 120 VCHX=1.5V LED Current Matching -1.5 1.5 % Any 2 channels VCHX=1.0V, ICHX=60mA Current Sink Saturation Voltage 0.45 V ICHX=20mA 0.8 ICHX=60mA 1.2 ICHX=100mA Output Current Line Regulation 2 %/V VCC=4.2V to 5.5V Output Current Load Regulation 4 % VCHX=0.5V to 2.8V Enable Logic LOW 0.8 V XRP7618 is disabled Enable Logic HIGH 1.8 V XRP7618 is active PWM Pin Logic LOW 0.8 V XRP7618 is disabled PWM Pin Logic HIGH 1.8 V XRP7618 is active SDB Pin Logic LOW 0.4 V SDB Pin Logic HIGH 2.4 V Feedback Output Current 5 15 µA Thermal Shutdown Die Temperature 160 °C Thermal Shutdown Hysteresis 20 °C |
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