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XRP7620EVB Datasheet(PDF) 2 Page - Exar Corporation |
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XRP7620EVB Datasheet(HTML) 2 Page - Exar Corporation |
2 / 11 page X XR RP P7 76 62 20 0 4 4--C Ch ha an nn ne ell A Ad djju us stta ab blle e C Cu urrrre en ntt II2 2C C C Co on nttrro olllle ed d L LE ED D D Drriiv ve err © 2009 Exar Corporation 2/11 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. VIN, SDA, SCL, LEDx .................................. -0.3V to 6.0V Storage Temperature .............................. -65°C to 150°C Power Dissipation ................... Internally Limited (Note 1) Lead Temperature (Soldering, 10 sec) ................... 300°C ESD Rating (Human Body Model) ............................. 2kV OPERATING RATINGS Input Voltage Range VIN...............................2.7V to 5.5V Junction Temperature Range ....................-40°C to 100°C Thermal Resistance θJA ...................................... 59°C/W ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Junction Temperature of TJ = 25°C only; limits applying over the full Operating Junction Temperature range are denoted by a “•”. 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, VIN = 2.7V to 4.6V, CIN = 1µF, TA= –40°C to 85°C, TJ = –40°C to 100°C. Parameter Min. Typ. Max. Units Conditions Operating Input Voltage Range 2.7 5.5 V • Operating Input Current DAC=000000 30 50 µA • ILEDX=0, VIN=4.2V Operating Input Current 450 600 µA • ILED1=ILED2=ILED3=ILED4=10mA, VIN=4.2V -0.3 0.3 mA • VLED = 0.2V to 2.7V ILEDX ≤ 6mA -5 5 % LED Current accuracy (includes Line Regulation) -8 8 % • VLED = 0.2V to 2.7V ILEDX > 6mA LED Current Matching -3 3 % • For same DAC setting VLED = 0.2V to 2.7V, Note 2 Line Regulation 1 %/V • Measured as ΔIOUT /IOUT_AVG /ΔV VLED = 0.2V to 2.7V, Note 3 Current DAC Resolution 6 Bit Current for DAC=000000 2 µA • Applies to all LEDs Current for DAC=000001 0.35 0.50 0.65 mA Applies to all LEDs Maximum LED Current DAC=111111 30.50 31.75 33.00 mA Applies to all LEDs 2 µs • For changes between any DAC code 000001 and higher. Current must change within this time after the last bit of LED data. VIN=2.7 to 5.5V Maximum Current Change Settling Time 60 150 µs Applies to changes between DAC code 000000 and higher or change from 0 to 1 for STATUS bits B5-B2 (channel enable). Current must change within this time after the last bit of LED data. VIN=2.7 to 5.5V Current Source Dropout Voltage 0.1 0.15 V • ILED=20mA; The voltage where LED current decreases 3% from nominal value at VLED = 1V. VIN=2.7 to 5.5V Shutdown Supply Current 0.01 1 µA VIN=4.2V Shutdown Supply Current 5 µA VIN=4.2V, TA=85°C Thermal Shutdown Die Temperature 125 150 175 °C Regulator turns off |
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