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RT8801PQV Datasheet(PDF) 9 Page - Richtek Technology Corporation |
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RT8801PQV Datasheet(HTML) 9 Page - Richtek Technology Corporation |
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9 / 23 page  RT8801 Preliminary 9 DS8801-04 August 2007 www.richtek.com All brandname or trademark belong to their owner respectively Absolute Maximum Ratings (Note 1) Supply Voltage, VDD ----------------------------------------------------------------------------------------- 7V Input, Output or I/O Voltage -------------------------------------------------------------------------------- GND - 0.3V to V DD + 0.3V Power Dissipation, PD @ TA = 25 °C VQFN-32L 5x5 ------------------------------------------------------------------------------------------------ 2.78W Package Thermal Resistance (Note 4) VQFN-32L 5x5, θJA ------------------------------------------------------------------------------------------- 36°C/W Junction Temperature ---------------------------------------------------------------------------------------- 150 °C Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------ 260 °C Storage Temperature Range ------------------------------------------------------------------------------- −65°C to 150°C ESD Susceptibility (Note 2) HBM (Human Body Mode) --------------------------------------------------------------------------------- 2kV MM (Machine Mode) ----------------------------------------------------------------------------------------- 200V Electrical Characteristics Recommended Operating Conditions (Note 3) Supply Voltage, VDD ----------------------------------------------------------------------------------------- 5V ± 10% Ambient Temperature Range ------------------------------------------------------------------------------- 0 °C to 70°C Junction Temperature Range ------------------------------------------------------------------------------- 0 °C to 125°C To be continued Parameter Symbol Test Conditions Min Typ Max Units VDD Supply Current Nominal Supply Current IDD PWM 1,2,3,4 Open -- 12 16 mA Power-On Reset POR Threshold VDDRTH VDD Rising 4.0 4.2 4.5 V Hysteresis VDDHYS 0.2 0.5 -- V Trip (Low to High) VDVDTP Enable 0.8 0.9 1.0 V VDVD Threshold Hysteresis VDVDHYS -- 70 -- mV Oscillator Free Running Frequency fOSC RRT = 22.5kΩ 250 300 350 kHz Frequency Adjustable Range fOSC_ADJ 50 -- 400 kHz Ramp Amplitude ΔVOSC RRT = 22.5kΩ -- 1.9 -- V Ramp Valley VRV 0.7 1.0 -- V Maximum On-Time of Each Channel 62 66 75 % RT Pin Voltage VRT RRT = 22.5kΩ 1.7 1.8 1.9 V Reference and DAC VDAC ≥ 1V −1 -- +1 % DACOUT Voltage Accuracy ΔVDAC VDAC < 1V −10 -- +10 mV DAC (VID0-VID125) Input Low VILDAC -- -- 0.3 V DAC (VID0-VID125) Input High VIHDAC 0.8 -- -- V (VDD = 5V, TA = 25°C, unless otherwise specified) |
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