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ZL8800ALAFTK Datasheet(PDF) 10 Page - Intersil Corporation |
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ZL8800ALAFTK Datasheet(HTML) 10 Page - Intersil Corporation |
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10 / 84 page  ZL8800 10 FN7558.3 September 14, 2015 Submit Document Feedback PWM INPUT/OUTPUT CHARACTERISTICS PWM Output Low 2mA sinking - - 0.5 V PWM Output High 2mA sourcing 4.25 -- V PWM Tri-state Input Bias Current (PWMH0,1) Vpwm = 2.5V - - 10 µA OSCILLATOR AND SWITCHING CHARACTERISTICS Switching Frequency Range 200 - 1334 kHz Switching Frequency Set-point Accuracy -5 - 5 % Minimum SYNC Pulse Width 50% to 50% 150 -- ns Input Clock Frequency Drift Tolerance Maximum allowed drift of external clock -10 - 10 % PMBus™ Clock Frequency (Note 13) 100 - 400 kHz POWER MANAGEMENT SOFT-START/ RAMP CHARACTERISTICS Ton Delay/Toff Delay Factory default - 5 - ms Ton Delay/Toff Delay Range Set using PMBus™ command 2 5000 ms Ramp Delay/Toff Delay Accuracy Turn-on, turn-off delay - -0/+2 - ms Soft-start/Ton Ramp/Toff Ramp Duration Factory default - 5 - ms Soft-start/Ton Ramp/Toff Ramp Duration Range Set using PMBus™ command 0.5 100 ms Soft-start/Ton Ramp/Toff Ramp Duration Accuracy - ±250 - µs TRACKING VTRK Input Bias Current VTRK = 5V - 70 200 µA VTRK Regulation Accuracy 100% tracking, VOUT – VTRK15 -2 - 2 % VOUT POWER-GOOD Power-good VOUT Threshold Factory default - 90 - % VOUT Power-good VOUT Hysteresis Factory default - 5 - % Power-good Delay Applies to turn-on only (LOW to HIGH transition) Factory default - 1 - ms Set using PMBus™ command 0 - 5000 ms MONITORING AND FAULT MANAGEMENT INPUT VOLTAGE MONITOR AND FAULT DETECTION VDD/VIN UVLO Threshold Range 2.85 - 16 V VDD/VIN Monitor Accuracy Full Scale (FS) = 14V - ±2 - %FS VDD/VIN Monitor Resolution Full Scale (FS) = 14V - ±0.15 - %FS VIN UV/OV Fault Response delay - 100 - µs INPUT CURRENT Input Current Sense Differential Input Voltage VIINP-VIINN 0 - 20 mV Input Current Sense Input Offset Voltage VIINP-VIINN -±100- µV Input Current Sense Accuracy % of full scale (20mV) - ±5 - % FS OUTPUT VOLTAGE MONITOR AND FAULT DETECTION VOUT Monitor Accuracy FS = Vset voltage (Vo) -2 - 2 %FS VOUT Monitor Resolution FS = Vset voltage (Vo) - ± 0.15 - %FS VOUT UV/OV Fault Response Delay -10- µs Electrical Specifications VDD = 12V. Typical values are at TA = +25°C. Boldface limits apply across the operating ambient temperature range, TA -40°C to +85°C (Continued) PARAMETER TEST CONDITIONS MIN (Note 15)TYP MAX (Note 15)UNIT |
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