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MAX5069 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX5069 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 19 page High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers _______________________________________________________________________________________ 3 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CS Input Bias Current IB_CL VCS = 0V 0 +2 µA CS Blanking Time tCS_BLANK 70 ns Propagation Delay from Comparator Input to NDRV_ tPD_CL 50mV overdrive 40 ns IN CLAMP VOLTAGE IN Clamp Voltage VIN_CLAMP IN sinking 2mA (Note 2) 24.0 26.0 29.0 V ERROR AMPLIFIER (FB, COMP) Voltage Gain AV RCOMP = 100k Ω to AGND 80 dB Unity-Gain Bandwidth BW RCOMP = 100k Ω to AGND, CLOAD = 100pF to AGND 5 MHz Phase Margin PM RCOMP = 100k Ω to AGND, CLOAD = 100pF to AGND 65 Degrees FB Input Offset Voltage VOS_FB 3mV High 2.6 3.8 COMP Clamp Voltage VCOMP Low 0.4 1.1 V Error-Amplifier Output Current ICOMP Sinking or sourcing 0.5 mA +25°C ≤ TA ≤ +125°C (Note 3) 1.215 1.230 1.245 Reference Voltage VREF -40°C ≤ TA ≤ +125°C (Note 3) 1.205 1.230 1.242 V Input Bias Current IB_EA 100 300 nA COMP Short-Circuit Current ICOMP_SC 12 mA THERMAL SHUTDOWN Thermal-Shutdown Temperature TSD +170 °C Thermal Hysteresis THYST 25 °C OSCILLATOR SYNC INPUT (MAX5069A/D only) SYNC High-Level Voltage VIH_SYNC 2.4 V SYNC Low-Level Voltage VIL_SYNC 0.4 V SYNC Input Bias Current IB_SYNC 10 nA Maximum SYNC Frequency fSYNC fOSC = 2.5MHz (Note 4) 3.125 MHz SYNC High-Level Pulse Width tSYNC_HI 30 ns SYNC Low-Level Pulse Width tSYNC_LO 30 ns DIGITAL SOFT-START Soft-Start Duration tSS (Note 5) 2047 Cycles Reference-Voltage Step VSTEP 9.7 mV Reference-Voltage Steps During Soft-Start 127 Steps OSCILLATOR Oscillator Frequency Range fOSC fOSC = (10 11 / RRT) 50 2500 kHz ELECTRICAL CHARACTERISTICS (continued) (VIN = +12V for the MAX5069C/D, VIN = +23.6V for the MAX5069A/B at startup, then reduces to +12V, CIN = CREG5 = 0.1µF, CVCC = 1µF, RRT = 100k Ω, NDRV_ = floating, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) |
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