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MAX15035 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX15035 Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 28 page  (Circuit of Figure 1, VIN = 12V, VDD = VCC = VEN = 5V, REFIN = ILIM = REF, SKIP = GND. TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) (Circuit of Figure 1, VIN = 12V, VDD = VCC = VEN = 5V, REFIN = ILIM = REF, SKIP = GND. TA = -40°C to +85°C, unless otherwise specified.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN MAX UNITS PWM CONTROLLER Input Voltage Range VIN 4.5 26 V Quiescent Supply Current (VDD) IDD + ICC FB forced above REFIN 1.2 mA On-Time tON VIN = 12V, VFB = 1.0V (Note 3) RTON = 97.5kΩ (600kHz) 115 213 ns RTON = 200kΩ (300kHz) 270 336 RTON = 302.5kΩ (200kHz) 368 516 Minimum Off-Time tOFF(MIN) (Note 3) 400 ns REFIN Voltage Range VREFIN (Note 2) 0 VREF V PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Dynamic REFIN Transition Fault Blanking Threshold Fault blanking initiated; REFIN deviation from the internal target voltage (error comparator threshold); hysteresis = 10mV ±50 mV Thermal-Shutdown Threshold TSHDN Temperature rising, hysteresis = 15°C 160 °C CURRENT LIMIT ILIM Input Range 0.4 VREF V ILIM Input Bias Current TA = +25°C, ILIM = 0.4V to 2V -0.1 +0.1 µA Current-Limit Threshold VILIMIT VILIM = 0.4V, VGND - VLX 18 20 22 mV ILIM = REF (2.0V), VGND - VLX 92 100 108 Current-Limit Threshold (Negative) VINEG VILIM = 0.4V, VGND - VLX -24 mV Current-Limit Threshold (Zero Crossing) VZX VILIM = 0.4V, VGND - VLX, SKIP = GND or open 1 mV Ultrasonic Frequency SKIP = open (3.3V); VFB = VREFIN + 50mV 18 30 kHz Ultrasonic Current-Limit Threshold SKIP = open (3.3V); VFB = VREFIN + 50mV, VGND - VLX -35 mV Internal BST Switch On-Resistance RBST IBST = 10mA, VDD = 5V 4 7 Ω INPUTS AND OUTPUTS EN Logic-Input Threshold VEN EN rising edge, hysteresis = 450mV (typ) 1.20 1.7 2.20 V EN Logic-Input Current IEN EN forced to GND or VDD, TA = +25°C -0.5 +0.5 µA SKIP Quad-Level Input Logic Levels VSKIP High (5V VDD) VCC - 0.4 V Open (3.3V) 3.0 3.6 Ref (2.0V) 1.7 2.3 Low (GND) 0.4 SKIP Logic-Input Current ISKIP SKIP forced to GND or VDD, TA = +25°C -2 +2 µA MAX15035 15A Step-Down Regulator with Internal Switches www.maximintegrated.com Maxim Integrated │ 4 Electrical Characteristics 1 (continued) Electrical Characteristics 2 |
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