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MAX1530ETJ+T Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1530ETJ+T Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 33 page ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, VIN = 12V, VEN = VSEQ = 5V, TA = 0 °C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER CONDITIONS MIN TYP MAX UNITS Comparator Bandwidth For EN, FB, FBL_ 10 kHz Duration to Trigger Fault Latch For FB, FBL_ 51 64 77 ms Overcurrent Protection Threshold (VCSH - VCSL) 270 300 330 mV Overcurrent Sense Common- Mode Range VCSH, VCSL 2.7 28.0 V CSH Input Current VCSH = 2.7V to 28V 100 µA CSL Input Current VCSL = VCSH = 12V -50 +50 nA Overcurrent Sense Filter RC Time Constant 50 µs THERMAL PROTECTION Thermal Shutdown Temperature rising, 15°C hysteresis 160 °C RESET FUNCTION RSTIN Reset Trip Level RSTIN falling, 25mV hysteresis 1.081 1.114 1.147 V RSTIN Input Leakage Current VRSTIN = 1.5V -50 +50 nA Comparator Bandwidth 10 kHz Reset Timeout Period 102 128 154 ms RESET Output Low Level IRESET = -1mA 0.4 V RESET Output High Leakage VRESET = 5V 1 µA STEP-DOWN CONTROLLER ERROR AMPLIFIER FB Regulation Voltage 1.223 1.238 1.253 V Transconductance FB to COMP 70 100 140 µS Voltage Gain FB to COMP 200 V/V Minimum Duty Cycle 15 % FB Input Leakage Current VFB = 1.5V -50 +50 nA FB Input Common-Mode Range (Note 2) -0.1 +1.5 V COMP Output Minimum Voltage VFB = 1.5V 1 V COMP Output Maximum Voltage VFB = 1.175V 3 V Current-Sense Amplifier Voltage Gain VIN - VLX 2.75 3.5 4.0 V/V Current-Limit Threshold (Default Mode) PGND - LX, ILIM = VL 190 250 310 mV Current-Limit Threshold (Adjustable Mode) PGND - LX, VILIM = 1.25V 190 250 310 mV ILIM Input Dual Mode™ Threshold 3.0 3.5 4.00 V OSCILLATOR FREQ = AGND 200 250 300 Switching Frequency FREQ = VL 425 500 575 kHz FREQ = AGND 75 80 88 Maximum Duty Cycle FREQ = VL 75 80 88 % Multiple-Output Power-Supply Controllers for LCD Monitors _______________________________________________________________________________________ 3 Dual Mode is a trademark of Maxim Integrated Products, Inc. |
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