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MAX612 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX612 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 12 page AC-to-DC Regulator (110/220VAC to 5.0VDC) _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (TA = +25°C, V+ = 10V, RSENSE = 0Ω, VSET connected to V-, unless otherwise noted.) VSENSE = 5V, OUV = 5V Measured at VSENSE Measured at VSENSE VSENSE ≥ 5.65V or VSENSE ≤ 4.35V, IOUV = 1mA Figure 9a, MAX611 only, C3 = 0.01µF CONDITIONS µA 0.001 10 IOUV OUV Output Leakage V 4.35 4.65 VOUVL V 5.4 5.65 VOUVH Overvoltage Detection Voltage Undervoltage Detection Voltage V 0.4 VOUV OUV Output Voltage ms 30 tDELAY Reset Time Delay UNITS MIN TYP MAX SYMBOL PARAMETER ______________________________________________________________Pin Description NAME FUNCTION PIN 2 V- Negative output terminal. This terminal is also an AC input for the half-wave rectifier of the MAX611. 3 OUV The open-drain pin goes low during undervoltage and overvoltage conditions. The undervoltage and overvoltage thresholds are fixed at 4.65V (undervoltage) and 5.4V (overvoltage) and do not change, even if the output voltage is changed via the VSET terminal. 7 AC1 AC input to the internal diode rectifier 6 VOUT Positive regulated DC output. 5 VSENSE Current-limit input. The output short-circuit current limit is 0.6V/RSENSE, where RSENSE is a current-sens- ing resistor connected between VOUT and VSENSE. MAX611 only, V+ = VZ V 8.0 VTH Reset Pin Threshold AC2 (MAX610/612) Second AC input to the full- wave bridge rectifier. 1 N.C. (MAX611) This pin is not connected on the MAX611. VSET (MAX610/612) If the VSET terminal is grounded, the MAX610 and MAX612 output voltage will be the preset 5V ±4%. Alternatively, the VSET input can be used to set the output voltage to any voltage from 1.3V to 15V (MAX612) or 1.3V to 10V (MAX610/MAX611), using a simple resistive voltage divider (Figure 7). 4 RD (MAX611) An external capacitor connected to the Reset Delay pin determines the Reset Delay period. The reset time delay is directly proportional to the capacitance connected to this pin; each 0.01µF of capacitance results in 30 milliseconds of delay. This delay period must elapse before the Reset/OUV pin goes high after an overvoltage or undervoltage condition (Figure 9). 8 V+ Positive unregulated or raw DC output of the rectifier. The raw DC filter capacitor connects to this terminal. |
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