AC-to-DC Regulator

(110/220VAC to 5.0VDC)

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3

ELECTRICAL CHARACTERISTICS (continued)

Figure 9a, MAX611 only,

C3 = 0.01µF

CONDITIONS

µA

0.001

10

OUV Output Leakage

V

4.35

4.65

V

5.4

5.65

Overvoltage Detection Voltage

Undervoltage Detection Voltage

V

0.4

OUV Output Voltage

ms

30

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,

7

AC1

AC input to the internal diode rectifier

6

Positive regulated DC output.

5

V

8.0

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.

(MAX610/612)

(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.