MAX610 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – AC-to-DC Regulator(110/220VAC to 5.0VDC)

19-0914; Rev 1; 12/94
AC-to-DC Regulator
(110/220VAC to 5.0VDC)
_______________General Description
The MAX610/MAX611/MAX612 AC-to-DC power convert-
ers reduce the component count, size, and weight of 1/4
watt power supplies, thus minimizing the overall cost and
simplifying designs. With an 8V_RMS input voltage, the
MAX610 needs only a single filter capacitor to make a
complete 5V, 50mA power supply. With the addition of a
current-limiting resistor and a current-limiting capacitor, the
MAX610 connects directly to the 110VAC or 220VAC
power line to make a minimum component count
110/220VAC to 5VDC power supply.
The devices in the MAX610 family differ in three respects:
full- or half-wave rectification, 12V or 18V zener voltage,
and the assignment of pin 4 to the function of setting the
output voltage or setting the time delay. The MAX610 has
a full-wave rectifier, a 12V zener, and the output voltage is
either the internally preset +5V or user adjustable from
+1.3V to +9V. The MAX611 has a half-wave rectifier, a 12V
zener, a fixed +5V output, and pin 4 controls the time delay
of the reset output. The MAX612 has a full-wave rectifier,
an 18V zener, and the output voltage is either the internally
preset +5V or user adjustable from +1.3V to +15V
The low-cost MAX610 family is ideal for applications where
the size, weight, and component count of 1/4 watt power
supplies must be reduced. Reliable power-up reset and
over/undervoltage detection make these devices well suited
for microprocessor-based controllers.
________________________Applications
Minimum-Component-Count Power Supplies
Uninterruptible 5V Power Supplies
Precision Battery Chargers
Line-Powered Appliances
Industrial Controls
Off-Line Instruments
Triac Output Power Controllers
__________Typical Operating Circuit
110/220VAC
INPUT
AC1
V_OUT
AC2
V_SENSE
V_SET ^MAX610 OUV
V-
V+
+5V DC
OUTPUT
TO µP
RESET
+12V DC
OUTPUT
____________________________Features
o Direct 110/220VAC to 5VDC Conversion
o Minimum External Component Count
o Output Voltage Preset to 5V ±4%
o 70µA Typical Quiescent Current
o Over/Undervoltage Detection
o Power-Up Reset Circuit with Programmable Delay
o Programmable Current Limiting
o Programmable Output Voltage: 1.3V to 15V
______________Ordering Information
PART
MAX610CPA
MAX610CSA
MAX611CPA
MAX611CSA
MAX612CPA
MAX612CSA
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
_________________Pin Configurations
TOP VIEW
AC2 1
V- ²
OUV ³
V_SET ⁴
MAX610
MAX612
DIP/SO
8 _V+
7 AC1
6 V_OUT
5 _VSENSE
N.C. 1
V- ²
OUV ³
RD ⁴
MAX611
DIP/SO
8 _V+
7 AC1
6 V_OUT
5 _VSENSE
________________________________________________________________ Maxim Integrated Products 1
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