Maxim MAX5022EVKIT General Description Manual

19-2073; Rev 3; 4/05
General Description
The MAX5022 evaluation kit (EV kit) is a fully assembled
and tested 5W flyback-converter circuit board. The
power supply is configured for an isolated +5VDC out-
put voltage that can supply up to 1A of current. The line
input voltage range is from 85VAC to 265VAC or
120VDC to 375VDC.
The MAX5022 EV kit demonstrates high efficiency up to
80% at 262kHz switching frequency. This high efficiency
is achieved by using a single transistor (MOSFET),
flyback-converter topology providing output power up to
5W. The surface-mount transformer has a tertiary wind-
ing to power the MAX5022 IC after startup. An optocou-
pler along with the transformer provide input-to-output
isolation up to 4500VDC.
Warning: The MAX5022 EV kit is designed to operate
with high voltages. Dangerous voltages are present on
this EV kit and on equipment connected to it. Users
who power up this EV kit or the power sources connect-
ed to it must be careful to follow safety procedures
appropriate for working with high-voltage electrical
equipment.
Under severe fault or failure conditions, this EV kit may
dissipate large amounts of power, which could result in
the mechanical ejection of a component or component
debris at high velocity. Operate this kit with care to
avoid possible personal injury.
DESIGNATION QTY
10.0µF ±20%, 400V aluminum
electrolytic capacitors (12.5mm x
C1, C9 2
13.5mm)
Sanyo 400CV10FS
0.22µF ±20%, 50V X7R ceramic
C2, C3 2 capacitors (1206)
TDK C3216X7R1H224M
47µF ±20%, 6.3V aluminum organic
C4, C10 2 capacitors (case V)
Kemet A700V476M006AT018
0.01µF ±10%, 16V X7R ceramic
C5, C12 2 capacitors (0402)
TDK C1005X7R1C103K
0.1µF ±10%, 50V X7R ceramic
C6 1 capacitor (0603)
TDK C1608X7R1H104K
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
MAX5022 Evaluation Kit
DESCRIPTION
♦ 85VAC to 265VAC or 120VDC to 375VDC Input
Range
♦ Isolated Output Voltage: +5VDC at 1A
♦ Input-to-Output Isolation Up to 4500VDC
♦ Fully Assembled and Tested
♦ Efficiency Up to 80%
♦ 2% Output Voltage Regulation Over Line and
Load

Ordering Information

PART TEMP RANGE
MAX5022EVKIT 0°C to +70°C
DESIGNATION QTY
C7 1
C8 1
C11 1
C13 1
D1 1

Features

IC PACKAGE
6 SOT23-6

Component List

DESCRIPTION
1000pF ±20%, 4KVAC (DE0910)
Murata DE1E3KX102MA5BA01
8200pF ±10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H822K
1000pF ±10%, 630V X7R ceramic
capacitor (1206)
TDK C3216X7R2J102K
2200pF ±10%, 50V X7R ceramic
capacitor (0402)
TDK C1005X7R1H222K
250mA, 75V high-speed switching
diode (SOT-23)
Central Semiconductor CMPD914
1