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 is5VDC 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.
Features
♦
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
Evaluates: MAX5022
MAX5022 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
19-2073; Rev 3; 4/05
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.
Ordering Information
PART
TEMP RANGE
IC PACKAGE
MAX5022EVKIT
0
°
C to +70
°
C
6 SOT23-6
Component List
DESIGNATION
QTY
DESCRIPTION
C1, C9
2
10.0µF
±
20%, 400V aluminum
electrolytic capacitors (12.5mm x
13.5mm)
Sanyo 400CV10FS
C2, C3
2
0.22µF
±
20%, 50V X7R ceramic
capacitors (1206)
TDK C3216X7R1H224M
C4, C10
2
47µF
±
20%, 6.3V aluminum organic
capacitors (case V)
Kemet A700V476M006AT018
C5, C12
2
0.01µF
±
10%, 16V X7R ceramic
capacitors (0402)
TDK C1005X7R1C103K
C6
1
0.1µF
±
10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H104K
DESIGNATION
QTY
DESCRIPTION
C7
1
1000pF
±
20%, 4KVAC (DE0910)
Murata DE1E3KX102MA5BA01
C8
1
8200pF
±
10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H822K
C11
1
1000pF
±
10%, 630V X7R ceramic
capacitor (1206)
TDK C3216X7R2J102K
C13
1
2200pF
±
10%, 50V X7R ceramic
capacitor (0402)
TDK C1005X7R1H222K
D1
1
250mA, 75V high-speed switching
diode (SOT-23)
Central Semiconductor CMPD914