19-2716; Rev 0a; 1/03
MAX5052A Evaluation Kit
General Description
The MAX5052A evaluation kit (EV kit) is a fully assem-
bled and tested circuit board that contains a 9W fly-
back DC-to-DC converter. The circuit is configured for
output voltages of +5V and +15V and provides up to
1.5A and 100mA of current at each respective output.
Power for the circuit can be provided from either a
+36VDC to +72VDC or -36VDC to -72VDC source.
High efficiency up to 83% is achieved using a single-
transistor, flyback DC-to-DC converter topology. The sur-
face-mount transformer provides up to 1500V galvanic
isolation of both outputs. Low cost is achieved through
the use of primary-side regulation while undervoltage
lockout (UVLO), digital soft-start, and thermal shutdown
provide for a robust 9W isolated power supply.
Operation at 262kHz allows the use of small magnetics
and output capacitors.
Warning:
The MAX5052A EV kit is designed to operate
with high voltages. Dangerous voltages are present on
the MAX5052A EV kit and on equipment connected to
it. Users who power up the MAX5052A EV kit or power
the sources connected to it must be careful to follow
safety procedures appropriate to working with high-
voltage electrical equipment.
Under severe fault or failure conditions, the MAX5052A
EV kit may dissipate large amounts of power, which
could result in the mechanical ejection of a component
or of component debris at high velocity. Operate
MAX5052A EV kit with care to avoid possible personal
injury.
Features
o
+36VDC to +72VDC or -36VDC to -72VDC Input
Voltage Range
o
Isolated Outputs
VOUT1: +5V Provides Up to 1.5A
VOUT2: +15V Provides Up to 100mA
o
鹵5% (typ) Load Regulation for the +5V Output
(150mA to 1.5A)
o
83% Efficiency at 48V Input and Full Load
o
Cycle-by-Cycle Current Limit
o
262kHz Switching Frequency
o
Digital Soft-Start
o
Undervoltage Lockout (UVLO)
o
Designed for 1500V Isolation with Primary-Side
Regulation
o
Low-Cost Flyback Design
o
Fully Assembled and Tested
Evaluates: MAX5052A
Ordering Information
PART
MAX5052AEVKIT
TEMP RANGE
0擄C to +70擄C
IC PACKAGE
8 碌MAX
Component Suppliers
SUPPLIER
Central Semiconductor
Cooper-Coiltronics
Dale-Vishay
Diodes Inc.
Fair-Rite Products
International Rectifier
Kemet
Murata
Panasonic
TDK
Telefunken-Vishay
Zetex USA
PHONE
631-435-1110
561-752-5000
402-564-3131
805-446-4800
845-895-2055
310-322-3331
864-963-6300
770-436-1300
714-373-7366
847-803-6100
402-563-6325
631-543-7100
FAX
631-435-1824
561-742-1178
402-563-6296
805-446-4850
845-895-2629
310-726-8721
864-963-6322
770-436-3030
714-737-7323
847-390-4405
N/A
631-864-7630
WEBSITE
www.centralsemi.com
www.cooperet.com
www.vishay.com
www.diodes.com
www.fair-rite.com
www.irf.com
www.kemet.com
www.murata.com
www.panasonic.com
www.component.tdk.com
www.vishay.com
www.zetex.com
Note:
Please indicate that you are using the MAX5052A when contacting these component suppliers.
________________________________________________________________
Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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