MAX15005AEVKIT+ Maxim Integrated Products, MAX15005AEVKIT+ Datasheet

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MAX15005AEVKIT+

Manufacturer Part Number
MAX15005AEVKIT+
Description
KIT EVAL FOR MAX15005A
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of MAX15005AEVKIT+

Main Purpose
DC/DC, Step Up or Down
Outputs And Type
3, Isolated
Voltage - Output
3V, 110V, 60V
Current - Output
650mA, 55mA, 12mA
Voltage - Input
6.5 ~ 16V
Regulator Topology
Flyback
Frequency - Switching
100kHz
Board Type
Fully Populated
Utilized Ic / Part
MAX15005A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX15005A evaluation kit (EV kit) is a fully assem-
bled and tested PCB that contains an 11W flyback DC-
DC converter for vacuum-fluorescent displays (VFDs) in
automotive applications. The circuit uses a MAX15005A
high-performance, current-mode pulse-width modulation
(PWM) controller in a 16-pin TSSOP package. The EV kit
circuit is configured for output voltages of 3V, 60V, and
110V, and provides up to 650mA, 12mA, and 55mA of
current from the respective output. Additionally, a 5V low-
dropout (LDO) voltage regulator output is provided that
can source up to 15mA. Power for the EV kit circuit is pro-
vided from a 6.5V to 16V DC source. The MAX15005A EV
kit input circuit can sustain a 40V transient.
High efficiency of up to 71% is achieved using a single-
transistor flyback DC-DC converter topology. Low cost
is achieved through the use of direct secondary-side
regulation that does not require optical couplers. Input
undervoltage lockout (UVLO), output overvoltage pro-
tection (OVP), and soft-start provide for a robust 11W
power supply.
Operation at 100kHz minimizes the size of the trans-
former and passive components.
Warning: The MAX15005A 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 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, this EV kit may
dissipate large amounts of power, which could result in
the mechanical ejection of a component or of compo-
nent debris at high velocity. Operate this kit with care to
avoid possible personal injury.
19-0964; Rev 0; 8/07
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
DESIGNATION
C3, C10
C1
C2
QTY
________________________________________________________________ Maxim Integrated Products
1
1
2
330µF, 50V electrolytic capacitor
(12.5mm x 13.5mm)
Panasonic EEVFK1H331Q
0.1µF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H104K
1µF ±10%, 16V X7R ceramic
capacitors (0805)
Murata GRM21BR71C105K
General Description
DESCRIPTION
MAX15005A Evaluation Kit
♦ 6.5V to 16V DC Input Range
♦ Outputs
♦ Output Voltage Accuracy
♦ 71% Efficiency at 16V Input and Full Load
♦ 5V LDO Output Provides Up to 15mA
♦ Hiccup Current-Limit and Overtemperature
♦ 100kHz Switching Frequency
♦ Capacitor Adjustable Soft-Start
♦ High-Accuracy Undervoltage Lockout (UVLO)
♦ Output Overvoltage Protection (OVP)
♦ Capable of Synchronizing to an External Clock
♦ Low-Cost, Robust Flyback Design
♦ Fully Assembled and Tested
+ Denotes lead-free and RoHS-compliant.
MAX15005AEVKIT+
DESIGNATION
Shutdown
3V Provides Up to 650mA (VFD Filament)
60V Provides Up to 12mA (VFD Grid)
110V Provides Up to 55mA (VFD Anode)
110V (Anode) = ±3% (Regulated Output)
60V (Grid) = ±5% (Proportional Loading)
3V (Filament) = ±10% (Proportional Loading)
C4
C5
C6
PART
QTY
1
1
1
Ordering Information
100pF ±2%, 50V C0G ceramic
capacitor (0603)
Murata GRM1885C1H101G
1000pF ±5%, 50V C0G ceramic
capacitor (0603)
Murata GRM1885C1H102J
4700pF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GMR188R71H472K
Component List
DESCRIPTION
TYPE
EV Kit
Features
1

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MAX15005AEVKIT+ Summary of contents

Page 1

... High-Accuracy Undervoltage Lockout (UVLO) ♦ Output Overvoltage Protection (OVP) ♦ Capable of Synchronizing to an External Clock ♦ Low-Cost, Robust Flyback Design ♦ Fully Assembled and Tested Ordering Information PART MAX15005AEVKIT+ + Denotes lead-free and RoHS-compliant. DESIGNATION QTY 100pF ±2%, 50V C0G ceramic capacitor (0603) C4 ...

Page 2

MAX15005A Evaluation Kit DESIGNATION QTY DESCRIPTION 47pF ±5%, 50V C0G ceramic C7 1 capacitor (0603) Murata GRM1885C1H470J 0.68µF ±10%, 16V X7R ceramic C8 1 capacitor (0805) Murata GRM219R71C684K 560pF ±5%, 50V C0G ceramic capacitor (0603 Murata GRM1885C1H561J 2200pF ...

Page 3

SUPPLIER AVX Corp. Central Semiconductor Cooper Electronic Tech./Coiltronics Diodes Inc. IRC Murata Mfg. Co., Ltd. Panasonic Corp. SANYO Corp. Vishay Note: Indicate that you are using the MAX15005A when contacting these component suppliers. Required Equipment Before beginning, the following equipment ...

Page 4

MAX15005A Evaluation Kit The MAX15005A controller switches at a fixed 100kHz frequency and is set by resistor/capacitor network R1 and C5. The switching duty cycle is varied to control energy transfer to the outputs. The maximum duty cycle is 50% ...

Page 5

Output OVP Shutdown The MAX15005A EV kit features an OVP circuit that pre- vents operation above the programmed V_ANODE out- put supply voltage (136V default). Jumper JU3 config- ures the circuit for output OVP protection when the shunt is placed ...

Page 6

MAX15005A Evaluation Kit Figure 1. MAX15005A EV Kit Schematic 6 _______________________________________________________________________________________ ...

Page 7

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 7 © 2007 Maxim Integrated Products ...

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