Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsDev KitsPCB design board

General Description

The MAX15031 evaluation kit (EV kit) demonstrates the

MAX15031 APD biasing pulse-width modulation (PWM)

step-up DC-DC converter with an internal power switch,

current monitor, and adjustable current limiting. The

step-up converter switches at 400kHz. The EV kit oper-

ates from a DC supply voltage of 2.9V to 5.5V and is

configured to deliver approximately 70V and 0 to 4mA

of current at the output. The output voltage can be con-

figured from VIN + 1V to 76V by replacing a resistor or

adjusting the CNTRL voltage. The EV kit demonstrates

the MAX15031 APD fast current-limit, undervoltage

lockout (UVLO), and thermal shutdown features.

The actual converter circuit’s PCB footprint is 8mm x

18mm as required in BPON (broadband passive optical

network) and GPON (gigabit passive optical network)

applications and demonstrates the MAX15031’s small,

16-pin TQFN package with exposed pad. The EV kit

also features an APD input load simulator circuit for cur-

rent monitoring and step-response measurements.

WARNING: Voltages exceeding 42V may exist on

the VOUT, APD, MOUT, and PGND PCB pads.

Features

♦ Tiny 8mm x 18mm Circuit Footprint

♦ 2.9V to 5.5V Wide Supply Voltage Range

♦ 70V Output Voltage (Approximate)

♦ 0 to 4mA Output Current

♦ Demonstrates APD Fast Current Limit

♦ Demonstrates Undervoltage Lockout

♦ Demonstrates Thermal Shutdown Feature

♦ MOUT Output Overvoltage Protection Through

Clamping Circuit

♦ Lead(Pb)-Free and RoHS Compliant

♦ Fully Assembled and Tested

Evaluates: MAX15031

MAX15031 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

19-4376; Rev 0; 11/08

Component List

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.

Ordering Information

DESIGNATION QTY DESCRIPTION

C1 1

1µF ±10%, 10V X5R ceramic

capacitor (0402)

Murata GRM155R61A105K

C2 1

0.01µF ±10%, 25V X7R ceramic

capacitor (0402)

Murata GRM155R71E103K

C3, C8 2

0.1µF ±10%, 16V X7R ceramic

capacitors (0402)

Murata GRM155R71C104K

C4, C5 2

0.1µF ±10%, 100V X7R ceramic

capacitors (0805)

AVX 08051C104KAT

C6 1

0.01µF ±10%, 100V X7R ceramic

capacitor (0805)

Murata GRM21BR72A103K

C7 0 N ot i nstal l ed , cer am i c cap aci tor ( 0402)

C9 1

10µF ±10%, 10V X5R ceramic

capacitor (0805)

Murata GRM219R61A106K

D1 1

100V , 150m A S chottky d i od e ( S OD 123)

Diodes, Inc. BAT46W-7-F

(Top Mark: L6)

JU1 1 2-pin header

DESIGNATION QTY DESCRIPTION

JU2 1 3-pin header

L1 1

4.7µH, 1.5A inductor

Coilcraft ME3220-472MLB

N1 1

100V 1.5A n- channel M OS FE T ( S OT23)

Vishay Si2328DS-T1-E3

(Top Mark: CHV)

R1 1 348kΩ ±1% resistor (0603)

R2 1 6.34kΩ ±1% resistor (0402)

R3, R6 2 10kΩ ±1% resistors (0402)

R5 1 2.87kΩ ±1% resistor (0402)

R7 1 10kΩ ±1% resistor (0805)

R8 1 10kΩ ±1% resistor (1206)

R9 1 2kΩ ±1% resistor (0805)

R10 1 100Ω ±1% resistor (0402)

TP1, TP2, TP4 3 PC mini red test points

TP3, TP6 2 PC mini black test points

TP5 1 PC mini yellow test point

U1 1

APD boost converter (16 TQFN-EP*)

Maxim MAX15031ATE+

— 2 Shunts ( JU1, JU2)

— 1 PCB: MAX15031 Evaluation Kit+

PART TYPE

MAX15031EVKIT+ EV Kit

Denotes lead(Pb)-free and RoHS compliant.

EP = Exposed pad.

Summary of content (5 pages)

PAGE 1
9-4376; Rev 0; 11/08 MAX15031 Evaluation Kit Features The MAX15031 evaluation kit (EV kit) demonstrates the MAX15031 APD biasing pulse-width modulation (PWM) step-up DC-DC converter with an internal power switch, current monitor, and adjustable current limiting. The step-up converter switches at 400kHz. The EV kit operates from a DC supply voltage of 2.9V to 5.5V and is configured to deliver approximately 70V and 0 to 4mA of current at the output.
PAGE 2
Evaluates: MAX15031 MAX15031 Evaluation Kit Component Suppliers SUPPLIER PHONE WEBSITE AVX Corporation 843-946-0238 Coilcraft, Inc. 847-639-6400 www.avxcorp.com www.coilcraft.com Diodes, Inc. 805-446-4800 www.diodes.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Vishay 402-563-6866 www.vishay.com Note: Indicate that you are using the MAX15031 when contacting these component suppliers.
PAGE 3
MAX15031 Evaluation Kit Table 2. Output-Voltage Programming (Jumper JU1) SHUNT POSITION CNTRL PIN Installed Connected to VIN Fixed output voltage: Internal reference voltage used Not installed Connected to external reference Programmable output voltage: Apply an external reference voltage (< 1.25V) at CNTRL PCB pad Connected to external reference Fixed output voltage: Apply an external reference voltage (> 1.
PAGE 4
Evaluates: MAX15031 MAX15031 Evaluation Kit Figure 1.
PAGE 5
MAX15031 Evaluation Kit Evaluates: MAX15031 Figure 2. MAX15031 EV Kit Component Placement Guide— Component Side Figure 3. MAX15031 EV Kit PCB Layout—Component Side Figure 4. MAX15031 EV Kit PCB Layout—Solder Side 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.