Quick Start

Required Equipment

•

One each of the following DC power supplies:

12V at 12A (the 12V supply must be rated

12A or higher)

3.3V at 10A

•

Three voltmeters

The 3.3V power supply can be used to power the main

3.3V and 3.3V_AUX inputs.

The MAX5946L EV kit is fully assembled and tested.

Follow these steps to verify board operation. Do not

turn on the power supply until all connections are

completed.

Note: The banana leads connecting the 12V and

3.3V power supply to the EV kit must be short (<12

inches long).

MAX5946L Configuration A/B Channel

Outputs

1) Verify that shunts are installed on jumpers JU1

(PRES-DETA) and JU2 (PRES-DETB).

2) Verify that shunts are not installed on jumpers JU3

(MRLA) and JU4 (MRLB).

3) Verify that shunts are installed on pins 1 and 2 of

jumpers JU5–JU8 (local switch control).

4) Set switches SW3 (ONB) and SW4 (AUXONB) to

the ON position (Channel B).

5) Set switches SW5 (ONA) and SW6 (AUXONA) to

the ON position (Channel A).

6) Utilizing short 10A-rated banana leads (<12in long)

connect the 12V DC power supply to the VIN1

banana jack. Utilizing short 10A-rated banana

leads (<12in long) connect the supply ground to

the GND banana jack.

7) Utilizing short 10A-rated banana leads (<12in

long) connect the 3.3V DC power supply to the

VIN2 banana jack. Utilizing short 10A-rated

banana leads (<12in long) connect the supply

ground to the GND banana jack.

8) Connect the 3.3V DC power supply to the VIN3

banana jack with a short banana lead. Connect the

supply ground to the GND banana jack.

9) Connect a voltmeter to the 12VA pad or test point

TP1 and GND. Connect a voltmeter to the 3.3VA

pad or test point TP9 and GND. Connect a volt-

meter to the 3.3VAUXA pad or test point TP10 and

GND.

10) Turn on both power supplies in any sequence.

11) Verify that the voltage at the following pads is as

shown below:

a. 12VA, 12VB = 12V

b. 3.3VA, 3.3VB = 3.3V

c. 3.3VAUXA, 3.3VAUXB = 3.3V

12) Sliding switches SW5 and SW6 to the OFF position

will disable channel A on the MAX5946L EV kit dual

hot-plug controller.

13) Sliding switches SW3 and SW4 to the OFF position

will disable channel B on the MAX5946L EV kit dual

hot-plug controller.

14) Test points TP25, TP26, TP24, TP23, and GND pads

nearby are provided to observe MOSFETs N1–N4

gate voltage, respectively, with an oscilloscope.

See the MAX7313 Input/Output Expander and SMBus

Interface section for configuring the Input/Output

Expander and using the CMODUSB interface board.

MAX5946L Evaluation Kit/Evaluation System

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3

SUPPLIER

PHONE

FAX

WEBSITE

Diodes Inc.

805-446-4800

805-446-4850

www.diodes.com

IRC

361-992-7900

361-992-3377

www.irctt.com

Murata

770-436-1300

770-436-3030

www.murata.com

Panasonic

714-373-7366

714-737-7323

www.panasonic.com

Sanyo Electronic Device

619-661-6835

619-661-1055

www.sanyodevice.com

TDK

847-803-6100

847-390-4405

www.component.tdk.com

Vishay

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—

www.vishay.com

Component Suppliers

Note: Indicate that you are using the MAX5946L when contacting these component suppliers.