MAX769EVKIT Maxim Integrated, MAX769EVKIT Datasheet

MAX769EVKIT

Manufacturer Part Number

MAX769EVKIT

Description

Power Management IC Development Tools Evaluation Kit for the MAX769

Manufacturer

Maxim Integrated

Series

MAX769r

Datasheet

1.MAX769EVKIT.pdf (7 pages)

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The MAX769 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.

1) Check the positions of jumpers JU1–JU12. See

2) Check the positions of switches SW1–SW4.

3) Connect a +3V supply voltage to the BATT pad.

4) Connect a voltmeter and load, if any, to the OUT

5) Turn on the input power supply and verify that the

MAX769 Evaluation Kit

Note: Please indicate that you are using the MAX769 when

AVX

CoilCraft

Coiltronics

Dale-Vishay

Motorola

Sprague

Sumida

Vishay/Vitramon

Table 2 and the MAX769 data sheet for details.

Jumper connections for the MAX847 and MAX769

are not the same.

SW1–SW3 should be high (closest to the top edge

of the evaluation board). When testing the MAX769,

SW4 is not used and should be disconnected by

leaving JU12-1 open.

The power-supply ground connects to the GND

pad.

pad. Note that the MAX769 is designed to start in

the low-power (COAST) mode—it cannot supply full

load until RUN mode is set after start-up (by the ser-

ial interface).

output voltage is 3.0V. This is the MAX769’s starting

OUT voltage. Other voltages can then be pro-

grammed via the serial interface (see MAX769 data

sheet).

_______________________________________________________________________________________

SUPPLIER

contacting these component suppliers.

Component Suppliers

803-946-0690

708-639-6400

561-241-7876

402-564-3131

602-303-5454

603-224-1961

708-956-0666

203-268-6261

PHONE

Quick Start

803-626-3123

708-639-1469

561-241-9339

402-563-6418

602-994-6430

603-224-1430

708-956-0702

203-452-5670

FAX

The MAX769 is designed to be controlled by a serial

interface; however, slide-switches SW1–SW4 and LED1

are provided on the EV kit to assist in “bench-top” eval-

uation (Table 1). See the MAX769 data sheet for

descriptions of the programmable features and for

more information on serial programming.

To manually program data into the device, start with

SW1, SW2, and SW3 high. Then sequence through the

following steps:

1) Set SW3

2) Set the first desired data input bit with SW2.

3) Toggle the serial clock down and up with SW1. Data

4) Repeat steps 2 and 3 for each of the next seven

5) Set SW3 high.

The MAX769 evaluation board contains provisions for

two types of connectors for serial-interface connec-

tions. One is a 6-pin single in-line header (J1) that con-

tains only serial-interface connections. The other is a

DB-25 pad footprint (J2) that has serial connections

along with other IC pin connections. Pin/pad connec-

tions are outlined in Tables 3 and 4.

Table 1. Switch and LED Functions

SWITCH/

is loaded on the SCL rising edge.

input data bits (for a total of eight bits).

LED1

LED

SW1

SW2

SW3

SW4

(CS) low.

Manual Serial Clock

Input (SCL)

Manual Serial Data

Input (SDI)

Manual Chip-Select

Input (CS)

This switch does not

function with MAX769.

SW4 is RUN/COAST

selection on MAX847

only.

Visual Data Output

(SDO)

FUNCTION

Manual Programming

Logic-high level is

with switch pushed

toward top of board.

Logic-low level is

with switch pushed

toward switch label

“SW1,” “SW2,” etc.

LED on is logic-high

output.

COMMENTS

Connectors

Related parts for MAX769EVKIT

MAX769EVKIT Summary of contents

Page 1

MAX769 Evaluation Kit Component Suppliers SUPPLIER PHONE AVX 803-946-0690 CoilCraft 708-639-6400 Coiltronics 561-241-7876 Dale-Vishay 402-564-3131 Motorola 602-303-5454 Sprague 603-224-1961 Sumida 708-956-0666 Vishay/Vitramon 203-268-6261 Note: Please indicate that you are using the MAX769 when contacting these component suppliers. The MAX769 EV ...

Page 2

Table 2. Jumper Selection MAX769 JUMPER DEFAULT NUMBER POSITION JU1 should be inserted if no external synchronous clock is used external synchronous JU1 On clock is applied, then JU1 should be removed. With JU2 inserted, the low battery ...

Page 3

MAX769 Evaluation Kit Table 3. Connector Pinouts for J1 (6-Pin Header) J1 PIN FUNCTION J1-1 REG1 Output Voltage CS J1-2 J1-3 SDI J1-4 SCL J1-5 SDO J1-6 GND 4 _______________________________________________________________________________________ Table 4. Connector Pinouts for J2 (DB-25) J2-PIN FUNCTION J2-1 ...

Page 4

Figure 1. MAX769 EV Kit Schematic _______________________________________________________________________________________ MAX769 Evaluation Kit 5 ...

Page 5

MAX769 Evaluation Kit 1.0" Figure 2. MAX769 EV Kit Component Placement Guide—Component Side 6 _______________________________________________________________________________________ ...

Page 6

Figure 3. MAX769 EV Kit PC Board Layout—Component Side _______________________________________________________________________________________ MAX769 Evaluation Kit 7 ...

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. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1998 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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