Analog Devices EVAL-LTC7063-AZ Manuel utilisateur

Evaluation Board User Guide

EVAL-LTC7063-AZ

150V Half-Bridge Driver with Floating Grounds and Adjustable Dead-Time

Rev 0

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General Description

The EVAL-LTC7063-AZ evaluation circuit is a half-bridge

driver that drives two N-channel MOSFETs. The PWM

input control is 5V logic compatible and controls both gate

outputs, with one output being the complement of the

other. The eval kit has several unpopulated PCB pads to

help facilitate the user in customizing the board for their

application.

The LTC7063 driver has a powerful 0.8Ωpull-down and

1.5Ωpull-up MOSFET drivers driving two 150V N-channel

MOSFETs. The gate drivers on the LTC7063 are capable

of driving MOSFETs with different ground references;

however, this eval kit has these ground references

committed.

Design files for this circuit board are available.

Performance Summary (TA= 25°C)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Logic Input Supply (VIN-LOGIC)

Power Input Supply (VIN-POWER)

150

Maximum Output Current

PWM Control Frequency

2,000+

kHz

Maximum PWM Control Voltage

5.5

Quick Start Procedure

The EVAL-LTC7063-AZ can be evaluated without connecting any additional components or a load. However, the user

may find adding two load resistors, as shown in Figure 1, provides a better means for evaluating. Alternatively, the user

can configure their own application circuit. Test with a resistor divider as a load:

1. Connect two 100Ωpower resistors to the SW node, as shown in Figure 1.

2. Apply VIN-POWER supply.

3. Apply VIN-LOGIC supply.

4. Apply a square-wave signal at the desired frequency to the PWM pin, as shown in Figure 1.

5. Ensure the JP1 jumper is set to “ENABLED”.

6. Monitor the BG, TG, and SW pins with a scope.

7. See Figure 2 for expected results with:

a. VIN-POWER = 40V

b. VIN-LOGIC = 10V

c. PWM input set at 5V peak at 1kHz

Evaluation Board User Guide

LTC7063-AZ

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Figure 1. EVAL-LTC7063-AZ Test Setup

Figure 2. Test Results

Evaluation Board User Guide

LTC7063-AZ

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Schematic

Revision History

REVISION

NUMBER

REVISION

DATE

DESCRIPTION

PAGES

CHANGED

6/23

Initial release

—

Evaluation Board User Guide

LTC7063-AZ

ASSUMED BY ANALOG DEVICES FOR ITS USE, NOR FOR ANY INFRINGEMENTS OF PATENTS OR OTHER RIGHTS OF THIRD PARTIES THAT

MAY RESULT FROM ITS USE. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE. NO LICENCE, EITHER EXPRESSED OR

IMPLIED, IS GRANTED UNDER ANY ADI PATENT RIGHT, COPYRIGHT, MASK WORK RIGHT, OR ANY OTHER ADI INTELLECTUAL PROPERTY

RIGHT RELATING TO ANY COMBINATION, MACHINE, OR PROCESS WHICH ADI PRODUCTS ALL INFORMATION CONTAINED HEREIN IS

PROVIDED “AS IS” WITHOUT REPRESENTATION OR WARRANTY. NO RESPONSIBILITY IS OR SERVICES ARE USED. TRADEMARKS AND

REGISTERED TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS.

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