APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

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INTRODUCTION

This easy-to-use kit provides a platform for the evaluation of

the PB51 high voltage power boosters. The PB51 is designed

most commonly in combination with a small signal, general

purpose op amp. However, they can also be used without a

driver amplifier. This kit can be used to analyze a multitude of

standard or proprietary circuit configurations.

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CAUTION

Use the supplied thermal washers or thermal

grease between the power amplifier and the

heat sink.

ASSEMBLY

1. On the silk screen side of the evaluation board, insert and

solder the MS06 mating socket in DUT holes 1-12. Be sure

each one is fully seated.

2. Solder components for your circuit. Be sure to incude proper

bypassing, required compensaton components and current

limit resistors. See the op amp data sheet for help in select-

ing these components.

3. Place the TW07 thermal washer on the heat sink over the

mounting hole for the DUT. Place a #6 screw through the

mounting hole and thread a #6 nut onto the screw at the back

of the heat sink. Do not tighten. Note that there are two sets

of mounting holes on the HS20. Holes on one edge allow

room between the DUT and evaluation board for the MS06

socket. The holes on the other edge are for direct through

hole mounting of the DUT to the evaluation board. It is rec-

ommended that you use the MS06.

4. Mount the DUT to the HS20 by sliding under the head of the

#6 screw and on top of the thermal washer. Tighten the nut

to the specified 8 to 10 in-lbs. (.9 to .13 N*M) do not over

torque.

5. Install leads of the DUT into the the MS06 on the evaluation

board. Use #6 self-tapping screws to secure the evalua-

tion board to the HS20 heatsink as shown in the assembly

diagram (Figure1).

PARTS LIST

Part #

Description

Quantity

HS20

Heatsink

1

EVAL30

PC Board

1

MS06

Mating Socket

1

TW07

Thermal Washer

1 package

BEFORE YOU GET STARTED

• All Apex amplifiers should be handled using proper ESD

precautions.

• Always use the heat sink and thermal washers included in

this kit.

• Always use adequate power supply bypassing.

• Do not change connections while the circuit is powered.

• Initially set all power supplies to the minimum operating levels

allowed in the device data sheet.

• Check for oscillations.

EQUIVALENT SCHEMATIC