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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.
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).
CAUTION
PARTS LIST
Part #
HS20
EVAL30
MS06
TW07
Use the supplied thermal washers or thermal
grease between the power amplifier and the
heat sink.
Description
Heatsink
PC Board
Mating Socket
Thermal Washer
Quantity
1
1
1
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
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
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