Peregrine Semiconductor Corporation UltraCMOS PE22100 User manual

DOC84193-1 – (06/2017) EVK User’s Manual
www.psemi.com
PE22100 Evaluation Kit (EVK) User’s Manual
UltraCMOS® Isolated Transformer Driver
PE22100
Evaluation Kit

PE22100
EVK User’s Manual
Page ii DOC84193-1 – (06/2017)
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Copyright and Trademarks
©2017, Peregrine Semiconductor Corporation. All rights reserved. The Peregrine name, logo, UTSi and
UltraCMOS are registered trademarks and HaRP, MultiSwitch and DuNE are trademarks of Peregrine Semicon-
ductor Corp. All other trademarks mentioned herein are the property of their respective owners.
Disclaimers
The information in this document is believed to be reliable. However, Peregrine assumes no liability for the use
of this information. Use shall be entirely at the user’s own risk. No patent rights or licenses to any circuits
described in this document are implied or granted to any third party. Peregrine’s products are not designed or
intended for use in devices or systems intended for surgical implant, or in other applications intended to support
or sustain life, or in any application in which the failure of the Peregrine product could create a situation in which
personal injury or death might occur. Peregrine assumes no liability for damages, including consequential or
incidental damages, arising out of the use of its products in such applications.
Patent Statement
Peregrine products are protected under one or more of the following U.S. patents: patents.psemi.com
Sales Contact
For additional information, contact Sales at [email protected].
Corporate Headquarters
9369 Carroll Park Drive, San Diego, CA, 92121
858-731-9400

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PE22100
UltraCMOS® Isolated Transformer Driver
Table of Contents
Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1
Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Application Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Evaluation Kit Contents and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Hardware Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Evaluation Board Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3
Evaluation Board Assembly Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
Block Diagram and Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Quick Start Guide - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -7
Quick Start Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
Evaluation Board Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Evaluation Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hardware Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Technical Resources - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -11
Technical Resources - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11

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EVK User’s Manual
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PE22100
UltraCMOS® Isolated Transformer Driver
Introduction
Introduction
The PE22100 is a push pull driver for driving small transformers for isolated power supply applications. The
PE22100 drives the primary of a center-tapped transformer such as the 782100 family from Murata from a 3.0V
or a 5V supply to deliver an isolated power supply.
The device consists of an on-chip oscillator whose frequency is set by an external capacitor. The oscillator
output is divided by two in frequency to create anti-phase clock signals that drive two power switches. The
device also contains an internal current limit and thermal cutout. The PE22100 is available in a 2 x 2 x 0.5 mm
QFN package and is specified for operation from –40° to +125°C.
The PE22100 evaluation board allows the user to evaluate the PE22100 transformer driver IC in a typical
operating circuit.
The PE22100 is an isolated transformer driver capable of providing up to 1W of isolated power via an external
transformer.
The PE22100 evaluation kit (EVK) user’s manual includes the evaluation board schematic, circuit description,
quick start guide, and measurement results.
Application Support
For any technical inquiries regarding the evaluation kit or software, please visit applications support at
www.psemi.com (fastest response) or call [phone].
Evaluation Kit Contents and Requirements
Kit Contents
The PE22100 EVK includes the following hardware required to evaluate the transformer driver.
Table 1 • PE22100 Evaluation Kit Contents
Quality Description
1 PE22100 transformer driver evaluation board assembly (PRT-66476)

PE22100
UltraCMOS® Isolated Transformer Driver
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Hardware Requirements
In order to evaluate the performance of the evaluation board, the following equipment is required:
• 5V DC power supply
• Digital voltmeter
• Test leads
Safety Precautions
Caution: The PE22100 transformer driver EVK contains components that might be damaged by
exposure to voltages in excess of the specified voltage, including voltages produced by electrostatic
discharges. Handle the board in accordance with procedures for handling static-sensitive components.
Avoid applying excessive voltages to the power supply terminals or signal inputs or outputs.
Caution: PCB surface can become hot. Contact may cause burns do not touch!

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2
PE22100
UltraCMOS® Isolated Transformer Driver
Evaluation Board Assembly
Evaluation Board Assembly Overview
The evaluation board (EVB) is assembled with a PE22100 transformer driver and a Murata 782100/55JVC
transformer. The device is intended to be evaluated using the test pins shown in Figure 1.
Figure 1 • PE22100 Evaluation Board Assembly
Measure
VOUT
PE22100
VIN Supply
+5V
Reserved for
production
testing purposes
only.

PE22100
UltraCMOS® Isolated Transformer Driver
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Block Diagram and Schematic
The evaluation board block diagram and schematic are shown in Figure 2 and Figure 3.
Figure 2 • PE22100 Evaluation Board Block Diagram
RSET
LDO
VREG
470 nF
100 pF 82 KΩ
EN
CSET
GND GND
SGND
OUTB
OUTA 1:2.2 MBR0520
10 μF 0.1 μF
MBR0520
3.3V
3.3V
Isolated
6.8V
100 nF
VDD
OSCILLATOR
PE22100
Figure 3 • PE22100 Evaluation Board Schematic
+5V
TP7
TP6
Terminal
Terminal
VOUT
ISO GND
C3
10 μF
0805
C4
10 μF
0805
MBR0540
SOD-123
MBR0540
SOD-123
D1
D2
T1
78253/55MVC
ISO GND ISO GND
J1
TSW-102-07-G-S
+5V
1
2
J2
TSW-102-07-G-S
+5V
1
2
ISO GND
C1
10 μF
0805
C2
10 μF
0805
U1
PE22100
0.47 μF
0402
C5
82K
0402
R1
Terminal
TP5
TP2
Terminal
TP4
Terminal
TP1
Terminal
TP3
RSET
VREG
GND
+5V
5
6
100 pF
0402
C6
3
7
2 8
11
13
12
1
10
9
1
2
3
+5V
P1
PC
P2 S2
SC
S1
6
5
4
A
A
K
K
VREG
Terminal
EN
4EN
RSET
CSET
OUT B
OUT B
GND SGND SGND GND
OUT A
OUT A
VDD

PE22100
UltraCMOS®Isolated
DOC-84193-1 – (06/2017) Page 5
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Circuit Description
The evaluation board is configured with a PE22100 transformer driver (U1) and a 782100/55JVC transformer
(T1) in a push-pull configuration.The output from this transformer is then rectified via D1 and D2 to produce an
isolated DC output.
The PE22100 features an internal regulator that supplies the chip will output a nominal 2.6V on C5.
An internal oscillator is generated in the chip and is visible as a triangle wave on C6.

PE22100
UltraCMOS® Isolated Transformer Driver
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