Analog Devices ADP1071-1EVALZ User Manual
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Analog Devices ADP1071-1EVALZ User Manual

Analog Devices ADP1071-1EVALZ User Manual

Evaluating the adp1071-1 isolated synchronous flyback controller with integrated icoupler
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Evaluating the

FEATURES

Full support evaluation kit for the
15 W multioutput flyback topology
+24 V, +5.5 V, and −15 V output voltage (V
Light load mode (LLM) operation
Dedicated internal primary and secondary side MOSFET
drivers
External reference signal tracking
Precision enabled undervoltage lockout with hysteresis
Short-circuit, output overvoltage, cycle by cycle input
overcurrent, and overtemperature protection
Frequency synchronization
Soft start and soft stop functionality

EVALUATION KIT CONTENTS

ADP1071-1EVALZ

EQUIPMENT NEEDED

DC power supply capable of 18 V
current capability of the supply
Electronic load capable of 15 W, 0 V to 30 V rating capability
of the load
Oscilloscope capable of ≥500 MHz bandwidth, 2 channels to
4 channels
Precision digital multimeter (HP 34401 or equivalent)

GENERAL DESCRIPTION

The ADP1071-1EVALZ allows users to evaluate the
in flyback topology.
The evaluation board is set up to act as an isolated power supply
solution that incorporates three output voltages (+5.5 V, +24 V,
and −15 V) at a total rated power of 15 W. The evaluation board
also provides 5 kV isolation in compact form factor, making it
suitable for industrial applications, which usually have a variety
of voltage rails.
Complete information about the
ADP1071-1/ADP1071-2
data sheet. Consult the ADP1071-1/
ADP1071-2
data sheet in conjunction with this user guide when
using the evaluation board.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
ADP1071-1
Isolated Synchronous Flyback Controller
with Integrated iCoupler
ADP1071-1
)
DC
to 32 V
, 1 A output
DC
DC
ADP1071-1
ADP1071-1
is available in the
Rev. 0 | Page 1 of 13
ADP1071-1EVALZ

DIGITAL PICTURES OF THE EVALUATION BOARD

Figure 1. ADP1071-1EVALZ Top
Figure 2. ADP1071-1EVALZ Bottom
User Guide
UG-1384

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Summary of Contents for Analog Devices ADP1071-1EVALZ

  • Page 1: Features

    Oscilloscope capable of ≥500 MHz bandwidth, 2 channels to 4 channels Precision digital multimeter (HP 34401 or equivalent) GENERAL DESCRIPTION The ADP1071-1EVALZ allows users to evaluate the ADP1071-1 in flyback topology. The evaluation board is set up to act as an isolated power supply Figure 2.

  • Page 2: Table Of Contents

    Features ....................1 Powering Up...................4 Evaluation Kit Contents ..............1 ADP1071-1EVALZ Dimensions ..........4 Equipment Needed ................1 Evaluating the ADP1071-1EVALZ Board ........5 General Description ................. 1 Startup .....................5 Digital Pictures of the Evaluation Board ........1 Cross Regulation ................5 Revision History ................2 Control Loop Gain ................6...

  • Page 3: Evaluation Board Overview

    TO 36V POWER TRAIN OVERVIEW OUTPUT WINDING 66kHz 24V AND 400mA The ADP1071-1EVALZ is shown in Figure 1 and Figure 2. The OUTPUT WINDING 5.5V AND 500mA circuit components on the ADP1071-1EVALZ are described as follows: 10V AND 20mA...

  • Page 4: Evaluation Board Hardware

    Table 2. Evaluation Board Dimensions least an AWG22 wire to monitor the primary current. Dimension Value (Inches) POWERING UP Length To power up the ADP1071-1EVALZ, use the following steps: Width 1.25 Height 0.75 (excluding standoffs) Connect a dc source (voltage range of 18 V...

  • Page 5: Evaluating The Adp1071-1Evalz Board

    ADP1071-1EVALZ User Guide UG-1384 EVALUATING THE ADP1071-1EVALZ BOARD Test points on the evaluation board allow the user to monitor according to the regulation requirement and load rating to output signals. The following sections provide descriptions of achieve the most optimal cross regulation among the three the typical results when evaluating the device in a multiflyback outputs.

  • Page 6: Control Loop Gain

    UG-1384 ADP1071-1EVALZ User Guide 24V LOAD STEP 0mA TO 400mA –15V +5.5V AT NO +24V AT NO LOAD LOAD 500mA CH2 1.00V A CH1 135mA 20.0V M10.0µs A CH1 75.6V 5.00V CH4 5.00V Ω 0.0ns CH4 2.0A Figure 9. Cross Regulation with Load Step at a +24 V Rail When +5.5 V and Figure 11.

  • Page 7: Efficiency

    ADP1071-1EVALZ User Guide UG-1384 THERMAL PERFORMANCE Figure 15 shows the typical thermal image of the evaluation board at different operating conditions. 10.0V M10.0µs A CH1 37.6V CH4 2.0A Ω 100.00ns Figure 14. Peak Diode Voltage Stress on a −15 V Rail at 32 V...

  • Page 8: Evaluation Board Schematic And Artwork

    UG-1384 ADP1071-1EVALZ User Guide EVALUATION BOARD SCHEMATIC AND ARTWORK Figure 16. ADP1071-1EVALZ Evaluation Board Schematic Rev. 0 | Page 8 of 13...
  • Page 9 ADP1071-1EVALZ User Guide UG-1384 Figure 19. Silkscreen Bottom Figure 17. Board Outline Figure 20. PCB Layout, Top Layer Figure 18. Silkscreen Top Rev. 0 | Page 9 of 13...
  • Page 10 UG-1384 ADP1071-1EVALZ User Guide Figure 21. PCB Layout, Layer 2 Figure 23. PCB Layout, Layer 4 Figure 22. PCB Layout, Layer 3 Rev. 0 | Page 10 of 13...

  • Page 11: Ordering Information

    ADP1071-1EVALZ User Guide UG-1384 ORDERING INFORMATION BILL OF MATERIALS Table 4. Reference Manufacturer Part Quantity Description Designator Manufacturer Number 2.2 μF, 50 V, X5R, 0603, capacitor Murata GRT188R61H225KE13D SMD/SMT, 10 μF, 35 V, X7R, ±10%, 1206, capacitors Taiyo Yuden GMK316AB7106KL-TR Ceramic capacitors, 10 μF, 50 V, X7R, 1210...
  • Page 12 UG-1384 ADP1071-1EVALZ User Guide Reference Manufacturer Part Quantity Description Designator Manufacturer Number SMD resistors, 10 kΩ, 0.25 W, 5%, 1206 R53, R54 Panasonic ERJ-8GEYJ103V SMD resistor, 10 kΩ, 0.25 W, 5%, 1206 Panasonic ERJ-8GEYJ103V SMD resistor, 46.4 kΩ, 1/8 W, 1%, 0603 SMD resistors, 4.7 Ω, 1/5 W, 0.1%, 0603...
  • Page 13 By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement.

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