ADP1621
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ADP1621

Constant-Frequency, Current-Mode Step-Up DC-to-DC Controller

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file View Data Sheet (Rev.D)
Documentation View All Documentation
SIMPLIS Models ADP1621 SIMPLIS Schematic Download 235.21KB LTspice ADP1621 - Step-Up (Boost) Regulators Download 2.35 KB
Part Models 1
1ku List Price Starting From $1.77
Features
  • 92% efficiency (no sense resistor required)
  • ±1.0% initial accuracy
  • IC supply voltage range: 2.9 V to 5.5 V
  • Power-input voltage as low as 1.0 V
  • Capable of high supply input voltage (>5.5 V) with an external NPN or a resistor
  • VIN UVLO and 35 mA shunt regulator
  • External slope compensation with 1 resistor
  • Programmable operating frequency (100 kHz to 1.5 MHz) with 1 resistor
  • Lossless current sensing for switch-node voltage <30 V
  • Resistor current sensing for switch-node voltage >30 V
  • Synchronizable to external clock
  • Current-mode operation for excellent line and load transient responses
Additional Details
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The ADP1621 is a fixed-frequency, pulse-width modulation (PWM), current-mode, step-up converter controller. It drives an external n-channel MOSFET to convert the input voltage to a higher output voltage. The ADP1621 can also be used to drive flyback, SEPIC, and forward converter topologies, either isolated or nonisolated.

The ADP1621 eliminates the use of a current-sense power resistor by measuring the voltage drop across the on resistance of the n-channel MOSFET. This technique, allowed up to a maximum voltage of 30 V at the switch node, maximizes efficiency and reduces cost. For switch-node voltages higher than 30 V or for more accurate current limiting, the CS pin can be connected to a current-sense resistor in the source of the MOSFET. The slope compensation is implemented by an external resistor, allowing a wide range of external components (inductors and MOSFETs), and can be chosen for various switching frequencies and input and output voltages.

The ADP1621 supply input voltage range is 2.9 V to 5.5 V, although higher input voltages are possible with the use of a small-signal NPN pass transistor or a single resistor. The voltage of the power input can be as low as 1 V for fuel cell applications. The switching frequency is set by an external resistor over a range of 100 kHz to 1.5 MHz and can be synchronized to an external clock by using the SDSN pin. The shutdown quiescent current is less than 10 μA. The ADP1621 has a thermal shutdown feature that shuts down the gate driver when the junction temperature reaches approximately 150°C. The internal soft start circuit limits inrush current at startup. The ADP1621 is available in the 10-lead MSOP lead-free package and is specified over the −40°C to +125°C junction temperature range.

Applications

  • APD bias
  • Portable electronic equipment
  • Isolated dc-to-dc converter
  • Step-up/step-down dc-to-dc converter
  • LED driver for laptop computer and navigation system
  • LCD backlighting
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file View Data Sheet (Rev.D)
Documentation View All Documentation
SIMPLIS Models ADP1621 SIMPLIS Schematic Download 235.21KB LTspice ADP1621 - Step-Up (Boost) Regulators Download 2.35 KB
Part Models 1
1ku List Price Starting From $1.77
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ADP1621

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Data Sheet

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UPDATED 12/18/2006
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ADP1621: Constant-Frequency, Current-Mode Step-Up DC/DC Controller Data Sheet (Rev.D)

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Evaluation Design File

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UPDATED 11/08/2006
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EVAL-ADP1621: Evaluation Board for Constant-Frequency, Current-Mode, Step-Up, DC/DC Controller redirect icon

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Application Note

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UPDATED 08/01/2012
English
AN-1126: More Boost with Less Stress: the SEPIC Multiplied Boost Converter redirect icon

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UPDATED 09/15/2020
English
AN-1316: Generating Multiple Isolated Bias Rails for IGBT Motor Drives with Flyback, SEPIC, and Ćuk Combination redirect icon

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UPDATED 09/15/2020
Chinese
AN-1316:利用反激、SEPIC和Ćuk组合为IGBT电机驱动产生多个隔离偏置轨 redirect icon

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UPDATED 09/15/2020
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AN-1316: フライバック、SEPIC、Čuk の組み合わせによる IGBT モーター・ドライブ用の複数の絶縁バイアス・レールの生成 redirect icon

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Documentation

Documentation

Technical Documents 4
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Data Sheet 1

ADP1621: Constant-Frequency, Current-Mode Step-Up DC/DC Controller Data Sheet (Rev.D)

Application Note 2

AN-1126: More Boost with Less Stress: the SEPIC Multiplied Boost Converter
AN-1316: Generating Multiple Isolated Bias Rails for IGBT Motor Drives with Flyback, SEPIC, and Ćuk Combination

Evaluation Design File 1

EVAL-ADP1621: Evaluation Board for Constant-Frequency, Current-Mode, Step-Up, DC/DC Controller

Circuit Note 1

CN0328: Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit

Power Reference Designs 3

ADP1621 28V Boost
ADP1621 ±15V Dual-Output SEPIC-Cuk
PRD1205: Quasi-Isolated Flyback

Video

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2015-09-28

04:54

Overview of Isolated Inverter Platform for Motor Control Design

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP1621ARMZ-R7 10-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Product Lifecycle

PCN

Mar 22, 2021

- 21_0001

Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP

ADP1621ARMZ-R7

PRODUCTION

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PCN21_0001_Form

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Material_Report

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Other

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Qualification Results Summary

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Oct 30, 2017

- 15_0176

Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines

ADP1621ARMZ-R7

PRODUCTION

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PCN15_0176_Form

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Material_Report

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Detailed Change Description

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Qualification Results Summary

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Qualification Results Summary

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Oct 7, 2015

- 15_0199

ADP1621 Datasheet Specification Change

ADP1621ARMZ-R7

PRODUCTION

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PCN15_0199_Form

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Material_Report

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May 15, 2012

- 10_0006

Halogen Free Material Change for mini SOIC Products

ADP1621ARMZ-R7

PRODUCTION

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PCN10_0006_Form

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Material_Report

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Qualification Report Summary

Qualification Report Summary

Dec 21, 2009

- 06_0159

Qualification of 8" S6 wafer fab process at Analog Devices, Limerick, Ireland.

ADP1621ARMZ-R7

PRODUCTION

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Material_Report

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PCN06_0159_Form

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RQR03910S

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PCN

Mar 22, 2021

- 21_0001

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Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP

ADP1621ARMZ-R7

PRODUCTION

pdf

PCN21_0001_Form

external-icon

xls

Material_Report

Download

pdf

Other

external-icon

pdf

Qualification Results Summary

external-icon
Oct 30, 2017

- 15_0176

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Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines

ADP1621ARMZ-R7

PRODUCTION

pdf

PCN15_0176_Form

external-icon

xls

Material_Report

Download
Detailed Change Description

pdf

Qualification Results Summary

external-icon

pdf

Qualification Results Summary

external-icon
Oct 7, 2015

- 15_0199

arrow down

ADP1621 Datasheet Specification Change

ADP1621ARMZ-R7

PRODUCTION

pdf

PCN15_0199_Form

external-icon

xls

Material_Report

Download
May 15, 2012

- 10_0006

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Halogen Free Material Change for mini SOIC Products

ADP1621ARMZ-R7

PRODUCTION

pdf

PCN10_0006_Form

external-icon

xls

Material_Report

Download
Qualification Report Summary
Qualification Report Summary
Dec 21, 2009

- 06_0159

arrow down

Qualification of 8" S6 wafer fab process at Analog Devices, Limerick, Ireland.

ADP1621ARMZ-R7

PRODUCTION

xls

Material_Report

Download

pdf

PCN06_0159_Form

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pdf

RQR03910S

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

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EVAL-ADP1621

ADP1621 Evaluation Board

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EVAL-ADP1621

ADP1621 Evaluation Board

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EVAL-ADP1621
ADP1621 Evaluation Board
Buy Now View Details

Product Detail

The input range for the demo board is 3.0 V to 3.6 V, and the output voltage is 5 V with a maximum load of 2 A. The design is done in a bootstrapped configuration as shown in Figure 13. The switching frequency fSW is set to 600 kHz with a 36 kΩ resistor. This design is done in all multilayer ceramic capacitors (MLCC), although other types of capacitors can be used, such as the aluminum polymer or aluminum electrolytic capacitors. The PCB is laid out in such a way that the user can easily modify the demo board for other input and output configurations.

Resources

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EVAL-ADP1621: Evaluation Board for Constant-Frequency, Current-Mode, Step-Up, DC/DC Controller Download

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FMCMOTCON2

OBSOLETE: AD-FMCMOTCON2-EBZ Evaluation Board

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FMCMOTCON2

OBSOLETE: AD-FMCMOTCON2-EBZ Evaluation Board

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FMCMOTCON2
OBSOLETE: AD-FMCMOTCON2-EBZ Evaluation Board

Features and Benefits

This evaluation board is obsolete and no longer recommended.


The FMCMOTCON2 evaluation kit enables users to:

  • Model and implement motor control algorithms rapidly for high performance servo systems, incorporating system modelling and design concepts using Mathworks model based design
  • Reduce time needed to move a motor control system from concept to production, by providing a prototyping system to verify the hardware and control algorithms before moving to production stage.
Buy Now View Details

Product Detail

This evaluation board is obsolete and no longer recommended.


The AD-FMCMOTCON2-EBZ is a complete high performance servo system on an FPGA Mezzanine Card (FMC) board, the purpose of which is to provide a complete motor drive system demonstrating efficient and high dynamic control of three phase PMSM and induction motors up to 48V and 20A.

Two motors can be driven at the same time, each motor having its separate power supply. The system incorporates high quality power sources; reliable power, control, and feedback signals isolation; accurate measurement of motor current & voltage signals; high speed interfaces for control signals to allow fast controller response; industrial Ethernet high speed interfaces; single ended Hall, differential Hall, encoder and resolver interfaces; digital position sensors interface; flexible control with a FPGA/SoC interface.

The kit consists of two boards: a controller board and a drive board. An optional AD-DYNO2-EBZ dynamometer can also be purchased through Avnet and is intended to be an extension of the drive system.

Controller Board

  • Digital board for interfacing with the low and high voltage drive boards
  • Compatible with all Xilinx FPGA platforms with FMC LPC or HPC connectors
  • FMC signals voltage adaptation interface for seamless operation on all FMC voltage levels
  • Fully isolated digital control and feedback signals
  • Isolated Xilinx XADC interface
  • 2 x Gbit Ethernet PHYs for high speed industrial communication, with 3rd party EtherCAT support
  • Single ended Hall, Differential Hall, Encoder, Resolver interfaces
  • Digital sensors interfaces
    • EnDat
    • BISS Interface

Drive Board

  • Drives motors up to 48V @ 20A
  • Drives 2 motors simultaneously
  • High frequency drive stage implemented with ADI isolated gate drivers
  • Supported motor types
    BLDC
    PMSM
    Brushed DC
    Stepper (bipolar / unipolar)
  • Integrated over current protection
  • Reverse voltage protection
  • Current and Voltage measurement using isolated ADCs
  • BEMF zero cross detection for sensorless control of PMSM or BLDC motors
  • Separate voltage supplies for the 2 motors so that the motors don't influence each other

Dynamometer System with Embedded Control

  • Two BLDC motors connected by a rigid couple in a dyno setup, which can be used to test real-time motor control performance.
  • One BLDC motor acts as an electronically adjustable load and is driven by the embedded control system. This motor can be directly connected to the FMC motor drive to get complex / active loads. The load can be driven also by the AD-FMCMOTCON2-EBZ to implement dynamic load profiles.
  • The other BLDC motor is driven by the FMC motor drive.
  • Measurement and display of load motor current
  • Measurement and display of load motor speed
  • External control using Analog Discovery and MathWorks Instrumentation Control Toolbox

Software:

Example reference designs showing how to use the platform with Xilinx® FPGAs or SoCs and high performance control algorithms from Mathworks® are provided together with the hardware. Information on the FMC board, and how to use it, the design package that surrounds it, and the software which can make it work, can be found by clicking the software link.

Resources

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EVAL-FMCMOTCON2 User Guide reference design link

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Software

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EVAL-FMCMOTCON2 Evaluation Software reference design link

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ISOLATED INVERTER PLATFORM

Isolated Inverter Platform Evaluation Board

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ISOLATED INVERTER PLATFORM

Isolated Inverter Platform Evaluation Board

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ISOLATED INVERTER PLATFORM
Isolated Inverter Platform Evaluation Board

Features and Benefits

The isolated inverter platform enables users to:

  • Evaluate ADI’s new, fully featured isolated gate drivers (ADuM4135) technology in a system-level application at realistic dc bus voltages (EV-MCS-ISOINVEP-Z)
  • Evaluate ADI simple dual isolated gate driver (ADuM4223) technology in a system-level application at realistic dc bus voltages (EV-MCS-ISOINV-Z)
  • Evaluate ADI sigma-delta modulators (AD7403) for voltage and current measurement or feedback in a realistic switching environment
  • Develop motor control algorithms utilizing ADI isolated sigma-delta current and voltage feedback
  • Test bench their motor control software/firmware with a flexible hardware development platform
  • Evaluate an elegant gate driver bias supply solution using the ADP1621

Buy Now View Details

Product Detail

The Isolated Inverter Platform is a rapid development system for hardware and/or software development in three-phase inverter applications, with a particular focus on motor control. Flexible evaluation of ADI isolation technology in a highly configurable system-oriented platform is enabled with multiple test-points, and connectivity options. An easy-plug connector allows controller connection to an ADSP-CM408 processor evaluation board, while additional 0.1” headers enable alternative connectivity to other processor or FPGA platforms. The benefits of ADI isolated sigma-delta converters for voltage and current measurement, isolated gate drivers, and power controllers can be explored in a full system application at dc bus levels up to 800V. There are 2 models available, isolated inverter platform, and isolated inverter platform with full featured IGBT drivers.

Solution Overview
The isolated inverter platform and isolated inverter platform with full featured IGBT drivers offer a power board that runs from a dc input and provides a three-phase variable frequency, variable voltage, and variable dead-time PWM output to a three-phase motor or load. The inverter is provided as an open loop platform, but feedback signals are provided to enable the application developer to close the control loop. For the isolated inverter platform (EV-MCS-ISOINV-Z), two isolated current,phase to phase and dc bus voltage feedback signals are provided to the control side of the board via sigma-delta modulators, and these can be used for development of control algorithms. The inverter is made up of a three-phase six-IGBT bridge, with the IGBTs rated at 1200V and driven by three dual isolated gate drivers (ADuM4223). For the isolated inverter platform with full featured IGBT drivers (EV-MCS-ISOINVEP-Z), three isolated phase current and dc bus voltage feedback signals are provided to the control side of the board via sigma-delta modulators, and these can be used for development of control algorithms. The inverter is made up of a three-phase six-IGBT bridge, with the IGBTs rated at 1200V and driven by six individual isolated gate drivers (ADuM4135) with desaturation protection and Miller clamp. For both platforms, a DC – rather than AC- input is provided to allow flexibility on the dc bus voltage level (rather than it being limited to the ac line peak).

The board is designed to work from a DC supply in the range 24Vdc-800Vdc.. The power board is rated up to 2kVA without forced air cooling. Additional power throughput can be achieved with fan cooling added. A series connected diode implements a half-wave rectifier at the input, so if needed, the power board can be driven from an AC supply. However output power is limited in this case. If a full AC front-end is required, the inverter platform can be utilized in conjunction with the ADP1047 evaluation board up to 300W, or the ADP1048 evaluation board up to 600W. An isolated I2C interface is provided on the inverter board so that the ADP104x evaluation board can be easily controlled by the same processor/FPGA interface. The inverter kit has the hardware and software required to spin a three-phase motor under open loop speed control in conjunction with an ADSP-CM408 EZ Kit. The demo software is provided as an IAR Embedded Workbench C project or an executable file which can be flashed to the ADSP-CM408 processor using the ADI serial boot-loader utility. A .NET-based graphical user interface (GUI) is provided to enable motor start-stop, open loop Volts/Hertz speed control, and data visualization.

Kit Contents

Hardware:
  • Isolated Inverter Board, 24-800Vdc, 2Kva (2 Versions)
  • Adapter board for connection to EZkit
  • USB to serial adapter for using GUI
  • SOLD SEPERATELY: ADI ADSP-CM408 EZ Kit

 Software:
  • IAR Embedded Workbench C project
  • Executable Demo Application
  • .NET-based Graphical User Interface (GUI)


Note: 

Software

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Getting Started with the EV-MCS-ISOINV-Z Isolated Inverter Platform reference design link

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Getting Started with the EV-MCS-ISOINVEP-Z Isolated Inverter Platform reference design link

Evaluation Kits3

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EVAL-ADP1621

ADP1621 Evaluation Board
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FMCMOTCON2

OBSOLETE: AD-FMCMOTCON2-EBZ Evaluation Board
evaluation kit item images

ISOLATED INVERTER PLATFORM

Isolated Inverter Platform Evaluation Board
Tools & Simulations

Tools & Simulations 5

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

spice tool Lt Spice

ADP1621 - Step-Up (Boost) Regulators Download

2.35 K
Reference Designs

Reference Designs 3

CN0328 Top Level Block Diagram

cn0328

Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit

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cn0328

Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit

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Circuits from the lab

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Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit

Features and Benefits

  • Complete HART compliant solution for 4mA to 20mA or voltage output 
  • Fully Isolated 
  • Four multiplexed outputs
View Detailed Reference Design external link

Part Used 6

AD5755-1 reference design link

AD5700-1 reference design link

ADCMP356 reference design link

ADG759 reference design link

ADP1621 reference design link

ADR02 reference design link

Design & Integration Tools

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CN0328 Design & Integration Files link icon

2.32 M

Portable Radio Reference Design Block Diagram

CN0412

ADRV-PACKRF Robust Portable Radio Design

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CN0412

ADRV-PACKRF Robust Portable Radio Design

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CN0412

Circuits from the lab

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ADRV-PACKRF Robust Portable Radio Design

Features and Benefits

  • Two Complete Radios
    • 2-Tx, 2-Rx, 2-Observation
  • Multiple Power Options
    • Wall Connected, Power over Ethernet, Battery
  • Built in IMU and GPS for tracking
  • Fully configurable and customizable software
View Detailed Reference Design external link

Part Used 13

ADM1066 reference design link

ADP5135 reference design link

ADP2386 reference design link

AD9361 reference design link

ADP2323 reference design link

ADP1621 reference design link

LTC3899 reference design link

LTC4269-1 reference design link

LTC4415 reference design link

ADIS16460 reference design link

ADP5061 reference design link

LTC2955 reference design link

LTC4417 reference design link

Design & Integration Tools

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CN0412-DesignSupport.zip link icon

13.25 M

Simplified Schematic of Flyback Power Supply Circuit

CN0342

Flyback Power Supply Using a High Stability Isolated Error Amplifier

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CN0342

Flyback Power Supply Using a High Stability Isolated Error Amplifier

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CN0342

Circuits from the lab

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Flyback Power Supply Using a High Stability Isolated Error Amplifier

Features and Benefits

  • Isolated flyback power supply
  • Linear isolated error amplifier
  • Linear isolated error amplifier
  • ADUM3190 is functionally equivalent to ADUM4190.
View Detailed Reference Design external link

Part Used 3

ADP1621 reference design link

ADUM3190 reference design link

ADUM4190 reference design link

Design & Integration Tools

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ZIP

CN0342-DesignSupport.zip link icon

328.1 K

Reference Designs3

CN0328 Top Level Block Diagram

cn0328

Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit

Portable Radio Reference Design Block Diagram

CN0412

ADRV-PACKRF Robust Portable Radio Design

Simplified Schematic of Flyback Power Supply Circuit

CN0342

Flyback Power Supply Using a High Stability Isolated Error Amplifier

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