LTC7106
Info : RECOMMENDED FOR NEW DESIGNS
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LTC7106

A 7-Bit Current DAC with PMBus Interface

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Part Models 4
1ku List Price Starting From $1.53
Features
  • ±0.8% IDAC Positive Output Current Accuracy (Over Temp)
  • ±1.5% IDAC Negative Output Current Accuracy (Over Temp)
  • PMBus/I2C Compliant Serial Interface
  • Input Voltage Range: 2.5V to 5.5V
  • High Impedance at IDAC Output When Disabled
  • Wide IDAC Operation Voltage (0.4V to 2.0V)
  • 7-Bit Programmable DAC Output Current for DC/DC VOUT Control
  • Wide Range IDAC Output Current: ±16μA to ±256μA
  • Programmable Slew Rate: 500ns ~ 3ms per Bit
  • Available in a 10-Lead (3mm × 2mm) DFN Package
Additional Details
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The LTC7106 is a precision, PMBus controlled, bidirectional current digital-to-analog converter that adjusts the output voltage of any conventional VFB referenced regulator. The LTC7106 can work with the vast majority of power management controllers or regulators to enable digital control of the output voltage. Internal power-on reset circuitry keeps the DAC output current at zero (high impedance IDAC) until a valid write takes place. Features include a range bit for easy interfacing to almost any impedance resistor divider, and an open-drain GPO output for controlling the Run or Enable pin of the DC/DC regulator. For most applications, the current DAC error is significantly attenuated with proper design. See more detail about VOUT accuracy in the Applications Information section of this data sheet. The LTC7106 is supported by the ADI LTpowerPlay® development tool with graphical user interface (GUI).

Applications

  • General Purpose Power Systems
  • Telecom Systems
  • Industrial Applications
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file View Data Sheet (Rev.A)
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Part Models 4
1ku List Price Starting From $1.53
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LTC7106

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Data Sheet

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UPDATED 12/01/2017
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LTC7106: A 7-Bit Current DAC with PMBus Interface Data Sheet (Rev.A)

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UPDATED 02/01/2018
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LTC7106: PMBusインタフェースを備えた 7ビット電流D/Aコンバータ データシート

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User Guide

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UPDATED 07/09/2019
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DC2830A - Demo Manual (Rev.0) redirect icon

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UPDATED 02/08/2018
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DC2620A - Demo Board Manual (Rev.B) redirect icon

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DC2830A - Design File redirect icon

4.4 M

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Informational

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UPDATED 02/12/2018
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Documentation

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
LTC7106EDDB#TRMPBF 10-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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LTC7106EDDB#TRPBF 10-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC7106IDDB#TRMPBF 10-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC7106IDDB#TRPBF 10-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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Mar 18, 2020

- 20_0151

LTC7106 DIE REVISION

LTC7106EDDB#TRMPBF

PRODUCTION

LTC7106EDDB#TRPBF

PRODUCTION

LTC7106IDDB#TRMPBF

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LTC7106IDDB#TRPBF

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LTC7106 DIE REVISION

LTC7106EDDB#TRMPBF

PRODUCTION

LTC7106EDDB#TRPBF

PRODUCTION

LTC7106IDDB#TRMPBF

PRODUCTION

LTC7106IDDB#TRPBF

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PCN20_0151_Form

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Software & Part Ecosystem

Parts Product Life Cycle Description

Digital Power System Managers1
LTC2975
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RECOMMENDED FOR NEW DESIGNS

4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

Evaluation Kits 2

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DC2830A

LTC7106 and LTM4636 Demo Board | 7-Bit DAC with PMBus Controlled Step-Down μModule Regulator

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DC2830A

LTC7106 and LTM4636 Demo Board | 7-Bit DAC with PMBus Controlled Step-Down μModule Regulator

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DC2830A
LTC7106 and LTM4636 Demo Board | 7-Bit DAC with PMBus Controlled Step-Down μModule Regulator
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Product Detail

Demonstration circuit 2830A features the LTM4636EY, a 40A high efficiency, switch mode step-down µModule® regulator which is controlled by the LTC7106EDDB, a precision, bidirectional, 7-Bit current DAC with PMBus interface. The LTC7106 is used to adjust the output voltage of the LTM4636 by way of the PMBus. The LTM4636’s input voltage range is from 4.7V to 15V and the output voltage range is from 0.6V to 3.3V. De-rating is necessary for certain VIN, VOUT, frequency and thermal conditions. The LTC7106 requires an input voltage from 2.5V to 5.5V and on DC2830A it’s powered directly from the DC1613A dongle. The LTC7106 provides three ranges of IDAC output current: Nominal Range (–64µA to 63µA), Range High (–256µA to 252µA) and Range Low (–16µA to 15.75µA). The nominal range is optimized with the highest accuracy. It is recommended that users design the resistor divider using the nominal range of the IDAC setting.

To explore the power system management features of the LTC7106, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus Dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly, view IDAC current value and fault status.

The LTM4636 and LTC7106 data sheets must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2830A.

Resources

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PDF

DC2830A - Schematic Download

35.08 K

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DC2830A - Demo Manual (Rev.0) Download

740.62 K

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DC2830A - Design File Download

4.4 M

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DC2620A

LTC7106 A 7-Bit Current DAC with Digital PMBus Interface

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DC2620A

LTC7106 A 7-Bit Current DAC with Digital PMBus Interface

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DC2620A
LTC7106 A 7-Bit Current DAC with Digital PMBus Interface
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Product Detail

Demonstration circuit 2620A-A uses the LTC7106, a precision, bidirectional, 7-Bit current DAC with PMBus interface and can be used to adjust the output voltage of any conventional VFB referenced regulator. The LTC7106 can work with the vast majority of power management controllers, regulators or modules to enable digital control of the output voltage.

The DC2620A-A requires input voltage range from 2.5V to 5.5V, which can be powered either by external supply or directly from the DC1613A dongle. The LTC7106 provides three ranges of IDAC output current: Nominal Range (–64µA to 63µA), Range High (–256µA to 252µA) and Range Low (–16µA to 15.75µA). Only the nominal range is optimized with the highest accuracy. It is recommended that users design the resistor divider using the nominal range of the IDAC setting.

To explore the power system management features of the parts, download the GUI software LTpowerPlay onto your PC and use ADI’s I2C/SMBus/PMBus Dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly, view IDAC current value and fault status.

Resources

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ZIP

DC2620A - Design Files Download

6.1 M

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DC2620A - Demo Board Manual (Rev.B) Download

1.00M

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DC2620A - Schematics Download

87.4 K

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Evaluation Kits2

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DC2830A

LTC7106 and LTM4636 Demo Board | 7-Bit DAC with PMBus Controlled Step-Down μModule Regulator
evaluation kit item images

DC2620A

LTC7106 A 7-Bit Current DAC with Digital PMBus Interface

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