DC1978A Digital Power System Managers by Analog Devices

Status: Production
Series: LTC2974
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC2974 is a 4-channel Power System Manager used to sequence, trim (servo), margin, supervise, manage faults, provide telemetry and create fault logs. PMBus commands support power supply sequencing, precision point-of-load voltage adjustment and margining. DACs use a proprietary soft-connect algorithm to minimize supply disturbances. Supervisory functions include over and under current, voltage and temperature threshold limits for four power supply output channels as well as over and under voltage threshold limits for a single power supply input channel. Programmable fault responses can disable the power supplies with optional retry after a fault is detected. Faults that disable a power supply can automatically trigger black box EEPROM storage of fault status and associated telemetry. An internal 16-bit ADC monitors four output voltages, four output currents, four external temperatures, one input voltage and die temperature. Output power is also calculated. A programmable watchdog timer monitors microprocessor activity for a stalled condition and resets the microprocessor if necessary. A single wire bus synchronizes power supplies across multiple LTC Power System Management (PSM) devices. Configuration EEPROM with ECC supports autonomous operation without additional software.

Where to Buy

Prices starting from US$225.98

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$235.40
8
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$225.98
-
Buy Now

Features

Sequence, Trim, Margin and Supervise Four Power Supplies
Manage Faults, Monitor Telemetry and Create Fault Logs
PMBus™ Compliant Command Set
Supported by LTpowerPlay® GUI
Margin or Trim Supplies to within 0.25% of Target
Fast OV/UV Supervisors Per Channel
Fast Output Current Supervisors Per Channel
Coordinate Sequencing and Fault Management Across Multiple LTC PSM Devices
Automatic Fault Logging to Internal EEPROM
Operate Autonomously without Additional Software
External Temperature and Input Voltage Supervisors
Accurate Monitoring of Four Output Voltages, Four Output Currents, Four External Temperatures, Input Voltage and Internal Die Temperature
I2C/SMBus Serial Interface
Can Be Powered from 3.3V, or 4.5V to 15V
Available in 64-Lead 9mm × 9mm QFN Package
AEC-Q100 Qualified for Automotive Applications

Alternative Descriptions

LTC2974 Demoboard Kit (include | Analog Devices
SEMICONDUCTOR DESIGNER KIT | Richardson RFPD


DC1978A Application Specific & Reference Design Kits by Linear Technology

DEMO BOARD, QUAD DIGITAL POWER SUPPLY

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Silicon Manufacturer Linear Technology
Silicon Core Number LTC2974
Kit Application Type Power Management
Application Sub Type Power Supply
RoHS Compliant NA

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DC1978A?

Additional datasheets, footprints and schematics for DC1978A are listed on our Part Details page. You can also find images and similar parts to DC1978A on this page.

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What category does DC1978A fall under?

The DC1978A is listed under Digital Power System Managers.

Can I view similar or alternative parts?

You can view similar parts to DC1978A when available in the Digital Power System Managers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the DC1978A you can contact the distributor directly for product support, shipping queries etc.

Is the DC1978A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for DC1978A have stock available?

Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for DC1978A.

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