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Analog Devices Inc. DC1740A-A
- Part No.:
- DC1740A-A
- Manufacturer:
- Analog Devices Inc.
- Package:
- Datasheet:
-
DC1740A-A.pdf
- Description:
- EVAL BOARD FOR LTC3880
- Quantity:
- Payment:
- Shipping:
Inventory:1,458
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Product details
Overview
DC1740A-A from Analog Devices is a dual-output PolyPhase® step-down DC/DC controller evaluation board for the LTC3880/LTC3880-1 digital power system management ICs. It supports 4.5V–24V input, delivers up to 15A on VOUT0 (3.3V) and 20A on VOUT1 (1.8V), features PMBus/I²C interface, ±0.5% output voltage accuracy, and integrated 16-bit ADC telemetry for VIN, IIN, VOUT, IOUT, and temperature monitoring - used in telecom and datacom power subsystem validation.
For engineers reviewing the DC1740A-A datasheet, DC1740A-A pinout, DC1740A-A application, or DC1740A-A equivalent, this board enables rapid characterization of digital power sequencing, margining, fault logging, and real-time telemetry readback using LTpowerPlay™ GUI - critical for high-reliability distributed power designs requiring AEC-Q100-compliant control architecture.
Technical Context
The DC1740A-A implements the LTC3880's dual-channel analog current-mode control loop with independent programmable soft-start, voltage/current limits, and phase synchronization across up to six phases. It integrates external MOSFET gate drivers (TG0/BG0, TG1/BG1), BOOST/INTVCC regulation, and precision current sensing via ISENSE+/- differential inputs with DCR or resistor-based sensing.
Telemetry is enabled through a PMBus-compliant I²C interface supporting full readback of input/output voltage/current, internal/external temperature (TSNS0/TSNS1), and fault status - all stored in internal EEPROM with ECC and logged to fault memory. The board supports both LTC3880 (integrated 5V INTVCC) and LTC3880-1 (external 5V EXTVCC) variants via jumper configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 24V - supports wide-range industrial and telecom supply rails without external pre-regulation. |
| VOUT0 / VOUT1 Range | 0.5V–4V / 0.5V–5.4V - covers core logic, FPGA, ASIC, and memory rail requirements with fine 12-bit DAC resolution. |
| Output Accuracy | ±0.5% over temperature - ensures stable voltage regulation under thermal stress in dense PCB layouts. |
| ADC Resolution | 16-bit for VOUT/IOUT, 10-bit for VIN/temperature - enables precise closed-loop digital servo control and telemetry trending. |
| Switching Frequency | 250kHz to 1MHz - adjustable via SYNC pin or RCONFIG resistors to optimize efficiency vs. size trade-offs. |
| PMBus Compliance | Fully compliant with PMBus v1.3 - allows interoperability with industry-standard power system managers and host controllers. |
| EEPROM Features | Internal EEPROM with ECC and fault logging - retains configuration and fault history across power cycles for diagnostics and traceability. |
Availability
DC1740A-A is available at Aetrix Electronics and suitable for telecom infrastructure, datacenter server power delivery, and automotive ADAS domain controller power validation requiring stable component supply, full digital telemetry access, and AEC-Q100-aligned design verification.
Supply support for DC1740A-A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The DC1740A-A belongs to Analog Devices' Power by Linear™ evaluation platform family, designed specifically to accelerate development and validation of digitally managed multi-rail power systems using LTC3880-series controllers.
FAQ
What is the primary function of the DC1740A-A evaluation board?
The DC1740A-A is an evaluation platform for the LTC3880/LTC3880-1 dual-output PolyPhase step-down controllers. It enables full characterization of digital power management features including PMBus-configurable voltage/current limits, sequencing, margining, telemetry readback, and fault logging - all implemented using the actual DC1740A-A hardware layout and component selection verified by Analog Devices.
Does the DC1740A-A support both LTC3880 and LTC3880-1 variants?
Yes, the DC1740A-A supports both the LTC3880 (with integrated 5V INTVCC regulator) and LTC3880-1 (requiring external 5V EXTVCC). Jumper settings on the DC1740A-A board allow hardware configuration to match either variant, ensuring accurate evaluation of each device's specific power architecture and startup behavior.
Can the DC1740A-A be used for AEC-Q100-compliant automotive power design validation?
Yes - the DC1740A-A evaluates the AEC-Q100-qualified LTC3880IUJ and LTC3880IUJ-1 variants. Its layout, thermal design, and component selection reflect automotive-grade implementation practices, and it supports full telemetry and fault response testing required for functional safety validation in ADAS and domain controller applications.
How does the DC1740A-A enable real-time telemetry and fault logging?
The DC1740A-A routes all LTC3880 telemetry signals (VIN, IIN, VOUT0/1, IOUT0/1, TSNS0/1, internal die temperature) to the PMBus interface. Using LTpowerPlay™ software, engineers can read live values, configure logging intervals, trigger fault events, and retrieve stored fault logs from the DC1740A-A's internal EEPROM - all without modifying firmware or hardware.
Is LTpowerPlay™ software required to operate the DC1740A-A?
LTpowerPlay™ is the official GUI tool provided by Analog Devices for configuring and monitoring the DC1740A-A. While low-level PMBus commands can be sent via custom host controllers, LTpowerPlay™ is required for full access to graphical telemetry plots, fault log analysis, EEPROM store/restore functions, and intuitive sequencing setup - all validated specifically with the DC1740A-A hardware.
DC1740A-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PolyPhase®
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 1.2V
- Voltage - Input:
- 80A
- Regulator Topology:
- 7V ~ 14V
- Frequency - Switching:
- Buck
- Contents:
- 425kHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- LTC3880
DC1740A-A FAQ
1.How can I place an order for DC1740A-A through Aetrix?
Please submit a Request for Quotation (RFQ) for DC1740A-A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DC1740A-A reliable?
The price and inventory of DC1740A-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC1740A-A is usually 5 days.
3.What payment methods are accepted for DC1740A-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DC1740A-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DC1740A-A?
DC1740A-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC1740A-A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DC1740A-A?
For technical support, including DC1740A-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC1740A-A requirements.
6.How does Aetrix verify that DC1740A-A is sourced from the original manufacturer or authorized distributors?
All DC1740A-A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DC1740A-A meets industry standards.
7.What is the process for return or replacement of DC1740A-A?
All DC1740A-A units undergo pre-shipment inspection (PSI). If there is an issue with DC1740A-A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DC1740A-A part is unused and in its original packaging.
Return procedure for DC1740A-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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