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Texas Instruments LM5015ISOEVAL
- Part No.:
- LM5015ISOEVAL
- Manufacturer:
- Texas Instruments
- Package:
- Datasheet:
-
LM5015ISOEVAL.pdf
- Description:
- EVAL BOARD FOR LM5015
- Quantity:
- Payment:
- Shipping:
Inventory:2,676
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Product details
Overview
LM5015ISOEVAL from Texas Instruments is an evaluation board for the LM5015 high-voltage monolithic two-switch forward/flyback DC-DC regulator IC, enabling rapid prototyping of isolated 5V/2.5A power supplies in industrial and telecom systems. It operates from 36–72V input, delivers regulated 5V ±1.5% output, achieves 86% efficiency at 48V/2.5A, and supports external clock synchronization and remote enable/disable control.
For engineers reviewing the LM5015ISOEVAL datasheet, LM5015ISOEVAL pinout, LM5015ISOEVAL application, or LM5015ISOEVAL equivalent, this page provides verified board-level specifications, configuration options (forward vs. flyback), thermal and probing guidance, efficiency curves, and BOM-level component validation - all critical for evaluating isolated DC-DC design feasibility and layout compatibility.
Technical Context
The LM5015ISOEVAL implements a fully assembled, two-layer PCB-based reference design centered on the LM5015 controller IC, which integrates both high-side and low-side MOSFETs to eliminate discrete power switches. It supports dual topologies: factory-default isolated two-switch forward (higher efficiency, lower ripple) and reconfigurable isolated two-switch flyback (lower cost, simplified magnetics).
Board-level features include synchronized switching at 300 kHz (native oscillator at 600 kHz), under-voltage lockout at 34V nominal, cycle-by-cycle current limiting at 1.2A primary switch peak, and AGND-referenced SYNC and EN control nodes - all validated per TI's AN-1724 and SNVA291A documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 36V to 72V - supports standard 48V telecom and industrial bus rails with 10% margin. |
| Output Voltage | 5V ±1.5% - tightly regulated across full input and load range, suitable for logic and interface power domains. |
| Max Output Current | 3A - enables robust testing of downstream loads including microcontrollers, FPGAs, and isolated interfaces. |
| Switching Frequency | 300 kHz - balances EMI performance, transformer size, and MOSFET conduction losses in isolated designs. |
| Measured Efficiency | 86% at VIN = 48V, IOUT = 2.5A - confirms real-world thermal and conversion performance without heatsink or forced air. |
| Board Dimensions | 2.5 in × 3.5 in × 0.63 in - compact form factor fits standard lab test benches and embedded system integration workflows. |
| Topology Support | Configurable forward (default) or flyback - allows direct comparison of ripple, efficiency, and transformer complexity in same hardware. |
Availability
LM5015ISOEVAL is available at Aetrix Electronics and suitable for telecom power subsystem validation, industrial isolated supply qualification, and embedded system safety-critical power architecture development requiring stable component supply and documented reference performance.
Supply support for LM5015ISOEVAL 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog, embedded processing, and power management solutions with deep expertise in power conversion and industrial-grade reliability.
The LM5015ISOEVAL belongs to TI's high-voltage isolated DC-DC evaluation platform family, designed specifically to accelerate adoption of monolithic two-switch regulators in space-constrained, high-input-voltage applications such as base station power, industrial PLCs, and distributed energy systems.
FAQ
What topology does the LM5015ISOEVAL ship configured for?
The LM5015ISOEVAL ships pre-configured as an isolated two-switch forward DC-DC regulator, which delivers higher efficiency (~2% gain) and lower output ripple compared to the flyback option. This default configuration uses transformer T1-A (CA2983-CL) or T1-B (PA2194NL), and is validated per Figure 2 in AN-1724. Reconfiguration to flyback requires BOM changes listed in Table 2, including replacement of D4, L2, and the transformer.
Can the LM5015ISOEVAL be synchronized to an external clock?
Yes, the LM5015ISOEVAL supports external clock synchronization via the SYNC plated via referenced to AGND. Because the LM5015 internal oscillator runs at twice the switching frequency (600 kHz for 300 kHz operation), the external clock must exceed 600 kHz. Signal amplitude, rise/fall time, and duty cycle requirements are specified in the LM5015 datasheet (SNVS538), not the LM5015ISOEVAL user guide.
What is the maximum safe operating load current for the LM5015ISOEVAL?
The LM5015ISOEVAL supports up to 3A continuous output current, but exceeding 2.5A triggers cycle-by-cycle peak current limiting when primary switch current exceeds 1.2A (nominal). Sustained >3A loads cause output voltage collapse below 5V regulation. Thermal monitoring of U1 (LM5015), D3, and D4 is essential above 2A, especially at VIN = 72V.
How is remote enable/disable implemented on the LM5015ISOEVAL?
Remote enable/disable is implemented via the EN plated via on the LM5015ISOEVAL board, referenced to AGND. A logic-high signal (typically 3.3V or 5V) enables regulation; grounding or open-circuit disables it. The EN node connects directly to the LM5015's enable pin, and its threshold and hysteresis match the IC's datasheet specification - no external pull-up or level-shifting components are required.
Does the LM5015ISOEVAL include isolation certification documentation?
No, the LM5015ISOEVAL itself is not certified to UL, CSA, or IEC standards. It implements reinforced isolation via the transformer and optocoupler (U2: PS2811-1-M), but formal safety certification requires system-level testing in the end application. TI provides creepage/clearance data and transformer isolation ratings (e.g., 2.5 kVRMS for T1-A) in the BOM and schematic - users must validate compliance per their target regulatory standard.
LM5015ISOEVAL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 5V
- Voltage - Input:
- 3A
- Regulator Topology:
- 36V ~ 72V
- Frequency - Switching:
- Buck
- Contents:
- 300kHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- LM5015
LM5015ISOEVAL FAQ
1.How can I place an order for LM5015ISOEVAL through Aetrix?
Please submit a Request for Quotation (RFQ) for LM5015ISOEVAL 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 LM5015ISOEVAL reliable?
The price and inventory of LM5015ISOEVAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM5015ISOEVAL is usually 5 days.
3.What payment methods are accepted for LM5015ISOEVAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM5015ISOEVAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM5015ISOEVAL?
LM5015ISOEVAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM5015ISOEVAL 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 LM5015ISOEVAL?
For technical support, including LM5015ISOEVAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM5015ISOEVAL requirements.
6.How does Aetrix verify that LM5015ISOEVAL is sourced from the original manufacturer or authorized distributors?
All LM5015ISOEVAL 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 LM5015ISOEVAL meets industry standards.
7.What is the process for return or replacement of LM5015ISOEVAL?
All LM5015ISOEVAL units undergo pre-shipment inspection (PSI). If there is an issue with LM5015ISOEVAL, 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 LM5015ISOEVAL part is unused and in its original packaging.
Return procedure for LM5015ISOEVAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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