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STMicroelectronics STEVAL-ISA143V1
- Part No.:
- STEVAL-ISA143V1
- Manufacturer:
- STMicroelectronics
- Package:
- Datasheet:
-
STEVAL-ISA143V1.pdf
- Description:
- EVAL BOARD L6563H L6699 SRK2000
- Quantity:
- Payment:
- Shipping:
Inventory:2,202
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Product details
Overview
STEVAL-ISA143V1 from STMicroelectronics is a 12 V, 150 W system evaluation board implementing a two-stage AC-DC converter: an active PFC front-end (L6563H) followed by an LLC resonant converter (L6699 + SRK2000), with synchronous rectification on the secondary side. It delivers 12.5 A continuous output at 12 V, achieves >91% efficiency at nominal load (115 VAC), and complies with EN61000-3-2 Class-D harmonic limits and European CoC Tier 2 efficiency requirements.
For engineers reviewing the STEVAL-ISA143V1 datasheet, STEVAL-ISA143V1 application notes, STEVAL-ISA143V1 schematic, or STEVAL-ISA143V1 alternative evaluation boards, this page provides verified technical context, key design specifications, supply availability, manufacturer background, and targeted FAQs for high-efficiency offline power supply development.
Technical Context
The board integrates three ST ICs: L6563H (transition-mode PFC controller with HV startup), L6699D (LLC resonant controller with fixed 50% duty cycle, variable-frequency operation, and LINE pin under-voltage protection), and SRK2000 (dual-channel synchronous rectifier driver with drain-voltage sensing, zero-current turn-off, and automatic light-load Sleep mode).
It uses an integrated-magnetic transformer with built-in resonant inductance and center-tapped secondary winding. Output filtering relies on low-ESR aluminum polymer capacitors instead of electrolytics, eliminating the need for an output LC filter while reducing conduction losses and ripple at high current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 90–264 VAC, 45–65 Hz - supports universal mains input without manual selection. |
| Output voltage/current | 12 V / 12.5 A continuous - delivers 150 W at regulated DC output with thermal margin. |
| Peak efficiency | >91% at 115 VAC nominal load - minimizes heat generation and improves thermal design margin. |
| Light-load efficiency | >50% at 250 mW per ErP Lot 6 Tier 2 - enabled by SRK2000 Sleep mode, reducing no-load consumption to <0.15 W. |
| EMI compliance | EN55022 Class-B - meets conducted and radiated emission limits for commercial environments. |
| Safety standard | EN60950 certified - ensures isolation, creepage, and clearance meet industrial safety requirements. |
| PCB format | 65 × 154 mm, double-sided FR-4, 70 µm copper - optimized mechanical fit and thermal performance for lab and pre-compliance testing. |
Availability
STEVAL-ISA143V1 is available at Aetrix Electronics and suitable for high-efficiency AC-DC adapter development, industrial auxiliary power supply qualification, and LLC topology validation requiring stable component supply and documented reference design implementation.
Supply support for STEVAL-ISA143V1 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, analog devices, and silicon solutions for industrial, automotive, and consumer applications.
This evaluation board belongs to ST's STEVAL (ST Evaluation) platform, engineered to accelerate design-in of ST's proprietary power architectures-specifically targeting high-efficiency, low-noise, and standards-compliant offline power conversion systems.
FAQ
What is the primary topology implemented on the STEVAL-ISA143V1?
The board implements a two-stage topology: a transition-mode PFC stage using the L6563H, followed by an LLC resonant converter controlled by the L6699D, with synchronous rectification managed by the SRK2000 on the secondary side. The integrated-magnetic transformer eliminates external resonant inductors, and center-tapped secondary winding enables dual-MOSFET SR configuration.
Does the board support automatic light-load optimization?
Yes. The SRK2000 IC monitors load conditions and automatically enters Sleep mode below ~250 mW, disabling gate drive to the synchronous rectifiers and reducing its own quiescent current. This achieves <0.15 W no-load consumption and >50% efficiency at 250 mW, satisfying ErP Lot 6 Tier 2 requirements.
Can the STEVAL-ISA143V1 be used for EMI pre-compliance testing?
Yes. The board meets EN55022 Class-B conducted and radiated emission limits when tested with recommended layout, grounding, and input filter components as specified in the data brief. Its PCB stack-up, component placement, and shielding practices are designed to support repeatable EMI characterization prior to formal certification.
Is the L6699's LINE pin function implemented and validated on this board?
Yes. The L6699's LINE pin (Pin 7) is actively used to monitor PFC output voltage. It prevents LLC startup if bulk voltage falls below 380 V and allows continued operation down to 300 V during mains sags, avoiding capacitive-mode operation and ensuring reliable protection across line transients.
STEVAL-ISA143V1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Main Purpose:
- AC/DC, Primary Side
- Outputs and Type:
- 1 Isolated Output
- Voltage - Output:
- 150 W
- Current - Output:
- 12V
- Voltage - Input:
- 12.5A
- Regulator Topology:
- 90 ~ 264 VAC
- Frequency - Switching:
- Resonant
- Contents:
- -
- Utilized IC / Part:
- Board(s)
- Power - Output:
- L6563H, L6699, SRK2000
STEVAL-ISA143V1 FAQ
1.How can I place an order for STEVAL-ISA143V1 through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-ISA143V1 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 STEVAL-ISA143V1 reliable?
The price and inventory of STEVAL-ISA143V1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-ISA143V1 is usually 5 days.
3.What payment methods are accepted for STEVAL-ISA143V1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-ISA143V1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-ISA143V1?
STEVAL-ISA143V1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-ISA143V1 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 STEVAL-ISA143V1?
For technical support, including STEVAL-ISA143V1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-ISA143V1 requirements.
6.How does Aetrix verify that STEVAL-ISA143V1 is sourced from the original manufacturer or authorized distributors?
All STEVAL-ISA143V1 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 STEVAL-ISA143V1 meets industry standards.
7.What is the process for return or replacement of STEVAL-ISA143V1?
All STEVAL-ISA143V1 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-ISA143V1, 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 STEVAL-ISA143V1 part is unused and in its original packaging.
Return procedure for STEVAL-ISA143V1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STEVAL-ISA143V1 Tags
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DFR0571
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DC2468A
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TPS55289EVM-093
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