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STMicroelectronics STEVAL-ISA149V1
- Part No.:
- STEVAL-ISA149V1
- Manufacturer:
- STMicroelectronics
- Package:
- Datasheet:
-
STEVAL-ISA149V1.pdf
- Description:
- EVAL BOARD FOR L6563S L6566A
- Quantity:
- Payment:
- Shipping:
Inventory:1,702
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Product details
Overview
STEVAL-ISA149V1 from STMicroelectronics is a 75 W, 19 V @ 4 A Energy Star-compliant reference design for high-end portable computer AC/DC adapters, implementing a two-stage architecture with L6563S-based PFC and L6566A-based flyback controller, achieving >87% active-load efficiency without synchronous rectification and <0.14 W standby consumption at 230 Vac.
For engineers reviewing the STEVAL-ISA149V1 datasheet, STEVAL-ISA149V1 pinout, STEVAL-ISA149V1 application, or STEVAL-ISA149V1 equivalent, this evaluation board supports rapid validation of high-efficiency, low-standby-power SMPS topologies compliant with EN61000-3-2 Class-D, EN55022 Class-B, and EN60950 safety standards in compact 78 × 170 mm form factor.
Technical Context
The design integrates an active PFC front-end (L6563S) operating in transition mode and a current-mode flyback controller (L6566A) acting as system master, coordinating PFC enable/disable via VCC_PFC pin to minimize light-load losses. The TSM1014A provides precise CV/CC regulation on the secondary side.
It delivers full compliance with Energy Star® EPS v2.0 and COMPUTERS v4.0 requirements, including harmonic distortion limits (EN61000-3-2 Class-D), conducted EMI (EN55022 Class-B), and safety (EN60950), using mixed PTH/SMT single-side CEM-1 PCB with 70 μm copper and ≤25 mm component height.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Power | 75 W continuous, supporting 19 V @ 4 A laptop adapter loads |
| Input Range | 90–264 Vac, 45–65 Hz universal mains, enabling global deployment |
| Active Efficiency | >87% at full load without synchronous rectification, reducing BOM cost |
| Standby Consumption | <0.14 W @ 230 Vac, meeting strict Energy Star® EPS v2.0 limits |
| EMI Compliance | EN55022 Class-B certified, minimizing filtering component count |
| Safety Standard | EN60950-1 certified, supporting commercial-grade power supply certification |
| PCB Format | Single-sided, 70 μm copper, CEM-1 substrate, PTH/SMT hybrid assembly |
Availability
STEVAL-ISA149V1 is available at Aetrix Electronics and suitable for laptop AC adapter development, industrial SMPS prototyping, and Energy Star®-certified external power supply qualification requiring stable component supply and reference design traceability.
Supply support for STEVAL-ISA149V1 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, designing and manufacturing microcontrollers, analog ICs, power devices, and silicon solutions for automotive, industrial, and consumer markets.
This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built reference designs that accelerate time-to-certification for energy-efficient, safety-compliant AC/DC power supplies targeting computing and portable electronics.
FAQ
What is the primary topology implemented on STEVAL-ISA149V1?
The board implements a two-stage topology: a transition-mode PFC stage using the L6563S controller followed by a current-mode flyback converter controlled by the L6566A. The flyback stage acts as the system master, managing PFC activation via the VCC_PFC pin to optimize light-load efficiency without added complexity.
Does STEVAL-ISA149V1 include synchronous rectification?
No - STEVAL-ISA149V1 achieves >87% full-load efficiency using standard diode rectification (STPS20H100CFP Schottky diodes), eliminating gate-drive circuitry and MOSFETs on the secondary side. This reduces component count and cost while maintaining Energy Star® compliance.
Which safety and EMI standards does this board meet?
STEVAL-ISA149V1 meets EN60950-1 for safety, EN61000-3-2 Class-D for input current harmonics, and EN55022 Class-B for conducted/radiated EMI. These certifications are verified per the official ST data brief (DocID025877 Rev 2, June 2016) and support final product qualification.
Can STEVAL-ISA149V1 be modified for different output voltages?
Yes - output voltage is set by resistive divider feedback to the TSM1014A CV/CC controller. Adjusting R19 and R35 (as shown in schematic Fig.1) recalibrates the 19 V output; however, transformer turns ratio (T1 SRW32EC-T01H114) and output capacitor ratings must remain compatible with new voltage/current targets.
STEVAL-ISA149V1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Main Purpose:
- AC/DC, Primary Side and PFC
- Outputs and Type:
- 1 Isolated Output
- Voltage - Output:
- 75 W
- Current - Output:
- 19V
- Voltage - Input:
- 4A
- Regulator Topology:
- 90 ~ 264 VAC
- Frequency - Switching:
- Flyback
- Contents:
- -
- Utilized IC / Part:
- Board(s)
- Power - Output:
- L6563S, L6566A
STEVAL-ISA149V1 FAQ
1.How can I place an order for STEVAL-ISA149V1 through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-ISA149V1 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-ISA149V1 reliable?
The price and inventory of STEVAL-ISA149V1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-ISA149V1 is usually 5 days.
3.What payment methods are accepted for STEVAL-ISA149V1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-ISA149V1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-ISA149V1?
STEVAL-ISA149V1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-ISA149V1 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-ISA149V1?
For technical support, including STEVAL-ISA149V1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-ISA149V1 requirements.
6.How does Aetrix verify that STEVAL-ISA149V1 is sourced from the original manufacturer or authorized distributors?
All STEVAL-ISA149V1 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-ISA149V1 meets industry standards.
7.What is the process for return or replacement of STEVAL-ISA149V1?
All STEVAL-ISA149V1 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-ISA149V1, 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-ISA149V1 part is unused and in its original packaging.
Return procedure for STEVAL-ISA149V1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STEVAL-ISA149V1 Tags
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DFR0571
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DFR0379
DFRobot
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DFR0205
DFRobot
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1385
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2465
Adafruit Industries LLC
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DC2468A
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DC2841A
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TPS55289EVM-093
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