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Renesas ISL6740EVAL2Z
- Part No.:
- ISL6740EVAL2Z
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL6740EVAL2Z.pdf
- Description:
- EVAL BOARD FOR ISL6740
- Quantity:
- Payment:
- Shipping:
Inventory:1,466
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Product details
Overview
ISL6740EVAL2Z from Intersil is an evaluation board for the ISL6740 voltage-mode PWM controller, designed to demonstrate a 36V–75V input, regulated 12V/8A isolated DC-DC converter using half-bridge topology with HIP2101 gate drivers and external synchronous rectification. It implements precise dead-time control, adjustable soft-start, and fault annunciation.
For engineers reviewing the ISL6740EVAL2Z datasheet, ISL6740EVAL2Z application schematic, ISL6740EVAL2Z component list, or ISL6740EVAL2Z design validation for telecom power supplies, this page provides verified implementation details, thermal layout guidance, and interoperability notes with ISL6740IBZ and HIP2101IBZ.
Technical Context
The ISL6740EVAL2Z implements a fixed-frequency, voltage-mode PWM-controlled half-bridge DC-DC converter with input range 36–75V and output regulation at 12V/8A. It uses the ISL6740IBZ controller IC (SOIC-16) operating at ~351kHz, driving HIP2101IBZ high-side/low-side gate drivers to switch Fairchild FDS3672 MOSFETs in push-pull configuration across Midcom 31660-LF1 transformer T1.
Board-level features include adjustable overcurrent shutdown via SCSET pin, thermistor-based system overtemperature protection on OTS pin, bidirectional SYNC capability for multi-board synchronization, and closed-loop feedback via LM431BIM3/NOPB shunt regulator and PS2801-1-A optocoupler feeding VERROR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 36V to 75V DC - supports wide-range telecom rectified bus inputs including -48V nominal systems with margin. |
| Output Regulation | 12V ±1% at 8A - achieved via optocoupler-coupled feedback loop with LM431BIM3/NOPB reference and PS2801-1-A isolation. |
| Switching Frequency | ~351 kHz - set by RTD = 51.1kΩ, RTC = 10kΩ, CT = 470pF per ISL6740 datasheet typical conditions. |
| Controller IC | ISL6740IBZ - voltage-mode PWM controller in 16-pin SOIC package with internal 5.00V ±1% reference and 95µA start-up current. |
| Gate Driver | HIP2101IBZ - dual high-speed gate driver with 1.2A peak source/sink, used to drive high-side and low-side FDS3672 MOSFETs. |
| Transformer | Midcom 31660-LF1 - custom planar transformer optimized for 36–75V input, 12V/8A output, and 351kHz operation. |
| Thermal Protection | System-level OTS monitoring via thermistor network - triggers fault latch when OTS pin voltage exceeds VREF/2 (2.5V), with user-adjustable hysteresis. |
Availability
ISL6740EVAL2Z is available at Aetrix Electronics and suitable for telecom power supply development, industrial DC-DC converter validation, and high-reliability 48V bus regulator prototyping requiring stable component supply and full design documentation support.
Supply support for ISL6740EVAL2Z 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
Intersil (now part of Renesas Electronics) is a semiconductor company specializing in high-performance analog and power management ICs for industrial, telecom, and computing applications.
The ISL6740EVAL2Z belongs to Intersil's flexible double-ended PWM controller evaluation platform family, designed specifically to accelerate development of isolated, high-efficiency DC-DC converters for telecom and datacom infrastructure.
FAQ
What is the primary function of the ISL6740EVAL2Z evaluation board?
The ISL6740EVAL2Z evaluation board demonstrates a complete 36V–75V input, regulated 12V/8A half-bridge DC-DC converter using the ISL6740 voltage-mode PWM controller. It validates system-level performance including efficiency, transient response, thermal behavior, and fault handling under real-world telecom input conditions.
Which controller IC is used on the ISL6740EVAL2Z board?
The ISL6740EVAL2Z board uses the ISL6740IBZ - a 16-pin SOIC-packaged, voltage-mode PWM controller with 5.00V ±1% internal reference, 95µA start-up current, and adjustable oscillator frequency up to 2MHz. Its pinout and biasing are fully implemented per FN9111 Rev.7.00 datasheet.
Does the ISL6740EVAL2Z support synchronization with other controllers?
Yes, the ISL6740EVAL2Z supports bidirectional synchronization via the SYNC pin on the ISL6740IBZ controller. The board includes appropriate termination and routing to allow multiple ISL6740EVAL2Z units or other compatible controllers to lock to a common clock, reducing EMI in multi-rail systems.
How is output voltage regulation implemented on the ISL6740EVAL2Z?
Output regulation on the ISL6740EVAL2Z is achieved through an optocoupler-isolated feedback loop: the 12V output is sensed by an LM431BIM3/NOPB shunt regulator, which drives the PS2801-1-A optocoupler to inject error current into the ISL6740's VERROR pin, adjusting PWM duty cycle to maintain tight 12V regulation.
What thermal protection mechanisms are included on the ISL6740EVAL2Z?
The ISL6740EVAL2Z implements dual thermal protection: internal junction shutdown at +145°C (±10°C) and system-level overtemperature monitoring via the OTS pin. A thermistor network biases the OTS pin, triggering fault latch when voltage exceeds VREF/2 (2.5V), allowing user-defined trip points and hysteresis.
ISL6740EVAL2Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 12V
- Voltage - Input:
- 8A
- Regulator Topology:
- 36V ~ 75V
- Frequency - Switching:
- Buck
- Contents:
- -
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ISL6740
ISL6740EVAL2Z FAQ
1.How can I place an order for ISL6740EVAL2Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6740EVAL2Z 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 ISL6740EVAL2Z reliable?
The price and inventory of ISL6740EVAL2Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6740EVAL2Z is usually 5 days.
3.What payment methods are accepted for ISL6740EVAL2Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6740EVAL2Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6740EVAL2Z?
ISL6740EVAL2Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6740EVAL2Z 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 ISL6740EVAL2Z?
For technical support, including ISL6740EVAL2Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6740EVAL2Z requirements.
6.How does Aetrix verify that ISL6740EVAL2Z is sourced from the original manufacturer or authorized distributors?
All ISL6740EVAL2Z 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 ISL6740EVAL2Z meets industry standards.
7.What is the process for return or replacement of ISL6740EVAL2Z?
All ISL6740EVAL2Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL6740EVAL2Z, 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 ISL6740EVAL2Z part is unused and in its original packaging.
Return procedure for ISL6740EVAL2Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL6740EVAL2Z Tags
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