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Renesas ISL8104EVAL1Z

Name: ISL8104EVAL1Z
Brand: Renesas
SKU: ISL8104EVAL1Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ISL8104EVAL1Z

Manufacturer:: Renesas

Category:: DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards

Package:

Datasheet:: ISL8104EVAL1Z.pdf

Description:: EVAL BOARD FOR ISL8104

Quantity:: RFQ Add To RFQ list

Payment:

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Inventory:4,551

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Product details

Overview

ISL8104EVAL1Z from Renesas Electronics is an evaluation board for the ISL8104 single-phase synchronous buck PWM controller, designed to demonstrate DC/DC conversion at 1.8V/20A output with 300kHz switching frequency, using integrated gate drivers and r_DS(ON)-based overcurrent protection.

For engineers reviewing the ISL8104EVAL1Z datasheet, ISL8104EVAL1Z pinout, ISL8104EVAL1Z application, or ISL8104EVAL1Z equivalent, this board enables rapid validation of voltage-mode control, pre-biased soft-start behavior, and MOSFET driver timing in high-current point-of-load designs.

Technical Context

The ISL8104EVAL1Z implements a complete single-phase synchronous buck converter with the ISL8104 controller (14-lead SOIC), two Infineon N-channel MOSFETs (BSC080N03LS high-side, BSC030N03LS low-side), and a 0.68µH Vishay IHLP5050FD-R68 inductor. It supports input voltage range 8–14.4V and delivers regulated 1.8V at up to 20A continuous load.

Key design features include dual-edge voltage-mode PWM modulation, 120ns OCP blanking, r_DS(ON) current sensing without shunt resistors, and Type-III feedback compensation optimized for 50kHz loop bandwidth. The board uses four 560µF Fujitsu polymer capacitors for output filtering and three 330µF Sanyo aluminum capacitors for input bulk storage.

Key Specifications

Parameter	Value and Actual Design Meaning
Controller IC	ISL8104IBZ in 14-lead SOIC package - provides integrated high- and low-side gate drivers, internal reference, and TSOC-based OCP.
Output Voltage	1.8V nominal - set by resistor divider (R1 = 23.2kΩ, R4 = 11.5kΩ) referencing 0.597V internal VREF.
Max Output Current	20A continuous - validated with thermal management using dual low-side MOSFETs and 4×560µF output capacitance.
Switching Frequency	300kHz - fixed via external FSET resistor; enables compact magnetics and controlled EMI profile.
Input Voltage Range	8V to 14.4V - accommodates 12V nominal rail with ±20% tolerance; bias supplied via PVCC/VCC pins.
OCP Trip Point	~25A - configured using 1.15kΩ RTSOC resistor and BSC080N03LS top-side MOSFET r_DS(ON).
Output Ripple	<30mV_P-P - achieved with total effective ESR <4mΩ using parallel polymer capacitors.

Availability

ISL8104EVAL1Z is available at Aetrix Electronics and suitable for power supply validation, DC/DC reference design verification, and high-current POL regulator prototyping requiring stable component supply and documented layout practices.

Supply support for ISL8104EVAL1Z 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

Renesas Electronics Corporation is a global semiconductor manufacturer specializing in microcontrollers, analog, power management, and timing solutions for industrial, automotive, and computing applications.

The ISL8104EVAL1Z belongs to Renesas' legacy Intersil analog power evaluation platform, developed specifically to accelerate adoption of high-efficiency synchronous buck controllers in server, telecom, and FPGA power delivery systems.

FAQ

What is the primary function of the ISL8104EVAL1Z evaluation board?

The ISL8104EVAL1Z evaluation board demonstrates the operation of the ISL8104 single-phase synchronous buck PWM controller in a fully assembled 1.8V/20A DC/DC converter. It validates voltage-mode control, r_DS(ON)-based overcurrent protection, pre-biased soft-start, and Type-III loop compensation - all implemented using the ISL8104IBZ controller and discrete power stage components.

Which controller IC is mounted on the ISL8104EVAL1Z board?

The ISL8104EVAL1Z board mounts the ISL8104IBZ - a 14-lead SOIC packaged PWM controller with integrated high- and low-side gate drivers, 0.597V internal reference, and TSOC pin for r_DS(ON)-based overcurrent detection. This exact variant is confirmed in the Bill of Materials on page 7 of AN1416 Rev 1.00.

Does the ISL8104EVAL1Z support input voltages outside the 8–14.4V range?

No - the ISL8104EVAL1Z is designed and validated exclusively for 8V to 14.4V input operation, matching the ISL8104's specified bias supply range. The board's power stage components (MOSFETs, input capacitors, bootstrap circuit) are rated and selected for this window; operation beyond 14.4V risks exceeding PVCC absolute maximum ratings and MOSFET breakdown limits.

How is overcurrent protection implemented on the ISL8104EVAL1Z?

Overcurrent protection on the ISL8104EVAL1Z uses the ISL8104's TSOC pin with an external 1.15kΩ resistor (R15) and capacitor connected between TSOC and LX. It senses voltage drop across the high-side MOSFET's r_DS(ON) during turn-on, triggering shutdown when current exceeds ~25A. A 120ns blanking period rejects switching noise, as documented in Equations 14 and Section "Overcurrent Protection Setting".

Can the ISL8104EVAL1Z be used to evaluate different output voltages?

Yes - the output voltage is set by the FB resistor divider (R1 and R4). Per Equation 16 in AN1416, replacing R4 (11.5kΩ) with a value calculated as R4 = R1 × (V_REF / (V_OUT − V_REF)) allows reconfiguration for other outputs (e.g., 1.2V, 2.5V, 3.3V), provided the ISL8104's operating constraints (min/max duty cycle, loop stability, MOSFET selection) are maintained.

ISL8104EVAL1Z Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Packaging:: Box

Product Status:: Obsolete

Main Purpose:: DC/DC, Step Down

Outputs and Type:: 1 Non-Isolated Output

Voltage - Output:: -

Current - Output:: 1.8V

Voltage - Input:: 20A

Regulator Topology:: 8V ~ 14.4V

Frequency - Switching:: Buck

Contents:: 300kHz

Utilized IC / Part:: Board(s)

Power - Output:: ISL8104

ISL8104EVAL1Z FAQ

1.How can I place an order for ISL8104EVAL1Z through Aetrix?

Please submit a Request for Quotation (RFQ) for ISL8104EVAL1Z 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 ISL8104EVAL1Z reliable?

The price and inventory of ISL8104EVAL1Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8104EVAL1Z is usually 5 days.

3.What payment methods are accepted for ISL8104EVAL1Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8104EVAL1Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ISL8104EVAL1Z?

ISL8104EVAL1Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ISL8104EVAL1Z 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 ISL8104EVAL1Z?

For technical support, including ISL8104EVAL1Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8104EVAL1Z requirements.

6.How does Aetrix verify that ISL8104EVAL1Z is sourced from the original manufacturer or authorized distributors?

All ISL8104EVAL1Z 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 ISL8104EVAL1Z meets industry standards.

7.What is the process for return or replacement of ISL8104EVAL1Z?

All ISL8104EVAL1Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL8104EVAL1Z, 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 ISL8104EVAL1Z part is unused and in its original packaging.

Return procedure for ISL8104EVAL1Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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