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Renesas ISL81801EVAL1Z
- Part No.:
- ISL81801EVAL1Z
- Manufacturer:
- Renesas
- Package:
- Datasheet:
-
ISL81801EVAL1Z.pdf
- Description:
- EVAL BOARD FOR ISL81801
- Quantity:
- Payment:
- Shipping:
Inventory:3,904
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Product details
Overview
The ISL81801EVAL1Z from Renesas Electronics is a high-voltage buck-boost controller evaluation board built around the ISL81801 TQFN IC. It supports 9V–80V input, delivers 12V/10A output, features bi-directional operation, programmable switching frequency (100–600kHz), and integrated UV/OV/OC/OT protection for industrial power conversion validation.
For engineers reviewing the ISL81801EVAL1Z datasheet, ISL81801EVAL1Z test setup, ISL81801EVAL1Z performance curves, or ISL81801EVAL1Z layout guidelines, this board enables full functional verification of the ISL81801's synchronous 4-switch buck-boost topology under real-world load, line, and transient conditions - including DEM/PWM mode selection, HICCUP vs. CC OCP, and pre-bias start-up.
Technical Context
The ISL81801EVAL1Z implements the ISL81801's dual-phase, 4-switch synchronous buck-boost architecture with external gate drivers driving discrete N-channel MOSFETs (BSC070N10NS5ATMA1 and BSC024NE2LSATMA1). It operates in CCM or pulse-skipping DEM mode, supports bi-directional energy flow via FBI pin control, and uses independent EN/UVLO and soft-start (SS/TRK) inputs for system-level sequencing.
Key design elements include a 6.8µH power inductor (Wurth 74439370068), 22µF/25V output capacitors (Murata GRM32ER71E226KE15L), and precision current-sense resistors (0.006Ω/0.008Ω Rohm PMR18EZPFU series). The board provides jumper-selectable PWM/DEM, CC/HICCUP OCP, and enable/disable functions via headers J8, J9, and J3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 9V to 80V - supports wide-range industrial, telecom, and battery-based DC sources without external pre-regulation. |
| Output Voltage | 12V fixed - configured by feedback resistor network (R2/R3); adjustable via external divider per application requirements. |
| Maximum Output Current | 10A continuous - limited by FET thermal performance and inductor saturation; validated at room temperature with no airflow. |
| Switching Frequency | 200kHz default - programmable from 100kHz to 600kHz via RT/SYNC pin; balances efficiency, size, and EMI performance. |
| OCP Set Point | ≥11A at ambient - set by current-sense amplifier gain and sense-resistor value; configurable for constant-current or hiccup-mode response. |
| Operating Temperature | −40°C to +85°C - rated for industrial environments; airflow recommended above 60°C ambient. |
Availability
The ISL81801EVAL1Z is available at Aetrix Electronics and suitable for high-voltage DC/DC converter development, industrial power supply qualification, and automotive auxiliary power system prototyping requiring stable component supply and full-feature evaluation capability.
Supply support for ISL81801EVAL1Z 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 leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL81801EVAL1Z belongs to Renesas' high-voltage power management evaluation platform family, designed specifically to accelerate adoption of the ISL81801 80V 4-switch buck-boost controller in demanding off-line and battery-fed systems.
FAQ
What is the primary function of the ISL81801EVAL1Z?
The ISL81801EVAL1Z is a fully assembled evaluation board for the ISL81801 80V synchronous 4-switch buck-boost controller. It enables hardware validation of voltage regulation, bi-directional operation, transient response, efficiency, and protection features across its 9V–80V input range and 12V/10A output capability. Engineers use the ISL81801EVAL1Z to verify system behavior before custom PCB design.
Does the ISL81801EVAL1Z support bi-directional power flow?
Yes, the ISL81801EVAL1Z supports bi-directional operation when configured per Section 1.3 of its User's Manual: the FBI pin must be floated, CCM mode selected via jumper J8, and input voltage applied to charge an external supercapacitor. This validates regenerative energy transfer capability inherent to the ISL81801 controller, critical for battery backup and energy recovery applications.
How is output voltage set on the ISL81801EVAL1Z?
The ISL81801EVAL1Z is factory-configured for a fixed 12V output using the feedback resistor divider formed by R2 and R3. The output voltage equation is VOUT = 0.6V × (1 + R2/R3). To change VOUT, users replace R2 and/or R3 with values satisfying this ratio - for example, 15kΩ and 115kΩ yields ~12V, while 10kΩ and 190kΩ yields ~12.6V - maintaining stability via compensation network integrity.
What protection features are implemented on the ISL81801EVAL1Z?
The ISL81801EVAL1Z implements all core protections of the ISL81801 IC: input undervoltage lockout (EN/UVLO), overvoltage (OV), overtemperature (OTP), overcurrent (OCP) with selectable constant-current or hiccup mode, and PGOOD monitoring. These are active during operation and verified in the User's Manual's quick test guide and performance curves (Figures 21–27).
Can the ISL81801EVAL1Z operate in forced PWM or diode-emulation mode?
Yes, the ISL81801EVAL1Z supports both modes via jumper J8: shorting pins 1–2 selects forced PWM for low-noise, fixed-frequency operation; shorting pins 2–3 selects diode-emulation (DEM) mode for improved light-load efficiency. Mode selection directly configures the ISL81801's PWM_MODE pin, enabling accurate efficiency comparison across load ranges as shown in Figures 14 and 15.
ISL81801EVAL1Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Up or Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- 120 W
- Current - Output:
- 12V
- Voltage - Input:
- 10A
- Regulator Topology:
- 9V ~ 80V
- Frequency - Switching:
- Buck-Boost
- Contents:
- 200kHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ISL81801
ISL81801EVAL1Z FAQ
1.How can I place an order for ISL81801EVAL1Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL81801EVAL1Z 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 ISL81801EVAL1Z reliable?
The price and inventory of ISL81801EVAL1Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL81801EVAL1Z is usually 5 days.
3.What payment methods are accepted for ISL81801EVAL1Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL81801EVAL1Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL81801EVAL1Z?
ISL81801EVAL1Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL81801EVAL1Z 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 ISL81801EVAL1Z?
For technical support, including ISL81801EVAL1Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL81801EVAL1Z requirements.
6.How does Aetrix verify that ISL81801EVAL1Z is sourced from the original manufacturer or authorized distributors?
All ISL81801EVAL1Z 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 ISL81801EVAL1Z meets industry standards.
7.What is the process for return or replacement of ISL81801EVAL1Z?
All ISL81801EVAL1Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL81801EVAL1Z, 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 ISL81801EVAL1Z part is unused and in its original packaging.
Return procedure for ISL81801EVAL1Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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