Renesas ISL8216MEVAL1Z

Overview

ISL8216MEVAL1Z from Renesas Electronics is an evaluation board for the ISL8216M high-voltage DC/DC power module, supporting input voltages from 10V to 80V and preset output voltages of 5V, 12V, 20V, 24V, or 30V - with adjustable outputs down to 2.5V via feedback resistor. It delivers up to 4A continuous load current and serves as a reference design for telecom/datacom, industrial, and automotive 48V/12V/42V distributed power systems.

For engineers reviewing the ISL8216MEVAL1Z datasheet, ISL8216MEVAL1Z pinout, ISL8216MEVAL1Z application, or ISL8216MEVAL1Z equivalent, this board enables rapid validation of high-voltage POL conversion, switching frequency tuning (200–600 kHz), PGOOD delay implementation, external enable control, and EMI-compliant layout practices per CISPR 22 Class B.

Technical Context

The ISL8216MEVAL1Z implements the ISL8216M's fixed 300kHz base switching frequency - adjustable via RTCT resistor/capacitor network - and supports synchronization via the SYNC pin. Its on-board circuitry validates critical system-level functions including PGOOD assertion timing (±14% FB threshold), bootstrap capacitor charging behavior above 12V VOUT, and VIN-to-BOOT resistor requirements under non-monotonic startup conditions.

Board-level features include a 4-layer FR4 stackup (2oz outer / 1oz inner copper), pre-populated 6×22µF/35V ceramic output capacitors, PCOMPX compensation configuration options (0Ω for all-ceramic, <1kΩ for polymer/tantalum), and provisioned footprints for optional external enable circuitry, PGOOD delay network (R3/C2/M1), and input EMI filtering.

Key Specifications

Availability

ISL8216MEVAL1Z is available at Aetrix Electronics and suitable for telecom/datacom power validation, industrial 48V POL prototyping, and automotive 42V DC/DC reference design requiring stable component supply and documented layout practices.

Supply support for ISL8216MEVAL1Z 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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.

The ISL8216MEVAL1Z belongs to Renesas' high-voltage DC/DC evaluation platform family, designed specifically to accelerate development of robust, high-efficiency point-of-load converters for demanding 10–80V input systems.

FAQ

What is the primary function of the ISL8216MEVAL1Z?

The ISL8216MEVAL1Z is an evaluation board - not an IC or discrete component - built to demonstrate and validate the ISL8216M high-voltage DC/DC power module. It provides a fully assembled, tested platform for evaluating input range (10–80V), output voltage configuration (5V/12V/20V/24V/30V or adjustable), 4A load capability, switching frequency tuning, PGOOD behavior, and EMI performance in real-world POL applications.

Does the ISL8216MEVAL1Z include the ISL8216M module?

Yes, the ISL8216MEVAL1Z includes one ISL8216MIRZ DC/DC power module (15mm × 15mm HDA package) mounted on the board. This module integrates controller, MOSFETs, and power inductors, enabling a complete high-voltage buck converter with minimal external components - as confirmed in the Bill of Materials (Page 8, U1 entry).

Can the ISL8216MEVAL1Z be used for radiated emissions testing?

Yes - the ISL8216MEVAL1Z has been tested per CISPR 22 Class B radiated emission standards using the recommended input filter (Figure 4). Measurement data is provided in Figures 15 and 16 for 24VIN→5VOUT@4A and 24VIN→12VOUT@4A operating points, making it suitable for pre-compliance EMI validation in early-stage power design.

How is output voltage selected on the ISL8216MEVAL1Z?

Output voltage is selected using five onboard jumpers (JP1–JP5): JP1 = 5V, JP2 = 12V, JP3 = 20V, JP4 = 24V, JP5 = 30V. For any other output between 2.5V and 30V, users replace the corresponding RFB resistor per Equation 1 in the manual - e.g., RFB = 11.3kΩ yields 5V - with attention to resistor tolerance (0.5% recommended for accuracy).

What external circuits are required when using >12V output on the ISL8216MEVAL1Z?

When VOUT >12V, Table 1 mandates specific external circuits depending on use case: a PGOOD delay circuit (C2/R3/M1) + 1kΩ dummy load is required if PGOOD is used and self-enable is active; a VIN-to-BOOT resistor (R23) is required if PGOOD is unused or external enable is used. All footprints are provided on the ISL8216MEVAL1Z board for immediate implementation.