Renesas ISL81802EVAL3Z, User Manual

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ISL81802EVAL3Z
Evaluation Board
R16UH0004EU0100 Rev.1.00 Page 1 of 19
Sep.15.20
User Manual
The ISL81802EVAL3Z 4-phase evaluation board (shown in Figure 4 ) features the ISL81802 , a 80V high-voltage
dual synchronous buck controller that offers external soft-start, independent enable functions, and integrates
UV/OV/OC/OT protection. A programmable switching frequency ranging from 100kHz to 1MHz helps optimize
inductor size while the strong gate driver delivers up to 40A for the buck output.
Key Features
• Wide input range: 18V to 80V
• High light-load efficiency in pulse skipping DEM operation
• Programmable soft-start
• Optional DEM/PWM operation
• Optional CC/HICCUP OCP protection
• Supports pre-bias output with soft-start
• PGOOD indicator
• OVP, OTP, and UVP protection
• Back biased from output to improve efficiency
The ISL81802EVAL3Z 4-phase evaluation board is designed for high current applications. The current rating of
the ISL81802EVAL3Z is limited by the FETs and inductor selected. The ISL81802EVAL3Z electrical ratings are
shown in
Table 1 .
Ordering Information
Related Literature
For a full list of related documents, visit our website:
• ISL81802 device page
Table 1. Electrical Rating
Parameter Rating
Input Voltage 18V to 80V
Switching Frequency 200kHz
Output Voltage 12V
Output Current 40A
OCP Set Point Minimum 44A at ambient room temperature
Part Number Description
ISL81802EVAL3Z High Voltage Dual Buck Controller Evaluation Board