ISL8117DEMO2Z: 12V @ 20A, 18 ~ 60V in, Buck

Summary

The ISL8117DEMO2Z demonstration board (shown in Figure 1) features the ISL8117. The ISL8117 is a 60V high voltage synchronous buck controller that offers external soft-start, independent enable functions and integrates UV/OV/OC/OT protection. Its current mode control architecture and internal compensation network keep peripheral component count minimal. Programmable switching frequency ranging from 100kHz to 2MHz helps to optimize inductor size while the strong gate driver delivers up to 30A for the buck output.

The ISL8117DEMO2Z demonstration board is designed for high current applications. The current rating of the ISL8117DEMO2Z is limited by the FETs and inductor selected. The ISL8117 gate driver is capable of delivering up to 20A for the buck output as long as the proper FETs and inductor are provided.

Specifications

Manufacturer	Renesas Electronics Corporation
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	ISL8117DEMO2Z-ND
Eval Board Supplier	Renesas Electronics Corporation
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	12 V
Current Out	20 A
Voltage In	18 ~ 60 V
Efficiency @ Conditions	>95%, 60V in, 12V @ 12 ~ 20 A >95%, 48V in, 12V @ 7.2 ~ 20 A >95%, 36V in, 12V @ 5 ~ 20 A >95%, 24V in, 12V @ 2.8 ~ 20 A >95%, 18V in, 12V @ 1.2 ~ 20 A
Voltage Out Range	5 ~ 24 V
Features	Current Limit (Adj. or Fixed) Over Current Protection Over Voltage Protection Power Good Output PWM Interface Shoot-Through Protection (Overlap) Soft Start Synchronizable Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	100 kHz ~ 2 MHz
Standby Current [Typical]	5 µA
Quiescent Current [Typical]	2.5 mA
Component Count + Extras	55 + 8
Internal Switch	No
Design Author	Intersil
Application / Target Market	Factory Automation Lighting: LED Commercial Lighting Lighting: LED Home Lighting Lighting: LED Signage Security IP Camera Servers Telecom
Standby Current [Maximum]	10 µA
Quiescent Current [Maximum]	4 mA
Main I.C. Base Part	ISL8117
Date Created By Author	2015-04
Date Added To Library	2015-10