MAX22915EVKIT
製品概要
機能と利点
- Full and Easy Evaluation of MAX22915
- Per-Channel Active Current Limit at 1A (typ)/1.3A (max)
- Robust Operation with Wide Range Of Input Voltages and Load Conditions
- VMOK, FAULT, and READY LED Indications
- LED Indication of Channels Status and Faults
- Fast Inductive Load Demagnetization
- Per-Channel Open-wire, Overload, short-to-VDD, and Overcurrent Detection
- 7-Bit ADC to Monitor Chip Temperature, Per-Channel Output Current, or VDD Supply Voltage
- Supports SPI and SYNCH Watchdogs
- Communication Error Indication at SPIERR
- Pin Addressable and Daisy-Chain SPI Communication with On-Board USB2GPIO Interface
- −40°C to +125°C Temperature Range
- Transient Immunity according to IEC 61000-4-2 Surge and IEC 61000-4-5 ESD Standards
- Enhanced EFT and RF Conducted Immunity on Per-Channel Diagnostics with Switches On, Off, or Toggling at up to 131Hz
- Safe Operation with On-Board Digital Isolation, Functional Earth Connection and Y-cap
- Proven PCB Layout
- Fully Assembled and Tested
- Windows 10 or Newer Compatible Software
製品概要
This evaluation kit (EV kit) provides a proven design to evaluate the MAX22915, 8-channel high-switch with advanced diagnostics. The EV kit includes the MAX22915 evaluation board, a USB-C cable, and a graphical user interface (GUI) that provides communication from a PC to the EV kit through a USB port. The MAX22915 EV kit comes with a MAX22915AFG+ in a 50-pin 6mm × 7mm FC2QFN package, installed as U1. The EV kit can operate in multiple modes, which include addressable SPI mode with Analog Devices GUI, or through PMOD connector to interface with external MCUs and firmware, and daisy-chained SPI mode through two PMOD connectors with multiple devices connected in daisy-chain.
The GUI is compatible with Windows® 11 for exercising the features of the MAX22915 digital output. The EV kit software gives access to the full register map and diagnostic data, which allows individual control of the eight high-side switches. The EV kit software retrieves all the diagnostic information from the MAX22915, such as per-channel open-wire conditions with outputs on, off, or switching at up to 131Hz. Other diagnostic information includes the status of output channels, supply undervoltage alerts, global and per-channel overload alarms, temperature warnings, and other global fault alarms. In addition, the EV kit software configures the internal 7-bit ADC and executes continuous, on-demand or single measurement on supply voltage, per-channel load current or chip temperature.
The MAX22915 EV kit must be powered from an external +24V power supply and can consume up to 8A (typ) when fully loaded. The USB2GPIO interface, as well as the digital galvanic isolation, is powered from the USB-C port.
A single TVS diode on VDD protects all output channels against ±1kV/42Ω IEC 61000-4-5 surge transients. The MAX22915 EV kit is specified operate normally with its enhanced noise immunity to IEC 61000-4-4 EFT and IEC 61000-4-6 conducted RF.
Windows based GUI software is available for use with the EV kit and a user can download it from Analog Devices website. Windows 10 or newer Windows operating system is required to use the EV kit software.