Description:Support is limited to customers who have already adopted these products.The ISL9238A is a buck-boost Narrow Output Voltage DC (NVDC) charger. The ISL9238A provides the NVDC charging function, system bus regulation, and protection features for tablet, ultrabook, notebook, power bank, and any USB-C interface platform. Intersil’s advanced R3™ Technology is used to provide high light-load efficiency and fast transient response. In Charging mode the ISL9238A takes input power from a wide range of DC power source
Renesas provides a recommended PCB layout guide in the application note AN1995, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise and EMI.
The ISL9238AHRTZ can be configured for different battery chemistries by adjusting the voltage and current settings through the I2C interface. Renesas provides a battery configuration guide in the application note AN1996, which includes settings for common battery chemistries.
The ISL9238AHRTZ has an operating ambient temperature range of -40°C to +85°C. At higher temperatures, the device's performance may be affected, including reduced efficiency and increased power loss. Renesas provides thermal derating guidelines in the datasheet to ensure reliable operation.
The ISL9238AHRTZ has a built-in overcurrent protection feature that can be enabled through the I2C interface. The device can be configured to detect overcurrent conditions and respond by shutting down the charger or reducing the charge current to prevent damage to the battery or charger.
Yes, the ISL9238AHRTZ can be used in a multi-cell battery configuration. Renesas provides a multi-cell battery charging application note AN1997, which includes guidelines for configuring the device for multi-cell battery charging, including cell balancing and monitoring.
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ISL9238AHRTZ Overview
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