DATASHEET
ISL9237 FN8723
Rev.4.00
Oct 4, 2017 Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG
The ISL9237 is a buck-boost Narrow Output Voltage DC (NVDC)
charger utilizing Intersil’s advanced R3™ Technology to provide
high light-load efficiency, fast transient response and
seamless DCM/CCM transitions for a variety of mobile and
industrial applications. Features In Charge mode, the ISL9237 takes input power from a wide
range of DC power sources (conventional AC/DC charger
adapters, USB PD ports, travel adapters, etc.) and safely
charges battery packs with up to 3 cells in a series
configuration. System power monitor PSYS output, IMVP-8 compliant ISL9237 supports On-the-Go (OTG) function for 2-and 3-cell
battery applications. When OTG function is enabled, the
ISL9237 operates in the reverse Buck mode to provide 5V at
the USB port. Battery discharging current monitor (BMON) As a NVDC topology charger, it also regulates the system
output to a narrow DC range for stable system bus voltage. The
system power can be provided from the adapter, battery or a
combination of both. The ISL9237 can operate with only a
battery, only an adapter or both connected. For Intel IMVP8
compliant systems, the ISL9237 includes PSYS functionality,
which provides an analog signal representing total platform
power. The PSYS output will connect to a wide range of Intersil …
