ON45492
ON Semiconductor
26 V, 4-Channel Voltage Bus & 4-Channel High-Side Current Shunt Monitor
Package Type: QFN32 (4 mm × 4 mm, CASE 485CD)
The ON45492 is a high-performance monolithic IC designed to monitor bus voltages and high-side shunt currents on up to four high-voltage power supplies simultaneously. It translates and scales bus and shunt voltages up to **26 V** into a low-voltage domain and time-multiplexes measurements onto a single differential output for external ADCs. The device can be operated standalone (4 channels) or paired for up to 8 channels, offers very low power-down current, per-channel gain programmability via external resistors, fast settling time, and an adjustable output common-mode to match most ADC inputs. Ideal for power management in computers, graphics cards, battery chargers, and other multi-rail systems.
