Eight low-side channels with SPI control and diagnostics
The MAX4896ATP+T from Maxim Integrated is an 8-channel low-side power driver designed for driving relays, solenoids, and other inductive or resistive loads. Each of the eight N-channel outputs can sink up to 410 mA continuously, with a typical on-resistance of 3 ohms that keeps dissipation manageable on a 20-pin TQFN with exposed pad. The SPI interface handles channel control and status readback, including open-load detection, current limiting, and over-temperature fault reporting. A dedicated Status Flag output gives a hardware interrupt for fault conditions without polling the SPI bus.
Load supply and temperature range
The load supply operates from 2.7 V to 5.5 V. The -40°C to 125°C ambient temperature range qualifies the driver for industrial automation panels.
Package and mounting
The device is housed in a 20-TQFN with exposed pad (5 mm × 5 mm body). Surface-mount assembly with the exposed pad soldered to a thermal land on the PCB is required to reach the full 410 mA per channel without thermal derating.
Sourcing and lifecycle
ROHS3 compliant.
