Power op-amp for automotive actuator drive
Each channel delivers up to 400 mA with a rail-to-rail output swing, making it a fit for solenoid valves, small DC motors, or actuator coils in engine-management or transmission-control modules. The 600 kHz gain-bandwidth product and 0.17 V/µs slew rate keep it in the low-frequency control-loop territory — not for audio or fast-switching paths, but adequate for PWM-driven loads up to a few kilohertz.
400 mA output — the spec that decides the fit
The headline number here is the 400 mA output per channel. That is an order of magnitude above a general-purpose op-amp like the TLV9362IDDFR (60 mA) or the OPA4374AIPWT (5 mA). If your BOM needs to drive a load that pulls a couple hundred milliamps — a proportional solenoid, a stepper coil, a heater element — the ALM2402QPWPRQ1 is the right class of part. The trade-off is bandwidth: the 600 kHz GBW and 0.17 V/µs slew rate are slow compared to those peers (TLV9362IDDFR runs 10.6 MHz, 25 V/µs), but that is the nature of a power amplifier — you trade speed for current delivery.
14-HTSSOP with exposed pad — layout gets a thermal requirement
The package is a 14-TSSOP with an exposed pad (14-HTSSOP). Without that, the part will hit thermal shutdown on a hot day.
For a production BOM that needs a qualified automotive power op-amp, this part is a current-design-in choice, not a legacy scavenge.