Power Semiconductors

Low Current Consumption in Industrial Applications with IFX52001 Constant Current Relay Driver

Application diagram of the IFX52001 integrated into a relay housing

Once mechanical relay switches and electromagnetic actuators (also known as solenoids) are turned on, current must continuously flow through their coils (hold current) to keep them on.
IFX52001 can reduce the hold current down to 40mA (without EMI) and thus cut overall current consumption. The coil current remains stable regardless of changes to the input voltage.

IFX52001 operates over an extended temperature range from -40°C to 125°C and with input voltages up to 45V, making it ideal for harsh industrial environments.

Available in a DSO8 exposed pad package, this device can be mounted on a PCB inside a relay or on an existing system PCB with either a high- or low-side switch, reducing design-in time and providing a migration path to an all-electronic switch design.

High coil activation current Low hold current Suited for both low- and high-side switches Thermally enhanced PG-DSO-8 exposed pad package

Relays (integrated into relay housing or mounted on system PCB) Electromagnetic actuators (e.g. electric door locks, appliances, hydraulic valves, speaker coils, power relays, pinball/pachinko machines)