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The 20XS4200 device is part of a 24 V dual high side switch product family with integrated control, and a high number of protective and diagnostic functions. It has been designed for truck, bus, and industrial applications. The low RDS(on) channels (<20 mΩ) can control different load types; bulbs, solenoids, or DC motors. Control, device configuration, and diagnostics are performed through a 16-bit serial peripheral interface (SPI), allowing easy integration into existing applications. This device is powered by SMARTMOS technology

Both channels can be controlled individually by external/internal clock signals, or by direct inputs. Using the internal clock allows fully autonomous device operation. Programmable output voltage slew-rates (individually programmable) helps improve electromagnetic compatibility (EMC) performance. To avoid shutting off the device upon inrush current, while still being able to closely track the load current, a dynamic overcurrent threshold profile is featured. Switching current of each channel can be sensed with a programmable sensing ratio. Whenever communication with the external microcontroller is lost, the device enters a Fail-safe operation mode, but remains operational, controllable, and protected.

Features

?Two fully-protected 20 mΩ (@ 25 °C) high-side switches

?Up to 4.4 A steady state current per channel

?Separate bulb and DC motor latched overcurrent handling

?Individually programmable internal/external PWM clock signals

?Overcurrent, short-circuit, and overtemperature protection with programmable autoretry functions

?Accurate temperature and current sensing

?Openload detection (channel in OFF and ON state), also for LED applications (7.0 mA typ.)

?Normal operating range: 8.0 to 36 V, extended range: 6.0 to 58 V

?3.3 V and 5.0 V compatible 16-bit SPI port for device control, configuration and diagnostics at rates up to 8.0 MHz