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