TDE1737FPT

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TDE1737FPT are power management integrated circuit (PMIC)-power distribution switches, load drivers, that is available in 4-A Form-A and 7-A Form-B packages. A typical application would be for motor control, for instance in industries, transportation or home appliances. TDE1737FPT is the premier dual dirver from Dialog Sem. It is designed to deliver significant current with minimal power dissipation while switching between two output devices via two independent digital control signals.

The TDE1737FPT has a low power supply range (6 to 20V), a wide temperature range (-40°C to +105°C) and a wide control input range (0V to 12V). Additionally, this product is really helpful to manage a high current output and provide circuit protection; it also has a wide supply voltage range, it is suitable for different applications with different voltage. Furthermore, this device includes a shutdown option.

The device is capable of handling both high and low side switching, this increases flexibility and allows the usage of transistors in wide variety of applications. It also offers protection from thermal and ESD events. It is easy to use as it does not require external sequence monitoring. The device also offers an asymmetric control voltage for single-ended current control and independent current regulation.

In terms of its working principle, TDE1737FPT is a high-current low-saturation load driver with two independent outputs (Driver 1 and Driver 2). Each output is operated by its respective bias voltage supplied to pins 10 and 14, which control the current output (BIAS 1 and BIAS 2). The control voltages can be selected either in a differential (for high side switching) or single-ended (for low side switching) mode. This allows biased currents to be shared between both outputs. The bias voltage is shifted on the rising edge of the CP (Clock Process) signal, which is generated by other devices on the main bus.

The TDE1737FPT offers three protection circuits; a Vce Open Circuit protection circuit, an ESD protection circuit and a Pulse Current Protection circuit. The Vce Open Circuit protection circuit protects the device against voltage spikes. The ESD protection circuit protects the device from electrostatic discharge. Finally, the Pulse Current Protection circuit is designed to protect the device from over temperature, overvoltage and undervoltage conditions. The protection circuits are designed to allow the device to withstand up to 15V of transients on both the supply and output side.

In conclusion, the TDE1737FPT is an ideal product for motor control and current delivery applications in industries, transportation or home appliances. It offers wide temperature, supply voltage, and control input ranges and provides circuit protection from thermal and ESD events. The three protection circuits ensure the device is able to withstand up to 15V of transients on both the supply and output side. Furthermore, the independent current regulation of each output allows diverse design in a range of applications.

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