VNB10N07TR-E

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VNB10N07TR-E is a power distribution switch, load driver and current limiter. It provides a direct channel from a power supply source to a load device and is a specialized form of non-isolated full bridge driver for use in portable systems. It is also suitable for driving white LED backlights, as well as for low-side load switches.

VNB10N07TR-E is a low-side switch driver with an integrated current sense current limiter, providing tight current regulation over the full output voltage range. An integrated low voltage reference ensures current accuracy over supply and temperature variations. The device can handle voltages up to 28 V and can deliver up to 3 A of continuous current.

The main feature of VNB10N07TR-E is that it can drive an external P-FET to switch the load current directly, allowing the design to introduce a series sensing resistor between the external P-FET and the load for current control rather than monitoring the voltage drop across the external P-FET.

This feature offers a more accurate current control, as well as improved transient response compared to conventional current sense schemes, making it ideal for driving white LED backlights and for loading applications such as battery powered systems.

VNB10N07TR-E utilizes a buck topology with an adjustable peak current set-point and provides both remote load voltage sensing and current sensing. When driving a power switch, an external reference voltage and a comparator input are provided and can be adjusted to achieve the desired current set-point.

The output current can be set over a wide range, allowing the part to control currents up to the rated V IN supply voltage and the peak current levels. The external resistor divider can be used to adjust the peak current set-point to any value, depending on the application requirements.

The device operates in buck mode as long as the output voltage is lower than the internal detected reference voltage. When the output voltage exceeds the reference voltage, the current is regulated back to the peak current set-point via the external resistor divider.

In addition to providing a high power capability, VNB10N07TR-E is designed for high efficiency over a wide input voltage range. It supports a wide input voltage range of 4.5 V to 28 V and requires very low supply current, with the entire device consuming less than 8 mA at a 28 V input voltage.

To ensure reliable operation in noisy environments, VNB10N07TR-E includes a digital soft-start and undervoltage lockout function. This ensures that the device will not operate until it is properly powered and that it will not generate unmanageable current levels when power is first applied. It also has a selectable frequency option, allowing for switching frequencies up to 1 MHz.

VNB10N07TR-E is designed for easy implementation and customization, and is ideal for a wide range of applications such as battery powered systems, power switches, white LED backlights, and load switches. Overall, it is an excellent choice for high power, high reliability, and efficient power control.

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