Description:Power Switch ICs - Power Distribution 2-ch, 5.5-V, 4-A, 14-mΩ on-resistance load switch with adjustable rise time 8-SOT-5X3 -40 to 105
Texas Instruments provides a recommended PCB layout in the datasheet (Figure 23) and in the application note SLVA883. It's essential to follow these guidelines to minimize parasitic inductance and ensure proper operation.
The input capacitor value depends on the input voltage, output current, and desired ripple voltage. A general rule of thumb is to use a capacitor with a value between 1-10 μF, with a voltage rating at least 1.5 times the input voltage. TI's Webench Power Designer tool can also help with capacitor selection.
The TPS22996DRLR has a maximum output current rating of 6 A. However, the actual output current may be limited by the input voltage, output voltage, and thermal considerations. Be sure to check the device's thermal performance and power dissipation calculations to ensure reliable operation.
The TPS22996DRLR has built-in OCP and SCP features. To implement these features, connect the OCP pin to a resistor divider network that sets the current limit threshold. For SCP, connect the SCP pin to a capacitor that sets the short-circuit detection time. Refer to the datasheet and application notes for detailed implementation guidelines.
The EN (enable) pin is used to turn the device on or off. Connect the EN pin to a logic signal (e.g., from a microcontroller) to enable or disable the device. When EN is low, the device is in shutdown mode, and when EN is high, the device is enabled. Be sure to follow the recommended EN pin voltage and timing requirements.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
