TPS54360BDDAR Detailed explanation of pin function specifications and circuit principle instructions
The part you’re asking about, "TPS54360BDDAR," is from Texas Instruments (TI), which specializes in analog, digital, and Power management s EMI conductors. Specifically, this part is a DC-DC buck converter, designed to provide efficient power conversion for a variety of applications.
Here's a breakdown of your request:
1. 封装和引脚数量 (Package and Pin Count):
The TPS54360BDDAR is available in a QFN (Quad Flat No-lead) package. This specific model has a 24-pin configuration. Package: 24-pin QFN, Size: 4mm x 4mm.2. 引脚功能及使用说明 (Pin Functions and Usage):
Below is a detailed table with the description of all 24 pins:
Pin No. Pin Name Pin Function Description 1 VIN Input voltage. Provides the main input voltage to the converter (typically 4.5V to 60V). 2 PGND Power Ground. Connects to the system ground to complete the circuit. 3 BOOT Bootstrap pin for high-side MOSFET driver. Connects a capacitor to provide voltage to the high-side driver. 4 PH Phase pin. Connects to the output inductor. This is the switching node for the high-side and low-side MOSFET. 5 SW Switch node. This is the connection for the internal MOSFET switches that are part of the buck converter. 6 VOUT Output voltage pin. Connect to the load that receives the regulated output voltage. 7 VCC Output for internal circuitry power supply. Typically a 5V or 3.3V voltage rail used to power the device itself. 8 SS/TR Soft-start and tracking pin. Used to set the soft-start period or track the voltage of another converter. 9 FB Feedback pin. Monitors the output voltage to regulate the buck converter's output voltage. 10 COMP Compensation pin. Used to stabilize the feedback loop by adding external components like capacitors and resistors. 11 EN Enable pin. Logic high enables the converter, logic low disables it (can be tied to a logic signal or ground). 12 NC No connection pin. Should be left unconnected in the circuit. 13 PGOOD Power Good output. Indicates whether the output voltage is within the specified range. Active high when output is good. 14 RT Timing resistor pin. Used to set the switching frequency of the converter via an external resistor. 15 SENSE+ Positive input for current sense. Used for current-mode control and overcurrent protection. 16 SENSE- Negative input for current sense. Completes the current-sensing loop for feedback control. 17 VOUTSENSE Voltage sensing for output voltage regulation. Provides accurate feedback for the output voltage. 18 SRADJ Synchronous Rectifier adjustment pin. Used for optimization and adjustment of the synchronous rectification. 19 AGND Analog ground. The ground reference for the analog portion of the device. 20 PGND Power Ground. Connects to the power return path for the device. 21 VC Control input for the error amplifier. Used to set the desired output voltage level. 22 OUTEN Output enable. Used to control whether the output is active or in shutdown mode. 23 SO Small signal output, typically used to monitor the internal circuit for feedback. 24 SPREAD Spread spectrum control pin. Used to adjust the switching frequency for electromagnetic interference (EMI) reduction.3. 引脚功能20个FAQ (20 FAQs on Pin Functions):
1. What is the input voltage range for the TPS54360BDDAR? The input voltage range is from 4.5V to 60V. 2. What should I connect to the PGND pin? The PGND pin should be connected to the system power ground. 3. What is the purpose of the PH pin? The PH pin is the phase connection for the switching node in the buck converter. 4. What is the function of the COMP pin? The COMP pin is used for feedback loop compensation to stabilize the output voltage. 5. How do I set the soft-start period? You set the soft-start period by connecting a capacitor to the SS/TR pin. 6. What does the VOUT pin do? The VOUT pin provides the output voltage for the load connected to the converter. 7. How can I monitor the output voltage? The feedback pin (FB) monitors the output voltage and ensures regulation. 8. How does the PGOOD pin work? The PGOOD pin indicates when the output voltage is within the specified range. 9. What is the maximum output current? The TPS54360BDDAR can handle up to 3A of continuous output current. 10. What is the function of the RT pin? The RT pin allows you to set the switching frequency by adding an external resistor. 11. What is the purpose of the VCC pin? The VCC pin supplies power to the internal circuitry of the device. 12. What is the significance of the SW pin? The SW pin is where the switching node connects to the internal MOSFET. 13. Can I disable the TPS54360BDDAR? Yes, by pulling the EN pin low, the device can be disabled. 14. What should I connect to the SENSE+ and SENSE- pins? These pins are used for current sensing and should be connected to the output inductor or load. 15. Can I use the TPS54360BDDAR for automotive applications? Yes, it is designed to work in automotive environments with input voltages from 4.5V to 60V. 16. How can I reduce EMI in my application? Use the SPREAD pin to enable spread-spectrum frequency modulation, reducing EMI. 17. What is the purpose of the SRADJ pin? The SRADJ pin adjusts the synchronous rectifier operation to optimize efficiency. 18. What type of capacitors should I use on the VIN and VOUT pins? High-quality ceramic capacitors are recommended for stable operation. 19. What is the recommended layout for the TPS54360BDDAR? A detailed layout guide is available in the datasheet, focusing on minimizing noise and ensuring thermal performance. 20. How can I protect the TPS54360BDDAR from overcurrent? Overcurrent protection is built into the device, and the current sensing pins (SENSE+ and SENSE-) monitor the load current.Let me know if you need additional details or further explanations!