TPS63700DRCR Detailed explanation of pin function specifications and circuit principle instructions
The TPS63700DRCR is a part number for a Power management IC manufactured by Texas Instruments (TI). Specifically, it is a part of their TPS63700 series, which offers DC-DC converters, often used for applications like portable devices and embedded systems.
Package and Pin Count
Package Type: The package for this specific model, TPS63700DRCR, is VQFN (Very Thin Quad Flat No-lead) which comes with 24 pins.Detailed Pin Function Specifications and Circuit Principle
Below is a detailed description of the pins and their functions for the TPS63700DRCR, based on the VQFN-24 package.
Pinout and Pin Function List (24 pins) Pin Number Pin Name Pin Function Description 1 VIN Input Voltage. This pin is used to provide the input voltage to the IC. The input voltage should be in the range of 3.0V to 6.0V. 2 EN Enable pin. Used to enable or disable the IC. A logic high signal enables the IC; a logic low disables the IC. 3 PGND Power Ground. This pin provides the ground for the power section of the IC. 4 VOUT Output Voltage. This pin provides the regulated output voltage for the application. 5 VOUTSENSE Output Voltage Sense. This pin is used to sense the output voltage to ensure proper regulation. 6 FB Feedback Pin. Used to feedback the output voltage to the IC for proper voltage regulation. 7 ISEN+ Current Sense Positive Input. This pin is used to sense the current flowing through the inductor, enabling current-mode control. 8 ISEN- Current Sense Negative Input. This pin works with ISEN+ to sense current in the system. 9 VBIAS Bias Voltage. Used to provide a stable bias voltage to the internal circuitry. 10 GND Ground. This is the common ground for the entire IC. 11 SW Switch Pin. This pin is connected to the switching transistor inside the IC and controls the high-side switch. 12 VOUT_CAP Output capacitor Pin. This pin is used to connect an output capacitor to stabilize the output voltage. 13 PGOOD Power Good. Indicates whether the output voltage is within the desired range. When the voltage is within the specified limits, this pin is high. 14 SGND Signal Ground. This pin is the ground reference for the signal section of the IC. 15 ISET Current Setting Pin. This pin sets the current threshold for current limiting. 16 MODE Mode Pin. Used to select the operating mode of the IC (e.g., burst mode, forced PWM mode). 17 ILIM Current Limiting Pin. This pin is used to set the current limiting threshold for the power converter. 18 VPULLUP Pull-Up Voltage for feedback or control. Used to pull up certain signals. 19 OC_FAULT Over-Current Fault Pin. This pin indicates when the IC has detected an overcurrent fault. 20 TEMP Temperature Pin. Monitors the temperature of the IC to prevent overheating. 21 SYNC Synchronization Pin. Used to synchronize the IC to an external clock if needed. 22 REFIN Reference Input Pin. Used to input an external reference voltage for precision control. 23 VREG Regulator Pin. Provides a regulated voltage for other circuits in the system. 24 VOUT_CAP2 Secondary Output Capacitor Pin. Used to further stabilize the output voltage.20 FAQ about TPS63700DRCR
1. What is the input voltage range for TPS63700DRCR? The input voltage range for TPS63700DRCR is from 3.0V to 6.0V. 2. How do I enable or disable the TPS63700DRCR? The EN pin should be driven high to enable the IC, and driven low to disable the IC. 3. Can I use the TPS63700DRCR without a feedback resistor network? No, the FB pin requires a feedback resistor network to regulate the output voltage. 4. What is the recommended output capacitor for stable operation? A high-quality output capacitor should be connected to the VOUT_CAP pin for proper voltage regulation. 5. How do I know if the output voltage is within regulation limits? The PGOOD pin indicates the power status. If the output voltage is within the desired limits, the PGOOD pin will be high. 6. What is the function of the ISEN+ and ISEN- pins? The ISEN+ and ISEN- pins are used to sense the current flowing through the inductor, enabling current-mode control. 7. Can I set the output voltage of the TPS63700DRCR manually? Yes, the FB pin allows you to set the output voltage using an appropriate resistor divider. 8. What happens if the output voltage goes outside the desired range? The PGOOD pin will indicate a fault if the output voltage is outside of the specified range. 9. Is there a current limiting feature in the TPS63700DRCR? Yes, the ILIM pin is used to set the current limiting threshold to protect the system. 10. How does the TEMP pin work? The TEMP pin monitors the temperature of the IC to prevent overheating. If the temperature exceeds safe limits, the IC may shut down or enter a fault condition. 11. What is the function of the SYNC pin? The SYNC pin is used to synchronize the IC to an external clock if needed for specific applications. 12. What is the MODE pin used for? The MODE pin selects the operating mode of the IC, such as burst mode or forced PWM mode, based on your application needs. 13. Can the TPS63700DRCR operate in burst mode? Yes, the IC can operate in burst mode depending on the configuration of the MODE pin. 14. What is the purpose of the REFIN pin? The REFIN pin is used to input an external reference voltage for precision control of the output. 15. How can I reduce the noise in the output of the TPS63700DRCR? Adding proper output capacitors at VOUTCAP and VOUTCAP2 can help reduce noise and provide stable output voltage. 16. How do I set the current threshold for the IC? The current threshold is set through the ISET pin. 17. Can I connect the SW pin directly to an external inductor? Yes, the SW pin is used to connect the switching transistor, which is responsible for controlling the inductor current. 18. How should I connect the GND and PGND pins? The GND pin is the signal ground, while the PGND pin should be connected to the power ground. Proper PCB layout should ensure low-impedance connections for both grounds. 19. How does the VBIAS pin affect the operation? The VBIAS pin provides a stable bias voltage that powers the internal circuits of the IC. 20. What should I do if I encounter an overcurrent condition? If an overcurrent is detected, the OC_FAULT pin will indicate the fault, and the IC may enter a fault condition. You may need to check the load and adjust the current limits accordingly.This should cover the pinout details, functionality, and common queries related to the TPS63700DRCR in an organized manner.
