The TLV61046ADBVR is a product from Texas Instruments. It is a DC-DC converter in a package of 6 pins, typically used for power management applications.
Detailed Pin Function Specifications & Circuit Principle Instructions for TLV61046ADBVR
Package Type:
Package Type: 6-Pin VSSOP (Very Thin Shrink Small Outline Package)Pinout Details and Functions:
Here is a detailed list of the pin functions for the TLV61046ADBVR:
Pin Number Pin Name Pin Function Description 1 VIN (Input Voltage) This is the input voltage pin where the DC supply is applied. The voltage must be within the specified range of 2.3V to 5.5V. The voltage is directly used to power the internal circuitry and to generate the output voltage. 2 EN (Enable) The enable pin is used to turn the IC on and off. If the EN pin is pulled high (typically above 1.6V), the device will be enabled and begin operation. If it is pulled low (below 0.4V), the device is disabled, and the output will be turned off. This pin can be connected to a logic signal to control the operation of the device. 3 SW (Switch) The switch pin is where the inductor is connected. This pin is responsible for switching the voltage from the input to the inductor, controlling the energy transfer in the switching regulator circuit. It is a high-current output pin and typically works in a pulse-width modulation (PWM) mode to regulate the output voltage. The voltage on this pin alternates between high and low levels, depending on the switching cycle. 4 GND (Ground) This is the ground pin for the device, and all components in the circuit should be referenced to this pin. It is the return path for the current, and it must be properly connected to the system ground for proper operation. 5 VOUT (Output Voltage) The output voltage pin is where the regulated output voltage is supplied to the load. This voltage is determined by the feedback loop and the configuration of the external components (resistor divider). The output voltage should be within the specified range for the correct operation of the load. 6 FB (Feedback) This is the feedback pin used to sense the output voltage. A voltage divider (typically made of two resistors) is used between this pin and the output pin to set the desired output voltage. The feedback pin provides the input to the internal control loop, helping regulate the output voltage within a specific range. It must be connected for proper regulation of the output voltage.Detailed Pin Function Descriptions:
VIN (Pin 1): This pin is where the input voltage is supplied. The voltage range for this pin is typically between 2.3V to 5.5V. Applying a voltage within this range powers the IC and allows it to perform the voltage conversion process.
EN (Pin 2): The EN (Enable) pin allows for turning the IC on and off. When a high logic signal (above 1.6V) is applied to this pin, the IC operates. When a low logic signal (below 0.4V) is applied, the IC shuts down, reducing power consumption.
SW (Pin 3): The SW pin is where the switching action occurs. It is typically connected to an external inductor to store energy during the switching cycle. The pulse-width modulation (PWM) switching on this pin is what regulates the output voltage.
GND (Pin 4): The GND pin serves as the reference point for the entire device. All external components should have their ground connected to this pin. It provides the return path for current and is crucial for stable device operation.
VOUT (Pin 5): The VOUT pin provides the regulated output voltage. The voltage at this pin is determined by the feedback mechanism that sets the output voltage level. This pin delivers the converted voltage to the load.
FB (Pin 6): The FB (Feedback) pin is used to monitor the output voltage. An external resistor network is typically connected between the FB pin and the output to control the desired output voltage level. This pin is essential for the feedback loop and for the IC to maintain stable operation.
Pin Function FAQ:
What is the input voltage range for the TLV61046ADBVR? The input voltage range is from 2.3V to 5.5V. What is the purpose of the EN pin on the TLV61046ADBVR? The EN pin is used to enable or disable the IC. A high signal (above 1.6V) enables the IC, while a low signal (below 0.4V) disables the IC. What is the function of the SW pin on the TLV61046ADBVR? The SW pin is connected to an external inductor and controls the switching operation of the DC-DC converter. How should the GND pin be connected? The GND pin must be connected to the system ground to ensure proper current return. What voltage is present at the VOUT pin? The VOUT pin provides the regulated output voltage determined by the feedback network. What is the role of the FB pin? The FB pin senses the output voltage and regulates the conversion process through a feedback loop, ensuring the output voltage is maintained. Can the TLV61046ADBVR be used with a higher input voltage? No, the input voltage must remain between 2.3V and 5.5V for proper operation. What external components are required for operation? External components such as inductors, capacitor s, and resistors for feedback must be used to set the output voltage. What is the typical switching frequency of the TLV61046ADBVR? The switching frequency is typically 1.5 MHz.Can the TLV61046ADBVR be used for high-current applications?
No, it is designed for low-power applications with a maximum output current typically up to 600mA.What happens if the EN pin is left floating?
The EN pin should not be left floating. If it is, the IC may unintentionally turn on or off due to noise or improper signal.Can the output voltage be adjusted?
Yes, the output voltage can be adjusted by changing the resistor network connected to the FB pin.What type of feedback is used in the TLV61046ADBVR?
The IC uses a voltage feedback loop to regulate the output voltage.What is the maximum output voltage of the TLV61046ADBVR?
The maximum output voltage is typically set by the external feedback components, but it can be adjusted up to a maximum of 5V.Is thermal management required for the TLV61046ADBVR?
Yes, proper PCB design with sufficient copper area is needed to dissipate heat, especially for high-current applications.What are the key advantages of the TLV61046ADBVR?
Key advantages include low quiescent current, high efficiency, and compact 6-pin packaging.How does the TLV61046ADBVR protect against overcurrent?
The IC includes internal protection mechanisms such as current limiting to prevent damage in the case of overcurrent situations.What is the output ripple for the TLV61046ADBVR?
The output ripple is typically low but depends on the external components such as capacitors and inductors.Can the TLV61046ADBVR be used with a 5V input?
Yes, it can be used with a 5V input voltage, and the output will be regulated accordingly.How do I disable the TLV61046ADBVR?
The TLV61046ADBVR can be disabled by pulling the EN pin low (below 0.4V).The full pin function details and FAQs give a comprehensive understanding of the TLV61046ADBVR's operation and are essential for its correct application in power management circuits.