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TPS61122PWG4
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TPS61122PWG4

Product Overview

Category

The TPS61122PWG4 belongs to the category of integrated circuits (ICs) and specifically falls under the category of boost converters.

Use

This IC is primarily used for voltage boosting applications, where it efficiently steps up the input voltage to a higher output voltage level.

Characteristics

  • High efficiency: The TPS61122PWG4 offers high conversion efficiency, ensuring minimal power loss during voltage boosting.
  • Wide input voltage range: It can accept a wide range of input voltages, making it suitable for various applications.
  • Adjustable output voltage: The output voltage can be adjusted according to the specific requirements of the application.
  • Low quiescent current: The IC has a low quiescent current, reducing power consumption when not actively boosting the voltage.

Package

The TPS61122PWG4 is available in a small-sized package known as PowerPAD™ MSOP-10. This package provides thermal enhancement and ease of mounting on PCBs.

Essence

The essence of the TPS61122PWG4 lies in its ability to efficiently boost input voltages to higher levels, enabling the operation of devices that require higher voltage levels than the available input.

Packaging/Quantity

The TPS61122PWG4 is typically sold in reels or tubes, with each reel/tube containing a specified quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 2.7V to 18V
  • Output Voltage Range: Adjustable from 3.3V to 30V
  • Switching Frequency: Up to 1.2MHz
  • Quiescent Current: 50µA (typical)
  • Operating Temperature Range: -40°C to +85°C
  • Package Type: PowerPAD™ MSOP-10

Detailed Pin Configuration

The TPS61122PWG4 has the following pin configuration:

  1. VIN: Input voltage pin
  2. EN: Enable pin (active high)
  3. FB: Feedback pin for output voltage regulation
  4. GND: Ground pin
  5. LX: Switching node pin
  6. SW: Switching node pin
  7. VOUT: Output voltage pin
  8. PGND: Power ground pin
  9. SS/TR: Soft-start/Tracking pin
  10. VDD: Supply voltage pin

Functional Features

  • Voltage Boosting: The TPS61122PWG4 efficiently boosts the input voltage to a higher output voltage level.
  • Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider network connected to the FB pin.
  • Soft-Start Function: The IC incorporates a soft-start function to limit inrush current during startup, ensuring a smooth and controlled voltage ramp-up.
  • Overcurrent Protection: The TPS61122PWG4 includes overcurrent protection to safeguard against excessive current flow.

Advantages and Disadvantages

Advantages

  • High efficiency conversion
  • Wide input voltage range
  • Adjustable output voltage
  • Low quiescent current
  • Small package size for easy integration

Disadvantages

  • Limited maximum output current capability
  • Requires external components for proper operation

Working Principles

The TPS61122PWG4 operates as a boost converter by utilizing an internal switch to control the energy transfer from the input to the output. When the switch is closed, energy is stored in an inductor, and when it opens, the stored energy is transferred to the output through a diode. This process allows for voltage boosting.

Detailed Application Field Plans

The TPS61122PWG4 finds applications in various fields, including but not limited to: - Battery-powered devices - Portable electronic devices - LED backlighting systems - LCD displays - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TPS61122PWG4 include: - TPS61123PWG4 - TPS61125PWG4 - TPS61126PWG4 - TPS61127PWG4

These alternative models may have slight differences in specifications or package types, but they serve the same purpose of voltage boosting.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af TPS61122PWG4 i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of TPS61122PWG4 in technical solutions:

  1. Q: What is TPS61122PWG4? A: TPS61122PWG4 is a boost converter IC (integrated circuit) designed for driving white LEDs in backlight applications.

  2. Q: What is the input voltage range of TPS61122PWG4? A: The input voltage range of TPS61122PWG4 is typically between 2.7V and 18V.

  3. Q: What is the maximum output current of TPS61122PWG4? A: The maximum output current of TPS61122PWG4 is typically 30mA.

  4. Q: Can TPS61122PWG4 be used to drive RGB LEDs? A: No, TPS61122PWG4 is specifically designed for driving white LEDs and may not be suitable for RGB LED applications.

  5. Q: Does TPS61122PWG4 have built-in over-temperature protection? A: Yes, TPS61122PWG4 has built-in thermal shutdown protection to prevent overheating.

  6. Q: Can TPS61122PWG4 operate in dimming mode? A: Yes, TPS61122PWG4 supports PWM (Pulse Width Modulation) dimming control for adjusting the brightness of the LEDs.

  7. Q: What is the typical efficiency of TPS61122PWG4? A: The typical efficiency of TPS61122PWG4 is around 85% to 90%, depending on the operating conditions.

  8. Q: Is TPS61122PWG4 suitable for battery-powered applications? A: Yes, TPS61122PWG4 has a low quiescent current and can be used in battery-powered applications to maximize battery life.

  9. Q: Can TPS61122PWG4 handle high voltage transients? A: Yes, TPS61122PWG4 has built-in input voltage surge protection to handle high voltage transients.

  10. Q: What is the package type of TPS61122PWG4? A: TPS61122PWG4 is available in a small 20-pin TSSOP (Thin Shrink Small Outline Package) package.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.