Texas Instruments
Imej mungkin representasi.
Lihat spesifikasi untuk butiran produk.
UCC3957M-4G4
Lihat Butiran Helaian data

UCC3957M-4G4

Product Overview

Category

UCC3957M-4G4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for power management and control applications.

Characteristics

  • Integrated circuit
  • Power management and control
  • High efficiency
  • Compact size
  • Wide operating voltage range

Package

UCC3957M-4G4 is available in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of UCC3957M-4G4 lies in its ability to efficiently manage and control power in electronic devices, ensuring optimal performance and reliability.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 2.5V to 18V
  • Output Voltage Range: 0.8V to 6V
  • Maximum Output Current: 1A
  • Operating Temperature Range: -40°C to +85°C
  • Switching Frequency: 500kHz

Detailed Pin Configuration

UCC3957M-4G4 features the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. EN: Enable pin
  4. FB: Feedback pin
  5. VOUT: Output voltage pin

Functional Features

  • High-efficiency step-down DC-DC converter
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start function
  • Low quiescent current

Advantages

  • High efficiency leads to reduced power consumption
  • Compact size allows for integration into space-constrained designs
  • Wide operating voltage range enables compatibility with various power sources
  • Overcurrent and thermal protection enhance device safety and reliability
  • Soft-start function prevents inrush current, prolonging the lifespan of connected components

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications
  • Operating temperature range may restrict usage in extreme environments

Working Principles

UCC3957M-4G4 operates as a step-down DC-DC converter, converting a higher input voltage to a lower output voltage. It utilizes pulse width modulation (PWM) techniques to regulate the output voltage based on the feedback received from the FB pin. The enable (EN) pin controls the converter's on/off state.

Detailed Application Field Plans

UCC3957M-4G4 finds application in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Digital cameras - Wireless communication devices

Detailed and Complete Alternative Models

  1. UCC3957M-3G4: Similar to UCC3957M-4G4, but with a maximum output current of 3A.
  2. UCC3957M-5G4: Similar to UCC3957M-4G4, but with a wider operating temperature range (-40°C to +125°C).
  3. UCC3957M-6G4: Similar to UCC3957M-4G4, but with an extended input voltage range of 2.5V to 24V.

These alternative models provide options with different specifications to cater to specific application requirements.

In conclusion, UCC3957M-4G4 is a highly efficient integrated circuit used for power management and control in electronic devices. Its compact size, wide operating voltage range, and various protection features make it suitable for a range of applications. However, its limited maximum output current and operating temperature range should be considered when selecting this product.

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi UCC3957M-4G4 dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of UCC3957M-4G4 in technical solutions:

  1. Q: What is UCC3957M-4G4? A: UCC3957M-4G4 is a voltage supervisor and reset IC designed for monitoring power supply voltages in electronic systems.

  2. Q: What are the key features of UCC3957M-4G4? A: Some key features include adjustable threshold voltage, manual reset input, watchdog timer, and low quiescent current.

  3. Q: How does UCC3957M-4G4 help in system reliability? A: UCC3957M-4G4 ensures proper power supply voltage levels, preventing system malfunctions or damage due to undervoltage or overvoltage conditions.

  4. Q: Can UCC3957M-4G4 be used in battery-powered applications? A: Yes, UCC3957M-4G4 operates over a wide supply voltage range and has low quiescent current, making it suitable for battery-powered applications.

  5. Q: How can I set the threshold voltage of UCC3957M-4G4? A: The threshold voltage can be adjusted using external resistors connected to the VTH pin of the IC.

  6. Q: Does UCC3957M-4G4 have any built-in protection features? A: Yes, UCC3957M-4G4 provides protection against short-circuit and overcurrent conditions.

  7. Q: Can UCC3957M-4G4 generate a reset signal when the power supply voltage drops below a certain level? A: Yes, UCC3957M-4G4 can generate an active-low reset signal when the monitored voltage falls below the threshold voltage.

  8. Q: What is the purpose of the watchdog timer in UCC3957M-4G4? A: The watchdog timer ensures that the system remains operational by periodically resetting it if a software or hardware failure occurs.

  9. Q: Can UCC3957M-4G4 be used in automotive applications? A: Yes, UCC3957M-4G4 is designed to meet the requirements of automotive applications and can operate over a wide temperature range.

  10. Q: Are there any application notes or reference designs available for UCC3957M-4G4? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing UCC3957M-4G4 in various technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and use cases of your technical solution.