LA7791T-TLM-E

Product Overview

Category: Integrated Circuit (IC)

Use: The LA7791T-TLM-E is a versatile integrated circuit used in various electronic devices for controlling and managing power supply. It is commonly employed in applications such as consumer electronics, industrial equipment, and automotive systems.

Characteristics: - Compact size - Low power consumption - High efficiency - Wide operating voltage range - Robust protection features

Package: The LA7791T-TLM-E is available in a small outline package (SOP) with a total of 16 pins. This package ensures easy integration into different circuit designs and provides mechanical stability.

Essence: This IC serves as a crucial component in power management systems, enabling efficient control and regulation of power supply to various electronic components within a device.

Packaging/Quantity: The LA7791T-TLM-E is typically supplied in reels or tubes, with each reel containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

The LA7791T-TLM-E offers the following specifications:

Input Voltage Range: 2.5V to 5.5V
Output Voltage Range: 0.8V to VIN
Maximum Output Current: 1.5A
Operating Temperature Range: -40°C to +85°C
Standby Current: 0.1μA (typical)
Switching Frequency: 1.2MHz (typical)

Detailed Pin Configuration

The LA7791T-TLM-E features a 16-pin configuration. The pinout diagram and their functions are as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VIN | Input Voltage | | 2 | GND | Ground | | 3 | EN | Enable Control | | 4 | FB | Feedback Voltage | | 5 | COMP | Compensation | | 6 | SS | Soft-Start | | 7 | PGND | Power Ground | | 8 | SW | Switch Node | | 9 | LX | Inductor Connection | | 10 | VCC | Supply Voltage | | 11 | PG | Power Good | | 12 | OCP | Overcurrent Protection | | 13 | UVLO | Undervoltage Lockout | | 14 | CS | Current Sense | | 15 | SS/TR | Soft-Start/Tracking | | 16 | PGND | Power Ground |

Functional Features

The LA7791T-TLM-E offers the following functional features:

Wide Input Voltage Range: The IC can operate within a wide range of input voltages, making it suitable for various applications.
Efficient Power Conversion: It provides high efficiency power conversion, minimizing energy losses and maximizing battery life in portable devices.
Overcurrent Protection: The built-in overcurrent protection feature safeguards the circuit from excessive current flow, preventing damage to the IC and connected components.
Undervoltage Lockout: The undervoltage lockout function ensures that the IC operates only when the input voltage is above a certain threshold, enhancing system reliability.
Soft-Start Function: The soft-start feature allows for gradual ramp-up of the output voltage, reducing stress on the circuit during startup.

Advantages and Disadvantages

Advantages: - Compact size enables easy integration into space-constrained designs. - Low power consumption contributes to energy-efficient operation. - Wide operating voltage range enhances versatility. - Robust protection features ensure system reliability. - High efficiency minimizes energy losses.

Disadvantages: - Limited maximum output current may restrict usage in high-power applications. - Higher cost compared to some alternative models.

Working Principles

The LA7791T-TLM-E operates as a step-down (buck) DC-DC converter. It regulates the input voltage to a lower, desired output voltage using pulse-width modulation (PWM) techniques. The IC continuously monitors the feedback voltage and adjusts the duty cycle of the internal switch to maintain a stable output voltage.

Detailed Application Field Plans

The LA7791T-TLM-E finds application in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Automotive infotainment systems - Industrial control systems - LED lighting systems

Detailed and Complete Alternative Models

LA7792T-TLM-E: Similar to LA7791T-TLM-E with higher maximum output current (2A).
LA7790T-TLM-E: Similar to LA7791T-TLM-E with lower maximum output current (1

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LA7791T-TLM-E dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of LA7791T-TLM-E in technical solutions:

Q1: What is LA7791T-TLM-E? A1: LA7791T-TLM-E is a specific model of integrated circuit (IC) designed for use in technical solutions, particularly in power management applications.

Q2: What are the key features of LA7791T-TLM-E? A2: Some key features of LA7791T-TLM-E include low power consumption, high efficiency, built-in protection functions, and a wide input voltage range.

Q3: What are the typical applications of LA7791T-TLM-E? A3: LA7791T-TLM-E is commonly used in various technical solutions such as battery-powered devices, portable electronics, industrial automation, and automotive systems.

Q4: How does LA7791T-TLM-E help in power management? A4: LA7791T-TLM-E provides efficient power conversion, voltage regulation, and protection functions, ensuring stable and reliable power supply to connected devices or systems.

Q5: Can LA7791T-TLM-E handle different input voltages? A5: Yes, LA7791T-TLM-E has a wide input voltage range, allowing it to handle various input voltages typically encountered in technical solutions.

Q6: Does LA7791T-TLM-E have any built-in protection features? A6: Yes, LA7791T-TLM-E incorporates built-in protection functions such as overvoltage protection, overcurrent protection, and thermal shutdown to safeguard connected devices.

Q7: Is LA7791T-TLM-E suitable for automotive applications? A7: Yes, LA7791T-TLM-E is designed to meet the requirements of automotive systems, making it suitable for use in vehicles for power management purposes.

Q8: Can LA7791T-TLM-E be used in battery-powered devices? A8: Absolutely, LA7791T-TLM-E is commonly used in battery-powered devices due to its low power consumption and efficient power conversion capabilities.

Q9: Is LA7791T-TLM-E compatible with other ICs or microcontrollers? A9: Yes, LA7791T-TLM-E can be easily integrated with other ICs or microcontrollers as it supports standard communication interfaces and protocols.

Q10: Where can I find more information about LA7791T-TLM-E? A10: You can refer to the datasheet, technical documentation, or contact the manufacturer or distributor of LA7791T-TLM-E for more detailed information about its specifications and application guidelines.

Please note that the specific questions and answers may vary depending on the context and requirements of the technical solution.