LM3524DM

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LM3524DM

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SWITCHING CONTROLLER, VOLTAGE-MO

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Thông số kỹ thuật

thuộc tính Giá trị
Part Status Active
Output Type Transistor Driver
Function Step-Up, Step-Down
Output Configuration Positive or Negative
Topology Buck, Boost
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 8V ~ 40V
Duty Cycle (Max) 49%
Synchronous Rectifier No
Clock Sync No
Control Features Current Limit, Enable, Frequency Control
Operating Temperature 0°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154", 3.90mm Width)
Supplier Device Package 16-SOIC
Base Product Number LM3524

Tổng quan

Description

The LM3524DM is a versatile integrated circuit used primarily as a pulse-width modulation (PWM) controller for power supply applications, including DC-DC converters and battery chargers. It operates at a wide input voltage range, typically from 4.5V to 40V, making it suitable for various systems.
Key features include a built-in oscillator, adjustable duty cycle, and external sync capabilities. The LM3524DM provides multiple output configurations, including push-pull and single-ended outputs, allowing flexibility in design. Its precision voltage reference ensures stable operation, while its thermal shutdown and current limit protections enhance reliability.
This device is commonly used in automotive, industrial, and consumer electronics for applications requiring efficient power regulation. The LM3524DM's combination of features makes it an excellent choice for engineers designing robust power supply systems.

Equivalent

Equivalent products to the LM3524DM chip include the LM3524, TL494, and SG3524. These chips serve similar functions in switching power supply applications and offer features like adjustable duty cycle, voltage regulation, and oscillator capabilities. Always verify specifications, pin configurations, and performance characteristics before substitution.

Features

The LM3524DM is a versatile switching regulator controller designed for efficient power management in various applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 40V, accommodating diverse input sources.
2. Adjustable Output Voltage: Outputs can be set from 1.25V to 36V, allowing for flexibility in design.
3. High Efficiency: Designed for low power dissipation, ensuring efficient operation and thermal management.
4. Frequency Programmability: Offers adjustable switching frequencies from 100 kHz to 500 kHz, enabling optimization for specific applications.
5. Integrated Overcurrent Protection: Features a current limit circuit to protect against overload conditions.
6. Soft Start Function: Reduces inrush current at startup, enhancing system reliability.
7. Dual Output: Provides two outputs for powering multiple loads.
8. Thermal Shutdown: Automatically disables operation when overheating occurs, safeguarding the device.
Overall, the LM3524DM is ideal for power supply applications in automotive, industrial, and consumer electronics.

Pinout

The LM3524DM is a dual power supply controller and regulator integrated circuit, typically used in DC-DC converter applications. It features a total of 28 pins.
Key functions of the LM3524DM include:
- Voltage regulation: It can operate in both voltage mode and current mode, providing adjustable output voltages.
- Dual output: It supports two independent power supplies, making it versatile for multiple applications.
- PWM control: It utilizes pulse-width modulation for efficient power conversion.
- Protection features: Includes over-voltage and over-current protection to safeguard connected components.
The pin configuration includes inputs for power, feedback, control signals, and outputs for driving external transistors or other power components. The specific functions of each pin can be found in the datasheet, which provides detailed descriptions for application and design purposes.

Manufacturer

The LM3524DM is manufactured by Texas Instruments (TI), a prominent American technology company. Founded in 1930, TI is renowned for its semiconductor products and various electronic components, catering to a wide array of industries, including automotive, industrial, and consumer electronics.
Texas Instruments specializes in designing and manufacturing integrated circuits (ICs), analog chips, microcontrollers, and digital signal processors (DSPs), among other products. The LM3524DM, specifically, is a versatile timing and control integrated circuit often used for power management applications, such as voltage regulation and DC-DC converters.
TI is known for its innovation in the field of electronics, providing solutions that enhance the performance and efficiency of electronic devices. The company has a significant presence globally and is a key player in the semiconductor industry, committed to research and development to push the boundaries of technology.

Application

The LM3524DM is a versatile integrated circuit primarily used in power management applications. Its key application areas include:
1. Switching Regulators: It functions as a voltage regulator in DC-DC converters.
2. Pulse Width Modulation (PWM): Utilized in PWM controllers for efficient power conversion.
3. Battery Chargers: Supports charging circuits for various types of batteries.
4. Inverters: Used in DC to AC conversion applications.
5. LED Drivers: Implements control for LED lighting systems.
6. Telecommunication Equipment: Provides stable power supplies for communication devices.
Its adaptability makes it suitable for various electronic designs requiring power regulation and management.

Package

The LM3524DM is typically packaged in a dual in-line package (DIP) type, specifically a 16-pin DIP configuration. This package type is suitable for through-hole mounting in electronic circuits.

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