LM3524DM

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LM3524DM

SWITCHING CONTROLLER, VOLTAGE-MO

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Specifications

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

Overview

Description

The LM3524DM is a versatile, high-performance PWM (Pulse Width Modulation) controller designed for DC-DC converter applications. It operates within a voltage range of 8V to 40V, making it suitable for various power supply designs. The device features dual outputs, allowing for both synchronous and asynchronous operation, which enhances its efficiency.
Key features of the LM3524DM include adjustable frequency operation, with a range typically from 100 kHz to 500 kHz, and integrated protection mechanisms such as under-voltage lockout (UVLO) and thermal shutdown. Its architecture supports a wide range of topologies, including buck, boost, and flyback converters.
The LM3524DM is particularly noted for its ease of use, enabling designers to implement robust power solutions with minimal external components. Its compact size and efficient design make it ideal for applications such as telecommunications, industrial equipment, and consumer electronics. Overall, the LM3524DM is a reliable choice for engineers looking to create efficient power conversion systems.

Features

The LM3524DM is a versatile integrated circuit designed for switching power supply applications. Key features include:
1. Dual Outputs: Configured as a voltage regulator, it can provide two regulated output voltages.
2. Output Current: Capable of handling up to 5A output current, making it suitable for high-power applications.
3. Voltage Regulation: Offers precise voltage regulation with an adjustable output voltage range.
4. Integrated PWM Control: Incorporates pulse-width modulation for efficient power conversion.
5. Wide Input Voltage Range: Operates over a broad input voltage range of 4.5V to 40V.
6. Thermal Shutdown Protection: Features built-in thermal shutdown to prevent overheating.
7. Adjustable Frequency: The frequency of operation can be adjusted via an external resistor.
8. Soft Start Functionality: Provides a soft start feature to minimize inrush current during startup.
These features make the LM3524DM suitable for various applications, including power supplies, battery chargers, and DC-DC converters.

Package

The LM3524DM is typically available in a Dual In-Line Package (DIP) format, specifically a 16-pin DIP package. This packaging facilitates easy integration into circuits and prototyping.

Pinout

The LM3524DM is a dual power controller with a total of 24 pins. It is designed for use in switching power supplies and provides various functionalities for efficient power management.
Pin Count: 24 Pins
Key Functions:
1. Oscillator: Generates a timing signal for switching.
2. Error Amplifiers: Two built-in amplifiers for feedback control.
3. PWM Control: Modulates the output voltage via pulse-width modulation.
4. Current Sensing: Monitors and regulates output current.
5. Voltage Reference: Provides a stable reference voltage for the control circuitry.
6. Dead Time Control: Allows setting the interval in which both switches are off to reduce crossover losses.
7. Shutdown Function: Enables disabling the device for power-saving modes.
The LM3524DM is ideal for designing various types of DC-DC converters and offers flexibility through its multiple functions and configurations.

Manufacturer

The LM3524DM is manufactured by Texas Instruments (TI), a leading American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits (ICs), including analog, digital signal processing (DSP), and embedded processor solutions. Founded in 1930, TI is well-known for its innovations in the electronics field and serves a diverse range of industries, including automotive, industrial, communications, and consumer electronics. The LM3524DM specifically is a versatile voltage regulator and control IC, commonly used in power management applications.

Application

The LM3524DM is a versatile power management IC used in various applications, including DC-DC converters, voltage regulation, battery chargers, and power supplies. It's suitable for driving switching power supplies, automotive electronics, and industrial power management systems. The chip's capability for adjustable frequency and duty cycle makes it ideal for efficient energy conversion in consumer electronics and renewable energy systems.

Equivalent

Equivalent products to the LM3524DM chip include the LM3524, TL494, and SG3524. These chips are commonly used for PWM and SMPS applications. While they may have slight variations in specifications, they generally offer similar functionality in voltage regulation and control. Always check the datasheets for specific pin configurations and performance characteristics before substitution.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

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