LM5021MM-2

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LM5021MM-2

IC OFFLINE SW MULT TOP 8VSSOP

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Discontinued at Digi-Key
OutputIsolation Isolated
InternalSwitch(s) No
Topology Flyback, Forward
Voltage-StartUp 20 V
Voltage-Supply(Vcc/Vdd) 8V ~ 30V
DutyCycle 50%
Frequency-Switching Up to 1MHz
FaultProtection Current Limiting, Over Load
ControlFeatures Frequency Control, Soft Start, Sync
OperatingTemperature -40°C ~ 125°C (TJ)
Package/Case 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
SupplierDevicePackage 8-VSSOP

概述

Description

The LM5021MM-2 is a highly integrated power management IC designed for isolated power supply applications, particularly in telecom and industrial systems. It provides a wide input voltage range and features a robust control mechanism for efficient power conversion. The device includes built-in switching regulators, which enable it to deliver high output power with minimal external components.
Key features include an adjustable output voltage, support for various topologies, and protection mechanisms such as over-voltage, under-voltage, and thermal shutdown. Its compact package and high efficiency make it suitable for applications where space and thermal management are critical. The LM5021MM-2 is ideal for use in isolated DC-DC converters, battery management systems, and other applications requiring reliable power distribution. Overall, it serves as a versatile solution for engineers seeking efficient and reliable power management solutions in their designs.

Features

The LM5021MM-2 is a high-performance, integrated power management IC designed for use in applications requiring efficient voltage regulation. Key features include:
1. Wide Input Voltage Range: Supports input voltages from 4.5V to 60V, making it suitable for various power supply applications.
2. Integrated Switching Regulator: Offers a step-down (buck) converter with a high efficiency of up to 95%, reducing power loss and heat generation.
3. Adjustable Output Voltage: The output voltage can be set within a range, providing flexibility for different applications.
4. Low Quiescent Current: Ensures minimal power consumption during idle states, enhancing overall efficiency.
5. Thermal Protection: Includes features like thermal shutdown to prevent overheating.
6. Current Limiting: Protects the device and load from overcurrent conditions.
7. Compact Package: Available in a surface-mount package, facilitating easy integration into space-constrained designs.
These features make the LM5021MM-2 ideal for automotive, industrial, and consumer electronics applications, where efficient power management is crucial.

Package

The LM5021MM-2 is packaged in a surface-mount SOIC-8 (Small Outline Integrated Circuit) package. This package type features eight pins and is designed for efficient thermal performance and compact PCB layout.

Pinout

The LM5021MM-2 is a voltage mode controller designed for use in switching power supply applications. It comes in a 16-pin TSSOP package.
Pin Count: 16 pins
Pin Functions:
1. VIN (Pin 1): Input voltage supply.
2. GND (Pin 2): Ground connection.
3. CSN (Pin 3): Current sense negative input.
4. CSP (Pin 4): Current sense positive input.
5. COMP (Pin 5): Compensation network connection.
6. RAMP (Pin 6): Ramp generator.
7. RSN (Pin 7): Reference sense negative input.
8. RSP (Pin 8): Reference sense positive input.
9. IOUT (Pin 9): Output current sense pin.
10. SS (Pin 10): Soft start control.
11. SYNC (Pin 11): Synchronization input.
12. VREF (Pin 12): Reference voltage output.
13. VFB (Pin 13): Feedback voltage input.
14. NDRV (Pin 14): Negative gate drive output.
15. PDRV (Pin 15): Positive gate drive output.
16. RT (Pin 16): Timing resistor input for frequency setting.
These functions enable the LM5021MM-2 to regulate voltage and manage power efficiently in various applications.

Manufacturer

The LM5021MM-2 is manufactured by Texas Instruments (TI), a well-known semiconductor company. Texas Instruments specializes in designing and manufacturing a wide range of analog and embedded processing products, including power management ICs, microcontrollers, and digital signal processors. Founded in 1930, TI has established itself as a leader in the electronics industry, serving various sectors such as automotive, industrial, communications, and consumer electronics. The LM5021MM-2 is a high-performance switching regulator that is part of TI's extensive portfolio aimed at providing efficient power solutions for various applications.

Application

The LM5021MM-2 is a high-voltage current-mode controller used in power supply applications. It is ideal for offline flyback converters, power adapters, and battery chargers. Its features enable efficient operation in various devices, including industrial equipment, consumer electronics, and telecommunications. The device supports multiple output configurations, making it suitable for applications requiring isolation and step-down voltage regulation.

Equivalent

The LM5021MM-2 is a high-voltage, current-mode PWM controller. Equivalent products include the LM5021 from Texas Instruments, the MC34063 from ON Semiconductor, and the TL494 from Texas Instruments. Other alternatives may include the UC3842 from Texas Instruments and the L5970D from STMicroelectronics, depending on specific application requirements. Always verify specifications for compatibility.

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