LM5156DSSR

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LM5156DSSR

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2.2-MHZ WIDE VIN NONSYNCHRONOUS

  • FabricanteTexas Instruments

  • Peça do Fabricante #LM5156DSSR

  • Pacote WFDFN-12

  • Em Estoque2958

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Especificações

Atributo Valor
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputType Transistor Driver
Function Step-Up, Step-Up/Step-Down
OutputConfiguration Positive
Topology Boost, Flyback, SEPIC
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 2.97V ~ 60V
Frequency-Switching 100kHz ~ 2.2MHz
DutyCycle(Max) 93%
SynchronousRectifier No
ClockSync No
ControlFeatures Current Limit, Enable, Frequency Control, Power Good, Soft Start
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 12-WFDFN Exposed Pad

Visão Geral

Description

The LM5156DSSR is a highly integrated synchronous boost controller from Texas Instruments, designed for applications needing efficient power conversion. It is part of the LM5156 series and offers a wide input voltage range, making it suitable for a variety of industrial and automotive applications. The device supports both single-switch and dual-switch configurations, enhancing its versatility.
Key features include peak current mode control, which provides fast transient response and simplifies loop compensation. It also integrates features like programmable soft-start, frequency synchronization, and adjustable switching frequency, enhancing design flexibility. The LM5156DSSR includes robust protection mechanisms such as cycle-by-cycle current limit, thermal shutdown, and an open-circuit protection scheme, ensuring reliability and safety.
Moreover, the controller is AEC-Q100 qualified, indicating its suitability for automotive applications. It operates efficiently across a wide temperature range, making it ideal for challenging environments. With its compact size and advanced features, the LM5156DSSR is well-suited for boosting battery voltages and powering various high-power systems efficiently.

Equivalent

The LM5156DSSR is a boost controller. Equivalent products might include the LT3757 from Analog Devices, the TPS61175 from Texas Instruments, and the MAX1771 from Maxim Integrated. These alternatives are selected based on similar functionality and specifications. However, always check the specific application requirements and datasheets to ensure compatibility with your design.

Features

The LM5156DSSR is a highly efficient DC-DC boost converter with several key features:
1. Wide Input Voltage Range: It supports a wide input voltage ranging from 3.5V to 42V, making it versatile for various applications.

2. High Switching Frequency: The device offers adjustable switching frequency up to 2.2 MHz, which allows for the use of smaller passive components.
3. Integrated MOSFET: It contains integrated high-side MOSFETs, which helps in reducing the overall component count and improving efficiency.
4. Adjustable Output Voltage: The output voltage is adjustable, providing flexibility for different power supply needs.
5. Low Quiescent Current: It features low standby quiescent current, enhancing battery life in portable applications.
6. Soft Start: Soft start functionality is included to limit inrush current during startup.
7. Protection Features: The LM5156DSSR includes several protection features such as overvoltage protection, thermal shutdown, and cycle-by-cycle current limit.
8. Synchronization Capability: The device can be synchronized to an external clock, allowing for precise control in multiple converter systems.
These features make the LM5156DSSR suitable for automotive, industrial, and consumer electronics applications.

Pinout

The LM5156DSSR is a high-performance, boost controller IC with a total of 16 pins in a PowerPAD™ HTSSOP package. This IC is designed for applications that require a boost, SEPIC, or flyback topology. Here is a brief overview of the pin functions:
1. VIN: Input voltage supply.
2. EN: Enable pin to turn the IC on or off.
3. VCC: Output of the internal LDO regulator.
4. AGND: Analog ground.
5. RT: Resistor timing for setting the switching frequency.
6. COMP: Compensation pin for the error amplifier.
7. FB: Feedback voltage to regulate output voltage.
8. SS/TRK: Soft-start or tracking input.
9. PGOOD: Power good indication.
10. OV: Over-voltage protection input.
11. UVLO: Undervoltage lockout configuration.
12. SYNC: Synchronization input for external clock.
13. SW: Switch node.
14. DGND: Digital ground.
15. BOOT: Bootstrap supply for high-side driver.
16. HO: High-side gate drive output.
This pin configuration supports versatile control and monitoring functions suitable for various power management applications.

Manufacturer

The LM5156DSSR is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is a global semiconductor company that designs and manufactures a wide range of electronic components. Their products are used in various applications, including industrial, automotive, personal electronics, and communications. Texas Instruments is well-known for its analog and embedded processing products, which support innovation across diverse industries.

Application

The LM5156DSSR is a synchronous boost controller commonly used in applications requiring efficient voltage boosting. Key application areas include:
1. Automotive Systems: Provides power management solutions for electronic control units (ECUs) and infotainment systems.
2. Industrial Equipment: Used in powering sensors and control systems requiring voltage conversion.
3. Telecommunications: Supports infrastructure equipment needing stable voltage levels.
4. Consumer Electronics: Powers devices with varying power demands, such as battery-powered gadgets.
5. Medical Devices: Ensures reliable power supply to portable medical equipment.
6. Renewable Energy Systems: Boosts low voltages from solar panels or other renewable sources for efficient energy usage.
These applications benefit from the controller's high efficiency, wide input voltage range, and robust output regulation.

Package

The LM5156DSSR is a DC-DC boost converter from Texas Instruments, packaged in a VSSOP (Very Thin Shrink Small Outline Package) with 10 pins. This compact package is designed for efficient power management applications.

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