LM5156QDSSRQ1

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LM5156QDSSRQ1

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Spezifikationen

Attribut Wert
Part Status Active
Output Type Transistor Driver
Function Step-Up, Step-Up/Step-Down
Output Configuration Positive
Topology Boost, Flyback, SEPIC
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 3.5V ~ 60V
Frequency - Switching 100kHz ~ 2.2MHz
Duty Cycle (Max) 93%
Synchronous Rectifier No
Clock Sync Yes
Control Features Current Limit, Enable, Frequency Control, Power Good, Soft Start
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case 12-WFDFN Exposed Pad
Supplier Device Package 12-WSON (3x2)
Base Product Number LM5156
Grade Automotive
Qualification AEC-Q100

Übersicht

Description

The LM5156QDSSRQ1 is a high-performance, synchronous buck controller designed for various power management applications, including automotive and industrial systems. It operates within a wide input voltage range of 4.5V to 60V, making it suitable for battery and distributed power systems. The device features an integrated gate driver that enables efficient power delivery, supporting output currents up to 10A.
Key highlights include its ability to operate in both peak current mode and voltage mode, providing flexibility in design. It also incorporates various protections, such as over-voltage, under-voltage, and thermal shutdown, ensuring reliable operation. The LM5156QDSSRQ1 supports adjustable switching frequencies up to 2MHz, allowing designers to optimize for efficiency and size.
Additionally, it offers advanced features like programmable soft-start, frequency compensation, and an enable pin for enhanced control. With its robust performance and numerous features, the LM5156QDSSRQ1 is a popular choice for high-efficiency power supply designs in demanding environments.

Equivalent

The LM5156QDSSRQ1 is a wide-input range buck controller. Equivalent products include the TPS563202, TPS563201, and LM2596, which also provide adjustable output and high efficiency. Other alternatives are the LM2675 and the LTC3780, depending on specific application requirements such as voltage range, current capacity, and features like integrated MOSFETs. Always check the datasheet for detailed specifications to ensure compatibility.

Features

The LM5156QDSSRQ1 is a high-performance buck converter designed for automotive applications. Key features include:
1. Wide Input Voltage Range: Operates from 3V to 60V, suitable for various automotive power systems.
2. High Efficiency: Achieves up to 95% efficiency, minimizing heat generation and extending battery life.
3. Integrated High-Side and Low-Side FETs: Reduces the need for external components, simplifying design.
4. Adjustable Output Voltage: The output voltage can be set from 0.8V to 15V, allowing flexibility for different applications.
5. High Switching Frequency: Supports up to 1.2 MHz, enabling the use of smaller inductors and capacitors.
6. Flexible Soft-Start: Programmable soft-start feature minimizes inrush current during startup.
7. Fault Protection: Incorporates features like over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown.
8. Automotive Qualification: Designed to meet AEC-Q100 standards, ensuring reliability in harsh automotive environments.
These features make the LM5156QDSSRQ1 ideal for powering automotive electronics, including sensors, displays, and communication devices.

Pinout

The LM5156QDSSRQ1 is a high-performance buck converter designed for automotive applications. It has a total of 16 pins.
Key functions of these pins include:
1. VIN: Power input for the converter.
2. SW: Switch node for inductor connection.
3. GND: Ground reference.
4. BOOT: Bootstrap capacitor connection for high-side gate drive.
5. PH: Phase node for the internal FETs.
6. COMP: Compensation network connection for stability.
7. CSN/ CSP: Current sense inputs for overcurrent protection.
8. SS: Soft-start pin to control startup timing.
9. RT: Resistor connection to set switching frequency.
10. FREQ: Frequency adjustment pin.
11. RAMP: External ramp capacitor connection.
12. EN: Enable pin for turning the device on/off.
13. CLMP: Output voltage clamp configuration.
14. VOUT: Feedback voltage sensing.
15. SENSE+ / SENSE-: Current sense inputs.
16. ISENSE: Additional current sensing input.
This configuration supports a wide range of automotive voltage and current requirements.

Manufacturer

The LM5156QDSSRQ1 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor design and manufacturing company headquartered in Dallas, Texas. Founded in 1930, TI is renowned for its development of a wide range of electronic components, including analog, digital signal processing (DSP), and embedded processing technologies. The company serves various markets, including industrial, automotive, communications, and consumer electronics.
The LM5156QDSSRQ1 specifically is a high-voltage, synchronous buck controller designed for various power management applications, including step-down converters. Texas Instruments is known for its commitment to innovation and quality in the semiconductor industry, providing solutions that enhance the performance and efficiency of electronic devices across many sectors.

Application

The LM5156QDSSRQ1 is a high-performance synchronous buck controller used primarily in automotive applications. Key application areas include:
1. Automotive Power Management: Efficiently regulates power for various automotive systems.
2. DC-DC Converters: Converts input voltage to lower output voltages required for electronic devices.
3. Battery Management Systems: Used in electric vehicles for battery charging and management.
4. Industrial Power Supplies: Provides regulated power in industrial automation systems.
5. Telecommunications: Supplies stable power for communication equipment.
Its features, such as high efficiency and wide input voltage range, make it suitable for these applications.

Package

The LM5156QDSSRQ1 is packaged in a 16-pin HTQFP (Thin Quad Flat Package) with a size of 4mm x 4mm. This package type is designed for automotive applications, offering good thermal performance and reliability.

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