A Comprehensive Guide to LTC7815EUHF#TRPBF DC DC Switching Controller

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Published: 06 March 2024 | Last Updated: 06 March 2024

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LTC7815EUHF#TRPBF

LTC7815EUHF#TRPBF

Linear Technology/Analog Devices

38 Terminals 4.5V~38V 38-Pin LTC7815 DC to DC converter IC SWITCHING CONTROLLER 3 Outputs 320kHz~2.25MHz Transistor Driver

Purchase Guide

38 Terminals 4.5V~38V 38-Pin LTC7815 DC to DC converter IC SWITCHING CONTROLLER 3 Outputs 320kHz~2.25MHz Transistor Driver

This technical article provides an in-depth analysis of the LTC7815EUHF#TRPBF DC DC switching controller by Linear Technology/Analog Devices. It covers the product description, features, applications, reference designs, alternative parts, and FAQs, offering valuable insights for electronic engineers and designers.

Product Introduction

1. Description:
The LTC7815EUHF#TRPBF is a versatile DC DC switching controller designed for step-up and step-up/step-down applications. It is a part of the LTC7815 series and features a compact 38-WFQFN exposed pad package suitable for surface mount applications. With a wide input voltage range of 4.5V to 38V and three output channels, this controller offers flexibility and efficiency in power management solutions. The LTC7815EUHF#TRPBF operates in a current-mode control mode with pulse width modulation (PWM) technique, providing precise regulation and high performance.

2. Features:
- Three output channels for enhanced functionality
- Wide input voltage range of 4.5V to 38V
- Output voltage range from 0.8V to 60V
- Current-mode control with PWM for accurate regulation
- Buck, buck-boost, and boost configurations for versatile applications
- Synchronous rectifier for improved efficiency
- Compact 38-WFQFN package for space-constrained designs
- Control features include power good, soft start, and tracking

3. Applications:
Primary Applications:
- Industrial power supplies
- Telecom infrastructure
- Automotive electronics
- Battery-powered systems
- LED lighting

Secondary Applications:
- Consumer electronics
- Medical devices
- Renewable energy systems
- Robotics
- IoT devices

Applicable Specific Modules:
- Power management modules
- Voltage regulation modules
- DC DC converter modules
- Power distribution modules

4. Reference Designs:
The LTC7815EUHF#TRPBF DC DC switching controller is commonly used in various reference designs to showcase its capabilities in different applications. Some popular reference designs include:
- High-efficiency industrial power supply
- Automotive voltage regulator
- LED driver with dimming control
- Battery charging system
- Solar power optimizer

5. Alternative Parts:
In case the LTC7815EUHF#TRPBF is not available or does not meet specific requirements, engineers can consider alternative parts with similar features and performance. Some alternative parts to LTC7815EUHF#TRPBF include:
- LTC3815
- LT3757
- LTC3892
- LT8582

6. FAQs:
Q: What is the maximum output voltage of the LTC7815EUHF#TRPBF?
A: The LTC7815EUHF#TRPBF can provide a maximum output voltage of 60V, offering versatility in various applications.

Q: Does the LTC7815EUHF#TRPBF support synchronous rectification?
A: Yes, the LTC7815EUHF#TRPBF features synchronous rectification for improved efficiency and performance.

Q: What is the operating temperature range of the LTC7815EUHF#TRPBF?
A: The LTC7815EUHF#TRPBF has an operating temperature range of 0°C to 85°C, making it suitable for a wide range of environments.

In conclusion, the LTC7815EUHF#TRPBF DC DC switching controller is a reliable and efficient solution for power management applications. With its versatile features, wide input voltage range, and compact package, it caters to diverse industry needs. Engineers can explore its applications, reference designs, and alternative parts to optimize their designs and enhance performance.

Specifications

Linear Technology/Analog Devices LTC7815EUHF#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology/Analog Devices LTC7815EUHF#TRPBF.
  • Type
    Parameter
  • Lifecycle Status

    Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.

    PRODUCTION (Last Updated: 1 month ago)
  • Factory Lead Time
    16 Weeks
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    38-WFQFN Exposed Pad
  • Surface Mount

    having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

    YES
  • Number of Pins
    38
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    0°C~85°C TJ
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tape & Reel (TR)
  • Published
    2018
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    1 (Unlimited)
  • Number of Terminations
    38
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    QUAD
  • Terminal Pitch

    The center distance from one pole to the next.

    0.5mm
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    LTC7815
  • Function

    The parameter "Function" in electronic components refers to the specific role or purpose that the component serves within an electronic circuit. It defines how the component interacts with other elements, influences the flow of electrical signals, and contributes to the overall behavior of the system. Functions can include amplification, signal processing, switching, filtering, and energy storage, among others. Understanding the function of each component is essential for designing effective and efficient electronic systems.

    Step-Up, Step-Up/Step-Down
  • Number of Outputs
    3
  • Output Type

    The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.

    Transistor Driver
  • Input Voltage-Nom

    Input Voltage-Nom refers to the nominal or rated input voltage that an electronic component or device is designed to operate within. This parameter specifies the voltage level at which the component is expected to function optimally and safely. It is important to ensure that the actual input voltage supplied to the component does not exceed this nominal value to prevent damage or malfunction. Manufacturers provide this specification to guide users in selecting the appropriate power supply or input voltage source for the component. It is a critical parameter to consider when designing or using electronic circuits to ensure reliable performance and longevity of the component.

    12V
  • Analog IC - Other Type

    Analog IC - Other Type is a parameter used to categorize electronic components that are integrated circuits (ICs) designed for analog signal processing but do not fall into more specific subcategories such as amplifiers, comparators, or voltage regulators. These ICs may include specialized analog functions such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), voltage references, or signal conditioning circuits. They are typically used in various applications where precise analog signal processing is required, such as in audio equipment, instrumentation, communication systems, and industrial control systems. Manufacturers provide detailed specifications for these components to help engineers select the most suitable IC for their specific design requirements.

    SWITCHING CONTROLLER
  • Output Configuration

    Output Configuration in electronic components refers to the arrangement or setup of the output pins or terminals of a device. It defines how the output signals are structured and how they interact with external circuits or devices. The output configuration can determine the functionality and compatibility of the component in a circuit design. Common types of output configurations include single-ended, differential, open-drain, and push-pull configurations, each serving different purposes and applications in electronic systems. Understanding the output configuration of a component is crucial for proper integration and operation within a circuit.

    Positive
  • Voltage - Supply (Vcc/Vdd)

    Voltage - Supply (Vcc/Vdd) is a key parameter in electronic components that specifies the voltage level required for the proper operation of the device. It represents the power supply voltage that needs to be provided to the component for it to function correctly. This parameter is crucial as supplying the component with the correct voltage ensures that it operates within its specified limits and performance characteristics. It is typically expressed in volts (V) and is an essential consideration when designing and using electronic circuits to prevent damage and ensure reliable operation.

    4.5V~38V
  • Control Features

    Control features in electronic components refer to specific functionalities or characteristics that allow users to manage and regulate the operation of the component. These features are designed to provide users with control over various aspects of the component's performance, such as adjusting settings, monitoring parameters, or enabling specific modes of operation. Control features can include options for input/output configurations, power management, communication protocols, and other settings that help users customize and optimize the component's behavior according to their requirements. Overall, control features play a crucial role in enhancing the flexibility, usability, and performance of electronic components in various applications.

    Power Good, Soft Start, Tracking
  • Input Voltage (Min)

    Input Voltage (Min) is a parameter in electronic components that specifies the minimum voltage level required for the component to operate properly. It indicates the lowest voltage that can be safely applied to the component without causing damage or malfunction. This parameter is crucial for ensuring the reliable and safe operation of the component within its specified operating range. It is important for designers and engineers to consider the minimum input voltage requirement when selecting and using electronic components in their circuits to prevent potential issues such as underperformance or failure.

    4.5V
  • Topology

    In the context of electronic components, "topology" refers to the arrangement or configuration of the components within a circuit or system. It defines how the components are connected to each other and how signals flow between them. The choice of topology can significantly impact the performance, efficiency, and functionality of the electronic system. Common topologies include series, parallel, star, mesh, and hybrid configurations, each with its own advantages and limitations. Designers carefully select the appropriate topology based on the specific requirements of the circuit to achieve the desired performance and functionality.

    Buck, Buck, Boost
  • Control Mode

    In electronic components, "Control Mode" refers to the method or mode of operation used to regulate or control the behavior of the component. This parameter determines how the component responds to input signals or commands to achieve the desired output. The control mode can vary depending on the specific component and its intended function, such as voltage regulation, current limiting, or frequency modulation. Understanding the control mode of an electronic component is crucial for proper integration and operation within a circuit or system.

    CURRENT-MODE
  • Frequency - Switching

    "Frequency - Switching" in electronic components refers to the rate at which a device, such as a transistor or switching regulator, turns on and off during operation. This parameter is crucial in determining the efficiency and performance of power converters, oscillators, and other circuits that rely on rapid switching. Higher switching frequencies typically allow for smaller component sizes but may require more advanced design considerations to manage heat and electromagnetic interference.

    320kHz~2.25MHz
  • Control Technique

    In electronic components, "Control Technique" refers to the method or approach used to regulate and manage the operation of the component. This parameter is crucial in determining how the component functions within a circuit or system. Different control techniques can include analog control, digital control, pulse-width modulation (PWM), and various feedback mechanisms. The choice of control technique can impact the performance, efficiency, and overall functionality of the electronic component. It is important to select the appropriate control technique based on the specific requirements and characteristics of the application in which the component will be used.

    PULSE WIDTH MODULATION
  • Synchronous Rectifier

    Synchronous rectification is a technique for improving the efficiency of rectification by replacing diodes with actively controlled switches, usually power MOSFETs or power bipolar junction transistors (BJT).

    Yes
  • Switcher Configuration

    Switcher Configuration in electronic components refers to the arrangement or setup of a switcher circuit, which is a type of power supply that converts one form of electrical energy into another. The configuration of a switcher circuit includes the specific components used, such as transistors, diodes, capacitors, and inductors, as well as their interconnections and control mechanisms. The switcher configuration determines the efficiency, voltage regulation, and other performance characteristics of the power supply. Different switcher configurations, such as buck, boost, buck-boost, and flyback, are used for various applications depending on the desired output voltage and current requirements. Understanding and selecting the appropriate switcher configuration is crucial in designing reliable and efficient power supply systems for electronic devices.

    BUCK-BOOST
  • Output Voltage-Max

    Output Voltage-Max is a parameter in electronic components that specifies the maximum voltage level that can be safely output by the component under normal operating conditions. This parameter is crucial for ensuring the proper functioning and longevity of the component, as exceeding the maximum output voltage can lead to damage or failure. Designers and engineers must carefully consider this specification when selecting components for a circuit to prevent overloading and potential hazards. It is important to adhere to the specified maximum output voltage to maintain the reliability and performance of the electronic system.

    60V
  • Output Voltage-Min

    Output Voltage-Min is a parameter in electronic components that specifies the minimum voltage level that the component can provide at its output terminal under specified operating conditions. This parameter is crucial for determining the range of voltages that the component can deliver reliably to the connected circuit or device. It helps in ensuring that the output voltage remains within acceptable limits to prevent damage to the component or the connected components. Designers and engineers use this parameter to select components that meet the voltage requirements of their circuits and to ensure proper functionality and performance.

    0.8V
  • Duty Cycle (Max)

    The "Duty Cycle (Max)" parameter in electronic components refers to the maximum percentage of time that a signal is active or on within a specific period. It is commonly used in components such as pulse-width modulation (PWM) controllers, oscillators, and timers. A duty cycle of 100% means the signal is always on, while a duty cycle of 0% means the signal is always off. Understanding the maximum duty cycle is important for ensuring proper operation and performance of the electronic component within its specified limits. It is typically expressed as a percentage and helps determine the amount of power or energy being delivered by the signal.

    100%
  • Clock Sync

    Clock synchronization is a topic in computer science and engineering that aims to coordinate otherwise independent clocks. Even when initially set accurately, real clocks will differ after some amount of time due to clock drift, caused by clocks counting time at slightly different rates.

    No
  • Output Phases

    Output Phases in electronic components refer to the number of distinct output signals or waveforms that the component can generate. This parameter is commonly associated with devices such as power inverters, motor drives, and signal generators. The output phases indicate how many separate signals can be produced simultaneously by the component, with each phase typically representing a different electrical waveform or signal. Understanding the output phases of an electronic component is important for designing and implementing systems that require multiple output signals or for ensuring compatibility with other components in a circuit.

    2
  • Length
    7mm
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    0.8mm
  • Width
    5mm
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    ROHS3 Compliant
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LTC7815EUHF#TRPBF

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