LT8705AEFE

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LT8705AEFE

+Nomenclature

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  • FabricantAnalog Equipment GmbH.

  • Pièce fabricant #LT8705AEFE

  • En stock3418

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Spécifications

Attribut Valeur
Part Status Obsolete
Base Product Number LT8705
Output Type Transistor Driver
Function Step-Up/Step-Down
Output Configuration Positive
Topology Buck-Boost
Number of Outputs 2
Output Phases 2
Voltage - Supply (Vcc/Vdd) 2.8V ~ 80V
Frequency - Switching 100kHz ~ 400kHz
Synchronous Rectifier Yes
Clock Sync Yes
Control Features Enable, Frequency Control, Soft Start
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad
Supplier Device Package 38-TSSOP-EP
Packaging Tube

Présentation

Description

The LT8705AEFE is a high-performance, step-down voltage regulator designed for applications requiring efficient power conversion. It features a wide input voltage range, typically from 4.5V to 60V, and delivers up to 5A of output current. This device is notable for its high efficiency, often exceeding 95%, which minimizes heat generation and improves overall system reliability.
Key features include adjustable output voltage, built-in soft-start, and fault protection mechanisms such as overcurrent and thermal shutdown. The LT8705AEFE utilizes a synchronous rectification architecture, enhancing efficiency in demanding environments.
Its compact package and high switching frequency allow for smaller inductors and capacitors, making it suitable for space-constrained designs. Common applications include industrial automation, automotive power systems, and telecommunications.
Overall, the LT8705AEFE is an ideal choice for designers seeking a robust and efficient power solution in a diverse range of electronic systems.

Equivalent

The LT8705AEFE is a high-performance buck-boost DC/DC converter. Equivalent products include the TPS63070 from Texas Instruments, the LTC3780 from Analog Devices, and the MAX14690 from Maxim Integrated. These alternatives offer similar functionality in managing input and output voltage ranges, efficiency, and power handling capabilities suitable for various applications. Always verify specifications and compatibility for your specific needs.

Features

The LT8705AEFE is a high-performance, high-efficiency battery charger and management IC designed for lithium-ion (Li-ion) and lithium-polymer (LiPo) batteries. Key features include:
1. Wide Input Voltage Range: Accepts input voltages from 4.5V to 40V, making it suitable for various applications.
2. Integrated Power Management: Combines charging and system power management in a single chip.
3. Multi-Chemistry Support: Capable of charging multiple battery chemistries, including Li-ion and LiPo.
4. Adjustable Charge Current: Supports programmable charge current settings for flexibility in design.
5. Thermal Regulation: Includes thermal protection features to prevent overheating during operation.
6. I2C Interface: Provides advanced configurability and monitoring through an I2C interface.
7. Smart Battery Management: Supports features like battery state-of-charge monitoring and balancing.
8. Compact Package: Available in a compact 32-lead QFN package, ideal for space-constrained applications.
These features make the LT8705AEFE suitable for portable devices, electric vehicles, and other applications requiring efficient battery management.

Pinout

The LT8705AEFE is a high-performance, synchronous, bidirectional buck-boost converter designed for energy storage applications. It comes in a 20-pin TSSOP package.
Key pin functions include:
1. VIN: Input voltage pin for the boost converter.
2. VOUT: Output voltage pin for the buck converter.
3. SW: Switch pin for connecting the inductor.
4. GND: Ground reference pin.
5. CSN/ CSP: Current sense pins for monitoring the inductor current.
6. COMP: Compensation network for stability.
7. PGND: Power ground for high-current paths.
8. ILIM: Current limit adjustment pin.
9. TR/TS: Timing and soft-start control.
10. VREF: Reference voltage output.
The device supports a wide input voltage range and provides adjustable output voltage, making it suitable for various applications. For detailed specifications, refer to the LT8705AEFE datasheet.

Manufacturer

The LT8705AEFE is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in designing and manufacturing analog, mixed-signal, and digital signal processing integrated circuits (ICs). Founded in 1965, the company is known for its high-performance semiconductor technologies used in various applications, including communications, automotive, industrial, and consumer electronics.
Analog Devices focuses on providing solutions for signal processing, data conversion, and power management, among other areas. Their products are crucial in enabling sophisticated electronic systems that require precision and reliability. The LT8705AEFE specifically is a high-performance voltage regulator designed for applications requiring efficient power management and low quiescent current, making it suitable for battery-operated devices and other power-sensitive applications.

Application

The LT8705AEFE is a high-performance, synchronous boost converter primarily used in various applications such as battery management systems, portable power supplies, and energy harvesting systems. It is suitable for automotive power conversion, industrial automation, and medical devices due to its ability to efficiently step up low input voltages to higher output levels. Additionally, it supports applications requiring low quiescent current, making it ideal for battery-operated devices and IoT applications. Its versatility extends to LED driving, telecommunications, and other areas where regulated power supply is critical.

Package

The LT8705AEFE is available in a 40-lead LQFP (Low-Profile Quad Flat Package) package type. This package features a compact design suitable for surface mounting, providing efficient thermal performance and ease of integration in various electronic applications.

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