ISL78235ARZ-T7A

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ISL78235ARZ-T7A

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IC REG BUCK ADJUSTABLE 5A 16TQFN

  • FabricanteRenesas Electronics America Inc.

  • Peça do Fabricante #ISL78235ARZ-T7A

  • Pacote TQFN-16

  • Em Estoque2950

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Especificações

Atributo Valor
Package Tape & Reel (TR),Cut Tape (CT)
Series Automotive, AEC-Q100
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 2.7V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 0.6V
Voltage-Output(Max) 5.5V
Current-Output 5A
Frequency-Switching 420kHz ~ 4.2MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 105°C (TA)
MountingType Surface Mount
Package/Case 16-WFQFN Exposed Pad

Visão Geral

Description

The ISL78235ARZ-T7A is a specialized integrated circuit designed for automotive applications. This device is a high-performance, synchronous buck controller that efficiently converts voltage levels, making it suitable for powering various automotive electronic systems. Key features of the ISL78235ARZ-T7A include high accuracy, wide input voltage range, and robust thermal performance, which are critical for maintaining reliability in harsh automotive environments. It supports multiple operating modes to optimize performance and efficiency depending on the application requirements. Additionally, the ISL78235ARZ-T7A incorporates protection features such as overcurrent protection, undervoltage lockout, and thermal shutdown to ensure safe operation. This device is typically used in applications where space and power efficiency are vital, such as infotainment systems, advanced driver-assistance systems (ADAS), and other automotive electronic control units. Its compact package and design flexibility make it a favorable choice for engineers looking to optimize power management in automotive systems.

Equivalent

The ISL78235ARZ-T7A is a synchronous buck controller. Equivalent products might include similar synchronous buck controllers from other manufacturers, such as:
1. LM5145 from Texas Instruments
2. LTC3892 from Analog Devices
3. MAX17503 from Maxim Integrated
These alternatives are selected based on similar functionality and application. However, exact equivalence would depend on specific electrical and mechanical requirements, so it's recommended to review the datasheets for compatibility.

Features

The ISL78235ARZ-T7A is a high-performance automotive-grade synchronous buck controller. Key features include:
1. Wide Input Voltage Range: Supports 4.5V to 42V, making it suitable for automotive battery systems.
2. High Efficiency: Offers up to 95% efficiency with synchronous rectification and adaptive on-time control.
3. Adjustable Output Voltage: Features a wide output range with precise regulation, suitable for various load requirements.
4. Switching Frequency: Operates at a programmable frequency from 100kHz to 2.2MHz, optimizing size and efficiency.
5. Protection Features: Includes overvoltage, undervoltage, overcurrent, and thermal protection for system reliability.
6. Soft Start and Sequencing: Supports controlled startup and sequencing for multiple power rails.
7. Compact Package: Available in a small 16-lead TQFN package, facilitating compact PCB design.
These features make the ISL78235ARZ-T7A ideal for automotive and high-reliability applications that require efficient power management.

Pinout

The ISL78235ARZ-T7A is a 3A synchronous buck regulator with a current mode control scheme. It is typically used for automotive and industrial applications. The device comes in a 16-lead exposed pad (EP) TQFN package.
The main functions of this IC include step-down voltage conversion with high efficiency and precise regulation. It features an adjustable output voltage, wide input voltage range, and integrated MOSFETs which help in reducing external component count. The device also provides features such as soft-start, overcurrent protection, and thermal shutdown, ensuring robust performance under various conditions.
For detailed pin configurations and specific functionalities of each pin, it is important to refer to the official datasheet provided by the manufacturer, Renesas Electronics, as this provides comprehensive information on each pin's role and electrical characteristics.

Manufacturer

The ISL78235ARZ-T7A is manufactured by Renesas Electronics Corporation. Renesas is a Japanese semiconductor company that designs and manufactures a variety of semiconductor products. The company specializes in microcontrollers, analog, mixed-signal integrated circuits, and power management ICs, serving industries such as automotive, industrial, home electronics, and information communication technology. Renesas is recognized for its contributions to the semiconductor industry, providing solutions that enhance performance and efficiency in electronic systems.

Application

The ISL78235ARZ-T7A is a highly efficient DC-DC step-down switching regulator. Its application areas include automotive electronics, where it helps in power management for infotainment systems, ADAS (Advanced Driver Assistance Systems), and LED lighting. Additionally, it's suitable for industrial applications that require stable power supply solutions, such as automation systems and communication infrastructure. The device's robust design ensures reliable operation in harsh environments, making it ideal for both automotive and industrial use cases.

Package

The ISL78235ARZ-T7A is typically available in a 24-lead QFN (Quad Flat No-Lead) package. This package type is known for its small footprint and efficient thermal performance, making it suitable for compact and heat-sensitive applications in automotive and industrial environments.

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