TL317CDR

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TL317CDR

+BOM

IC REG LIN POS ADJ 100MA 8SOIC

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Specifications

Attribute Value
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
OutputConfiguration Positive
OutputType Adjustable
NumberofRegulators 1
Voltage-Input(Max) 38V
Voltage-Output(Min/Fixed) 1.2V
Voltage-Output(Max) 32V
Current-Output 100mA
PSRR 65dB (120Hz)
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature 0°C ~ 125°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Overview

Description

The TL317CDR is a versatile, adjustable three-terminal voltage regulator from Texas Instruments. It is designed to provide a stable output voltage that can be adjusted over a wide range, making it suitable for various applications. The device offers a typical output current capability of 1.5A and can handle input-output voltage differentials of up to 40V.
Key features include thermal overload protection, current limiting, and safe area protection, which ensure reliable and efficient operation even under stress conditions. The TL317CDR is commonly used in power management systems, battery chargers, and adjustable power supplies. Its ability to maintain a stable voltage output with low dropout makes it ideal for both linear and switching regulator designs.
This device is housed in a standard D-Pak surface mount package, allowing for compact and efficient designs. It is widely appreciated for its ease of use, requiring only two external resistors to set the output voltage. Additionally, the TL317CDR's robust design allows for consistent performance in various environments, making it a popular choice among engineers and designers.

Equivalent

The TL317CDR is a voltage regulator. Equivalent products include the LM317 series, such as LM317L, LM317T, and LM317D2T. These equivalents offer similar adjustable voltage regulation capabilities. Other potential equivalents are NTE956, L78S, and STMicroelectronics' L200 series, which provide comparable functionality. When selecting an equivalent, ensure that the package type, output current, and thermal characteristics match your specific requirements.

Features

The TL317CDR is a voltage regulator integrated circuit (IC) designed for adjustable output voltage applications. Key features include:
1. Adjustable Output Voltage: It offers an output voltage range from 1.25V to 37V, allowing versatility for various applications by using external resistors.
2. Output Current: The IC can deliver up to 1.5A of output current, suitable for medium power applications.
3. Load Regulation: It provides good load regulation performance, ensuring stable output voltage despite changes in load current.
4. Line Regulation: Excellent line regulation ensures consistent output voltage with varying input voltage levels.
5. Thermal Overload Protection: Integrated thermal protection prevents damage from excessive heat by shutting down the IC if it overheats.
6. Short-Circuit Protection: The device includes short-circuit protection to safeguard against output short circuits.
7. Current Limiting: The IC features current limiting to prevent excessive current draw.
8. Package Options: Available in various packages, such as TO-220 and SOT-223, for flexibility in design and thermal management.
These features make the TL317CDR suitable for applications requiring reliable voltage regulation with flexibility in output voltage settings.

Pinout

The TL317CDR is a 3-terminal adjustable positive voltage regulator commonly used for linear voltage regulation applications. It comes in a surface-mount SOIC-8 (Small Outline Integrated Circuit) package. The pin count for the TL317CDR in an SOIC-8 package is 8 pins, but functionally, it operates using 3 main pins:
1. Input (Pin 3): This pin is where the unregulated input voltage is applied.
2. Output (Pin 4): This pin provides the regulated output voltage.
3. Adjust (Pin 2): This pin is used to set the output voltage by connecting it to a resistor divider network.
The remaining pins in the package are typically not connected to functional circuits within the device or are used for additional stability and heat dissipation purposes. The TL317 is similar in function to the LM317 but may come in different package and performance specifications. It is capable of driving a wide range of output currents and can adjust the output voltage over a wide range by changing the resistors connected to the adjust pin.

Manufacturer

The TL317CDR is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments specializes in designing and manufacturing a wide range of semiconductor products, including analog and embedded processing chips. TI’s products are used in various applications, from consumer electronics and industrial equipment to automotive and communications systems. As a leader in the semiconductor industry, Texas Instruments focuses on innovation and quality, providing solutions that enable advancements in technology and improve efficiency across different sectors.

Application

The TL317CDR is a versatile adjustable voltage regulator commonly used in applications requiring a stable power supply. Key application areas include:
1. Power Supply Regulation: Provides stable voltage output for circuits in consumer electronics and embedded systems.
2. Battery Chargers: Used in designing battery charging circuits due to its adjustable output voltage.
3. Variable Power Supplies: Ideal for bench power supplies where adjustable output is needed.
4. LED Drivers: Regulates current for LED applications.
5. Industrial Controls: Used in automation and control systems requiring precise voltage regulation.
6. Communication Equipment: Ensures stable power in networking and telecom devices.
Its ability to handle varying input and output conditions makes it suitable for diverse applications.

Package

The TL317CDR is a voltage regulator from Texas Instruments, housed in a surface-mount package known as SOIC (Small Outline Integrated Circuit), specifically a 8-pin SOIC package.