TPS65140PWPR

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TPS65140PWPR

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IC LCD SUPPLY TFT QUAD 24HTSSOP

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  • Gói HTSSOP (PWP)-24

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Applications LCD Monitor, Notebook Display
Current-Supply 700µA
Voltage-Supply 2.7V ~ 5.8V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 24-TSSOP (0.173, 4.40mm Width) Exposed Pad

Tổng quan

Description

The TPS65140PWPR is a versatile DC-DC converter from Texas Instruments, designed for applications requiring multiple output voltages, such as LCD displays and portable electronics. It integrates a high-efficiency boost converter to generate a positive output voltage, and an inverting charge pump to provide a negative output voltage. This dual-output capability makes it suitable for systems needing both positive and negative supply rails.
The device operates over a wide input voltage range, typically from 2.7V to 5.5V, making it compatible with standard battery configurations. It features high switching frequency, which allows the use of smaller external components, reducing overall solution size. The TPS65140PWPR also includes various protection features, such as over-temperature and over-current protection, ensuring reliable operation.
The device comes in a TSSOP 20-pin package with PowerPAD, enhancing thermal performance. It is well-suited for use in handheld devices, PDAs, and other applications where efficient power management and space-saving design are crucial. Overall, the TPS65140PWPR offers robust performance for generating split-rail power supplies.

Equivalent

The TPS65140PWPR is a DC-DC converter by Texas Instruments designed for LCD bias supplies. Equivalent products include:
1. LT1945 - by Analog Devices, another dual-output DC-DC converter.
2. NCP5608 - by ON Semiconductor, also used for LCD bias supplies.
3. MAX15120 - by Maxim Integrated, offering similar features for LCD applications.
4. RT4533 - by Richtek, a comparable boost converter for similar applications.
Always verify pin compatibility and electrical characteristics before substituting components.

Features

The TPS65140PWPR is a versatile positive and negative output DC-DC converter, ideal for generating LCD bias supply voltages in portable devices. Key features include:
1. Input Voltage Range: Operates from 2.7V to 5.5V, suitable for battery-powered applications.
2. Output Voltage: Generates positive and negative outputs, adjustable via external resistors.
3. Efficiency: Delivers high efficiency up to 85%, reducing power losses.
4. Switching Frequency: Fixed frequency of 1.25 MHz, allowing the use of small inductors and capacitors.
5. Current Capability: Provides up to 15 mA for negative output and up to 20 mA for positive output.
6. Protection: Features include overcurrent protection, thermal shutdown, and short-circuit protection for reliable operation.
7. Package: Available in a 20-pin TSSOP package with exposed thermal pad for improved heat dissipation.
8. Applications: Suitable for use in TFT-LCD bias supplies, OLED displays, and other portable electronic devices.
These features make the TPS65140PWPR an efficient and reliable choice for display power management in compact electronic designs.

Pinout

The TPS65140PWPR is a power management IC from Texas Instruments, primarily designed for driving LCD bias supplies in portable devices. It typically comes in a 24-pin TSSOP (Thin Shrink Small Outline Package) with a PowerPAD for enhanced thermal performance. Its main functions include generating positive and negative output voltages required by LCD displays, and it also integrates a linear regulator and operational amplifiers for additional voltage regulation and current driving requirements. The device is known for its efficiency in applications requiring dual supply voltages and is suitable for use in portable and battery-operated devices due to its low quiescent current. For exact pin configuration and detailed functions of each pin, referring to the official datasheet is recommended.

Manufacturer

The TPS65140PWPR is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest producers of chips worldwide, and its products are used in a wide range of electronic devices and systems. TI serves various industries, including automotive, consumer electronics, industrial, telecommunications, and more. The company is known for its innovation and significant contributions to the field of electronics, particularly in the areas of analog and embedded processing.

Application

The TPS65140PWPR is a power management IC primarily used for driving electronic paper displays (EPD), thin-film transistor (TFT) displays, and organic light-emitting diode (OLED) panels. It is suitable for applications requiring positive and negative output voltages, such as in portable devices, e-readers, and digital signage. The device offers high efficiency and integrated power sequencing, making it ideal for battery-powered applications where space and power conservation are crucial. Additionally, it is used in powering the LCD bias voltages in portable DVD players, netbooks, and other consumer electronics, as well as industrial and automotive displays that require compact solutions with precise voltage regulation.

Package

The TPS65140PWPR is a power management IC from Texas Instruments, and it comes in a TSSOP (Thin Shrink Small Outline Package) with a PowerPAD, designated by the "PWP" in its part number. This package type allows for efficient thermal management and compact design, suitable for applications requiring both small size and effective heat dissipation.

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