PT4115

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PT4115

+BOM

IC LED DRVR BUCK PWM 1.2A SOT89-

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Specifications

Attribute Value
PartStatus Active
Type DC DC Regulator
Topology Step-Down (Buck)
InternalSwitch(s) Yes
NumberofOutputs 1
Voltage-Supply(Min) 6V
Voltage-Supply(Max) 30V
Voltage-Output 45V
Current-Output/Channel 1.2A
Frequency 1MHz
Dimming PWM
Applications Backlight, Lighting
OperatingTemperature -40°C ~ 85°C

Overview

Description

PT4115 is typically a reference to a Power Management Integrated Circuit (PMIC) that is used for DC-DC conversion, specifically in applications that require high-efficiency power conversion. These types of components are crucial in modern electronics where they regulate the voltage levels by stepping down or stepping up input voltages to desired levels for specific components or subsystems.
The PT4115 is often used in LED driver applications, particularly for driving high-brightness LEDs. It features a wide input voltage range, high efficiency, and a built-in switch that simplifies the design and reduces external component count. The PT4115 is known for its ability to provide high precision in current regulation, which is essential for maintaining consistent LED brightness and color consistency.
This component is ideal for use in various lighting applications, including automotive lighting, general-purpose lighting, and backlighting for displays. Its compact size and robust performance make it a popular choice in applications where space is limited, and performance is critical.

Equivalent

The PT4115 is a LED driver IC known for its high efficiency and simplicity. Equivalent products include:
1. AL8805 by Diodes Incorporated – Offers similar functionality as a high-efficiency LED driver.
2. ZXLD1350 by Diodes Incorporated – Another alternative with adjustable output current.
3. BP2851 by Bright Power Semiconductor – Provides similar features for driving LEDs.
4. MP2480 by Monolithic Power Systems – Comparable in applications for LED driving.
These alternatives provide similar functionality and can be chosen based on specific requirements or availability.

Features

The PT4115 is a high-efficiency step-down LED driver IC specifically designed for driving high-brightness LEDs. Key features include:
1. Wide Input Voltage Range: It supports a wide input voltage range from 6V to 30V, making it suitable for various applications.
2. High Efficiency: The IC offers high efficiency, typically up to 97%, which helps in minimizing power loss.
3. Adjustable Output Current: The output current is easily adjustable via an external resistor, providing flexibility in controlling the brightness of LEDs.
4. Built-in Power Switch: Integrates a 30V N-channel MOSFET, reducing the need for external components.
5. Dimming Options: Supports both analog and PWM dimming for versatile brightness control.
6. Over Temperature Protection: Includes over-temperature protection to prevent damage from overheating.
7. Current Limit Protection: Features over-current protection to safeguard against excessive current.
8. Low Component Count: Requires minimal external components, simplifying the design and reducing cost.
These features make the PT4115 an ideal choice for LED lighting applications, including automotive lighting, LCD backlighting, and general illumination.

Pinout

The PT4115 is a high-efficiency switch-mode LED driver IC designed for driving high-brightness LEDs. It is typically used in applications where a continuous current needs to be provided to the LED. The PT4115 comes in a simple package with a minimal pin count, usually a SOT89-5 package with 5 pins. Here is a brief description of its pins and functions:
1. SW (Switch): This is the switch output pin. It connects to the inductor and diode in the switching regulator circuit.
2. VDD (Input Supply): This pin is the power supply input. It receives the input voltage necessary for the IC's operation.
3. GND (Ground): The ground reference pin for the device.
4. SET (Current Set): This pin is used to set the LED current. A resistor connected between this pin and ground determines the current flowing through the LED.
5. DIM (Dimming Control): This pin can be used to provide PWM dimming control to adjust LED brightness.
The PT4115 is appreciated for its simplicity, efficiency, and easy implementation in LED driving applications.

Manufacturer

The PT4115 is manufactured by Shenzhen Power Integrations, which is a company specializing in the design and production of electronic components, particularly for power management applications. Shenzhen Power Integrations is known for developing high-performance analog and mixed-signal semiconductors used in a wide range of applications, including LED drivers, power supplies, and other energy-efficient solutions. The company focuses on providing innovative technology solutions for efficient power conversion and management, often used in consumer electronics, industrial systems, and lighting applications.

Application

The PT4115 is a high-efficiency, step-down LED driver, primarily used in applications requiring constant current LED lighting solutions. Its key application areas include residential and commercial LED lighting systems, such as LED lamps, spotlights, and downlights. It's also suitable for automotive lighting, including headlights and interior lights, due to its wide input voltage range and high efficiency. Additionally, the PT4115 can be used in backlighting for LCD TVs and displays, as well as in decorative and architectural lighting projects. Its simple design and integrated features make it ideal for applications requiring compact and cost-effective LED driver solutions.

Package

The PT4115 is typically available in a SOT89-5 package, which is a small footprint surface-mount package suitable for compact electronic designs.