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PT4115
+StücklisteIC LED DRVR BUCK PWM 1.2A SOT89-
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HerstellerUMW
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Herstellerteil #PT4115
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Datenblatt PT4115 DataSheet
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Auf Lager28431
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Spezifikationen
| Attribut | Wert |
| 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 |
Übersicht
Description
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
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
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
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.