| Allicdata Part #: | LT3591EDDB#TRPBF-ND |
| Manufacturer Part#: |
LT3591EDDB#TRPBF |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Linear Technology/Analog Devices |
| Short Description: | IC LED DRVR RGLTR DIM 500MA 8DFN |
| More Detail: | LED Driver IC 1 Output DC DC Regulator Step-Up (Bo... |
| DataSheet: |  LT3591EDDB#TRPBF Datasheet/PDF |
| Quantity: | 1000 |
Specifications
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Active |
| Type: | DC DC Regulator |
| Topology: | Step-Up (Boost) |
| Internal Switch(s): | Yes |
| Number of Outputs: | 1 |
| Voltage - Supply (Min): | 2.5V |
| Voltage - Supply (Max): | 12V |
| Voltage - Output: | -- |
| Current - Output / Channel: | 500mA (Switch) |
| Frequency: | 1MHz |
| Dimming: | PWM |
| Applications: | Backlight |
| Operating Temperature: | -40°C ~ 85°C (TJ) |
| Mounting Type: | Surface Mount |
| Package / Case: | 8-WFDFN Exposed Pad |
| Supplier Device Package: | 8-DFN (3x2) |
| Base Part Number: | LT3591 |
Description
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PMIC - LED Drivers: LT3591EDDB#TRPBF application field and working principle
The LT3591EDDB#TRPBF is a constant current LED driver designed to provide precise regulated LED currents with dynamic fresh current control. The device drives LEDs with up to 200mA LED current and subsets up to 12 LEDs per channel while supporting both linear and buck-boost modes. When used with an internal DIAC, the LT3591EDDB#TRPBF is the preferred driver for automotive applications. This integrated solution utilizes a high-side current sense element to provide precise regulation of the output current.Features
- Output current range from 10mA to 200mA
- Input voltage range from 3V to 5.5V
- High PWM dimming ratio (1% - 100%)
- Programmable slew rate over PWM dimming
- Dynamic fresh current control
- Thermally enhanced 24-Lead DFN package
Application Field
The LT3591EDDB#TRPBF is used in a wide variety of applications, ranging from automotive lighting to general lighting applications. It is particularly suitable for automotive lighting applications due to its high efficiency and low cost, as well as its ability to handle harsh environmental conditions. Additionally, the device is suitable for industrial applications such as LED light fixtures, LED displays, automotive interior lighting, LCD backlighting, signs and displays, and other general lighting solutions.Working Principle
The LT3591EDDB#TRPBF consists of an input voltage supply, a current-sensing element, a current regulation circuit, and an LED driver. The input voltage is supplied to the current sensing element which senses the voltage levels and the current flowing through the LED. The current regulation circuit is then used to regulate the LED current via an internal DIAC. The LED current is regulated to the set point determined by the internal DIAC. The current then passes through the LED driver which converts the current into the appropriate levels for driving the LED, providing the desired dimming effect.Conclusion
The LT3591EDDB#TRPBF is a high-efficiency and low-cost LED driver designed specifically for automotive and general lighting applications. Its high PWM dimming ratio and dynamic fresh current control make it ideal for automotive lighting, while its linear and buck-boost modes make it suitable for a wide range of LED light fixtures. Additionally, the device is thermally enhanced and housed in a 24-Lead DFN package, making it suitable for harsh environmental conditions.The specific data is subject to PDF, and the above content is for reference
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