Allicdata Part #: | LT3476EUHF#PBF-ND |
Manufacturer Part#: |
LT3476EUHF#PBF |
Price: | $ 6.75 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC LED DRVR RGLTR DIM 1.5A 38QFN |
More Detail: | LED Driver IC 4 Output DC DC Regulator Step-Down (... |
DataSheet: | LT3476EUHF#PBF Datasheet/PDF |
Quantity: | 1773 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | $ 6.13620 |
25 +: | $ 4.26056 |
100 +: | $ 3.50860 |
Series: | -- |
Packaging: | Tube |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Type: | DC DC Regulator |
Topology: | Step-Down (Buck), Step-Up (Boost) |
Internal Switch(s): | Yes |
Number of Outputs: | 4 |
Voltage - Supply (Min): | 2.8V |
Voltage - Supply (Max): | 16V |
Voltage - Output: | 2.2 V ~ 36 V |
Current - Output / Channel: | 1.5A (Switch) |
Frequency: | 200kHz ~ 2MHz |
Dimming: | PWM |
Applications: | Backlight |
Operating Temperature: | -40°C ~ 85°C (TA) |
Mounting Type: | Surface Mount |
Package / Case: | 38-WFQFN Exposed Pad |
Supplier Device Package: | 38-QFN (5x7) |
Base Part Number: | LT3476 |
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The LT3476EUHF#PBF is a monolithic step-up current regulator from Linear Technology, designed to generate constant current for high power LED applications. It is part of the family of PMIC (Power Management ICs) that includes LED drivers specifically designed for LED applications. It operates at a wide input voltage range from 4.5 V to 60 V, and is able to accurately regulate LED current with a minimal external component count. With the LT3476EUHF#PBF, LED drivers can achieve a constant current regulation with a typical efficiency of better than 95%.
The LT3476EUHF#PBF is a synchronous, current mode step-up DC/DC converter designed for LED string applications. It features a single ended current mode control architecture, with an internal power switch that operates in continuous conduction mode (CCM). The internal current source keeps the internal power switch operating in constant current mode, even under short-circuit and open-circuit conditions. This allows for a high efficiency and fast transient response in a small package.
The LT3476EUHF#PBF includes several features that make it an ideal LED driver. It features an adjustable output current, and an LED voltage accuracy of ±1%. The LED current can be adjusted through a sense resistor or via the IADJ pin. It also features an internal current limit, which allows it to maintain the specified peak LED current and avoid over-driving current. Additionally, it has an integrated soft-start feature which limits inrush current, and an adjustable switching frequency which can be set using a resistor.
The LT3476EUHF#PBF also features an integrated email alert system, which alerts the user if an error condition occurs, such as an open or short circuit. This feature allows the user to quickly identify and address any potential issues with the LED array. The LT3476EUHF#PBF also has integrated protection features, such as thermal shutdown, under voltage lockout, short-circuit protection, and over-current protection. Additionally, it is capable of operating over the -40°C to 85°C temperature range.
The LT3476EUHF#PBF is an ideal choice for high power LED applications. Its wide operating range, low switching noise and high efficiency help to make it a versatile solution for a wide range of applications. The high peak current limit and integrated protection features provide valuable protection for the LED array. Finally, its low component count, adjustable current setting, and email alert system, help to reduce design complexity and ensure a stable and reliable operation.
The specific data is subject to PDF, and the above content is for reference
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