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LT3755EMSE-2#TRPBF
+NomenclatureIC LED DRIVER CTRLR PWM 16MSOP
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LT3755EMSE-2#TRPBF
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Fiche technique LT3755EMSE-2#TRPBF DataSheet
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Spécifications
| Attribut | Valeur |
| PartStatus | Active |
| Type | DC DC Controller |
| Topology | Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) |
| InternalSwitch(s) | No |
| NumberofOutputs | 1 |
| Voltage-Supply(Min) | 4.5V |
| Voltage-Supply(Max) | 40V |
| Frequency | 100kHz ~ 1MHz |
| Dimming | Analog, PWM |
| OperatingTemperature | 0°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-TFSOP (0.118", 3.00mm Width) Exposed Pad |
| SupplierDevicePackage | 16-MSOP-EP |
| BaseProductNumber | LT3755 |
Présentation
Description
Key features include a high-side current sense, allowing for accurate LED current regulation, and a programmable switching frequency up to 1MHz, enabling compact solution sizes. The LT3755EMSE-2 also supports both analog and PWM dimming, giving users flexibility in controlling LED brightness. Additionally, it has built-in protection features, such as open LED and short-circuit protection, to ensure safe operation.
The package type, EMSE, refers to a thermally enhanced MSOP package, which offers efficient heat dissipation crucial for high-power applications. The suffix "-2" specifies a variant with particular configuration or feature set differences from the standard LT3755 model. This driver is ideal for applications requiring efficiency, reliability, and precise LED current control.
Equivalent
1. TPS92641 from Texas Instruments - A high voltage LED driver controller.
2. LM3409 from Texas Instruments - A high power constant current LED driver.
3. MAX16834 from Maxim Integrated - An integrated, high-brightness LED driver.
These alternatives offer similar functionalities and can be used in similar applications for driving high power LEDs.
Features
1. Wide Input Voltage Range: Operates efficiently from 6V to 100V.
2. Output Control: Capable of both constant-current and constant-voltage regulation, making it ideal for driving high-brightness LEDs.
3. High-Side Current Sense: Facilitates accurate current sensing with a high-side current sense amplifier.
4. PWM Dimming: Offers high PWM dimming ratios for precise brightness control.
5. Efficiency: High efficiency operation, often exceeding 90%, depending on the application.
6. Frequency Synchronization: Can synchronize to an external clock, supporting a range of switching frequencies.
7. Protection Features: Includes overcurrent, overvoltage, and thermal shutdown protections to ensure reliability and safety in various applications.
8. Package: Comes in a thermally enhanced 16-lead MSOP package.
These features make the LT3755EMSE-2#TRPBF suitable for a wide range of LED lighting applications, providing flexibility and reliability.
Pinout
- VIN (Pin 1): Input voltage supply.
- GATE (Pin 2): Gate drive for external N-channel MOSFET.
- SW (Pin 3): Switch node connection for the inductor and the external MOSFET.
- BOOST (Pin 4): Bootstrapped supply to the switch driver.
- ISP/ISN (Pins 5, 6): Current sense positive and negative inputs.
- CTRL (Pin 7): Control input for LED current programming.
- PWM (Pin 8): PWM dimming input.
- SS (Pin 9): Soft-start control.
- RT (Pin 10): Frequency programming resistor.
- SYNC (Pin 11): Synchronization input.
- OVLO (Pin 12): Overvoltage lockout.
- FB (Pin 13): Feedback voltage input.
- GND (Pin 14): Ground.
- VC (Pin 15): Compensation node.
- VREF (Pin 16): Voltage reference output.
These pins are designed to control and optimize the driving of high brightness LEDs efficiently.
Manufacturer
Application
1. LED Lighting: Suitable for driving high-power LEDs in general lighting and architectural lighting systems.
2. Automotive Lighting: Used in automotive headlamps, tail lights, and interior illumination due to its ability to handle high voltages.
3. Industrial Lighting: Ideal for factory and warehouse lighting solutions requiring robust and reliable LED drivers.
4. Backlighting: Can be used in large LCD displays for backlighting purposes.
5. Signage and Display: Efficient for LED signage and display panels requiring consistent brightness and power efficiency.
Its versatility and efficiency make it suitable for applications requiring precise LED current regulation and high reliability.