LT3797ELXE#PBF Analog Devices Integrated Circuit (Quad Flat Packages) In Stock
LT3797ELXE#PBF is a triple output LED driver controller IC from Analog Devices, supporting up to 6 LED segments per channel. It features wide input voltage range and high-efficiency PWM dimming control for demanding lighting applications.
- Manufacturer
- Analog Devices
- Package
- Quad Flat Packages
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- LT3797ELXE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.7000(MOQ 19)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3797ELXE#PBF?
- Triple independent LED output channels with individual current control for flexible lighting designs
- Wide input voltage range supports diverse power supply configurations in industrial and automotive applications
- High-frequency PWM dimming with up to 3000:1 dimming ratio for smooth, flicker-free brightness control
- Integrated MOSFET gate drivers eliminate external gate drive components, reducing BOM cost and PCB area
- Operates across -40°C to 125°C extended temperature range suitable for harsh environment deployments
What is LT3797ELXE#PBF used for?
The LT3797ELXE#PBF is designed for high-performance LED lighting systems requiring independent multi-channel control, such as automotive interior and exterior lighting, industrial indicator panels, and architectural RGB LED installations. Its triple-output architecture allows engineers to drive three separate LED strings simultaneously with precise current matching, making it ideal for color-mixing applications and large-format display backlights. The controller's wide operating temperature range and robust gate drive capability enable reliable operation in outdoor signage, factory automation panels, and transportation lighting fixtures.
What are the specifications of LT3797ELXE#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1927 |
| YTEOL | 10 |
| Input Characteristics | STANDARD |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | S-PQFP-G48 |
| JESD-609 Code | e3 |
| Multiplexed Display Capability | NO |
| Number of Functions | 1 |
| Number of Segments | 6 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | HQFP48,.28SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, HEAT SINK/SLUG, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max | 40V |
| Supply Voltage-Min | 2.5V |
| Supply Voltage-Nom | 24V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LT3797ELXE#PBF datasheet?
LT3797ELXE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3797ELXE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many independent LED channels does the LT3797ELXE#PBF support, and what is the maximum number of LED segments per channel?
The LT3797ELXE#PBF supports 3 independent LED output channels, each capable of driving up to 6 LED segments. This triple-channel architecture allows designers to control separate LED strings with individual current regulation, enabling precise brightness matching across all 3 channels in multi-color or multi-zone lighting systems.
What PWM dimming ratio does the LT3797ELXE#PBF achieve, and why does this matter for display backlighting?
The LT3797ELXE#PBF achieves a PWM dimming ratio of up to 3000:1, allowing smooth brightness control from full output down to approximately 0.03% intensity. This wide 3000:1 ratio is critical for display backlighting applications where human eye sensitivity demands flicker-free transitions across the full brightness range, including very low-light viewing environments.
What is the operating temperature range of the LT3797ELXE#PBF, and which harsh-environment applications does it address?
The LT3797ELXE#PBF operates across an extended temperature range of -40°C to 125°C, meeting the thermal demands of automotive exterior lighting, industrial factory floor panels, and outdoor signage installations. The 48-pin LQFP package provides adequate thermal dissipation for continuous high-current LED drive operation within this 165°C total span.
When would you choose the LT3797ELXE#PBF over a single-channel LED controller for an RGB lighting design?
Choose the LT3797ELXE#PBF when your RGB or multi-zone design requires 3 independently regulated LED strings at up to 6 segments each, as a single-channel controller would require 3 separate ICs and 3 times the gate drive circuitry. The integrated triple-output design reduces BOM count, saves PCB area, and ensures tightly synchronized 3-channel PWM dimming from a single 48-pin device for precise color rendering.
What package does the LT3797ELXE#PBF use, and what PCB footprint area should be reserved for it?
The LT3797ELXE#PBF is housed in a 48-pin LQFP (Quad Flat Package) with a 7 mm × 7 mm body and 0.5 mm pin pitch. Designers should reserve approximately 10 mm × 10 mm of PCB area including the recommended pad land pattern and decoupling capacitor placement around the 48 pins to meet the manufacturer's layout guidelines.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $8.8800 | $168.72 |
| 25+ | $7.3972 | $184.93 |
| 100+ | $7.2875 | $728.75 |
| 1000+ | $6.7000 | $6700.00 |
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