LT3476EUHF#PBF
LED Driver 8 Segment 5500uA Supply Current 38-Pin QFN EP Tube
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Part Number : LT3476EUHF#PBF
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Package/Case : QFN-38
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Brands : Analog Devices Inc.
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Components Categories : LED Drivers
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Datesheet : LT3476EUHF#PBF DataSheet (PDF)
Overview of LT3476EUHF#PBF
The LT3476 is a quad output DC/DC converter designed to operate as a constant-current source for driving high current LEDs. A fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. A frequency adjust pin allows the user to program switching frequency between 200kHz and 2MHz to optimize efficiency and external component size.
Key Features
- True Color PWM™ Dimming Delivers Up to 5000:1 Dimming Ratio (In Boost Configuration)
- LED Current Regulation with High-Side Sense
- VADJ Pin Accurately Sets LED Current Sense Threshold Over Range 10mV to 120mV
- Four Independent Driver Channels with 1.5A, 36V Internal NPN Switches
- Frequency Adjust Pin: 200kHz to 2MHz
- High Efficiency Conversion = Up to 96%
- Open LED Protection
- Low Shutdown Current < 10μA
- Wide VIN Range: 2.8V to 16V
- Thermally Enhanced, 38-Lead, 5mm × 7mm QFN Package
Application
- RGGB Lighting
- Automotive and Avionic Lighting
- TFT LCD Backlighting
- Constant-Current Sources
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Product Status | Active | Type | High Current |
| Topology | Boost, Buck | Internal Switch(s) | Yes |
| Voltage - Supply (Min) | 2.8V | Voltage - Supply (Max) | 16V |
| Voltage - Output | 2.2V ~ 36V | 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 | QFN-38 |
| Supplier Device Package | 38-QFN (5x7) | Base Product Number | LT3476 |
| Manufacturer | Analog Devices Inc. | Product Category | LED Lighting Drivers |
| RoHS | Details | Series | LT3476 |
| Mounting Style | SMD/SMT | Number of Outputs | 4 Output |
| Output Current | 1 A | Input Voltage, Min | 2.8 V |
| Input Voltage, Max | 16 V | Operating Frequency | 200 kHz to 2 MHz |
| Output Voltage | 2.2 V to 36 V | Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 125 C | Features | PWM Dimming, Open LED Protection |
| Brand | Analog Devices | For Use With | High Current LEDs |
| Input Voltage | 2.8 V to 16 V | Number of Channels | 4 Channel |
| Product | LED Drivers | Product Type | LED Lighting Drivers |
| Factory Pack Quantity | 52 | Subcategory | Driver ICs |
| Supply Current - Max | 30 mA | Unit Weight | 0.014462 oz |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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