Datasheet for LT3762:
- Manufacturer Part Number : LT3762
- Manufacturer : AD
- Description : 60V Synchronous Boost LED Controller
- Series : LT3762
- Reference Price : USD 2.24
- Our Price : We have a better price, contact us by email
- Product Type : LED Driver IC
- Function : Step-Up (Boost) LED Drivers
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LT3762
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for LT3762. If you need any more information about LT3762, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
- 3000:1 External PWM Dimming
- 250:1 Internal PWM Dimming
- Wide VIN Operating Range: 2.5V to 38.5V
- Synchronous Boost Output Voltage up to 60V
- Spread-Spectrum Frequency Modulation for Lower EMI
- PMOS Switch Driver for PWM and Output Disconnect
- Constant Current (±3.5%) Regulation
- Constant Voltage (±2%) Regulation
- Rail-to-Rail LED Current Sense: 0V to 60V
- Programmable VIN Undervoltage Lockout
- Analog Dimming via Two Control Pins
- 100kHz to 1MHz Operation
- Programmable Open LED Protection with OPENLED Flag
- Short-Circuit Protection and SHORTLED Flag
- Drives LEDs in Boost, SEPIC, Buck Mode, or BuckBoost Mode Configurations
- 28 Lead TSSOP and QFN (4mm × 5mm) Exposed Pad Packages
The LT3762 is a synchronous DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal generator and a synchronous gate driver. The LT3762 is ideally suited for driving high current LEDs with high efficiency and reduced power loss. Rail-to-rail switch current sensing enables synchronous boost topologies and nonsynchronous topologies such as SEPIC. A voltage feedback pin serves as the input for several LED protection features and also allows the converter to operate as a constant-voltage source.
A frequency adjust pin allows the user to program the frequency from 100kHz to 1MHz to optimize efficiency, performance and external component size. Adding a capacitor at SSFM pin activates the Spread-Spectrum Modulation feature to reduce EMI. The LT3762 also includes an integrated DC/DC converter to efficiently produce a regulated 7.5V supply for the N-channel MOSFET gate drivers. The PWM pin controls PWMTG to drive the P-channel MOSFET, allowing a high PWM dimming range (3000:1) and providing LED overcurrent protection and short-circuit protected boost capability.
Applications
- Industrial and Automotive Lighting
- Accurate Current-Limited Voltage Regulators
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
