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LT3796-1 Datasheet

LT3796-1 Datasheet

100V Constant-Current and Constant-Voltage Controller with Dual Current Sense
Part No.: LT3796-1
Page: 36 Pages
Size: 507 KB
Manufacturer: Linear Technology
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Views: 2
Update Time: 2023-12-07 11:01:12
DataSheet: Download

LT3796-1 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT3796EFE-1#PBF Tube 50 LT3796FE-1 1 28 -40°C ~ 125°C 28-Lead Plastic TSSOP  
LT3796EFE-1#TRPBF Reel 2000 LT3796FE-1 1 28 -40°C ~ 125°C 28-Lead Plastic TSSOP  
LT3796EFE-1#TRMPBF Reel 500 LT3796FE-1 1 28 -40°C ~ 125°C 28-Lead Plastic TSSOP  
LT3796IFE-1#PBF Tube 50 LT3796FE-1 1 28 -40°C ~ 125°C 28-Lead Plastic TSSOP  
LT3796IFE-1#TRPBF Reel 2000 LT3796FE-1 1 28 -40°C ~ 125°C 28-Lead Plastic TSSOP  
LT3796IFE-1#TRMPBF Reel 500 LT3796FE-1 1 28 -40°C ~ 125°C 28-Lead Plastic TSSOP  
LT3796HFE-1#PBF Tube 50 LT3796FE-1 1 28 -40°C ~ 150°C 28-Lead Plastic TSSOP  
LT3796HFE-1#TRPBF Reel 2000 LT3796FE-1 1 28 -40°C ~ 150°C 28-Lead Plastic TSSOP  
LT3796HFE-1#TRMPBF Reel 500 LT3796FE-1 1 28 -40°C ~ 150°C 28-Lead Plastic TSSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT3796-1 Datasheet(PDF)

LT3796-1 Datasheet(Picture)

LT3796-1 Features

  • 3000:1 True Color PWM Dimming
  • Wide Input Voltage Range: 6V to 100V
  • Current Monitoring Up to 100V
  • High Side PMOS Disconnect and PWM Switch Driver
  • Constant-Current and Constant-Voltage Regulation
  • Dual Current Sense Amplifiers with Reporting
  • C/10 Detection for Battery and SuperCap Charging
  • Linear Current Sense Threshold Programming
  • Short-Circuit Protection
  • Adjustable Frequency: 100kHz to 1MHz
  • Independent Top Gate Enable Pin (LT3796-1)
  • Programmable Open LED Protection with VMODE Flag
  • Programmable Undervoltage Lockout with Hysteresis
  • Soft-Start with Programmable Fault Restart Timer
  • Available in 28-Lead TSSOP Package

LT3796-1 Applications

  • High Power LED, High Voltage LED, Dual String
  • Battery and SuperCap Chargers
  • Accurate Current Limited Voltage Regulators

LT3796-1 Description

The LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for several LED protection features, and also allow the converter to operate as a constant-voltage source. The LT3796-1 feature a programmable threshold output current sense amplifier with rail-to-rail common mode range. A separate high side amplifier is gain configurable with two resistors and can be used to regulate a second current or a voltage in combination with one of the FB pins. The PWM input provides LED dimming ratios of up to 3000:1.

The LT3796-1 is optimized for a second output current regulation loop that can be enabled/disabled with a PMOS switch, either to drive a second LED string or to extend analog dimming range.

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