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LINEAR TECHNOLOGY  LT3795EFE#PBF  Led Driver, 1 Output, Boost, Buck, SEPIC, 4.5V-110V in, 1MHz switch, TSSOP-28

Manufacturer Part No:
LT3795EFE#PBF
Order Code:
2365999
Technical Datasheet:
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LINEAR TECHNOLOGY LT3795EFE#PBF
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Product Overview

The LT3795EFE#PBF is a DC/DC Controller designed to regulate a constant-current or constant-voltage and is ideal for driving LEDs. It drives a low-side external N-channel power MOSFET from an internal regulated 7.7V supply. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Spread spectrum frequency modulation can be activated for improved electromagnetic compatibility performance. The ground referred voltage FB pin serves as the input for several LED protection features and also allows the converter to operate as a constant-voltage source. The maximum output current is set by an external resistor and the output current amplifier has a rail-to-rail common mode range. The LT3795 also includes a separate input current sensing amplifier that is used to limit input current. The TG pin inverts and level shifts the PWM signal to drive the gate of the external PMOS.
  • 3000:1 True colour PWM™ dimming
  • Input and output current reporting
  • PMOS switch driver for PWM and output disconnect
  • Internal spread spectrum frequency modulation
  • Programmable input current limit
  • CTRL inputs linearly adjust LED current
  • Programmable open LED protection with OPENLED flag
  • Short-circuit protection and SHORTLED flag
  • Programmable under-voltage lockout with hysteresis
  • Soft-start with programmable fault restart timer
  • C/10 Detection for battery charging

Product Information

Device Topology:
Boost, Buck, Buck-Boost, SEPIC
No. of Outputs:
1Outputs
Output Current:
-
Output Voltage:
-
Driver Case Style:
TSSOP
No. of Pins:
28Pins
Input Voltage Min:
4.5V
Input Voltage Max:
110V
Switching Frequency:
1MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • LED Lighting
  • Consumer Electronics

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000426

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