LT3795IFE#PBF
Active110V LED CONTROLLER WITH SPREAD SPECTRUM FREQUENCY MODULATION
Deep-Dive with AI
Search across all available documentation for this part.
LT3795IFE#PBF
Active110V LED CONTROLLER WITH SPREAD SPECTRUM FREQUENCY MODULATION
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LT3795IFE#PBF |
|---|---|
| Dimming | Analog, PWM |
| Frequency [Max] | 1 MHz |
| Frequency [Min] | 100 kHz |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | Exposed Pad, 28-TSSOP |
| Package / Case [custom] | 4.4 mm |
| Package / Case [x] | 0.173 in |
| Supplier Device Package | 28-TSSOP-EP |
| Type | DC DC Controller |
| Voltage - Supply (Max) [Max] | 110 V |
| Voltage - Supply (Min) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
LT3795 Series
The LT3795 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 (SSFM) can be activated for improved electromagnetic compatibility (EMC) 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. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL inputs provide additional analog dimming capability.APPLICATIONSHigh Power LED, High Voltage LEDBattery ChargersAccurate Current Limited Voltage Regulators