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See Technical Specifications

LT3795EFE#PBF

LED Driver IC 1 Output DC DC Controller Analog, PWM Dimming 28-TSSOP-EP

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

LT3795EFE#PBF
Datasheet:

LT3795EFE#PBF Datasheet (PDF)
packingQty:

Tube,50
packingOption:

Tube
tempRange:

-40 to 125C
Series:

LT3795
EDA/CAD Models:

Request Free CAD Models for LT3795EFE#PBF

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LT3795EFE#PBF General Description

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.

Key Features

3000:1 True Color PWM^™ Dimming
Wide Input Voltage Range: 4.5V to 110V
Input and Output Current Reporting
PMOS Switch Driver for PWM and Output Disconnect
Internal Spread Spectrum Frequency Modulation
±2% Constant Voltage Regulation
±3% Constant Current Regulation: 0V ≤ V_OUT ≤ 110V
Programmable Input Current limit
CTRL Inputs Linearly Adjust LED Current

Application

High Power LED, High Voltage LED
Battery Chargers
Accurate Current Limited Voltage Regulators

Specifications

model	LT3795EFE#PBF	packingQty	Tube,50
packingOption	Tube	lifeCycle	production
tempRange	-40 to 125C	Product Category	LED Lighting Drivers
Series	LT3795	Mounting Style	SMD/SMT
Number of Outputs	1 Output	Output Current	400 mA
Input Voltage, Min	4.5 V	Input Voltage, Max	110 V
Topology	Boost, Buck, Buck-Boost, SEPIC	Operating Frequency	100 kHz to 1 MHz
Output Voltage	Adjustable	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C	Features	PWM Dimming, Open LED Protection
Height	1.2 mm	Input Voltage	4.5 V to 110 V
Number of Channels	1 Channel	Product	LED Drivers
Product Type	LED Lighting Drivers	Factory Pack Quantity	50
Subcategory	Driver ICs	Supply Current - Max	3.5 mA
Type	LED Controller	Unit Weight	0.015027 oz