DC2079A Multitopology LED Driver by Analog Devices

Status: Production
Series: LT3954
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3954 is a DC/DC converter designed to operate as a constant-current source and constant-voltage regulator. It features an internal low side N-channel MOSFET rated for 40V/5A. The LT3954 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. A voltage feedback pin serves as the input for several LED protection features, and also makes it possible for 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 or external component size.The LT3954 senses output current at the high side or at the low side of the load. The internal PWM generator can be configured to self-oscillate at fixed frequency with duty ratio programmable from 4% to 96%. When driven by an external signal, the PWM input provides LED dimming ratios of up to 3000:1. The CTRL input provides additional analog dimming capability.

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Prices starting from US$203.03

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Features

3000:1 True Color PWM™ Dimming for LEDs
Wide VIN Range: 4.5V to 40V
Rail-to-Rail Current Sense Range: 0V to 40V
Internal 40V/5A Switch
Programmable PWM Dimming Signal Generator
Constant Current (±3%) and Constant-Voltage (±2%) Regulation
Accurate Analog Dimming
Drives LEDs in Boost, SEPIC, CUK, Buck Mode, Buck-Boost Mode, or Flyback Configuration
Output Short-Circuit Protected Boost
Open LED Protection and Reporting
Adjustable Switching Frequency: 100kHz to 1MHz
Programmable VIN UVLO with Hysteresis
C/10 Indication for Battery Chargers
Low Shutdown Current: <1μA
Thermally Enhanced 5mm × 6mm QFN Package

Last 6 months Inventory & Pricing History


Alternative Descriptions

LT3954 Demo Board ? 40VIN 40VO | Analog Devices
LT3954 LED Driver Development Kit | Richardson RFPD


DC2079A Data Conversion Development Kits by Linear Technology

DEMO BOARD LT3954 0.65A/32V LED DRIVER

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Boost Buck Buck-Boost SEPIC
No. of Outputs 1Outputs
Output Current 650mA
Output Voltage 32V
Input Voltage Min 5V
Input Voltage Max 40V
Core Chip LT3954
Dimming Control Type PWM
Kit Contents Demo Board LT3954
Product Range -
SVHC No SVHC (07-Jul-2017)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DC2079A?

Additional datasheets, footprints and schematics for DC2079A are listed on our Part Details page. You can also find images and similar parts to DC2079A on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for DC2079A on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DC2079A price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does DC2079A fall under?

The DC2079A is listed under Multitopology LED Driver.

Can I view similar or alternative parts?

You can view similar parts to DC2079A when available in the Multitopology LED Driver range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the DC2079A you can contact the distributor directly for product support, shipping queries etc.

Is the DC2079A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for DC2079A have stock available?

Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for DC2079A.

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