DC2020A Multitopology LED Driver by Analog Devices

Status: Production
Series: LT3955
RoHS: Compliant
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The LT3955 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 80V/3.5A. The LT3955 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 LT3955 senses output current at the high side or at the low side of the load. The PWM input 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.

Where to Buy

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 60V
Rail-to-Rail Current Sense Range: 0V to 80V
Internal 80V/3.5A 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

LT3955EUHE Demo Board ? 60VIN | Analog Devices
LT3955 LED Driver Development Kit | Richardson RFPD


DC2020A Data Conversion Development Kits by Linear Technology

DEMO BOARD LT3955 0.3A/67V 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 300mA
Output Voltage 67V
Input Voltage Min 5V
Input Voltage Max 60V
Core Chip LT3955
Dimming Control Type PWM
Kit Contents Demo Board LT3955
Product Range -
SVHC No SVHC (07-Jul-2017)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DC2020A?

Additional datasheets, footprints and schematics for DC2020A are listed on our Part Details page. You can also find images and similar parts to DC2020A on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for DC2020A on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DC2020A price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does DC2020A fall under?

The DC2020A is listed under Multitopology LED Driver.

Can I view similar or alternative parts?

You can view similar parts to DC2020A 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 DC2020A you can contact the distributor directly for product support, shipping queries etc.

Is the DC2020A RoHS compliant?

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

Which authorised distributors for DC2020A have stock available?

Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for DC2020A.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for DC2020A often in real-time on the comparison pages.

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