Zu Produktinformationen springen
1 von 7

Mikroelektronika d.o.o.

LED-Treiber 7 Click-Platine

LED-Treiber 7 Click-Platine

SKU: MIKROE-3917
Normaler Preis
£19.60 GBP ohne MwSt
Normaler Preis £28.00 GBP Verkaufspreis
£19.60 GBP ohne MwSt
Sale Ausverkauft
Versand wird beim Checkout berechnet
If no stock shown above, check availability
Vollständige Details anzeigen
} ] }

Overview

Das LED Driver 7 Click Board™ ist mit dem LTC3490, einem einzelligen 350-mA-LED-Treiber von Analog Devices, ausgestattet. Das LED Driver 7 Click Board™ kann für tragbare Beleuchtung, wiederaufladbare Taschenlampen, Systemkalibrierungen, elektronische Pegeleinstellungen, Anpassungen der Automobilelektronik, mechanische Trimmer und Potentiometerersatz verwendet werden. Der LED-Antriebsstrom kann durch Ändern der Spannung am CTRL/SHDN-Pin mit AD5171, einem 64-Positionen-OTP-Digitalpotentiometer von Analog Devices (ADI), reduziert werden.

How Does The LED Driver 7 Click Board™ Work?

The LED Driver 7 Click Board™ features the LTC3490, single cell 350mA LED driver from Analog Devices. It provides a constant current drive for 1W LED applications. It is a high efficiency boost converter. Some of its key features include the 350mA Constant Current Output, Fixed Frequency Operation: 1.3MHz, Low Quiescent Current: <1mA and Dimming Control.

LED Driver 7 Click Board™

The LED Driver 7 Click Board™ also features the AD5171, a 64-position OTP digital potentiometer from Analog Devices. The AD5171 is used for changing the voltage on the CTRL/SHDN pin. This voltage can control the LED drive current from 0mA to 350mA. The AD5171 uses fuse link technology to achieve the memory retention of the resistance setting function. OTP is a cost-effective alternative over the EEMEM approach for users who do not need to reprogram new memory settings in the digital potentiometer. This device performs the same electronic adjustment function as most mechanical trimmers and variable resistors. The AD5171 is programmed using a 2-wire, I2 C®- compatible digital control. It allows unlimited adjustments before permanently setting the resistance value. During the OTP activation, a permanent fuse blown command is sent after the final value is determined, freezing the wiper position at a given setting (analogous to placing epoxy on a mechanical trimmer).

Given the options its features offer, the LED Driver 7 Click Board™ is ideally used for Portable lighting, rechargeable flashlights, system calibrations, electronics level settings, automotive electronics adjustments, mechanical trimmers and potentiometer replacements.

The LED Driver 7 Click Board™ is designed to be operated only with 3.3V logic level. A proper logic voltage level conversion should be performed before the Click Board™ is used with MCUs with logic levels of 5V.

SPECIFICATIONS

Type LED Drivers
Applications Portable lighting, rechargeable flashlights, system calibrations, electronics level settings, automotive electronics adjustments, mechanical trimmers and potentiometer replacements
On-board modules LTC3490, single cell 350mA LED driver from Analog Devices AD5171, a 64-position OTP digital potentiometer also from Analog Devices
Key Features Dimming Control, 350mA Constant Current Output, I2C-compatible digital interface
Interface I2C
Compatibility mikroBUS
Click Board™ size S (28.6 x 25.4 mm)
Input Voltage 3.3V

 

PINOUT DIAGRAM

This table shows how the pinout on LED Driver 7 Click Board™ corresponds to the pinout on the mikroBUS socket (the latter shown in the two middle columns).

Notes Pin mikroBUS logo.png Pin Notes
  NC 1 AN PWM 16 NC  
  NC 2 RST INT 15 NC  
  NC 3 CS RX 14 NC  
  NC 4 SCK TX 13 NC  
  NC 5 MISO SCL 12 SCL I2C Clock
  NC 6 MOSI SDA 11 SDA I2C Data
Power Supply 3.3V 7 3.3V 5V 10 NC  
Ground GND 8 GND GND 9 GND Ground


ONBOARD SETTINGS AND INDICATORS

Label Name Default  Description
LD1 PWR - Power LED Indicator

 

Frequently Asked Questions

Have a Question?

Be the first to ask a question about this.

Ask a Question

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)