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Description

The ZXLD1366 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 6V and 60V and provides an externally adjustable output current of up to 1A. 
 
The ZXLD1366 has been qualified to AECQ100 Grade 1 enabling operation in ambient temperatures from -40°C to +125°C. 
 
The ZXLD1366 uses a high-side output current sensing circuit which uses an external resistor to set the nominal average output current. The output current can be adjusted above, or below the set value, by applying an external control signal to the 'ADJ' pin. Enhanced output current dimming resolution can be achieved by applying a PWM signal to the ‘ADJ’ pin. 
 
Soft-start can be forced using an external capacitor from the ADJ pin to ground. Applying a voltage of 0.2V or lower to the ADJ pin turns the output off and switches the device into a low current standby state.

Application(s)

  • Automotive Lighting 
  • Low Voltage Industrial Lighting 
  • LED Back-up Lighting 
  • Illuminated Signs 
  • Emergency Lighting 
  • SELV Lighting 
  • Refrigeration Lights

Feature(s)

  • Typically better than 0.8% output current accuracy 
  • Simple and with low part count 
  • Single pin on/off and brightness control using DC voltage or PWM 
  • PWM resolution up to 1000:1 
  • High efficiency (up to 97%) 
  • Switching frequencies up to 1MHz 
  • Wide input voltage range: 6V to 60V 
  • Inherent open-circuit LED protection 
  • Available in thermally enhanced Green molding packages
    • SO-8EP θJA = +45°C/W 
    • V-DFN3030-6 θJA = +44°C/W 
    • TSOT25 θJA = +82°C/W 
  • Totally Lead-free & Fully RoHS Compliant  
  • Halogen and Antimony Free. “Green” Device  
  • Qualified to AEC-Q100 Grade 1
    • SO-8EP ZXLD1366EN8TC 
    • TSOT25 ZXLD1366ET5TA 
 

Product Specifications

Product Parameters

Qualified to AECQ10x No
Compliance (Only Automotive supports PPAP) Standard
Topologies (Buck) Yes
Topologies (Buck-Boost) No
Topologies (Boost) No
MinimumInput Voltage 6 V
MaximumInput Voltage 60 V
Maximum Output Voltage 60 V
Maximum LED Current 1 A
LED Current Accuracy 2.5 %
Switching Frequency Maximum 625 kHz
Dimming (PWM) Yes
Dimming (Analog) Yes
Efficiency 95 %
OperatingTemperatureRange -40 to 125 °C
Sense Voltage 200 mV
AEC-Q100 Grade No

Related Content

Packages
SO-8
TSOT25
V-DFN3030-6

Technical Documents

Evaluation Board User Guides

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
ZXLD1366DACTC

ZXLD1366DACTC

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 447 4/18/2021 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 1877 4/18/2021 South America, North America, Asia, Europe, Middle East Buy Now
RS Components Ltd. 2875 4/18/2021 Japan Buy Now
Micronetics GmbH 4125 4/15/2021 Germany Contact Sales
Request Sample
ZXLD1366EN8TC

ZXLD1366EN8TC

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 2500 4/18/2021 United States Buy Now
Digi-Key Electronics 14507 4/18/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 2333 4/18/2021 England Buy Now
Farnell, An Avnet Company 2333 4/18/2021 England Buy Now
Mouser Electronics Inc. 3165 4/18/2021 South America, North America, Asia, Europe, Middle East Buy Now
RS Components Ltd. 7520 4/18/2021 Japan Buy Now
Micronetics GmbH 428 4/15/2021 Germany Contact Sales
Request Sample
ZXLD1366ET5TA

ZXLD1366ET5TA

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 3000 4/18/2021 United States Buy Now
Digi-Key Electronics 2900 4/18/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 1565 4/18/2021 England Buy Now
Farnell, An Avnet Company 1565 4/18/2021 England Buy Now
RS Components Ltd. 28 4/18/2021 Japan Buy Now
Future Electronics - Europe 6000 4/17/2021 England Contact Sales
Micronetics GmbH 1974 4/15/2021 Germany Contact Sales
Request Sample
ZXLD1366QEN8TC

ZXLD1366QEN8TC

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2370 4/18/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample