40V LED Driver with Internal Switch

The ZLED7000, one of our ZLED Family of LED control ICs, is an inductive step-down converter that is optimal for driving a single LED or multiple LEDs (connected in series) from a voltage source greater than the voltage rating of the LED. The ZLED7000 operates in continuous mode. Capable of operating efficiently with voltage supplies ranging from 6 VDC to 40 VDC, it is ideal for low-voltage lighting applications. The ZLED7000 minimizes current consumption by remaining in a low-current standby mode (output is off) until a voltage of ≥0.3V is applied to the ADJ pin.

In operating mode, the ZLED7000 can source LEDs with an output current of ≤750mA (≤30 watts of output power) that is externally adjustable (see data sheet). The ZLED7000's integrated output switch and high-side current sensing circuit use an external resistor to adjust the average output current. Linearity is achieved via an external control signal at the ZLED7000's ADJ pin, implemented either as a pulse-width modulation (PWM) waveform for a gated output current or a DC voltage for a continuous current.

Features

  • Capable of up to 95% efficiency
  • Operates in continuous mode with a wide input range from 6 VDC to 40 VDC
  • Integrated 40V power switch
  • One pin on/off or brightness control via PWM or DC voltage control signal input
  • Switching frequency: ≤1MHz
  • Dimming rate: 1200:1 (typical)
  • Output current accuracy: 5% (typical)
  • Built-in thermal shutdown and open-circuit protection for LED
  • Very few external components needed for operation
  • Broad range of applications: outputs up to ≤750mA
  • SOT89-5 package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
ZLED7000ZI1R Active DZG5 SOT 5 Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZLED7000 Short-form Datasheet Short Form Datasheet PDF 71 KB Apr 19, 2016
ZLED7000 Datasheet Datasheet PDF 557 KB Apr 19, 2016
User Guides & Manuals
ZLED7000KIT-D1 Evaluation Kit Description Manual PDF 547 KB Apr 25, 2016
Application Notes & White Papers
ZLED7000 / ZLED7020 Application Note - Buck Converter LED Driver Applications Application Note PDF 138 KB Apr 20, 2016
PCNs & PDNs
PDN-2017-005-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 106 KB Jun 29, 2017
Other
IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 18, 2016

Evaluation Boards