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 -40 to 85°C 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
Other
IDT CAD Altium Libraries for AID Products Rev 20160819 - PCB Design Files ZIP 1.20 MB Aug 18, 2016

Evaluation Boards