Skip to main content
ZLED7010 - Application Circuit
ZLED7010 - Pinout

ZLED7010

40V LED Driver with Temperature Compensation

The ZLED7010, 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 ZLED7010 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 ZLED7010 minimizes current consumption by remaining in a low-current standby mode (output is off) until a voltage of ≥0.3V is applied to the ADJI pin. In operating mode, the ZLED7010 can source LEDs with an output current of ≤750mA (≤30 watts of output power) that is externally adjustable. The ZLED7010's integrated output switch and high-side current sensing circuit use an external resistor to adjust the average out-put current. LED control is achieved via an external control signal at the ZLED7010's ADJI pin, implemented as a pulse-width modulation (PWM) waveform for a gated output current or a DC voltage for continuous current. The ZLED7010 provides a temperature compensation function for maintaining stable and reliable LED operation. LED over-temperature conditions are detected via a negative temperature coefficient (NTC) thermistor mounted close to the LEDs. If an over-temperature condition occurs, the NTC value reaches the value of a threshold resistor and the IC reduces LED current automatically. After the circuit recovers to a safe temperature, current returns to the set value. ADJO outputs and ADJI inputs of consecutive ICs can be interconnected as a driver chain deploying the temperature compensation information of the predecessor. This reduces the part count because only the first stage of the series requires an NTC.

Features

  • Capable of 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 DC voltage or PWM control signal
  • Switching frequency: ≤1MHz
  • Dimming rate: 1200:1 (typical)
  • Output current accuracy: 5% (typical)
  • Built-in temperature compensation and open-circuit protection for LEDs
  • Thermal shutdown protection for the ZLED7010
  • Very few external components needed for operation
  • Broad range of applications: outputs up to ≤750mA
  • SOP-8 package

Product Specification

ArchitectureInput Voltage Range (V)Output Current Max (A)Channels (#)Advanced Features
Buck6.00 - 40.000.751DC Dimming, PWM Dimming

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. RangeCarrier TypeSample & Buy
ZLED7010ZI1RActiveDCG8SOIC8-40 to 85°CReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
no-lock
ZLED7010 Datasheet Datasheet PDF 894 KB Apr 20, 2016
no-lock
ZLED7010 Short-form Datasheet Short Form Datasheet PDF 140 KB Apr 20, 2016
User Guides & Manuals
no-lock
ZLED7010KIT-D1 Demo Kit Description Manual PDF 663 KB Apr 26, 2016
Other
no-lock
IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 19, 2016

Evaluation Boards