ZMD ZLED7012 and ZLED7022 LED Control ICs

ZMDI announced the ZLED7012 and ZLED7022 LED control ICs. The ZLED7012 and ZLED7022 feature low-noise, constant-frequency charge pump DC/DC converters that can efficiently drive up to four (ZLED7012) or six (ZLED7022) strings of LEDs. The ZLED7012 and ZLED7022 come in a 12-pin UTQFN package (2mm x 2mm). The ZLED7012 is priced at €0.32 and the ZLED7022 is priced at €0.39. Both parts are available in mass production now. Full application kits, application notes, and an evaluation board are also available now.

ZMD ZLED7012 LED Control IC

ZMD ZLED7012 and ZLED7022 LED Control ICs Features

  • Drives up to four (ZLED7012) or six (ZLED7022) strings of LEDs
  • Low quiescent current in low-current shutdown mode: 1µA typical; <µA maximum
  • Integrated thermal shutdown protection prevents damage by shutting down the IC if the die junction temperature exceeds 160°C (typical)
  • Fixed charge pump switching frequency: 1MHz (typical)
  • Soft-start feature protects against excessive inrush current during power-on
  • Current matching accuracy: ±0.9% (typical)
  • One-pin on/off or brightness control for up to four LEDs via a simple PCC serial interface — no pulse-width modulation or additional control circuit needed
  • 14 programmable current levels for achieving real-time control of effects such as LED fade-out or sudden changes in brightness
  • Low EMI and back-injected noise because the charge pump is not inductor-based
  • Very few external components needed for operation
  • Flexible design enables diverse LED applications: up to 20mA per channel
ZMD ZLED7022 LED Control IC

More information: Zentrum Mikroelektronik Dresden AG (ZMDI)