InnoMux

2 Constant Voltage and 4 Channel Dimming LED Backlight CC Controller

This product must be paired with InnoSwitch3-MX isolated switcher IC.
Typical Schematic

Data Sheets

Product Details

When paired with an InnoSwitch3-MX isolated switcher IC, an InnoMux controller IC dramatically simplifies the power supply design for monitors and TVs by replacing the ACDC and DCDC converters with a single-stage flyback topology. This enables very high system efficiency on a small PCB footprint.

The LED backlight control offers excellent minimum threshold regulation as well as analog and several PWM dimming options. The sequenced PWM dimming option further improves visual performance and stabilizes power demand. Extensive protection features are provided.

Product Highlights

CV and 4-Channel LED Backlight Controller

  • Eliminates buck and LED backlight boost converters
  • One or two constant voltage outputs
    - Independently regulated outputs with instantaneous transient response ±5% CV on 0%-100%-0% load step
  • Typical output voltages
    - One CV mode: 5 V to 18 V
    - Two CV mode: 5 V and 12 V to 18 V
  • 1-4 string LED backlight
    - 3% matching accuracy for LED strings
    - Analog, PWM, sequenced PWM and filtered PWM operation
    - Up to 100 V string voltage / up to 960 mA total string current
    - Up to 2:1 LED string voltage range

Advanced Protection / Safety Features

  • Individual overload protection for all outputs
  • String imbalanced / short / open protection
  • Output overvoltage set for auto-restart

Convenient Packages

  • 28-Lead HSOP for single-sided wave soldered PCBs or small 28-Lead QFN (5x5 mm Body) for compact multilayer designs

Applications

Power Table

ProductOutput ConfigurationPackage
IMX101J1 CV, 1 LED stringQFN
IMX101U1 CV, 1 LED stringHSOP
IMX111U2 CV, 1 LED stringHSOP
IMX102U1 CV, 4 LED stringHSOP

Product Documents

Design Examples

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