Many of the commercial “high volume” printers in production today are network linked, either via an ethernet port or wirelessly and feature an LCD control panel. Many are powered by wall adapters or feature an off-line AC-DC converter module proving a single fixed low DC voltage. Kinetic Technologies provide a range of solutions, not only to improve performance, such as EMI/ESD, but also power management solutions to provide protection against overvoltages, on both power and data lines, boost and Buck converters to provide additional internal voltage rails and to optimize the LED backlight of the LCD control panel.


Buck and Boost Converters

Part Number Description
KTC2110 3.0Mhz High Efficiency, Low IQ Synchronous Boost Converter

LCD Backlight LED Drivers

Printer control panels using LCD displays are illuminated by LED backlighting. White LEDs are used for ?????? color LCD displays and lower cost IP phones use monochrome displays with either white or other fixed ?? color LEDs. Backlight LED strings are configured in series or series/parallel configurations that often ??????? require the supply voltage to be boosted from the PoE source. Multiple current sink drivers connect to ????? long serial strings of WLEDs and therefore require a compliance voltage significantly higher than the ?? battery voltage.

  • Panel size and resolution determine the number of white LEDs (WLED) required to produce the necessary screen brightness
  • Dimming techniques to control the brightness can range from simple linear LED brightness control to sophisticated high efficiency PWM control to achieve contrast ratios of typically 20,000:1
  • High accuracy current sinks to provide uniform backlight across larger panel sizes
  • High efficiency boost power conversion required to minimize demands on battery power consumption and maximize the battery life between charge cycles

Product Highlights:

  • Multiple series/parallel strings of WLED drivers to match the display panel needs
  • Multiple programming options from simple PWM signal control to full-featured I2C interfaces.
  • Advanced design, low drop-out current sinks with tight linearity characteristics to maintain constant LED current accuracy over all battery voltage extremes
  • High efficiency boost converters with integrated protection against LED open and short-circuit conditions
Part Number Description
KTD117 Linear-mode 4+2 -Channel LED Driver
KTD251 Step-Up LED Driver with PWM Control
KTD2531 Step-Up LED Driver with PWM Control
KTD2536 Step-Up LED Driver with PWM Control
KTD2500 Step-Up LED Driver with ExpressWire or PWM Control
KTD2505R Step-Up LED Driver with ExpressWire or PWM Control
KTD2511C Step-Up LED Driver with PWM Control
KTD2511D Step-Up LED Driver with PWM Control
KTD2801 Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming
KTD2801A Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming
KTD2801B Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming
KTD314 High Efficiency, Wide Voltage Range 20-LED Driver
KTD315 High Efficiency, Wide Voltage Range 30-LED Driver
KTD3112 High Efficiency Step-Up 2-Ch LED Driver, 25V OVP
KTD3113 High Efficiency Step-Up 3-Ch LED Driver, 25V OVP
KTD3116-1 High Efficiency Step-Up 2-Ch LED Driver, 31V OVP
KTD3117-1 High Efficiency Step-Up 3-Ch LED Driver, 31V OVP
KTD3118 High Efficiency Step-Up 2-Ch LED Driver, 42V OVP
KTD3119 High Efficiency Step-Up 3-Ch LED Driver, 42V OVP
KTD3122 2-Ch Step-Up LED Driver with Integrated Power Diode
KTD3137 High Efficiency 3-Channel LED Backlight with Panel Flash Function
KTD3156 6-Ch Step-Up LED Driver with PWM-Control Mixed-Mode Dimming
KTD3156B 6-Ch Step-Up LED Driver with PWM-Control Mixed-Mode Dimming, low duty dimming
KTD325 High Efficiency, Wide Voltage Range 30-LED RGB Driver

RGB Drivers

Printers often use multicolor RGB LEDs for indicator lamps. Indicator lamps show power on/off or function status. Implementing indicator lamp LED control circuits to interface LED control switching to microcontroller logic is a tedious design process and requires multiple discrete components.

  • RGB LED drivers allow simplified programmable control of LED color and brightness

Product Highlights:

  • 3-channel RGB LED drivers permit custom color control
  • 4-channel RGBW devices allow for driving a white LED in addition to the RGB LED
  • Multiple programming options include I2C or ExpressWire to ease integration with a wide variety of processors and operating systems
  • Wide range of ramp up/down timing for slow fade in/out effects and complex repeating patterns
  • Ultra-small package footprint
Part Number Description
KTD2021 3-Channel RGB LED Driver with ExpressWire Control
KTD2022 3-Channel RGB LED Driver with ExpressWire Control
KTD2023 4-Channel RGBW LED Driver with ExpressWire Control
KTD2026 3-Channel RGB LED Driver with I2C Control
KTD2027 4-Channel RGBW LED Driver with I2C Control
KTD2037 3-Channel RGB LED Driver with I2C Control, AutoBlinQ™

EMI/ESD Suppression

Kinetic Technologies’ EMI/ESD Suppression solution is the industry’s first of its kind, integrating ESD and Common Mode EMI suppression IC to improve EMC performance in Ethernet applications. It is built around Kinetic Technologies’ patented and proprietary Active EMC suppression technology to enable a “Design for Compliance” approach to system design right from the start. This product helps eliminate EMC compliance challenges by providing consistent EMC performance and improvements utilizing silicon-based technology as opposed to passive technologies. EMI/ESD Suppression enables system designers to comply with:

  • CISPR22 and FCC Part 15, Class B requirements for Radiated and Conducted Emissions.
  • IEC 61000-4-3/6 requirements for Radiated and Conducted Immunity, Level 3 or higher.
  • IEC 61000-4-2 ESD (Air Discharge) of ±25kV.
  • IEC 61000-4-2 ESD (Contact Discharge) of ±12kV.
  • Cable Discharge Event (CDE) of ±12kV.
Part Number Description
KTA1550 Dual-channel Active Choke for EMI Suppression w/ Integrated ESD Protection
KTA1552 Quad Channel Active EMI & ESD Suppressor for Ethernet Applications

Overvoltage and Surge Protection ICs

Part Number Description
KTS1640 Load Switch with OVP and Reverse Polarity Protection
KTS1641 Load Switch with OVP and Reverse Polarity Protection
KTS1650B 4.5 Amp Overvoltage Protection IC with Surge Protection
KTS1668 100V Surge Protected OVP Switch, with sense output
KTS1680A 100V Surge Protected OVP Switch
KTS1680C 100V Surge Protected OVP Switch

USB Data Line Protection ICs

Part Number Description
KTU1108 USB Type-C Protector for CC Pins