iC-HT QFN28-5x5

Dual CW Laser Diode Driver for up to 1.5 A

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Product description

The dual channel CW laser diode driver iC-HT can control each channel independently allowing up to 750 mA at a resolution < 1%.
Optical power control (APC) uses an ext. resistor or the internal programmable logarithmic monitor resistor (100 Ω to 500 kΩ step width < 5%).
Overcurrent and overtemperature disables the channels.
Safety related functions, ADC monitoring and chip temperature available.
External DC/DC controllable to optimize power consumption.
The low standby current is < 10 µA.

Features

  • Dual channel CW operation with up to 750 mA each, combinable
  • 2.8 V to 11 V power supply + low current standby mode
  • ACC or APC mode operation, analog monitoring, programming via µC (SPI or I2C)
  • Operation with or without µController
  • Individual enable input per channel
  • Control loop accuracy better than 1 %
  • Internal programmable logarithmic monitor resistor
  • Operating point setup with 10 bit logarithmic resolution
  • A/D converters for analog monitoring
  • Configuration content verification and validation
  • Programmable laser overcurrent protection
  • Optimized for N-type laser diodes
  • Low drop linear regulator for 3.3 V
  • Temperature monitor
  • Temperature range of -40 ... 85 °C

Applications

  • CW N-/M-type laser diode drivers
  • Embedded/safety related laser and LED modules
  • Structured-light 3D illuminations
  • Multiple laser diode control
  • Optical amplification/pumping
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