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CAT4134 - Dual Channel LED Driver

General Description

The CAT4134 is a high power, dual channel boost converter which provides two matched LED currents.

Output current levels are controlled by one of two resistors RSET or RFLASH.

When the FLASH input pin is low (movie mode), RSET sets the current.

Key Features

  • Dual Mode (Movie or Flash) Operation.
  • Independent Movie/Flash LED Current Control.
  • Can Drive 2, 3, 4 or 6 LEDs.
  • High LED Current (250 mA Max per Channel).
  • Power Efficiency up to 85%.
  • Dual Frequency Mode 1.2 MHz and 900 kHz.
  • Soft.
  • start Inrush Current.
  • Adjustable Overvoltage Protection.
  • Thermal Shutdown Protection.
  • Operating Temperature Range.
  • 40°C to +85°C.
  • 12.
  • pad TDFN 3 mm.

📥 Download Datasheet

Datasheet Details

Part number CAT4134
Manufacturer onsemi
File Size 295.33 KB
Description Dual Channel LED Driver
Datasheet download datasheet CAT4134 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
CAT4134 LED Driver, Dual Channel Movie/Flash, 500 mA Description The CAT4134 is a high power, dual channel boost converter which provides two matched LED currents. Output current levels are controlled by one of two resistors RSET or RFLASH. When the FLASH input pin is low (movie mode), RSET sets the current. When FLASH is high (flash mode), the resistor RFLASH sets the LED current. Each channel drives two or three white LEDs in series and provides a regulated current to control their brightness. Input supply down to 3 V is supported, making the device ideal for Li−Ion battery applications. High frequency low noise operation allows the device to be used with small external inductors and ceramic capacitors while still maintaining excellent efficiency.