ON SEMICONDUCTOR  

CAT3648 Series 25 mA 5.5 V 1.3 MHz SMT Quad Mode 4-Channel LED Driver - TQFN-16

Mfr Part#: CAT3648HV3-GT2
Mounting Method:  Surface Mount
Package Style:  TQFN-16
Packaging:  Cut Tape
Std Packaging Qty:  2,000

 
 

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Prices

$0.5444 USD (each)
1 - 299 $0.5444
300+ $0.4944 (Save 9%)

Availability

Qty in Stock :   7
Factory Stock : 30,000
Factory Lead-Time: 5-10 Days
Min. Order Qty: 1
Multiple of: 1
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Overview

Product Highlight

  • Output Current per Channel: 25 mA
  • Output Voltage: 7 V
  • Supply Voltage: 2.5 to 5.5 V
  • Switching Frequency-Max: 1.3 MHz

The CAT3648 is a 4-Channel Ultra High Efficiency Quad-Mode LED Driver with 32 Dimming Levels.

The CAT3648 is a high efficiency quad−mode fractional charge pump that can drive up to four LEDs programmable by a one wire digital interface. The inclusion of a 1.33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors. Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors. The multi−fractional charge pump supports a wide range of input voltages from 2.5 V to 5.5 V. The EN/DIM logic input functions as a chip enable and a digital dimming interface for setting the current in all LED channels. The 1−wire pulse−dimming interface supports 32 linear steps from full−scale down to zero current. The device is available in the tiny 16−pad TQFN 3 mm x 3 mm package with a max height of 0.8 mm. ON Semiconductor’s Quad−Mode® 1.33x, charge pump switching architecture is patented.

Key Features:

  • High Efficiency 1.33x Charge Pump
  • Quad−mode Charge Pump: 1x, 1.33x, 1.5x, 2x
  • Drives up to 4 LEDs at 25 mA Each
  • 1−wire EZDim 32 Linear Steps
  • Power Efficiency up to 92%
  • Low Noise Input Ripple in All Modes
  • “Zero” Current Shutdown Mode
  • Soft Start and Current Limiting
  • Short Circuit Protection
  • Thermal Shutdown Protection
  • 3 mm x 3 mm, 16−pad TQFN Package
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

Applications:

  • LCD Display Backlight
  • Cellular Phones
  • Digital Still Cameras
  • Handheld Devices

To learn more about the CAT3648 product family, Click Here

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