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ML4876

Features: ` Backlight lamp driver with differential drive` Up to 30% lower power for same light output` Low standby current (< 10A)` Improved efficiency (»95%)` Allows all N-channel MOSFET drive` Low switching losses` Resonant threshold detection` Buck regulator uses synchronous rectifica...

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ML4876: Features: ` Backlight lamp driver with differential drive` Up to 30% lower power for same light output` Low standby current (< 10A)` Improved efficiency (»95%)` Allows all N-channel MOSFET ...

ML4876 Data Sheet

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Part Number:
ML4876
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/26

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Product Details

Description



Features:

` Backlight lamp driver with differential drive
` Up to 30% lower power for same light output
` Low standby current (< 10A)
` Improved efficiency (»95%)
` Allows all N-channel MOSFET drive
` Low switching losses
` Resonant threshold detection
` Buck regulator uses synchronous rectification


Pinout

Connection Diagram


Specifications

Supply Current (ICC) ............................................... 75mA
Output Current, Source or Sink .............................. 250mA
Voltage on HVDD ........................................................ 20V
Current into L RTD ................................................. ±10mA
Transient Voltage on B ON ............................................ 9V
Voltage on Any Other Pin .................. 0.3V to VDD +0.3V
Junction Temperature ............................................... 150
Storage Temperature Range ..................... 65 to 150
Lead Temperature (Soldering 10 sec.) ..................... 260
Thermal Resistance (qJA) Plastic SSOP ................ 100/W


Description

The ML4876 is an ideal solution for driving small cold cathode fluorescent tubes (CCFL) used in liquid crystal display (LCD) backlight applications. It provides the dimming ballast control and the contrast control for the LCD display.

By utilizing differential drive the ML4876 can deliver the same light output with significantly less input power compared to existing single ended drive schemes.

Improvements of ML4876 as high as 30% can be realized when using low power lamps and advanced LCD screen housings. This increased light output is achieved because the differential drive configuration is much less sensitive, and therefore less power is wasted in the capacitive parasitics that exist in the backlight housing. An additional benefit of this configuration is an even distribution of light.




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