MAX1739, MAX1839 Wide-Brightness-Range CCFL Backlight Controllers

The MAX1739 MAX1839 fully integrated controllers are optimized to drive cold-cathode fluorescent lamps (CCFLs) using the industry-proven Royer Oscillator inverter architecture. The Royer architecture provides near sinusoidal drive waveforms over the entire input range to maximize the life of CCFLs. The MAX1739 MAX1839 optimize this architecture to work over a wide input voltage range, achieve high efficiency, and maximize the dimming range.
The MAX1739 MAX1839 monitor and limit the transformer center-tap voltage when required. This ensures minimal voltage stress on the transformer, which increases the operating life of the transformer and eases its design requirements. These controllers also provide protection against many other fault conditions, including lamp-out and buck short faults.
These controllers achieve 50:1 dimming range by simultaneously adjusting lamp current and "chopping" the CCFL on and off using a digitally adjusted pulse-width modulated (DPWM) method. CCFL brightness is controlled by an Analog voltage or is set with an SMBus"-compatible two-wire Interface MAX1739 .
The MAX1739 MAX1839 drive an external high-side N-channel Power MOSFET and two low-side N-channel Power MOSFETs all synchronized to the Royer Oscillator An internal 5.3V linear Regulator powers the MOSFET drivers and most of the internal circuitry. The MAX1739 MAX1839 are available in space-saving 20-pin QSOP packages and operate over the -40C to +85C temperature range.
By Maxim Integrated Products
MAX1739 's PackagesMAX1739 's pdf datasheet
MAX1739EEP QSOP
MAX1739EEPT QSOP
MAX1739EEP-T QSOP




MAX1739 Pinout, Pinouts
MAX1739 pinout,Pin out
This is one package pinout of MAX1739,If you need more pinouts please download MAX1739's pdf datasheet.

MAX1739 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

Related Electronics Part Number

Related Keywords:

MAX1739 Pb-Free MAX1739 Cross Reference MAX1739 Schematic MAX1739 Distributor
MAX1739 Application Notes MAX1739 RoHS MAX1739 Circuits MAX1739 footprint