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Design goals for a Cold Cathode Fluorescent Lamp (CCFL) converter used in a notebook computer or portable application include small size, high efficiency, and low cost. The UCC3972/3 CCFL controllers provide the necessary circuit blocks to implement a highly efficient CCFL backlight power supply in a small footprint 8 pin TSSOP package. The BiCMOS controller.
• 1mA Typical Supply Current
• Accurate Lamp Current Control
• Analog or Low Frequency Dimming
Capability
• Open Lamp Protection
• Programmable Startup Delay
• 4.5V to 25V Operation
• PWM Frequency Synchronized to
External Resonant Tank
• 8 Pin TSSOP and SOIC Packages Available
• Internal Voltage Clamp Protects Transformer from Over-voltage (UCC3973)
TYPICAL APPLICATION CIRCUIT
DESCRIPTION
Design goals for a Cold Cathode Fluorescent Lamp (CCFL) converter used in a notebook computer or portable application include small size, high efficiency, and low cost. The UCC3972/3 CCFL controllers provid.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | UCC3972 |
Unitrode |
BiCMOS Cold Cathode Fluorescent Lamp Driver Controller |
|
| 2 | UCC3974 |
Texas Instruments |
Dual Cold Cathode Fluorescent Lamp Controller |
|
| 3 | UCC39002 |
Texas Instruments |
Advanced 8-Pin Load-Share Controller |
|
| 4 | UCC3912 |
Unitrode |
Programmable Hot Swap Power Manager |
|
| 5 | UCC3913 |
Texas Instruments |
Negative Voltage Hot Swap Power Manager |
|
| 6 | UCC3915 |
Unitrode |
15-V Programmable Hot Swap Power Manager |
|
| 7 | UCC3916 |
Unitrode |
SCSI Termpower Manager |
|
| 8 | UCC3918 |
Unitrode |
Low On-Resistance Hot Swap Power Manager |
|
| 9 | UCC3921 |
Unitrode |
Latchable Negative Floating Hot Swap Power Manager |
|
| 10 | UCC3926 |
Unitrode |
+-20A Integrated Current Sensor |
|
| 11 | UCC3941-3 |
Unitrode |
(UCCx941-x) 1V Synchronous Boost Converter |
|
| 12 | UCC3941-5 |
Unitrode |
(UCCx941-x) 1V Synchronous Boost Converter |
|