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FEATURES The PT4105 is a step-down DC/DC converter designed to operate as a high current LED driver. The PT4105 uses a voltage mode, fixed frequency architecture that guarantees stable operation over wide range of supply voltages and load conditions. The PT4105 senses the output current by measuring the voltage across an external resistor in series with th.
The PT4105 is a step-down DC/DC converter designed to operate as a high current LED driver. The PT4105 uses a voltage mode, fixed frequency architecture that guarantees stable operation over wide range of supply voltages and load conditions. The PT4105 senses the output current by measuring the voltage across an external resistor in series with the high current LED. This voltage is then fed back to the PT4105 to control the PWM signal that drives the switching device to achieve accurate current regulation. The low 200mV feedback voltage greatly reduces the power dissipation on the external cu.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | PT4101 |
Powtech |
White LED Step-Up Converter |
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| 2 | PT4102 |
Micro Bridge Technology |
Step-up White LED Driver |
|
| 3 | PT4103 |
Powtech |
White LED Step-Up Converter |
|
| 4 | PT4107 |
Powtech |
Universal High Brightness LED Driver |
|
| 5 | PT4110 |
Sharp Electrionic Components |
Side View and Thin Flat Type Phototransistors |
|
| 6 | PT4110 |
Powtech |
High Efficiency White LED Driver |
|
| 7 | PT4110F |
Sharp Electrionic Components |
Side View and Thin Flat Type Phototransistors |
|
| 8 | PT4112 |
PowTech |
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| 9 | PT4113 |
PowTech |
480mA LED backlight |
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| 10 | PT4115 |
PowTech |
1.2A Step-down High Brightness LED Driver |
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| 11 | PT4115B |
LIZE |
Continuous inductor current conduction mode drop Constant current source |
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| 12 | PT4115C |
LIZE |
500mA high light ratio LED constant current driver |
|