Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
The PT4401/2 is a series of White/Blue LED drivers, with PT4401 capable of driving three LEDs and PT4402 driving four LEDs. There is no external component needed, which helps to simplify the system design and lower the system cost significantly. The circuit is optimized to provide over 90% efficiency. The PT4401/2 is ideal to drive white LEDs used for Li-ion.
z No external component required z Fixed 20mA or 15mA sinking current z Individual current sink circuit for each output to prevent short/open circuit on LEDs z PTC LED current for luminosity compensation z 3 channels (PT4401/SOT23-6) and 4 channels (PT4402/MSOP-8) available z PWM tuned LED brightness through EN pin z Supply voltage range 2.7V~6.0V z 0.1uA standby current APPLICATIONS z Mobile phone z PDAs z MP3s TYPICAL APPLICATION VDD VDD PT440X GND EN LED1 LED2 . . . . . . LEDn Micro Bridge Technology Co.,Ltd. www.micro-bridge.com Page 1 PT4401/2 3/4 Channel Parallel White/Blu.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | PT4401 |
Micro Bridge Technology |
3/4 Channel Parallel White/Blue LED Drivers |
|
| 2 | PT4404 |
PowTech |
Low Dropout Adjustable 350mA Current Regulator |
|
| 3 | PT4410 |
Jin Yu Semiconductor |
N-Channel MOSFET |
|
| 4 | PT44201D |
Bourns |
Single Port 10/100 Base-Tx |
|
| 5 | PT4435 |
Jin Yu Semiconductor |
P-Channel MOSFET |
|
| 6 | PT4450 |
PTC |
SAW-based ASK/OOK Transmitter |
|
| 7 | PT4455 |
Princeton Technology |
PLL-based OOK/ASK Transmitter |
|
| 8 | PT4101 |
Powtech |
White LED Step-Up Converter |
|
| 9 | PT4102 |
Micro Bridge Technology |
Step-up White LED Driver |
|
| 10 | PT4103 |
Powtech |
White LED Step-Up Converter |
|
| 11 | PT4105 |
Powtech |
Step-Down Power LED Driver |
|
| 12 | PT4107 |
Powtech |
Universal High Brightness LED Driver |
|