PT4101 PT4101E23F
PT4101 PT4101E23F ORIGINAL
FEATURES
Drives Up to 5 Series White LEDs from 3V
z Up to 87% Efficiency
1.25MHz Fixed Switching Frequency
Low 104mV Feedback Voltage
Open Load Shutdown
PWM Dimming
SOT23-6 Packages
APPLICATIONS
Cell Phones
Handheld Computers and PDAs
Digital Cameras
Small LCD Displays
38,500 تومان
150 در انبار
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Free delivery from $99
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توضیحات
White LED Step-Up Converter
The PT4101 is a step-up DC/DC converter designed fordriving up to 5 white LEDs in series from a single cell
Lithium Ion battery with constant current. Because it
directly regulates output current, the PT4101 is ideal for
driving light emitting diodes (LEDs) whose light
intensity is proportional to the current passing through
them, not the voltage across their terminals. A single
external resistor sets LED current between 2mA and
20mA, which can then be easily adjusted using either a
DC voltage or a pulse width modulated (PWM) signal
up to 100KHz. Its low 104mV feedback voltage
reduces power loss and improves efficiency. The OV
pin monitors the output voltage and turns off the
converter if an over-voltage condition is present due to
an open circuit condition. The PT4101 is available in
SOT23-6 packages
توضیحات تکمیلی
| Package |
SOT23 6PIN |
|---|---|
| کیفیت |
original |
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