natlinear LN2117
The LN2117 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on cellular phones, PDAs and digital cameras etc.| Part No. | LN2117 |
|---|---|
| Datasheet | LN2117 Download |
| Manufacturer | natlinear |
| Description | Step-up DC/DC Converter - Backlight Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Output voltage of up to 20V can be derived, and from a 3.2V input four white Led’s cab be driven in series or alternatively, using a 3.0V input, a network of six LEDs may be driven. Luminance of the LED’s is controlled by changing the duty cycle of a PWM signal applied to the CE pin.●
FEATURES
● Input voltage range 2.5V—6V● Output voltage range up to 20V
● Oscillation frequency 1MHz±20%
● Efficiency 88%(When driving 3 white LEDs in series VIN=3.6V ILED=20mA)
● Control PWM control
● Stand-by Current ISTB=1.0uA(MAX)
● Load capacitor 0.22uF,ceramic
● LX limit Current 300mA
● Ordering Information LN2117 ①②③④⑤⑥ Item Symbol ①B ②③④ ⑤ ⑥ 010-149 M R L
