EEWORLDEEWORLDEEWORLD

Part Number

Search

YB1520

Description
high power step-up DC-DC converter, white led driver
File Size2MB,18 Pages
ManufacturerYobon Technologies, INC
Websitehttp://www.yobon.com.tw/
Download Datasheet Compare View All

YB1520 Overview

high power step-up DC-DC converter, white led driver

YB1520
High Power Step-up DC-DC Converter, White LED Driver
Description
The YB1520 is a step-up DC-DC converter;
operates as current source to drive up to 9
white LEDs in series or 30 white LEDs in
parallel/series configuration. Series connecting
of the LEDs provides identical LED currents
resulting in uniform brightness and eliminating
the need for ballast resistors. The light intensity
of these LEDs is proportional to the current
passing through them. The YB1520 switches at
a fixed frequency of 700KHz, allowing the use
of tiny, low profile inductors and capacitors to
minimize footprint and cost in space
consideration applications for cellular phone
backlighting or other hand held equipment.
The YB1520 can drive up to 9 white LEDs from
a single Li-Ion battery and drive up to 30 white
LEDs from a 5V. The wide input voltage range
from 2.7V to 16V is ideal for portable and
automotive (5V/12V) applications with higher
conversion efficiency. To control LED
brightness, the LED current can be pulsed by
applying a PWM (pulse width modulated) signal
with a frequency range of 100Hz to 50KHz to
the CTRL pin.
YB1520 has integrated Over Voltage Protection
that prevents damage to the device in case of a
high impedance output due to faulty LED or
open circuit caused by abnormal conditions.
Features
Built-in internal switch
Adjustable output voltage up to 35V
2.7V to 16V input range
<1uA shutdown current
High efficiency
Drives up to 30 white LEDs in
Parallel/series
Over voltage protection
Small 5-Lead SOT-23 package
Applications
LCD Display Module
White LED Backlighting
PDAs, GPS terminals
Digital Cameras
Cellular Phone
Electronic Books
Portable Applications
Typical Application Circuit
Figure 1: Typical Application Circuit
YB1520 MRev.1.2
www.yobon.com.tw
1

YB1520 Related Products

YB1520 YB1520ST25
Description high power step-up DC-DC converter, white led driver high power step-up DC-DC converter, white led driver
In-depth study of SD card operation~
The Lm3s8962 evaluation kit has an SD card interface using SPI . My SD card is 256M , so I will start designing the SD card reading and writing program.SPI interface SD card 1. SPI interfaceSPI is a f...
xielijuan Microcontroller MCU
Connect the display via wince smartphone usb
I have a project that requires an external display for a mobile phone, probably 10-15 inches, and I want to ask if there is a ready-made product. If not, is it feasible to develop a new product?...
jasonkiller Embedded System
If we can implement object-oriented programming with structures, then why do we need C++?
From EEWORLD cooperation group: 49900581...
秋水-剑圣 Embedded System
Temperature sensor in STM32
I'm using an STM32F103C8, and the datasheet says that sensors and VREFINT are only available on the main ADC peripheral. What does that mean?...
爱好汽车电子 stm32/stm8
Miscellaneous talks on rectification (Part 2)
[i=s] This post was last posted by maychang on 2016-2-26 15:13 Edit[/i][align=left][b][size=2]Except for very simple and crude loads such as DC motors, the rectifier circuits in electronic devices nee...
maychang Power technology
Help: Can FLASH write to any address for next access?
RT, I want to save 20 bytes of data in the program, and it will not be lost when the power is off. Can I write it directly into the FLASH, that is, I specify an address to write it in, and then read t...
自然的天意 stm32/stm8

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1227  901  1859  519  1638  25  19  38  11  33 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号