參數資料
型號: YB1519
廠商: YOBON TECHNOLOGIES, INC.
英文描述: High-Power White LED Driver
中文描述: 大功率白光LED驅動器
文件頁數: 1/7頁
文件大?。?/td> 280K
代理商: YB1519
YB1519
High-Power White LED Driver
YB1519 MRev.1.2
www.yobon.com.tw
1
Description
The YB1519 is a high-power boost
converter. An adjustable current limit, wide
range of input voltage, and up to 40V of
switch voltage are designed to drive white
LEDs back-lighting for large LCD panel. It
can drive up to 10 LEDs in series or 18
LEDs in parallel/series configuration.
The wide application VIN range makes
YB1519 suitable for many types of battery
applications such as Li-ions, Alkaline, or
Sealed Lead Acid batteries. The adjustable
inductor current optimizes the performance
for different output drive capability by an
external resistor.
The LED current is set by a resistor
connected to FB pin. The On/Of duty with
clock frequency from 1K to 100KHz at EN
pin can control the LED brightness
Typical Application Circuit
Features
2V to 16V Input Voltage
40V Maximum Output Voltage
Drive up to 18 White LEDs
Adjustable Inductor Current
1μs Constant Off-time PFM Control
1KHz to 100KHz PWM Dimming Control
Applications
High Power WLED Backlight Solution
LCD Monitor
LCD TV
Car TV, Portable DVD
GPS navigation system
Handheld Game
YB 1519
VIN= 6 to14V
VIN
EN
Bypass
LX
FB
Iset
PGND
10uF
16V
22uH
4.7uF
35V
RFB
60OHM
SL12
10K
10nF
6.3V
LX
AGND
2K
BZV55-B 36
36V
Figure 1. Typical application circuit
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