BD9486F

Datasheet LED Drivers for LCD Backlights 1ch Boost up type White LED Driver for large LCD BD9486F 1.1 General Description BD9486F is a high efficiency driver for white LEDs and is designed for large LCDs. BD9486F has a boost DCDC converter that employs an array of LEDs as the light source. BD9486F has some protect functions against fault conditions, such as over-voltage protection (OVP), over current limit protection of DCDC (OCP), LED OCP protection, and Over boost protection (FBMAX). Therefore it is available for the fail-safe design over a wide range output voltage. Key Specifications  Operating power supply voltage range:9.0V to 18.0V  Oscillator frequency of DCDC: 150kHz (RT=100kΩ)  Operating Current: 2.6mA(Typ.)  Operating temperature range: -40°C to +85°C 1.2 Package(s) SOP16 W(Typ) x D(Typ) x H(Max) 10.00mm x 6.20mm x 1.71mm Pin pitch 1.27mm Features  DCDC converter with current mode  VOUT discharge function at shutdown  LED protection circuit (Over boost protection, LED OCP protection)  Over-voltage protection (OVP) for the output voltage Vout  Adjustable soft start  Adjustable oscillation frequency of DCDC  Wide range of analog dimming 0.2V to 3.0V  UVLO detection for the input voltage of the power stage Figure 1. SOP16 Applications  TV, Computer Display, LCD Backlighting 1.3 Typical Application Circuit(s) Figure 2. Typical Application Circuit ○Product structure：Silicon monolithic integrated circuit .www.rohm.com © 2013 ROHM Co., Ltd. ...