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BD9486F-E2

Description
1ch Boost up type White LED Driver for large LCD
File Size897KB,37 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
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BD9486F-E2 Overview

1ch Boost up type White LED Driver for large LCD

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
W(Typ) x D(Typ) x H(Max)
10.00mm x 6.20mm x 1.71mm
Pin pitch 1.27mm
1.2 Package(s)
SOP16
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. All rights reserved.
TSZ22111・14・001
○This
product has not designed protection against radioactive rays
1/34
TSZ02201-0F1F0C100240-1-2
13.Feb.2014 Rev.004

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BD9486F-E2 BD9486F
Description 1ch Boost up type White LED Driver for large LCD 1ch Boost up type White LED Driver for large LCD
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