White LED Driver - ROHM
Description
Datasheet
LED Drivers for LCD Backlights
1ch Boost up type White LED Driver for large LCD
BD9409F
1.
1 General Description
BD9409F is a high efficiency driver for white LEDs and is designed for large LCDs.
BD9409F has a boost DCDC converter that employs an array of LEDs as the light source.
BD9409F 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:
11.
5V to 35.
0V
Oscillator frequency of DCDC: 150kHz (RT=100kΩ)
Operating Current:
2.
8 mA(Typ.
)
Operating temperature range:
-40°C to +105°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 LED protection circuit (Over boost protection(FB_H), LE...
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