BD9397EFV Series

White LED Driver for large LCD panel

Catalog

White LED Driver for large LCD panel

Part	Mounting Type	Package / Case	Package / Case	Frequency	Applications	Number of Outputs	Internal Switch(s)	Type	Voltage - Supply (Max) [Max]	Topology	Current - Output / Channel	Dimming	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Min) [Min]
Rohm Semiconductor BD9397EFV-GE2	Surface Mount	40-VSSOP (Exposed Pad)	0.213 in 5.4 mm	500 kHz	Backlight	6		DC DC Regulator	35 V	Step-Up (Boost)	400 mA	Analog PWM	40-HTSSOP-B	85 °C	-40 °C	9 V

Catalog

White LED Driver for large LCD panel

Key Features

• 6ch Constant LED drivers,available 400mA drive per 1ch., Constant current accuracy ±1.8%(IC only), Each 6ch external PWM inputs can control independent dimming ., Current analog(linear) dimming by VREF, 1ch boost controller with current mode(external FET), Several protection functionsDCDC part: OCP/OVP/UVLO/TSDLED driver part: OPEN,SHORT detection, SHORT detection voltage is set by LSP terminal.Error detection output FAIL terminal inside(normal=Open, error=Drain)

Description

BD9397EFV is a high efficiency driver for white LEDs and designed for large LCD panel. This IC is built-in high current drive and high responsibility type 6ch LED drivers and 1ch boost DCDC converter. BD9397EFV has some protect function against fault conditions, such as the over-voltage protection (OVP), LED OPEN and SHORT protection, the over current limit protection of DCDC (OCP). Therefore BD9397EFV is available for the fail-safe design over a wide range output voltage.