White LED Driver
Datasheet
LED Drivers for LCD Backlights
White LED Driver for large LCD Panels (DCDC Converter type)
BD93941EFV BD9394...
Description
Datasheet
LED Drivers for LCD Backlights
White LED Driver for large LCD Panels (DCDC Converter type)
BD93941EFV BD93941FP
General Description
BD93941EFV and BD93941FP is a high efficiency driver for white LEDs and designed for large LCDs. These ICs are built-in a boost DCDC converters that employ an array of LEDs as the light source. BD93941EFV and BD93941FP have some protect function against fault conditions, such as the over-voltage protection (OVP), the over current limit protection of DCDC (OCP), the short circuit protection (SCP), the open detection of LED string. Therefore BD93941EFV and BD93941FP are available for the fail-safe design over a wide range output voltage.
Key Specification
Operating power supply voltage range: 9.0V to 35.0V
LED minimum current
30mA
LED maximum current:
200mA
Oscillator frequency:
150kHz (RT=100kΩ)
Operating Current:
4.5mA (Typ.)
Operating temperature range:
-40°C to +85°C
Applications TV, Computer Display, Notebook, LCD Backlighting
Features 4ch LED constant current driver and DC/DC converter Maximum LED Current: 200mA LED Feedback Voltage: 0.37V (@ADIM=2.5V) so lower heat. Adjustable Feed Back Voltage by following LED Current setting.
2% LED current accuracy (ADIM=2.5V, when each LED is set to 100mA)
Analog current (Linear) dimming at ADIM pin LED pin rating 60V Individual detection and individual LED OFF for both
open and short circuits Built-in ISET pin short-circuit protection circuit Set...
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