BD9422EFV
White LED Driver for large LCD panel
BD9422EFV
White LED Driver for large LCD panel
BD9422EFV 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. BD9422EFV 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 BD9422EFV is available for the fail-safe design over a wide range output voltage.
For Automotive usage, please contact Sales.
Product Detail
Specifications:
Topology
Boost
Vin(Min.)[V]
9
Vin(Max.)[V]
35
Per Channel Drive(Max.)[mA]
400
Number of Outputs
6
Switching Frequency (Max.)[MHz]
0.5
Dimming
PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
13.6x7.8 (t=1)
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 functions
DCDC part : OCP/OVP/UVLO/TSD
LED driver part :OPEN,SHORT detection - SHORT detection voltage is set by LSP terminal. Error detection output FAIL terminal inside (normal=Open, error=Drain)
- Master/Slave mode inside
