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White LED Driver for large LCD panel - BD9422EFV

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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BD9422EFV-E2 Active HTSSOP-B40 2000 2000 Taping Yes
 
Specifications:
Topology Boost
Number of Outputs 6
Vin(Min.)[V] 9.0
Vin(Max.)[V] 35.0
Per Channel Drive(Max.)[mA] 400.0
Frequency(Max.)[MHz] 0.5
Integrated FET No
Dimming PWM
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
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
 
 
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Technical Data
Application Note

Thermal Resistance