大型LCD面板用白光LED驅動器 - BD9397EFV
BD9397EFV是大型LCD面板用高效率白光LED驅動器。此IC的6個通道內建了大電流驅動、高速脈衝響應型恆流LED驅動器,1個通道內建了升壓型DCDC。BD9397EFV針對異常狀態配備了過電壓保護(OVP) 、LED OPEN・SHORT保護、DCDC的過電流保護(OCP)等各種保護功能。因此，BD9397EFV可在大範圍輸出電壓下進行自動防故障設計。
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規格:
Topology
Boost
Number of Outputs
6
Vin(Min.)[V]
9.0
Vin(Max.)[V]
35.0
Output Current(Max.)[mA]
400.0
Frequency(Max.)[MHz]
1.25
Integrated FET
No
Dimming
PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
功能:
· 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)