新設計不推薦
BD9470AEFV
中型、大型LCD背光用白光LED驅動器
BD9470AEFV
Product Detail
規格:
Topology
Boost
Vin(Min.)[V]
9
Vin(Max.)[V]
35
Total Output Current (Max.)[mA]
250
Number of Outputs
6
Switching Frequency (Max.)[MHz]
0.15
Dimming
PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
9.7x6.4 (t=1)
功能:
· 6chLED constantcurrent driver· LED maximum output current 250mA
· Individual PWM dimming modulation allowed for LEDs
· ±2%LED current accuracy (when eachLED is set to 130mA)
· Built-inLED feedback voltage automatic adjustment circuit according toLED current
· Built-in start-up circuit independent of PWM light modulation
· built-in VOUT・FB voltage maintenance function when PWM=Low（0%）
· Built-in LED current stabilization circuit while scanning operation is performed
· Built-in VOUT discharge circuitwhile shutdown
· Built-inLED protection(OPEN / SHORT protection)
· Individual detection and individual LED OFF for both open and short circuit
· AdjustableLED short-circuit protection threshold
· PWM-independentLED protection
· VOUT over voltage protection (OVP) and reduced voltage protection(SCP) circuit
· Built-in failure indication function
· Built-inISET pin short-circuit protection circuit
