Rohm Productdetail
6-Channel White LED Driver for up to 72 LEDs - BD6583MUV-A
BD6583MUV-A is white LED driver IC with PWM step-up DC/DC converter that can boost max 42.5V and current driver that can drive max 25mA. The wide and precision brightness can be controlled by external PWM pulse. BD6583MUV-A has very accurate current drivers, and it has few current errors between each strings. So, it will be helpful to reduce brightness spots on the LCD.
Specifications:
Topology
Boost
Number of Outputs
6
Vin(Min.)[V]
2.7
Vin(Max.)[V]
22.0
Output Current(Max.)[mA]
150.0
Per Channel Drive(Max.)[mA]
25.0
Vout(Max.)[V]
42.5
Frequency(Max.)[MHz]
1.0
LED Configuration
6 x 12
LDO
No
Auto Luminous Control
No
Synchronous
No
Integrated FET
No
Dimming
PWM
Peak Efficiency[%]
93
Iq(Typ.)[mA]
3.4
Ishutdown(Typ.)[µA]
0.6
Operating Temperature (Min.)[°C]
-30
Operating Temperature (Max.)[°C]
85
Features:
・High efficiency PWM step-up DC/DC converter (fsw=1MHz)・Maximum efficiency 93%
・High accuracy & good matching (±3%) current drivers 6ch
・Drive up to 12 LEDs in series, 6 strings in parallel =72 white LEDs
・Wide input voltage range (2.7V to 22V)
・Over-voltage protection (OVP)
・Over current limit
・External SBD open detect
・Thermal shutdown (TSD)