Datasheet
6-Channel White LED Driver
for up to 72 LEDs
BD6592MUV
● General Description
BD6592MUV is white LED driver IC with PWM step-up
● Key Specifications
? Operating power supply voltage range: 2.7V to 22.0V
DC/DC converter that can boost max 42.5V and
current driver that can drive max 40mA. The wide and
precision brightness can be controlled by external
PWM pulse. BD6592MUV has very accurate current
? LED maximum current:
? Quiescent Current 1:
Quiescent Current 2:
? Switching Frequency:
40mA (Max.)
0.6 μ A (Typ.)
4.6 μ A (Typ.)
1.0MHz(Typ.)
drivers, and it has few current errors between each
strings. So, it will be helpful to reduce brightness spots
? Operating temperature range: -30 ℃ to +85 ℃
? Drive up to 12 in series, 6 strings in parallel =72
on the LCD. Small package type is suited for saving
space.
● Features
? High efficiency PWM step-up DC/DC converter
(fsw=1MHz), max efficiency 93%
? High accuracy & good matching (±3%) current
drivers 6ch
*
white LEDs ( * white LED Vf=3.5Vmax)
? Rich safety functions
? Over-voltage protection (OVP)
? Over current limit
● Package
W(Typ.) x D (Typ.) x H(Max.)
VQFN024V4040
4.00mm x 4.00mm x 1.00mm
? External SBD open detect
? Thermal shutdown
● Applications
Figure 1.
All middle size LCD equipments backlight of Notebook
PC, portable DVD player, car navigation systems, etc.
● Typical Application Circuit (10 series x 6parallel)
BD6592MUV
Figure 2 Typical Application Circuit
○ Product structure : Silicon monolithic integrated circuit
○ This product is not designed protection against radioactive rays
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 14 ? 001
1/31
TSZ02201-0G3G0C400210-1-2
21.Dec.2012 Rev.001
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