BD65D00MUV Datasheet, PDF (1/40 Pages) Rohm – 4-Channel White LED Driver

Datasheet
4-Channel White LED Driver
with Integrated FET for up to 40 LEDs
BD65D00MUV
˔General Description
This IC is white LED driver IC with PWM step-up
DC/DC converter that can boost max 41V and current
driver that can drive max 100mA. The wide and
precision brightness can be controlled by external
PWM pulse. This IC 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
panel. Small package is suited for saving space.
It can respond to the application according to the
application to be abele to switch to external/internal
NchFET boosting.

PWM dimming(100Hz - 25kHz)Analog
Brightness Control
˔Key Specifications
 Operating power supply voltage range: 6V to 27V
 LED maximum current:
100mA/ch
 Quiescent Current:
1.6μA (typ.)
 Operating temperature range:
-40ˆ to +85ˆ
˔Package ç ç ç ç ç ç W(typ.) x D(typ.) x H(Max.)
˔Features
 High efficiency PWM step-up DC/DC converter
(fsw=typ 1.25MHz, 0.60MHz to 1.6MHz)
 High accuracy & good matching current drivers
4ch (MAX100mA/ch)
 Integrated 50V power Nch MOSFET
 Soft Start function
 Drive up to 10 LEDs in series,
4 strings in parallel
 Various safety functions
● Over-voltage protection
● External SBD open detect / Output
Short protection
● Over current limit
● CH Terminal open / GND short protect
● CH over voltage protect / LED short protect
● Thermal shutdown
● UVLO
● ISET short protection
˔Typical Application Circuit (4 parallel)
6V to 27V
VQFN028V5050
5.00mm x 5.00mm x 1.00mm
Figure 1.
˔Applications
All LCD equipments, Backlight of Notebook PC,
Amusement, net book, monitor, TV, Portable DVD
player, light source etc.
Figure 2. Typical Application Circuit
˓Product structureɿSilicon monolithic integrated circuitç ˓This product is not designed protection against radioactive rays
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