bd6581gu ROHM Co. Ltd., bd6581gu Datasheet
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bd6581gu
Manufacturer Part Number
bd6581gu
Description
White Backlight Led Driver
Manufacturer
ROHM Co. Ltd.
Datasheet
1.BD6581GU.pdf
(27 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
bd6581gu-E2
Manufacturer:
ROHM
Quantity:
21 000
Part Number:
bd6581gu-E2
Manufacturer:
ROHM/罗姆
Quantity:
20 000
LED Drivers for LCD Backlights
White Backlight LED Driver
for Medium to Large LCD Panels
(Switching Regulator Type)
●Description
●Features
●Absolute Maximum Ratings
●Recommended Operating Range (Ta=-30℃ ~ +85℃)
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
BD6581GU
Maximum applied voltage 1
Maximum applied voltage 2
Maximum applied voltage 3
Power dissipation 1
Operating temperature range
Storage temperature range
Power supply voltage
(*1) This value is the measurement value that was mounted on the PCB by ROHM.
BD6581GU 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.
BD6581GU 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.
Small package type is suited for saving space.
All middle size LCD equipments backlight of Notebook PC, portable DVD player, car navigation systems, etc.
1) High efficiency PWM step-up DC/DC converter (fsw=1MHz), max efficiency 93%
2) High accuracy & good matching (±1.5%) current drivers 6ch
3) Drive up to 12
4) Wide input voltage range (2.7V ~ 22V)
5) Rich safety functions
6) Small & thin package (VCSP85H2) 2.6×2.6×0.85mm
Temperature deleting: 8.8mW/ ℃ from Ta>25℃
・Over-voltage protection (OVP)
・Over current limit
・External SBD open detect
・Thermal shutdown
Parameter
Parameter
*
in series, 6 strings in parallel =72 white LEDs (
VMAX1
Symbol
VMAX2
VMAX3
Symbol
VBAT
Topr
Tstg
Pd1
Min.
2.7
-55 ~ +150
-30 ~ +85
Ratings
Limits
1100
50.5
12.0
Typ.
25
7
1/26
Max.
22.0
*
Unit
mW
Unit
℃
℃
white LED Vf=3.5Vmax)
V
V
V
V
TEST, VREG, SENSP, SENSN, SW, RSTB,
PWMPOW, PWMDRV, FAILSEL, ISETH, ISETL
LED1, LED2, LED3, LED4, LED5, LED6, VBAT
VDET
Condition
Condition
*1
-
-
2010.03 - Rev.A
No.10040EAT13