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Datasheet
6-Channel White LED Driver
for up to 72 LEDs
BD6583MUV-A
● General Description
BD6583MUV-A is white LED driver IC with PWM
● Key Specifications
? Operating power supply voltage range: 2.7V to 22.0V
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
? LED Maximum Current:
? Quiescent Current 1:
Quiescent Current 2:
25mA (Max.)
0.6 μ A (Typ.)
4.6 μ A (Typ.)
? Drive up to 12 in series, 6 strings in parallel =72
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. 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
? External SBD open detect
? Operating temperature range: -30 ℃ to +85 ℃
● Package W(Typ.) x T(Typ.) x H(Max.)
VQFN024V4040
4.00mm x 4.00mm x 1.00mm
Figure 1. Package
? Thermal shutdown
● Applications
All middle size LCD equipments backlight of Notebook
PC, portable DVD player, car navigation systems, etc.
● Typical Application Circuit
Battery
10 μ F
RTR020N05
100m ?
Power
ON/OFF
4.7 μ H
2.2 μ F
SW
SENSP
SENSN
RSTB
FAILSEL VDET
BD6583MUV-A
10LED x 6parallel
PWMPOW
LED1
200Hz
PWMDRV
LED2
PWM
VBAT
LED3
LED4
1 μ F
VREG LED5
GND GND GND GND TEST ISETH ISETL LED6
Figure 2. Figure 2. Typical Application Circuit
24k ?
Typical Application Circuit
Each 20mA
○ 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
1/32
TSZ02201-0G3G0C400180-1-2
03.Dec.2012 Rev.001
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相关代理商/技术参数
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BD6586MUV 制造商:ROHM 制造商全称:Rohm 功能描述:Silicon Monolithic Integrated Circuit
BD6586MUV_11 制造商:ROHM 制造商全称:Rohm 功能描述:White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)
BD6586MUV-E2 功能描述:LED照明驱动器 24 LEDs 2.7-5.5V 24V Max Out 25mA Out RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
BD6590MUV 制造商:ROHM 制造商全称:Rohm 功能描述:White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)
BD6590MUV_11 制造商:ROHM 制造商全称:Rohm 功能描述:White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)
BD6590MUV-E2 制造商:ROHM Semiconductor 功能描述:White backlight LED Driver,106LEDs,40V
BD6592MUV 制造商:ROHM 制造商全称:Rohm 功能描述:Silicon Monolithic Integrated Circuit