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参数资料
| 型号： | BD6586MUV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 17/23页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 24-VQFN |
| 标准包装： | 1 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 700kHz ~ 1.3MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | VQFN024V4040 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1372 (CN2011-ZH PDF) |
| 其它名称： | BD6586MUV-E2DKR |
BD6586MUV
? LED current setting controlled ISET resistor.
19.6k ? : 24.5mA
24k ? : 20mA
30k ? : 16mA
33k ? : 14.5mA
? Brightness control
Please input PWM pulse from EN1, EN2 or PWM terminal.
Please refer electrical function page 7.
For the application of 7V and more
Datasheet
Other Power Supply
6.0Vto25V
Battery
2.7V to 5.5V
4.7 μ F
4.7 μ H
1 μ F
6LED x 4Parallel
2.2 μ F
SW
SW
SW
VBAT
VDET
TRSW
EN2
Power
LED1
ON/OFF
EN1
PWM
LED2
LED3
TESTO
TEST
PGND PGND GND
GND
GND
ISET
LED4
Each 20mA
Can be set up to each 20~50mA
24k ?
Figure 24. 6 series×4 parallel, LED current 20mA setting
Power control PWM application
● Analog Style Optical Application
Control LED current to charged D/A voltage.
Show application example and typ control.
Please decide final value after you evaluated application, characteristic.
Battery
2.7V to 5.5V
D/A
LED current
4.7 μ F
SW
4.7 μ H
SW
SW
2.2 μ F
1 μ F
VBAT
VD ET
6LED x 4Parallel
0.05V
0.2V
0.4V
0.5V
19.4mA
14.4mA
7.7mA
4.4mA
TRSW
0.6V
1.0mA
Power
ON/OFF
EN2
EN1
LED1
LED2
0.7V
0mA
PWM
TESTO
TEST
PGND PGND
GND
GND
GND
ISET
LED3
LED4
Each 20mA
LED current =
I SET voltage
470k ?
+
ISET voltage -D/A
24k ?
×800
470K ?
24k ?
Can be set up to each 10~25mA
typ LED current =
0.6V
470k ?
+
0.6V-D/A
24k ?
×800
D/A
Figure 25. Analog style optical application
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
17/20
TSZ02201-0G3G0C400190-1-2
10.Dec.2012 Rev.001
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| 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) |
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