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参数资料
| 型号： | BD6583MUV-AE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 18/35页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER WHIT BCKLGT 24VQFN |
| 标准包装： | 1 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 800kHz ~ 1.2MHz |
| 电源电压： | 2.7 V ~ 22 V |
| 输出电压： | 43V |
| 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： | -30°C ~ 85°C |
| 产品目录页面： | 1372 (CN2011-ZH PDF) |
| 其它名称： | BD6583MUV-ADKR BD6583MUV-ADKR-ND BD6583MUV-AE2DKR |
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BD6583MUV-A
Datasheet
● Start to use PWMDRV terminal for the PWM control, PWM operating
After RSTB and PWMPOW is changing L ? H, input PWM to PWMDRV terminal.
There is no constraint in turn of RSTB and PWMPOW.
When resistance is set as ISET, after RSTB and PWMPOW is changing L ? H as follows Figure 39, when it is not input
PWM to PWMDRV pin but input L, boost of DC/DC is unstable state because current driver doesn’t pass current.
The starting current is pulled from each LED terminal and pressure up operating is stabilized to escape from this state.
Also, the starting current can be set up by the resistance value connected to the ISETL terminal.
After starting, as the starting current in PWM brightness control become useless, the starting current is set up 0mA at the
second rise time of PWMDRV automatically as follows Figure 39.
In case of lighting ? light off ? lighting, when it turns off the lights with PWM=L and It starts without soft start because of
soft
start period was end when it sets PWM modulated light again.
But the peak current of the coil changes owing to discharge of output capacitor, It may flow to the over current limit value,
as follows Figure 40. Because soft start can be used when it turns off the lights with RSTB=L, The peak current of the coil
can be suppressed, as follows Figure 41 and this process of light off is recommended.
RSTB
PWMPOW
L
H
L
H
L
H
L
PWMDRV
Output voltage
LED pin
ON
OFF
ON
O F F
Current driver of
starting current
Figure 39. Off timing of starting current at PWMDRV=L
RSTB
PWMPOW
PWMDRV
Output Voltage
Current coil
Figure 40. Light off control of PWMDRV pin at PWM control on PWM=L
RSTB
PWMPOW
PWMDRV
Output Voltage
Current coil
Figure 41. Light off control of PWMDRV pin at PWM control on RSTB=L
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
18/32
TSZ02201-0G3G0C400180-1-2
03.Dec.2012 Rev.001
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD6583MUV-E2 | 功能描述:LED照明驱动器 72 LEDs 2.7-22V 43V 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 |
| 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) |
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