收藏本站
BD6586MUV
Datasheet
● Block Diagram
Current
SENSE
Pin number 24pin
Figure 4. Block diagram
● Description of Functions
1) PWM current mode DC/DC converter
While BD6586MUV is power ON, the lowest voltage of LED1, 2, 3, 4 is detected, PWM duty is decided to be 0.5V
and output voltage is kept invariably. As for the inputs of the PWM comparator as the feature of the PWM current mode,
one is overlapped with error components from the error amplifier, and the other is overlapped with a current sense signal
that controls the inductor current into Slope waveform to prevent sub harmonic oscillation. This output controls internal
Nch Tr via the RS latch. In the period where internal Nch Tr gate is ON, energy is accumulated in the external inductor,
and in the period where internal Nch Tr gate is OFF, energy is transferred to the output capacitor via external SBD.
BD6586MUV has many safety functions, and their detection signals stop switching operation at once.
2) Soft start
BD6586MUV has soft start function.
The soft start function prevents large coil current.
Rush current at turning on is prevented by the soft start function.
After EN1, EN2 are changed L ? H, soft start becomes effective for within 1ms and soft start doesn't become effective
even if EN1, EN2 are changed L ? H after that.
And, when the H section of PWM is within 1ms, soft start becomes invalid when PWM is input to H more than three times.
The invalid of the soft start can be canceled by making EN1, EN2, PWM ? L.
And, a soft start function doesn't work after a protection function release.
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
4/20
TSZ02201-0G3G0C400190-1-2
10.Dec.2012 Rev.001
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
BD6592MUV-E2 IC LED DRVR WHITE BCKLGT 24-VQFN
BD7844AEFV-E2 IC LED DISPLAY DVR 5V 28-HTSSOP
BD8105FV-E2 IC LED DVR SERIAL PAR 20-SSOP
BD8112EFV-ME2 IC LED DRIVER 24-VSSOP
BD8119FM-ME2 IC WHITE LED DVR PWM 28-HSOP
BD82103GWL-E2 IC LED DRVR WHITE BCKLGT 11-UCSP
BD9206EFV-E2 IC LED DRIVER 6V LCD 20HTSSOP
BD9207FPS-E2 IC LED DVR STEPDWN 1.5A TO252S-5
相关代理商/技术参数
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
BD6592MUV_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)
BD6592MUV-E2 功能描述:LED照明驱动器 72 LEDs 2.7-22V 43V Max Out 40mA 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
BD65B60GWL-E2 功能描述:LED 驱动器 IC 2 输出 DC DC 稳压器 升压（升压） PWM 调光 25mA UCSP50L1 制造商:rohm semiconductor 系列:- 包装:剪切带（CT） 零件状态:有效 类型:DC DC 稳压器 拓扑:升压（升压） 内部开关:是 输出数:2 电压 - 供电（最低）:2.7V 电压 -?供电（最高）:5.5V 电压 - 输出:28.5V 电流 - 输出/通道:25mA 频率:600kHz ~ 1.1MHz 调光:PWM 应用:背光 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:12-UFBGA，CSPBGA 供应商器件封装:UCSP50L1 标准包装:1
BD65D00MUV-E2 功能描述:LED 驱动器 IC 4 输出 DC DC 稳压器 升压（升压） 模拟，PWM 调光 100mA VQFN028V5050 制造商:rohm semiconductor 系列:- 包装:剪切带（CT） 零件状态:有效 类型:DC DC 稳压器 拓扑:升压（升压） 内部开关:是 输出数:4 电压 - 供电（最低）:4.5V 电压 -?供电（最高）:27V 电压 - 输出:41V 电流 - 输出/通道:100mA 频率:1.25MHz 调光:模拟，PWM 应用:背光 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:28-VFQFN 裸露焊盘 供应商器件封装:VQFN028V5050 标准包装:1