收藏本站
BD6142AMUV
Datasheet
● Operating of the application deficiency
1)When 1 LED or 1string OPEN during the operating
The LED string which became OPEN isn't lighting, but other LED strings are lighting.
Then LED terminal is 0VOUTput boosts up to the over voltage protection voltage. When over voltage is detected, the
feedback of open string isn’t returned, so that VOUT will return normal voltage.
ENABLE, PWM
VOUT
OVP
CH1 connection connect
CH2 connection
open
connect
CH 1
CH 2
CH1 voltage
CH1 enable
100 μ s
Feedback
CH1
CH2
OFF
CH1
CH1 current 20mA
0mA
CH2 current
20mA
0mA
Figure 18. LED open protect
2)When LED short-circuited in the plural
All LED strings is turned on unless CH1 to 8 terminal voltage is more than 5V(typ.).
When it was more than 5V only the strings which short-circuited is turned off normally and LED current of
other lines continue to turn on. Short line(CH1) current is changed from 20mA to 0.05mA(typ.), so CH1 terminal don’t heat.
LED short
Typ 5V
CH1terminal
CH2 terminal
VOUT
0.8V
CH1>C
0.8V
CH 1
FeedBack
CH1
CH2
100 μ s(typ.)
CH 2
CH1 current
CH2 current
20mA
20mA
0.05mA(typ.)
Figure 19. LED short protect
3)When Schottky diode remove
All LED strings aren’t turned on. Also, IC and a switching transistor aren't destroyed because boost operating stops by the
Schottky diode open protected function.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
12/30
TSZ02201-0G3G0C400340-1-2
03.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
BD6581GU-E2 IC LED DVR WHT BCKLGHT VCSP85H2
BD6583MUV-AE2 IC LED DRIVER WHIT BCKLGT 24VQFN
BD6586MUV-E2 IC LED DRVR WHITE BCKLGT 24-VQFN
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
相关代理商/技术参数
BD615 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:PNP SILICON EPIBASE TRANSISTORS
BD6150CS 制造商:PANJIT 制造商全称:Pan Jit International Inc. 功能描述:SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS
BD6150CT 制造商:PANJIT 制造商全称:Pan Jit International Inc. 功能描述:SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS
BD6150MUV 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)
BD6150MUV_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)
BD6150MUV-E2 制造商:ROHM Semiconductor 功能描述:CONV DC-DC SINGLE STEP UP 4.2V TO 26V 24-PIN VQFN EP T/R - Tape and Reel 制造商:ROHM Semiconductor 功能描述:IC WHITE LED DVR BKLT 24-VQFN 制造商:ROHM Semiconductor 功能描述:CONV DCDC SNGL STPDN 2V-26V 24PIN 制造商:ROHM Semiconductor 功能描述:White Backlight LED Driver,106 LED,30mA
BD6155FVM 制造商:ROHM 制造商全称:Rohm 功能描述:DC/DC converter for LCD back light
BD6155FVM-E2 功能描述:IC LED DRIVR WHITE BCKLGT 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND