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参数资料
| 型号： | BD1604MUV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 16-VQFN |
| 标准包装： | 1 |
| 拓扑： | PWM，切换式电容器（充电泵） |
| 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： | 800kHz ~ 1.2MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 供应商设备封装： | VQFN016V3030 |
| 包装： | 标准包装 |
| 工作温度： | -30°C ~ 85°C |
| 产品目录页面： | 1371 (CN2011-ZH PDF) |
| 其它名称： | BD1604MUV-E2DKR |
BD1604MUV, BD1604MVV
● Description of Block Operations
1) LED light control and current control
When LED lights are controlled, H- or L-level voltage is applied to respective control pins.
Current control in the BD1604MUV/MVV can take place via a resistance connected to the ISET pin.
ON/OFF control
Technical Note
SEL2 SEL1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
SEL0
0
1
0
1
0
1
0
1
LED1
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
LED2
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
LED3
OFF
ON
OFF
OFF
ON
ON
ON
OFF
LED4
ON
OFF
OFF
OFF
ON
ON
ON
OFF
Rset: See the following table.
0: 0V, 1: VBAT
When handling pins, the LED pins must be connected to VBAT so long as LED is always OFF.
Current control
Rset 165k ?
97.6k ?
48.7k ?
32.4k ?
24.3k ?
16.2k ?
ILED 3mA 5mA 10mA
15mA
20mA
30mA
The LED current can be changed by the Rset value.
ILED=480/Rset
The above expression can be used for approximation.
2) Low supply voltage detection circuit (UVLO)
When the IC-applied supply voltage drops, all the circuits including the DC/DC converter are stopped. When supply voltage
drops to a detecting voltage, UVLO is activated. When it rises, UVLO is automatically released.
3) Soft start by DC/DC converter startup
When a DC/DC converter is started, soft start is enabled so that output voltage can be increased gradually to prevent output
voltage overshooting.
● Application Parts Selection Method
Capacitor (Use the ceramics parts with good frequency and temperature characteristics.)
Symbol
Recommended value Recommended part
Type
Cout,Cin,C1,C2
1 μ F
GRM188B11A105KA61B(MURATA)
Ceramics capacitor
Resistance
Symbol
Recommended value
Recommended part
Set Current Value
Rset
16k ?
240k ?
MCR006YZPF Series (ROHM)
30mA
2mA
Connect an input bypass capacitor (CIN) between VBAT and GND pin in proximity. In addition, connect an output capacitor
between VOUT and GND pins in proximity. Connect a capacitor between C1P and C1N and also a capacitor between C2P
and C2N in proximity to the chips. Connect a resistance in proximity to the ISET pin.
When other than these parts are used, the equivalent parts must be used.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
6/10
2011.06 - Rev.B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD1604MVV | 制造商:ROHM 制造商全称:Rohm 功能描述:Backlight LED Drivers for Small LCD Panels (Charge Pump Type) |
| BD1604MVV-E2 | 功能描述:LED照明驱动器 Backlight LED Driver for Small Panel 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 |
| BD1606MVV | 制造商:ROHM 制造商全称:Rohm 功能描述:Backlight LED Driver for Small LCD Panels (Charge Pump Type) |
| BD1606MVV_11 | 制造商:ROHM 制造商全称:Rohm 功能描述:Backlight LED Driver for Small LCD Panels (Charge Pump Type) |
| BD1606MVV-E2 | 功能描述:LED照明驱动器 Backlight LED Driver for Small Panel 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 |
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