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参数资料
| 型号： | BD1754HFN-TR |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 8-HSON |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 线性 |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-HSON |
| 供应商设备封装： | 8-HSON |
| 包装： | 标准包装 |
| 工作温度： | -30°C ~ 85°C |
| 其它名称： | BD1754HFN-DKR BD1754HFN-DKR-ND BD1754HFNDKR |
Datasheet
Constant Current LED Driver
with 64 Dimming Steps for up to 4 LEDs
BD1754HFN
● General Description
The multi-level brightness control LED works as a
● Key Specification
? Operating power supply voltage range: 2.7V to 5.5V
constant current driver in 64 steps, so that the driving
? Quiescent Current:
0.1 μ A (Typ.)
current can be adjusted finely. BD1754HFN is best
? Operating temperature range: -30°C to +85°C
suited to turn on LEDs that require high-accuracy LED
brightness control.
● Package W(Typ.) x D(Typ.) x H(Max.)
● Features
?
?
Current regulation for LED up to 4 parallels
Adjustable constant current 64 steps
? High accuracy and matching of each current
channel (0.5% Typ.)
? Brightness control via a single-line digital control
interface (Uni-Port Interface Control = UPIC)
● Applications
This driver can be used in various fields such as
HSON8
2.90mm x 3.00mm x 0.60mm
mobile phones, portable game machines and etc.
Figure 1. HSON8
● Typical Application Circuit
Power Supply
L1
L2
L3
L4
VIN
Cin
0.1μF
EN
BD1754HFN
ISET
R ISET
120k ?
GND
Figure 2. Application Circuit
(When ILED-max =32mA)
○ Product structure ： Silicon monolithic integrated circuit
○ This product is not designed protection against radioactive rays
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 14 ? 001
1/16
TSZ02201-0G3G0C200060-1-2
9.NOV.2012 Rev.001
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