- 您现在的位置：买卖IC网 > Datasheet目录345 > NCP1840Q8A6MNTWG (ON Semiconductor)IC LED DRIVER 12CH PROGR 20QFN Datasheet资料下载
参数资料
| 型号： | NCP1840Q8A6MNTWG |
| 厂商： | ON Semiconductor |
| 文件页数： | 17/19页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER 12CH PROGR 20QFN |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 切换式电容器（充电泵），PWM |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，通用 |
| 频率： | 400kHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 4.1V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
NCP1840
Step 6. Read back the LED1 PWM Register value.
6.1 Set the part address to 1B (hex).
6.2 Set the Read/Write bit to 0.
6.3 Set the Controls Bits to 001 in order to perform a Read operation.
6.4 Set the Register Address to 08 (hex) in order to read LED1 PWM Register.
6.5 Issue another Start and set the part address to 1B (hex).
6.6 Set the Read/Write bit to 1.
Note: After this step, the NCP1840 will transmit the LED1 PWM Register data byte which should be 20 (hex).
Part Ad-
Control Register
Register
Start
dress
R/W
Ack
Bits
Address Ack Start
Part Address
R/W
Ack
Data
Ack
Stop
S
0011011
0
A
001
01000
A
S
0011011
1
A
Data Out
notA
P
LAYOUT CONSIDERATIONS
Some key layout guidelines are as follows:
1. The NCP1840 requires a low ? inductance ground.
2. Connect Pin 6 and Pin 15 to the “ground pad” of the NCP1840’s package ? see Figure 15.
3. Place vias on the “ground pad,” connecting the GND of the NCP1840 directly to the PCB ground plane ? see
Figure 15.
Figure 15. Ground Connection Recommendation
http://onsemi.com
17
相关PDF资料 |
PDF描述 |
|---|---|
| NCP1910GEVB | BOARD DEMO NCP1910DEMO-B-TLS |
| NCP3418BMNR2G | IC MOSFET DRIVER DUAL 12V 10-DFN |
| NCP3418DR2 | IC MOSFET DRIVER DUAL 12V 8-SOIC |
| NCP3420DR2G | IC MOSFET DRIVER DUAL 12V 8-SOIC |
| NCP3488DR2G | IC MOSFET DRVR DUAL 12V 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1850FCCT1G | 制造商:ON Semiconductor 功能描述:1.5A SWITCHING BATTERY CH - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL - 1.5A SWITCHING BATTERY CH |
| NCP1851AFCCT1G | 制造商:ON Semiconductor 功能描述:1.8A SWITCHING BATTERY CH - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / 1.8A SWITCHING BATTERY CH 制造商:ON Semiconductor 功能描述:LINEAR IC |
| NCP1851FCCT1G | 功能描述:电池充电器 RoHS:否 制造商:Power-Sonic 化学性质:Sealed Lead Acid 输出电压:12 V 输出电流:500 mA 端接类型:Screw |
| NCP1852FCCT1G | 制造商:ON Semiconductor 功能描述:BATTERY CHARGER - Tape and Reel |
| NCP18WB333E03RB | 制造商:Murata Manufacturing Co Ltd 功能描述:LEADED NTC THERMISTOR |
发布紧急采购，3分钟左右您将得到回复。