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参数资料
| 型号： | MAX6946ATE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 18/24页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 10 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 400kHz |
| 电源电压： | 2.25 V ~ 3.6 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
10-Port, Constant-Current LED Driver and
I/O Expander with PWM Intensity Control
COMMAND BYTE IS STORED ON RECEIPT OF
STOP CONDITION
D15
D14
D13
D12
D11
D10
D9
D8
ACKNOWLEDGE FROM MAX6946/MAX6947
S
SLAVE ADDRESS
0
A
COMMAND BYTE
A
P
Figure 12. Command Byte Received
R/W
ACKNOWLEDGE FROM MAX6946/MAX6947
ACKNOWLEDGE FROM MAX6946/MAX6947
ACKNOWLEDGE FROM MAX6946/MAX6947
HOW COMMAND BYTE AND DATA BYTE MAP INTO
MAX6946/MAX6947s ' REGISTERS
D15 D14 D13 D12 D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ACKNOWLEDGE FROM MAX6946/MAX6947
S
SLAVE ADDRESS
0
A
COMMAND BYTE
A
DATA BYTE
A
P
1
R/W
BYTE
AUTOINCREMENT MEMORY ADDRESS
Figure 13. Command and Single Data Byte Received
ACKNOWLEDGE FROM MAX6946/MAX6947
ACKNOWLEDGE FROM MAX6946/MAX6947
HOW COMMAND BYTE AND DATA BYTE MAP INTO
MAX6946/MAX6947s ' REGISTERS
D15 D14 D13 D12 D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ACKNOWLEDGE FROM MAX6946/MAX6947
S
SLAVE ADDRESS
0
A
COMMAND BYTE
A
DATA BYTE
A
P
N
R/W
BYTES
AUTOINCREMENT MEMORY ADDRESS
Figure 14. n Data Bytes Received
Operation with Multiple Masters
If the MAX6946/MAX6947 operates on a 2-wire inter-
face with multiple masters, a master reading the
MAX6946/MAX6947 should use a repeated start
between the write. This sets the MAX6946/MAX6947
address pointer, and the read(s) that takes the data
from the location(s) (Table 1). This is because it is pos-
sible for master 2 to take over the bus after master 1
has set up the MAX6946/MAX6947s’ address pointer,
then master 1’s delayed read can be from an unexpect-
ed location.
Command Address Autoincrementing
The command address stored in the MAX6946/
MAX6947 increments through the grouped register func-
tions after each data byte is written or read (Table 1).
Applications Information
Port Input and I 2 C Interface-Level
Translation from Higher or
Lower Logic Voltages
The MAX6946/MAX6947s’ I 2 C interface (SDA, SCL) and
I 2 C slave address select input AD0 (MAX6947 only),
PWM clock input OSC (MAX6946 only), and reset input
RST are overvoltage protected to +6V, independent of
V DD . The 10 I/O ports P0–P9 are overvoltage protected
to +8V independent of V DD . This allows the MAX6946/
MAX6947 to operate from one supply voltage, such as
3.3V, while driving the I 2 C interface and/or some of the
10 I/O as inputs from a higher logic level, such as 5V.
18
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6946CAWE+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6946CAWE+T | 功能描述:LED照明驱动器 10-Port Constant Current LED Driver 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 |
| MAX6946EVCMAXQU+ | 功能描述:LED 照明开发工具 MAX6946 Evaluation Kit/Evaluation System RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX6946EVKIT | 功能描述:LED 照明开发工具 10-Port Constant-Current LED Driver and I/O Expander with PWM Intensity Control RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX6946EVKIT+ | 功能描述:LED 照明开发工具 MAX6946 Evaluation Kit/Evaluation System RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
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