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参数资料
| 型号： | FAN5646S701X |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 10/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER BLINKER SC70-5 |
| 标准包装： | 1 |
| 系列： | TinyWire™ |
| 恒定电流： | 是 |
| 拓扑： | 线性，高端 |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | LED 闪烁器 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | SC-70-5 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1215 (CN2011-ZH PDF) |
| 其它名称： | FAN5646S701XDKR |
TinyWire ? Digital Interface
TinyWire is a flexible, general-purpose, binary protocol
designed to minimize the number of pins on the IC while
providing a complete digital interface that can be driven from
any microcontroller or applications processor using “bit
ba nging” on a general -purpose I/O pin. The interface’s speed
and flexibility accommodate a wide range of processor clock
capabilities. The fully static nature of the interface requires that
the applications processor dedicate only sufficient
uninterrupted attention to bit banging to complete a single
packet. Interrupted packets are ignored and may be
subsequently retransmitted.
The CONTROL word contains the address of the register that
receives the data, followed by the data to be written. The
CONTROL word is shifted LSB first on the CTRL line, as
shown in Figure 14. The TinyWire protocol operates over a
wide range of t BIT times (see Table 13) , allowing encoding of
the brightness control bit-stream using a microcontroller
software “bit - bang” loop.
The CONTROL word begins with the rising edge of CTRL. If
CTRL is HIGH for a greater percentage of the time than it is
LOW between rising edges, the bit is a 1. Conversely, if CTRL
is LOW longer than it is HIGH, the bit is a 0. Observe the
following timing rules to ensure proper data transmission:
Table 12. Data Bit Definition
Data is written to the selected register at the rising edge of the
STOP bit. A new CONTROL word may start within 4 ? s of the
falling edge of the STOP bit.
As indicated in Table 1, if CTRL remains LOW for at least
t RESET after the falling edge of the STOP bit, the IC reverts to
its IDLE state.
If CTRL remains HIGH for at least t RESET , the IC executes its
programmed commands.
CONTROL Word
The CONTROL word contains the address of the register to
receive the data followed by the data to be written. The
FAN5646 data transfer is an 11-bit word, with the first three
bits (0 through 2) being the register address, LSB first. The
next eight bits (3 through 10) are the data to be written to the
selected register, LSB first. Data is latched into the selected
register at the rising edge of the STOP bit. A new word may
be transferred to the IC as little as 4 ? s after the falling edge of
the STOP bit.
Table 14 shows the CONTROL word structure as well as an
example of writing 23H into register 2 (A[2:0] = 010).
Table 14. Address and Data Word
BIT =
t LOW
t HIGH
BIT
0
1
2
3
4
5
6
7
8
9 10
0
> 75% t BIT
< 25% t BIT
Value
A0 A1 A2 D0 D1 D2 D3 D4 D5 D6 D7
1
< 25% t BIT
> 75% t BIT
Example
0
1
0
1
1
0
0
0
1
0
0
Table 13. Timing Requirements
Minimum
Maximum
t LOW
t HIGH
t RESET
500 ns
500 ns
200 ? s
40 ? s
40 ? s
DATA
LATCHED
t HIGH
LOGIC 0
t BIT
LOGIC 1
t BIT
t LOW
t RESE T
IDLE
BIT 0
BIT 1
BIT N
STOP BIT
Figure 14. TinyWire ? Protocol
? 2009 Fairchild Semiconductor Corporation
FAN5646 ? Rev. 1.0. 3
10
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN5646S701X_11 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Programmable Indicator a??Softa?? LED Blinker with TinyWirea?￠ Single-Wire Interface |
| FAN5646UC00X | 功能描述:LED照明驱动器 Prog. Indicator Soft LED Blinker 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 |
| FAN5646UC00X_11 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Programmable Indicator a??Softa?? LED Blinker with TinyWirea?￠ Single-Wire Interface |
| FAN5646UC01X | 功能描述:LED照明驱动器 Prog. Indicator Soft LED Blinker 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 |
| FAN5646UC01X_11 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Programmable Indicator a??Softa?? LED Blinker with TinyWirea?￠ Single-Wire Interface |
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