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| 型号： | CAT4008W-T2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 16-SOIC |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 频率： | 25MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 0.4 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 805 (CN2011-ZH PDF) |
| 其它名称： | CAT4008W-T2DKR |
CAT4008
Table 5. PIN DESCRIPTION
Name
GND
SIN
CLK
LATCH
LED1 ? LED8
BLANK
SOUT
RSET
VDD
Pin Function
Ground
Serial data input pin
Serial clock input pin
Latch serial data to output registers
LED channel 1 to 8 cathode terminals
Enable / disable all channels
Serial data output pin.
LED current set pin
Positive supply Voltage
Function
GND is the ground reference pin for the device. This pin
must be connected to the ground plane on the PCB.
SIN is the serial data input. Data is loaded into the internal
register on each rising edge of CLK.
CLK is the serial clock input. On each rising CLK edge, data
is transferred from SIN to the internal 8 ? bit serial shift
register.
LATCH is the latch data input. On the rising edge of
LATCH, data is loaded from the 8 ? bit serial shift register
into the output register latch. On the falling edge, this data
is latched in the output register and isolated from the state of
the serial shift register.
LED1 – LED8 are the LED current sink channels. These
pins are connected to the LED cathodes. The current sinks
drive the LEDs with a current equal to about 51 times RSET
pin current. For the LED sink to operate correctly, the
voltage on the LED pin must be above 0.4 V.
Current Setting Resistor
Table 6 lists standard resistor values for various LED
current settings.
Table 6. LED CURRENT
AND RSET RESISTOR VALUES
BLANK is the LED channel enable and disable input pin.
When low, LEDs are enabled according to the output latch
register content. When high, all LEDs are off, while
preserving the data in the output latch register.
SOUT is the serial data output of the 8 ? bit serial shift
register. This pin is used to cascade several devices on the
serial bus. The SOUT pin is then connected to the SIN input
of the next device on the serial bus to cascade.
RSET is the LED current setting pin. A resistor is connected
between this pin and ground. Each LED channel current is
set to about 51 times the current pulled out of the pin. The
RSET pin voltage is regulated to 1.2 V.
VDD is the positive supply pin voltage for the entire device.
A small 1 m F ceramic is recommended close to pin.
LED Current [mA]
10
20
30
40
60
80
R SET [k W ]
6.19
3.09
2.05
1.54
1.02
0.768
http://onsemi.com
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相关代理商/技术参数 |
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|---|---|
| CAT4008Y | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT4008Y-GT2 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:8-Channel Constant Current LED Driver |
| CAT4008Y-T2 | 功能描述:LED照明驱动器 LED Driver 8 Chan 4-wire I/F 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 |
| CAT4016 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:16-Channel Constant Current LED Driver |
| CAT4016_08 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:16-Channel Constant Current LED Driver |
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