- 您現在的位置：買賣IC網 > PDF目錄369655 > CAT3626HS4-T2 6-Channel LED Driver with I2C Interface PDF資料下載
參數資料
| 型號： | CAT3626HS4-T2 |
| 英文描述： | 6-Channel LED Driver with I2C Interface |
| 中文描述： | 6通道LED驅動器，帶有I2C接口 |
| 文件頁數： | 9/14頁 |
| 文件大?。?/td> | 807K |
| 代理商： | CAT3626HS4-T2 |
CAT3626
2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9
Doc. No. 5014 Rev. A
BLOCK DIAGRAM
Figure 2. CAT3626 Functional Block Diagram
BASIC
OPERATION
At power-up, the CAT3626 starts operating in 1x
mode where the output will be approximately equal to
the input supply voltage (less any internal voltage
losses). If the output voltage is sufficient to regulate all
LEDs currents the device remains in 1x operating
mode.
If the input voltage is insufficient or falls to a level
where the regulated currents cannot be maintained,
the device automatically switches (after a fixed time of
400μs) into 1.5x mode.
In 1.5x mode, the output is approximately equal to 1.5
times the input supply voltage (less any internal
voltage losses).
The above sequence is repeated each and every time
the chip is either powered-up or taken out of shutdown
(via EN pin), or the RegEn register is accessed by
write cycle.
LED CURRENT SETTING
The LED current setting is programmed via the I
2
C
serial interface and is stored in four
8-bit registers RegA, RegB, RegC and RegEn as
follows:
RegA stores the LED current for group A
(LEDA1 and LEDA2 channels),
RegB stores the LED current for group B
(LEDB1 and LEDB2 channels),
RegC stores the LED current for group C
(LEDC1 and LEDC2 channels),
RegEn selects the on/off state of each of the
6 LED channels.
At each write access to RegEn, the driver
automatically reconfigures to the mode (1x or 1.5x)
that provides the highest efficiency.
相關PDF資料 |
PDF描述 |
|---|---|
| CAT3626HV4-T2 | 6-Channel LED Driver with I2C Interface |
| CAT3636_07 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV3-T2 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV32 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT3626HV4 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT3626HV4G | 制造商:Catalyst Semiconductor 功能描述: |
| CAT3626HV4-GT2 | 功能描述:LED照明驅動器 LED DR CH PUMP 6 CH I2C RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3626HV4-GT3 | 功能描述:LED照明驅動器 LED Driver,Char pump,6 ch I2C I/F RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3626HV4-T2 | 功能描述:LED照明驅動器 6-Ch LED Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
發(fā)布緊急采購，3分鐘左右您將得到回復。