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參數(shù)資料
| 型號： | CAT3636_07 |
| 英文描述： | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| 中文描述： | 6聲道四ModeTM分數(shù)的LED驅(qū)動器在TQFN3x3 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 404K |
| 代理商： | CAT3636_07 |
CAT3636
Doc. No. 5020 Rev. C
8
2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
BLOCK DIAGRAM
Mode Control
0.8, 1.1MHz
Oscillator
Current
Setting DAC
Serial
Interface
Registers
Referece
Voltage
1x mode (LDO)
1.33x, 1.5x, 2x Charge Pump
V
IN
C
1-
C
2-
C
1+
C
2+
V
OUT
EN/SET
100k
GND
LEDA1
LEDA2
LEDB1
LEDB2
6 Current
Sink Regulators
LEDC1
LEDC2
Figure 2. CAT3636 Functional Block Diagram
BASIC OPERATION
At power-up, the CAT3636 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
LED currents, the device remains in 1x operating
mode.
If the input voltage is insufficient or falls to a level
wher e the regulated currents cannot be maintained,
the device automatically switches into 1.33x mode
(after a fixed delay time of about 400
μ
s). In 1.33x
mode, the output voltage is approximately equal to
1.33 times the input supply voltage (less any internal
voltage losses).
If the input voltage is insufficient again or falls to a
level where the regulated currents cannot be
maintained, the device will automatically switch to the
1.5x boost mode (after a fixed delay time of about
400
μ
s). In 1.5x mode, the output is approximately
equal to 1.5 times the input supply voltage (less any
internal voltage losses).
If the input voltage fails more or is still insufficient to
drive the LEDs, it will automatically switch again into
2x mode where the output is approximately equal to 2
times the input supply voltage (less any internal
voltage losses).
If the device detects a sufficient input voltage is
present to drive all LED currents in 1x mode, it will
change automatically back to 1x mode. This only
applies for changing back to the 1x mode
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| 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 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT3636HV3 | 制造商:ON Semiconductor 功能描述:IC 6-LED DRIVER QUAD HI EFFICIENCY |
| CAT3636HV32 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV3-GT2 | 功能描述:LED照明驅(qū)動器 LED Driver,Quad mode,6 ch 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 |
| CAT3636HV3T | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV3-T2 | 功能描述:LED照明驅(qū)動器 6-Channel Quad-Mode 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 |
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