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参数资料
| 型号： | CAT3636HV3-GT2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/14页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR 6CH QUAD MODE 16TQFN |
| 标准包装： | 2,000 |
| 系列： | QUAD-Mode® |
| 拓扑： | 线性（LDO），切换式电容器（充电泵） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 600kHz ~ 1.4MHz |
| 电源电压： | 2.5 V ~ 5.5 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 ~ 85°C |
CAT3636
Block Diagram
C 1 ?
C 1+
C 2 ?
C 2+
V IN
1x mode (LDO)
1.33x, 1.5x, 2x Charge Pump
Mode Control
V OUT
EN/SET
100 k W
0.8, 1.1 MHz
Oscillator
LEDA1
LEDA2
LEDB1
LEDB2
LEDC1
Serial
Interface
Registers
Reference
Voltage
Current
Setting DAC
LEDC2
6 Current
Sink Regulators
GND
Figure 20. 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 where
the regulated currents cannot be maintained, the device
automatically switches into 1.33x mode (after a fixed delay
time of about 400 m 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
device will automatically switch to the 1.5x boost mode
(after a fixed delay time of about 400 m 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
where the regulated currents cannot be maintained, the
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT3636HV3T | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV3-T2 | 功能描述:LED照明驱动器 6-Channel Quad-Mode 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 |
| CAT3637 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:6-Channel Programmable High Efficiency Quad-Mode⑩ LED Driver |
| CAT3637AEVB | 功能描述:电源管理IC开发工具 EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| CAT3637HV3-GT2 | 功能描述:LED照明驱动器 Hi Eff Quad Mode 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 |
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