参数资料
| 型号： | APGRD004 |
| 厂商： | Microchip Technology |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | REF DESIGN MOD AUTO AMBNT LIGHT |
| 产品培训模块： | Microchip MCP20xx LIN Transceiver Overview |
| 标准包装： | 1 |
| 主要目的： | 照明，RGB LED 控制器 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | MCP2021，PIC12F615 |
| 主要属性： | 4 Tiny 板，每个板带：RGB LED，LIN 收发器，稳压器，MCU |
| 次要属性： | 对 LIN 指令加以解释，以控制 16,383 种颜色和 1,023 种调光级 |
| 已供物品： | 4 个板，CD |
| 产品目录页面： | 659 (CN2011-ZH PDF) |
| 相关产品： | PIC12F615-I/MF-ND - IC PIC MCU FLASH 1KX14 8DFN PIC12F615T-I/MF-ND - IC PIC MCU FLASH 1KX14 8DFN PIC12F615-E/MF-ND - IC PIC MCU FLASH 1KX14 8DFN MCP2021T-500E/SNTR-ND - IC LIN TXRX ON-BOARD VREG 8SOIC MCP2021T-500E/MDTR-ND - IC LIN TXRX ON-BOARD VREG 8DFN MCP2021T-330E/SNTR-ND - IC LIN TXRX ON-BOARD VREG 8SOIC MCP2021T-330E/MD-ND - IC LIN TXRX ON-BOARD VREG 8DFN MCP2021-500E/SN-ND - IC LIN TXRX ON-BOARD VREG 8SOIC MCP2021-500E/P-ND - IC LIN TXRX ON-BOARD VREG 8DIP MCP2021-500E/MD-ND - IC LIN TXRX ON-BOARD VREG 8DFN 更多... |
LED Lighting Solutions
Temperature Sensing Solutions for
Power LED Applications
Logic Output Temperature Sensors
Low cost temperature
Every light source has a specific energy efficiency. A certain
portion of the energy supplied to it is wasted in the form of
heat. One of the fundamental differences between Power
LED technology and other traditional sources of light is in
the way this heat is transferred. In fact, LEDs are particularly
good at producing a radiation with very narrow range of
GND
TC6501
TC6502
GND
T OVER TC6501
T OVER TC6502
sensing devices such
as the TC6501 and
TC6502 (offered in
SOT-23 packages) can be
conveniently placed near
power LED(s) to obtain a
frequencies typically designed to produce a specific color
HYST
V CC
more accurate temperature
in the visible spectrum. There is very little infrared (heat)
radiation produced. All the heat produced by the light
source has to be transferred instead by contact. Packaging
technology plays an important role in facilitating the heat
transfer from the LED, but an accurate thermal analysis
of the entire lighting application (total thermal resistance
from junction to ambient) is required to guarantee that
the maximum temperature of the junction is not exceeded
monitoring and provide a
logic output fault signal.
The fault signal will be activated as soon as a factory-
programmed temperature threshold is reached. Temperature
threshold values can be selected in increments of 20°C as
indicated in the following table.
TC6501/TC6502 Logic Output Temperature Sensors
during operation. In particular, white LEDs employ phosphor
materials to convert the monochromatic light emitted into a
wider spectrum, to produce a “white” color. The phosphors
are even more sensitive to temperature and can be easily
damaged if overheated.
Before the LED junction reaches the maximum operating
junction temperature (typically 125°C) the temperature
increase will have negative impact on a number of LED
characteristics including efficiency, light intensity, lifetime
and color.
While the safe way to design a power LED application is to
provide a low temperature resistance path to a heat sink
Device
TC6501P045VCT
TC6501P065VCT
TC6501P075VCT
TC6501P095VCT
TC6501P0105VCT
TC6501P0115VCT
TC6501P0120VCT
TC6501P0125VCT
Temperature
Threshold (°C)
45
65
75
95
105
115
120
125
that is dimensioned for the worst possible environmental
and usage conditions, this might not always be possible
for physical or cost constraints. For this reason driver
ICs used in LED applications (such as the MCP1630 and
MCP1650) often incorporate an over-temperature protection,
performing what is substantially a device shutdown when
the temperature rises above a given threshold. While this is
effective to protect the device from reaching temperatures
that could damage the LED (or the phosphor layer for white
LED applications), the driver IC is not always guaranteed
to be placed close to the emitting device(s). If the LEDs
are arranged in modules, separate from the driving circuit,
comprising several emitters connected in series or parallel,
the temperature sensed by the driver could be considerably
different from the actual module emitter’s junctions.
Resistor-Programmable Temperature Switches
The MCP9509/10 devices are programmable logic output
temperature switches. The temperature switch threshold can
be programmed with a single external resistor, which provides
high design flexibility and simplicity. In addition, this family
of devices provide user programmable features such as 2°C
and 10°C (typical) switch hysteresis and output structure
configuration. The MCP9509 provides an open drain output,
whereas the MCP9510 is offered in three different user
selectable output configurations: Active-low/Active-high
push pull and Active-Low Open-Drain output with an internal
100?kΩ pull-up resistor.
The MCP9509/10 operate from 2.7V to 5.5V. This family is
capable of triggering for temperatures -40°C to +125°C with
high accuracy.
MCP9509/10 Resistor-Programmable
Temperature Switches
Device
MCP9509CT-E/OT
MCP9509HT-E/OT
MCP9510CT-E/CH
MCP9510HT-E/CH
Temperature Threshold (°C)
-40oC to +125oC (Falling Hot to Cold)
-40oC to +125oC (Rising Cold to Hot)
-40oC to +125oC (Falling Hot to Cold)
-40oC to +125oC (Rising Cold to Hot)
www.microchip.com/lighting
LED Lighting Solutions Design Guide
17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| APGSABA | 制造商:OMRON AUTOMATION AND SAFETY 功能描述:CUSTOM SHUTTER ASSEMBLY 制造商:OMRON Industrial Automation 功能描述:CUSTOM SHUTTER ASSEMBLY |
| APG-SA-BA | 制造商:OMRON AUTOMATION AND SAFETY 功能描述:CUSTOM SHUTTER ASSEMBLY 制造商:OMRON Industrial Automation 功能描述:CUSTOM SHUTTER ASSEMBLY 制造商:Omron Corporation 功能描述:Custom Shutter Assembly 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:Custom Shutter Assembly |
| AP-GT1-1P-2428/1.6C(90) | 制造商:Hirose 功能描述:AP-GT1-1P-2428/1.6C(90) |
| APGT1-1P-2428/1.6C(91 | 制造商:Hirose 功能描述:APGT1-1P-2428/1.6C(91 |
| APGT1-1P-2428/1.6C-WS(61) | 制造商:Hirose 功能描述:APGT1-1P-2428/1.6C-WS(61) |
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