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參數(shù)資料
| 型號(hào)： | NSI45030ZT1G |
| 廠商： | ON Semiconductor |
| 文件頁(yè)數(shù)： | 4/7頁(yè) |
| 文件大小： | 164K |
| 描述： | IC CCR/LED DVR 45V 30MA SOT223-4 |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 功能： | * |
| 檢測(cè)方法： | * |
| 精確度： | * |
| 輸入電壓： | * |
| 電流 - 輸出： | * |
| 工作溫度： | * |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | TO-261-4，TO-261AA |
| 供應(yīng)商設(shè)備封裝： | SOT-223 |
| 包裝： | 帶卷 (TR) |
NSI45030ZT1G
http://onsemi.com
4
The CCR is a self biased transistor designed to regulate the
current through itself and any devices in series with it. The
device has a slight negative temperature coefficient, as
shown in Figure 2 Tri Temp. (i.e. if the temperature
increases the current will decrease). This negative
temperature coefficient will protect the LEDS by reducing
the current as temperature rises.
The CCR turns on immediately and is typically at 20% of
regulation with only 0.5 V across it.
The device is capable of handling voltage for short
durations of up to 45 V so long as the die temperature does
not exceed 150癈. The determination will depend on the
thermal pad it is mounted on, the ambient temperature, the
pulse duration, pulse shape and repetition.
Single LED String
The CCR can be placed in series with LEDs as a High Side
or a Low Side Driver. The number of the LEDs can vary
from one to an unlimited number. The designer needs to
calculate the maximum voltage across the CCR by taking the
maximum input voltage less the voltage across the LED
string (Figures 7 and 8).
Figure 7.
Figure 8.
Higher Current LED Strings
Two or more fixed current CCRs can be connected in
parallel. The current through them is additive (Figure 9).
Figure 9.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NSI45035JZT1G | 功能描述:LED照明驅(qū)動(dòng)器 SOT223 EUTECTIC 35MA 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| NSI45060DDT4G | 功能描述:LED照明驅(qū)動(dòng)器 DPAK 60MA 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| NSI45060JDT4G | 功能描述:LED照明驅(qū)動(dòng)器 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| NSI45090DDT4G | 功能描述:LED照明驅(qū)動(dòng)器 DPAK 90MA 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| NSI45090JD | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Adjustable Constant Current Regulator & LED Driver |
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