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TP1550 Datasheet(PDF) 9 Page - Billiton Ltd.

Part # TP1550
Description  High Accuracy ContaInment / Constant Flow Control
PDF  13 Pages
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Manufacturer  ASIC [Billiton Ltd.]
Direct Link  http://www.tp-asic.com/
Logo ASIC - Billiton Ltd.

TP1550 Datasheet(HTML) 9 Page - Billiton Ltd.

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南京拓品微电子有限公司
NanJing Top Power ASIC Corp.
Rev1.1
（3）恒流/限压方案 1：驱动单颗 LED 方案，以驱动 500mA 负载为例
100
100
200
500
O
O
mV
mV
R
m
ImA
===
Ω
原理图以及元器件清单如下：
图
10 恒流驱动单颗 LED 原理图
元器件清单：
器件名称
规格
器件名称
规格
D1-D4
Diode,Rectifier,1N4007
C1，C2
E-Cap,4.7μF/400V
D5
Diode,Fast,FR107,1A/1000V
C3
E-Cap,10μF/25V
D6
Diode,Fast,FR107,1A/1000V
C4
Capacitor,Ceramic,1nF/1KV
D7
Diode,Schottky,SR1045,10A/45V
C5
Capacitor,Ceramic,0.22uF/25V
R1
Resistor,2M,1/4W,
± 5%
C6
Capacitor,Ceramic,222pF/100V
R2
Resistor,270K,1/2W,
± 5%
C7
E-Cap,680μF/10V*2,Low ESR
R3
Resistor,47R,1/8W,
± 5%
C8
E-Cap,220μF/10V,Low ESR
R4
Resistor,2K,1/8W,
± 5%
L1
Inductor, Color Ring,1.5mH
RcsA
Resistor,3R,1/4W,
± 1%
IC
TP1001，TP1550，光耦 817
RcsB
Resistor,2.2R,1/4W,
± 1%
Q1
NPN,13003,TO-126
Ro
Resistor,0.2R,1/2W,
± 1%
D8
LED
T
Transformer EE19, LM=1.5mH
Np:Ns:NAUX=120T:8T:9T



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