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參數(shù)資料
| 型號： | TFDU4202-TR3 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Integrated Low Profile Transceiver Module for Telecom Applications - IrDA Standard |
| 中文描述： | 集成的收發(fā)器模塊超薄電信應(yīng)用-紅外標(biāo)準(zhǔn) |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 214K |
| 代理商： | TFDU4202-TR3 |
TFDU4202
Vishay Semiconductors
Document Number 82541
Rev. 1.8, 05-Dec-05
www.vishay.com
7
Temperature Derating Diagram
The temperature derating diagram shows the maxi-
mum operating temperature when the device is oper-
ated without external current limiting resistor. A power
dissipating resistor of 2
Ω
is recommended from the
cathode of the IRED to Ground for supply voltages
above 4 V. In that case the device can be operated up
to 85 °C, too.
Recommended Solder Profile
Solder Profile for Sn/Pb soldering
Lead-Free, Recommended Solder Profile
The TFDU4202 is a lead-free transceiver and quali-
fied for lead-free processing. For lead-free solder
paste like Sn-(3.0 - 4.0)Ag-(0.5 - 0.9)Cu, there are two
standard reflow profiles: Ramp-Soak-Spike (RSS)
and Ramp-To-Spike (RTS). The Ramp-Soak-Spike
profile was developed primarily for reflow ovens
heated by infrared radiation. With widespread use of
forced convection reflow ovens the Ramp-To-Spike
profile is used increasingly. Shown below in figure 2 is
Vishay’s recommended profile for use with the
TFDU4202 transceivers. For more details please
refer to Application note: SMD Assembly Instruction.
Figure 1. Temperature Derating Diagram
50
55
60
65
70
75
8
0
8
5
90
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Operating
V
oltage [
V
] at d
u
ty cycle 20
%
A
b
i
u
r
1
8
097
Figure 2. Recommended Solder Profile for Sn/Pb soldering
19431_1
0
20
40
60
8
0
100
120
140
160
1
8
0
200
220
240
260
0
50
100
150
200
250
300
350
Time/s
T
2...4 °C/s
2...4 °C/s
10 s max. at 230 °C
120 s...1
8
0 s
160 °C max.
240 °C max.
90 s max.
Figure 3. Solder Profile, RSS Recommendation
0
25
50
75
100
125
150
175
200
225
250
275
0
50
100
150
200
250
300
350
Time/s
T
u
r
30 s max.
2 °C...3 °C/s
2 °C...4 °C/s
90 s...120 s
T
≥
217 °C for 70 s max
T
peak
= 260 °C
70 s max.
T
≥
255 °C for 10 s....30 s
19260
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