Datasheet

TFBS4711
www.vishay.com
Vishay Semiconductors
Rev. 3.1, 03-Jul-2018
5
Document Number: 82633
For technical questions within your region: [e-mail]
, [e-mail], [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Notes
• Typical values are for design aid only, not guaranteed nor subject to production testing
(1)
Equivalent to IrDA background light and electromagnetic field test: fluorescent lighting immunity
(2)
IrDA sensitivity definition: minimum irradiance E
e
in angular range, power per unit area. The receiver must meet the BER specification while
the source is operating at the minimum intensity in angular range into the minimum half-angular range at the maximum link length
(3)
Maximum irradiance E
e
in angular range, power per unit area. The optical delivered to the detector by a source operating at the maximum
intensity in angular range at minimum link length must not cause receiver overdrive distortion and possible ralated link errors. If placed at
the active output interface reference plane of the transmitter, the receiver must meet its bit error ratio (BER). For more definitions see the
document “Symbols and Terminology” on the Vishay website
(4)
Using an external current limiting resistor is allowed and recommended to reduce IRED intensity and operating current when current
reduction is intended to operate at the IrDA low power conditions. E.g. for V
CC2
= 3.3 V a current limiting resistor of R
S
= 56 Ω will allow a
power minimized operation at IrDA low power conditions
(5)
Due to this wavelength restriction compared to the IrDA spec of 850 nm to 900 nm the transmitter is able to operate as source for the
standard remote control applications with codes as e.g. Phillips RC5/RC6
®
or RECS 80
RECOMMENDED SOLDER PROFILES
Solder Profile for Sn/Pb Soldering
Fig. 1 - Recommended Solder Profile for Sn/Pb Soldering
Lead (Pb)-free, Recommended Solder Profile
The TFBS4711 is a lead (Pb)-free transceiver and qualified
for lead (Pb)-free processing. For lead (Pb)-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 in
figure 2 is Vishay’s recommended profiles for use with the
TFBS4711 transceivers. For more details please refer to the
application note “SMD Assembly Instructions”.
Wave Soldering
For TFDUxxxx and TFBSxxxx transceiver devices wave
soldering is not recommended.
Manual Soldering
Manual soldering is the standard method for lab use.
However, for a production process it cannot be
recommended because the risk of damage is highly
dependent on the experience of the operator. Nevertheless,
we added a chapter to the above mentioned application
note, describing manual soldering and desoldering.
TRANSMITTER
IRED operating current
limitation
No external resistor for current
limitation
(5)
I
D
200 300 430 mA
Forward voltage of built-in IRED I
F
= 300 mA V
f
1.4 1.8 1.9 V
Output leakage IRED current TXD = 0 V, 0 < V
CC1
< 5.5 V I
IRED
-1 0.01 1 μA
Output radiant intensity
V
CC
= 2.7 V, α = 0°, 15°
TXD = high, SD = low
I
e
25 65 370 mW/sr
V
CC1
= 5 V, α = 0°, 15°,
TXD = low or SD = high (receiver is
inactive as long as SD = high)
I
e
--0.04mW/sr
Output radiant intensity, angle
of half intensity
α -± 24- deg
Peak-emission wavelength
(5)
λ
p
880 - 900 nm
Spectral bandwidth Δλ -45-nm
Optical rise time t
ropt
10 50 300 ns
Optical fall time t
fopt
10 50 300 ns
Optical output pulse duration
Input pulse width 1.6 < t
TXD
< 23 μs t
opt
t
TXD
- 0.15 - t
TXD
+ 0.15 μs
Input pulse width t
TXD
≥ 23 μs t
opt
23 50 100 μs
Optical overshoot --25%
OPTOELECTRONIC CHARACTERISTICS (T
amb
= 25 °C, V
CC1
= V
CC2
= 2.4 V to 5.5 V unless otherwise noted)
PARAMETER TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
0
20
40
60
80
100
120
140
160
180
200
220
240
260
0 50 100 150 200 250 300 350
Time (s)
Temperature (°C)
2 °C/s to 4 °C/s
2 °C/s to 4 °C/s
10 s max. at 230 °C
120 s to 180 s
160 °C max.
240 °C max.
90 s max.
19431