HFBR-1515B Avago Technologies US Inc., HFBR-1515B Datasheet - Page 5

• Manufacturer Part Number: HFBR-1515B
• Description: XMITTER FIBER OPTIC PROFIBUS ST
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-1515B

• Wavelength: 650nm
• Spectral Bandwidth: 21nm
• Voltage - Forward (vf) Typ: 2.1V
• Current - Dc Forward (if): 60mA
• Voltage - Dc Reverse (vr) (max): 3V
• Capacitance: 60pF
• Connector Type: ST
• Function: Fiber Optic Transmitter for PROFBUS, ST Port
• Product: Transmitter
• Data Rate: 10 MBd
• Diode Capacitance: 60 pF
• Maximum Rise Time: 13 ns
• Maximum Fall Time: 10 ns
• Operating Supply Voltage: 5.5 VDC
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: PDIP-6
• For Use With: Plastic Optical Fiber
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 4. Typical normalized optical power vs.
temperature (in recommended drive circuit).
+5 V V
Recommended Drive Circuit for HFBR-x505A/x515B
TTL INPUT
Figure 6. Recommended transmitter and receiver drive circuit (I
5
0 V
82.5
47
1.2
1.1
1.0
0.9
0.8
0.7
R1
-40
CC
1
2
TTL COMPATIBLE TRANSMITTER
-20
35 mA
60 mA
V
I
CC
TEMPERATURE – °C
F
8
= 4.75 V
0
DS75451
V
0.1 µF
10 µF
+
CC
U1
C1
C2
20
= 5.25 V
40
V
CC
4
= 5.0 V
60
3
80
R1
8
7
6
5
Figure 5. Typical optical pulse width distortion
vs. temperature and power supply voltage (in
recommended drive circuit).
1
4
-1
-2
-3
-4
-5
2
1
0
-40
HFBR-15X5
V
CC
-20
U2
F, on
= 5.0 V
TEMPERATURE – °C
= 35 mA or 60 mA nominal at T
0
V
V
CC
CC
20
= 5.25 V
= 4.75 V
40
60
HFBR-25X5
80
U3
A
= 25˚C).
TTL COMPATIBLE RECEIVER
4
1
5
6
7
8
C4
0.1 µF
R2
2.7
TTL OUTPUT
+5 V V
0 V
CC