hcpl-073a-560e Avago Technologies, hcpl-073a-560e Datasheet - Page 15

• Manufacturer Part Number: hcpl-073a-560e
• Description: Very Low Power Consumption High Gain Optocouplers
• Manufacturer: Avago Technologies

Figure 12. Recommended Power Supply Filter for HCPL-47XX Optocouplers.
Figure 11. Typical Optical Isolation Used for Power-Loss Indication and Regulation Signal Feedback.
Figure 10. HCPL-47XX Isolated Monitoring Circuits for 2-Wire ISDN Telephone Line.
15
PRIMARY
115/230
VAC
1
2
3
4
PRIMARY–SECONDARY
NOTE: THE CIRCUITS SHOWN IN THIS FIGURE REPRESENT POSSIBLE, FUNCTIONAL APPLICATION OF THE HCPL-47XX
OPTOCOUPLER TO AN ISDN LINE INTERFACE. THIS CIRCUIT ARRANGEMENT DOES NOT GUARANTEE COMPLIANCE,
CONFORMITY, OR ACCEPTANCE TO AN ISDN, OR OTHER TELECOMMUNICATION STANDARD, OR TO FCC OR TO OTHER
GOVERNMENTAL REGULATORY AGENCY REQUIREMENTS. THESE CIRCUITS ARE RECOMMENDATIONS THAT MAY MEET
THE NEEDS OF THESE APPLICATIONS. Agilent DOES NOT IMPLY, REPRESENT, NOR GUARANTEE THAT
THESE CIRCUIT ARRANGEMENTS ARE FREE FROM PATENT INFRINGEMENT.
VAC
2-WIRE
ISDN
LINE
POWER ISOLATION
BARRIER
EMI FILTER
HCPL-4701 OR HCPL-4731
CURRENT
LIMITER
PROTECTION
AND
CIRCUIT
SUPPLY
P0WER
EMERGENCY
POWER
SECONDARY
1
POWER
POWER
SUPPLY
FILTER
CAPACITOR
SWITCHING
8
7
6
5
CONTROL
ELEMENT
CIRCUIT
RECOMMENDED V
ISOLATION BARRIER
1
TELEPHONE LINE
0.1 µF
SWITCHED–
HCPL-4731
HCPL-4701
1
VIA CNR200
FEEDBACK
HCPL-4701
SUPPLY
ISOLATION
POWER
MODE
BARRIER
ERROR
+
CC
10 µF
100
FILTER
2
RECTIFIER
FILTER
SOFT START
COMMAND
AND
INTERRUPT FLAG
POWER DOWN
R
L
V
V
CC
O
TRANSMIT
LINE POLARITY
LINE PRESENCE
SECONDARY/
EMERGENCY
POWER
V
V
2
RECEIVE
CC
CC
– RETURN
V
GND 2
O
TELEPHONE
INTERFACE
CIRCUIT
LINE