HCPL-7560-500 Avago Technologies US Inc., HCPL-7560-500 Datasheet - Page 12

• Manufacturer Part Number: HCPL-7560-500
• Description: OPTOCOUPLER MODULE 8-SMD
• Manufacturer: Avago Technologies US Inc.
• Type: Sigma-Delta Modulatorr

Specifications of HCPL-7560-500

• Voltage - Isolation: 3750Vrms
• Input Type: DC
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SMD Gull Wing
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Applications Information
Digital Current Sensing
As shown in Figure 16, using the Isolated 2-chip A/D
converter to sense current can be as simple as connect-
ing a current-sensing resistor, or shunt, to the input and
reading output data through the 3-wire serial output
interface. By choosing the appropriate shunt resistance,
any range of current can be monitored, from less than 1
A to more than 100 A.
CURRENT
Figure 16. Typical Application Circuit.
12
INPUT
R
SHUNT
0.02
+
0.1 µF
C1
ISOLATED
+ 5 V
V
V
V
GND1
DD1
IN+
IN-
HCPL-7560
MCLK
MDAT
GND2
V
DD2
NON-ISOLATED
+ 5 V
Even better performance can be achieved by fully utiliz-
ing the more advanced features of the Isolated A/D con-
verter, such as the pre-trigger circuit, which can reduce
conversion time to less than 1µs, the fast over-range
detector for quickly detecting short circuits, different
conversion modes giving various resolution/speed
trade-offs, offset calibration mode to eliminate initial
offset from measurements, and an adjustable threshold
detector for detecting non-short circuit overload condi-
tions.
0.1 µF
C2
CCLK
CLAT
CDAT
MCLK1
MDAT1
MCLK2
MDAT2
GND
HCPL-0872
RESET
CHAN
SCLK
SDAT
OVR1
THR1
V DD
CS
+
10 µF
C3
3-WIRE
SERIAL
INTERFACE