Broadcom

AV02-0876EN

5

HCPL-0720, HCPL-7720, HCPL-0721,

and HCPL-7721 Data Sheet

40-ns Propagation Delay, CMOS Optocoupler

Reflow Soldering Profile

Recommended reflow condition as per JEDEC Standard, J-STD-020 (latest revision). Non-Halide Flux should be used.

Regulatory Information

The HCPL-772X/072X have been approved by the following organizations:



UL — Recognized under UL1577, component recognition program, File E55361.



CSA — Approval under CSA Component Acceptance Notice #5, File CA88324.



IEC/EN/DIN EN 60747-5-5

Insulation and Safety Related Specifications

All Broadcom data sheets report the creepage and clearance inherent to the optocoupler component itself. These

dimensions are needed as a starting point for the equipment designer when determining the circuit insulation requirements.

However, once mounted on a printed circuit board, minimum creepage and clearance requirements must be met as specified

for individual equipment standards. For creepage, the shortest distance path along the surface of a printed circuit board

between the solder fillets of the input and output leads must be considered. There are recommended techniques such as

grooves and ribs, which may be used on a printed circuit board to achieve desired creepage and clearances. Creepage and

clearance distances will also change depending on factors such as pollution degree and insulation level.

Parameter

Symbol

Value

Unit

Conditions

772X

072X

Minimum External Air Gap

(Clearance)

L(I01)

7.1

4.9

mm

Measured from input terminals to output terminals,

shortest distance through air.

Minimum External Tracking

(Creepage)

L(I02)

7.4

4.8

mm

Measured from input terminals to output terminals,

shortest distance path along body.

Minimum Internal Plastic Gap

(Internal Clearance)

0.08

0.08

mm

Insulation thickness between emitter and detector;

also known as distance through insulation.

Tracking Resistance

(Comparative Tracking Index)

CTI

≥175

≥175

V

DIN IEC 112/VDE 0303 Part 1.

Isolation Group

IIIa

IIIa

Material Group (DIN VDE 0110, 1/89, Table 1).