1-236

Regulatory Information

The HCPL-7820/7825 has been

approved by the following

organizations:

UL

Recognized under UL 1577,

Component Recognition Program,

FILE E55361.

CSA

Approved under CSA Component

Acceptance Notice #5, File CA

88324.

VDE 0884 (06.92) Insulation Characteristics

Description

Symbol

Characteristic

Unit

Installation classification per DIN VDE 0110, Table 1

for rated mains voltage

≤ 300 V rms

I-IV

for rated mains voltage

≤ 600 V rms

I-III

Climatic Classification

40/100/21

Pollution Degree (DIN VDE 0110, Table 1)*

2

Maximum Working Insulation Voltage

848

Input to Output Test Voltage, Method b**

1591

Partial discharge < 5 pC

Input to Output Test Voltage, Method a**

1273

Partial discharge < 5 pC

Highest Allowable Overvoltage**

6000

Safety-limiting values (Maximum values allowed in the event

of a failure, also see Figure 22)

Case Temperature

175

°C

Input Power

80

mW

Output Power

250

mW

Insulation Resistance at T

R

S

Ω

*This part may also be used in Pollution Degree 3 environments where the rated mains voltage is

≤ 300 V rms (per DIN VDE 0110).

**Refer to the front of the optocoupler section of the current catalog for a more detailed description of VDE 0884 and other product

safety requirements.

Note: Optocouplers providing safe electrical separation per VDE 0884 do so only within the safety-limiting values to which they are

qualified. Protective cut-out switches must be used to ensure that the safety limits are not exceeded.

Insulation and Safety Related Specifications

Parameter

Symbol

Value

Units

Conditions

Min. External Air Gap

L(IO1)

7.4

mm

Measured from input terminals to output

(External Clearance)

terminals, shortest distance through air

Min. External Tracking Path

L(IO2)

8.0

mm

Measured from input terminals to output

(External Creepage)

terminals, shortest distance path along body

Min. Internal Plastic Gap

0.5

mm

Through insulation distance, conductor to

(Internal Clearance)

conductor, usually the direct distance

between the photoemitter and

photodetector inside the optocoupler

cavity

Tracking Resistance

CTI

175

V

DIN IEC 112/VDE 0303 Part 1

(Comparative Tracking

Index)

Isolation Group

III a

Material Group (DIN VDE 0110, 1/89,

Table 1)

Option 300 – surface mount classification is Class A in accordance with CECC 00802.

VDE

Approved according to VDE

0884/06.92.