µPC7073

8

3.

ELECTRICAL SPECIFICATIONS

3.1

Discrete unit ratings

Parameter

Symbol

Conditions

Rating

Units

Power supply voltage

Including spike voltage

–63 to +0.3

V

Including spike voltage

–0.3 to +7.0

ACOM pin

Input voltage

To be defined

Logic input voltage

Relay driver output current

40

mA

Power consumption

Thermal resistance: 160

1W

Ambient operating

0 to 70

˚C

temperature

Storage temperature

–65 to +150

Caution

If the absolute maximum rating for any of the above parameters is exceeded even momentarily,

it may adversely affect the quality of this product. In other words, these absolute maximum

ratings have been set to prevent physical damage to the product. Do not use the product in such

a way as to exceed any of these ratings.

Recommended operating conditions

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Units

Power supply voltage

–58

–48

–42

V

4.75

5.0

5.25

ACOM pin

2.38

2.4

2.42

Ambient operating temperature

0

2570˚C

High level input voltage

2.0

V

Low level input voltage

0

0.8

Digital input rise and fall times

200

ns

200

050

Ω

–0.1

+0.1

V

Loop resistance (line resistance

200

Ω × 2 feeding modes

1900

Ω

+ termination resistance)

400

Ω × 2 feeding modes

1500

Terminal leakage current

08

mA

during on-hook transmission

AC inductive current

f = 60 Hz, 2Pw-Tr

Note

5.0

During loop detection (one line),

during ground detection (one line)

Note

Pw-Tr is a power transistor for feeding.