Secondary Side Housekeeping Circuit

AS23xx

95

ASTEC Semiconductor

Absolute Maximum Ratings

Parameter

Symbol

Rating

Unit

Supply Voltage

20

V

Continuous Power Dissipation at 25

1000

mW

Junction Temperature

150

°C

Storage Temperature Range

– 65 to 150

°C

Lead Temperature, Soldering 10 Seconds

300

°C

Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress

rating only and functional operation of the device at these or any other conditions above indicated in the operational sections of this

specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

Typical Thermal Resistance

Package

Typical Derating

16L SOIC

65

° C/W

45

° C/W

10.0 mW/

°C

16L PDIP

80

° C/W

35

° C/W

12.5 mW/

°C

Recommended Conditions

Parameter

Symbol

Rating

Unit

Supply Voltage

5 - 12

V

Electrical Characteristics

Electrical Characteristics are guaranteed over full junction temperature range (0 to 105

° C). Ambient temperature must be derated

+3.3 V = 3.3 V; +5 V = 5V; +12 V = 12 V; –12 V = –12 V; – 5 V = – 5 V; OFF = low.

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Bias

Supply Current

no faults

8

12

mA

4.2

V

Undervoltage, Overvoltage

+3.3 V (Not available on AS2350)

+3.3 V Undervoltage

UV

2.87

2.95

3.03

V

+3.3 V Overvoltage

OV

3.76

3.86

3.96

V

+3.3 V Input Current

-0.1

0

0.1

mA

+5 V

+5 V Undervoltage

UV

4.40

4.50

4.60

V

+5 V Overvoltage

OV

5.74

5.89

6.04

V

+5 V Input Current

1.6

2.5

mA

+12 V

+12 V Undervoltage

UV

10.25

10.50

10.60

V

+12 V Overvoltage

OV

14.53

14.90

15.27

V

+12 V Input Current

0.8

1.5

mA