3

ASTEC Semiconductor

AS384x

Current Mode Controller

Absolute Maximum Ratings

Parameter

Symbol

Rating

Unit

Supply Voltage (I

V

CC

Self-Limiting

V

Supply Voltage (Low Impedance Source)

V

CC

30

V

Output Current

I

OUT

±1

A

Output Energy (Capacitive Load)

5

µJ

Analog Inputs (Pin 2, Pin 3)

Ð0.3 to 30

V

Error Amp Sink Current

10

mA

Maximum Power Dissipation

P

D

8L SOIC

750 mW

8L PDIP

1000 mW

14L SOIC

950 mW

Maximum Junction Temperature

T

J

150

¡C

Operating Temperature

0 to 150

¡C

Storage Temperature Range

T

STG

Ð65 to 150

¡C

Lead Temperature, Soldering 10 Seconds

T

L

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.

Recommended Conditions

Parameter

Symbol

Rating

Unit

Supply Voltage

V

CC

AS3842,4

15

V

AS3843,5

10

V

Oscillator

f

OSC

50 to 500

kHz

Typical Thermal Resistances

Package

θ

JA

θ

JC

Typical Derating

8L PDIP

95¡C/W

50¡C/W

10.5 mW/¡C

8L SOIC

175¡C/W

45¡C/W

5.7 mW/¡C

14L SOIC

130¡C/W

35¡C/W

7.7 mW/¡C