Primary Side PWM Controller

AS2214

87

ASTEC Semiconductor

Absolute Maximum Ratings

Parameter

Symbol

Rating

Unit

Reference Current

200

mA

Output Current

1A

Supply Voltage

20

V

Output Voltage

20

V

Continuous Power Dissipation at 25

500

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.

Recommended Conditions

Parameter

Symbol

Rating

Unit

Supply Voltage

10 - 15

V

Oscillator

50 - 250

kHz

Typical Thermal Resistance

Package

Typical Derating

14L PDIP

85

° C/W

40

° C/W

11.7 mW/

°C

Electrical Characteristics

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

° C). Ambient temperature must be derated

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Error Amplifier

Input Voltage

°C

2.465

2.500

2.535

V

Input Bias Current

-0.1

-1

µA

Voltage Gain

2

65

90

dB

Transconductance

1

mA/mV

Unity Gain Bandwidth

GBW

0.8

1.2

MHz

Power Supply Rejection Ratio

PSRR

12

60

70

dB

Output Sink Current

2

6

mA

Output Source Current

0.5

1.0

mA

Output Swing High

Ω to GND

5

5.5

V

Output Swing Low

0.7

1.1

V