AS2214 datasheet(5/8 Pages) ETC

5 / 8 page

Primary Side PWM Controller

AS2214

ASTEC Semiconductor

Absolute Maximum Ratings

Parameter

Symbol

Rating

Unit

Reference Current

IREF

200

Output Current

IOUT

Supply Voltage

VCC

Output Voltage

VOUT

Continuous Power Dissipation at 25

° CPD

500

Junction Temperature

150

°C

Storage Temperature Range

TSTG

– 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

VCC

10 - 15

Oscillator

FOSC

50 - 250

kHz

Typical Thermal Resistance

Package

θJA

θJC

Typical Derating

14L PDIP

° 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

based on power dissipation and package thermal characteristics. Unless otherwise specified, the conditions of test are VCC = 15 V;

BOK = 3 V; OV = 0V; RT = 680

Ω; CT = 10 nF. To override UVLO, VCC should be raised above 18 V prior to test.

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Error Amplifier

Input Voltage

VFB

TJ = 25

°C

2.465

2.500

2.535

Input Bias Current

IBIAS

-0.1

-1

µA

Voltage Gain

AVOL

≤ VCOMP ≤ 4 V

Transconductance

mA/mV

Unity Gain Bandwidth

GBW

0.8

1.2

MHz

Power Supply Rejection Ratio

PSRR

≤ VCC ≤ 18 V

Output Sink Current

ICOMPL

VFB = 2.7 V; VCOMP = 1.1 V

Output Source Current

ICOMPH

VFB = 2.3 V; VCOMP = 5 V

0.5

1.0

Output Swing High

ICOMPH

VFB = 2.3 V; RL = 15

Ω to GND

5.5

Output Swing Low

ICOMPL

VFB = 2.7 V; RL = 15

Ω to VREG

0.7

1.1

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