TL494AP datasheet(3/7 Pages) FCI

No de pièce	TL494AP

Description	Switchmode Pulse - Width - Modulation Control Circuit

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Fabricant	FCI [First Components International]

Site Internet	http://www.cotra.com.tw/

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ELECTRICAL CHARACTERISTICS (TA= -25 ÷ +85°C, f =10kHz)

Value

Symbol

Parameter

Test Conditions

Min

Typ

Max

Temperature,

˚С

Unit

Vref

Output voltage

I0=1.0mA

VCC=15V

4.90

5.0

5.10

-20÷+85

V

Uregin

Input regulation

VСС=7÷ 40V

I0=1.0mA

-

2

25

mV

Uregout

Output regulation

I0=1÷ 10 mA

VCC =15 V

-

1

15

25

mV

∆Vref

Output voltage change with

temperature

I0=1 mA

VCC =15 V

-

0.2

1.0

-20÷+85

%

ISC

Short circuit output current

Vref=0,

tsc< 1 s

VCC=15 V

35

50

mА

fosc

Frequency

C=0.01µF, R=12kΩ

VCC=15 V

V(03)=0.7 V

10

25

kHz

σfosc

Standard Deviation of

Frequency *

VCC=15 V

V(03)=0.7 V

-

3

%

σfosc(∆V)

Frequency Change with

Voltage

VCC=7÷40 V

V(03)=0.7 V

-

0.1

-

25

%

σfosc(∆Т)

Frequency Change with

Temperature

C=0.01µF, RT=12 kΩ

VCC=15 V

V(03)=0.7 V

-

2

%

IIB(2T)

Input bias current (pin 4)

VI=0÷5.25V

VCC=15 V

V(03)=0.7 V

-

-2

-10

µA

DCmax

Maximum duty cycle (each

output)

VI(04)=0V

VCC=15 V

V(03)=0.7 V

45

48

50

%

VTHD1

Input threshold voltage (pin 4)

(Zero Duty Cycle)

DCmax=0

VCC=15 V

V(03)=0.7 V

-

2.8

3.3

V

VTHD2

Input threshold voltage (pin 4)

(Maximum Duty Cycle)

DCmax

VCC=15 V

V(03)=0.7 V

0

-

-20÷+85

V

trc

Output voltage rise time

(Common-Emitter)

VCC=15 V

V(03)=2.0 V

100

200

ns

tfc

Output voltage fall time

(Common-Emitter)

VCC=15 V

V(03)=2.0 V

25

100

ns

trf

Output voltage rise time

(Emitter-Follower)

VCC=VC=15 V

V(03)=2.0 V

100

200

-20÷+85

ns

tff

Output voltage fall time

(Emitter-Follower)

VCC= VC= 15 V

V(03)= 2.0 V

-

35

100

-20÷+85

ns

TL494AP Switchmode Pulse - Width - Modulation Control Circuit

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