TL494

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 8

www.unisonic.com.tw

QW-R103-004. I



ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

AMPLIFIER SECTION

Input Offset Voltage

Error

2

10

mV

Input Offset Current

25

250

nA

Input Bias Current

0.2

1

μA

Common-Mode Input Voltage Range Error

-0.3 ~

V

Open-Loop Voltage Amplification

70

95

dB

Unity-Gain Bandwidth

800

kHz

Common-Mode Rejection Ratio

Error

65

80

dB

Output Sink Current(pin 3)

0.3

0.7

mA

Output source Current(pin 3)

-2

mA

OUTPUT SECTION

Collector off-state current

2

100

μA

Emitter off-state Current

-100

μA

Collector -emitter

Saturation Voltage

Common-emitter

1.1

1.3

V

Emitter-Follower

1.5

2.5

Output Control Input Current

3.5

mA

DEAD TIME CONTROL SECTION

Input bias (pin 4)

-2

-10

μA

Maximum duty cycle, each output

45

%

Input threshold Voltage(pin 4)

Zero duty Cycle

3

3.3

V

Maximum duty cycle

0

PWM COMPARATOR SECTION

Input Threshold Voltage(pin 3)

Zero Duty cycle

4

4.5

V

Input Sink Current (pin 3)

V(pin 3)= 0.7V

0.3

0.7

mA

TOTAL DEVICE

Standby Supply Current

outputs open

6

10

mA

9

15

Average supply current

V(pin 4)=2V

7.5

mA

SWITCHING CHARACTERISTICS, TA=25

C

Output Voltage Rise Time

Common-emitter configuration

100

200

ns

Output Voltage Fall Time

25

100

ns

Output Voltage Rise Time

Emitter-follower configuration

100

200

ns

Output Voltage Fall Time

40

100

ns

2. For conditions shown as MIN or MAX, use appropriate value under recommended operating conditions.

3. Duration of the short-circuit should not exceed one second.

4. Standard deviation is a measure of the statistical distribution the mean as derived from the formula: