Data Sheet G12649EJ5V0DS00

8

μPC494

TYPICAL PERFORMANCE CHARACTERISTICS

(Unless otherwise specified, TA = 25°C, VCC = 15 V, Reference)

1.2

1.0

0.8

0.6

0.4

0.2

0

25

50

75

TA - Operating Ambient Temperature -

°C

REFERENCE VOLTAGE vs.

SUPPLY VOLTAGE

VCC - Supply Voltage - V

FREQUENCY vs. RT AND CT

RT - Timing Resistance - k

Ω

5

2

500

200

100

50

20

10

5

10

15

20

25

30

35

40

100

125

6

5

4

3

2

1

0

40

20

0

–20

–40

–60

4

2

0

–2

–4

–6

4

–25

0

25

50

75

100

567

VCC - Supply Voltage - V

FREQUENCY vs.

OPERATING AMBIENT TEMPERATURE

–25

0

25

50

75

100

MISS-OPERATION PREVENTION

CIRCUIT CHARACTERISTICS

μPC494GS,

494GS-A

Note

160

°C/W

192

°C/W

Thermal Resistance

Rth(J-A)125

°C/W

Note With 5 cm x 5 cm x 1.6 mmt

glass-epoxy substrate

MAXIMUM POWER DISSIPATION

Test Circuit

5 V

430

Ω

VCE

8

9

6

5

4

3

2

1

0

500

200

100

50

20

10

5

2

1

VCC = 15 V

IREF = 1 mA

VCC = 15 V

RT = 12 k

Ω

CT = 0.01

μF

VCC = 15 V

C

T

=

470

pF

1000

pF

0.01

μF

0.047

μF

REFERENCE VOLTAGE vs.

OPERATING AMBIENT TEMPERATURE

TA - Operating Ambient Temperature -

°C

TA - Operating Ambient Temperature -

°C

μPC494GT-A Note

μPC494C

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