to the test circuit unless otherwise specified) (continued)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Parabola Coefficient

(see Figure 2)

=

0.26

K2

Parabola Coefficient

(see Figure 2)

=

0.70

– 40

40

mV

Current Source

S1

→ b

100

µA

Saturation Voltage

S2

→ b1

2

V

Saturation Voltage

S2

→ cS1 → b

0.8

1.5

V

Forward Voltage

S2

→ dS1 → b

1.2

1.7

V

Frame Sawtooth Current

66

µA

7

R7

R6

10k

Ω

10k

Ω

R2

R8

20k

Ω

a

b

S1

R3

11k

Ω

10k

Ω

R1

S2

a

b

c

d

TDA8145

V

S

V

F

V

SATH

I

O

V

SATL

I

F

-I

O

I

FR

V

REF

V

FR

6

5

8

4

3

1

2

Figure 1 : Test Circuit

-60

0

15

30

36

60

V

7F

V

7A

V

7B

V

7C

V

7D

V

7E

V

I

Figure 2 : Parabola Characteristics

TDA8145

3/5