TDA8172 datasheet(2/5 Pages) STMICROELECTRONICS

2 / 5 page

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Supply Voltage (pin 2)

V5,V6

Flyback Peak Voltage

Voltage at Pin 3

+ Vs

V1,V7

Amplifier Input Voltage

+ Vs

– 0.5

Output Peak Current (non repetitive, t = 2 ms)

2.5

Output Peak Current at f = 50 or 60 Hz, t

≤ 10 µs3

Output Peak Current at f = 50 or 60 Hz, t > 10

µs2

Pin 3 DC Current at V5 <V2

100

Pin 3 Peak to Peak Flyback Current at f = 50 or 60 Hz, tfly

≤ 1.5 ms

Ptot

Total Power Dissipation at Tcase =90

°C20

Tstg,Tj

Storage and Junction Temperature

– 40, +150

°C

THERMAL DATA

Symbol

Parameter

Value

Unit

Rth (j–c)

Thermal Resistance Junction-case

Max.

°C/W

ELECTRICAL CHARACTERISTICS

(refer to the test circuits, VS = 35V, Tamb =25

oC unless otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit Fig.

Pin 2 Quiescent Current

I3 =0, I5 =0

Pin 6 Quiescent Current

I3 =0, I5 = 0

Amplifier Input Bias Current

V1 = 1 V, V7 = 2 V

– 0.1

– 1

µA1a

V1 = 2 V, V7 = 1 V

– 0.1

– 1

µA1a

V3L

Pin 3 Saturation Voltage to GND

I3 = 20 mA

1.5

Quiescent Output Voltage

Vs = 35V, Ra =39 k

Ω

V5L

Output Saturation Voltage to GND

I5 = 1.2 A

1.4

I5 = 0.7 A

0.7

V5H

Output Saturation Voltage to Supply

– I5 = 1.2 A

1.6

2.2

–I5 = 0.7 A

1.3

1.8

Junction Temperature for Thermal Shut Down

140

°C

TDA8172

2/5

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