POWER

AMPLIFIER

4

5

7

THER MAL

PROTECTION

1

REFERENCE

VOLTAGE

23

6

FLYBACK

GENERATOR

FLYBACK

GENERATOR

OUTPUT

GROUND

NON-INVERTING INPUT

OR REFERENCE VOLTAGE

INVERTING INPUT

OUTPUT

STAGE

SUPPLY

SUPPLY

VOLTAGE

STV9378

BLOCK DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Supply Voltage (Pin 2) (see note 1)

50

V

Flyback Peak Voltage (Pin 6) (see note 1)

100

V

Amplifier Input Voltage (Pins 1-7) (see note 1)

V

Maximum Output Peak Current (see notes 2 and 3)

1.5

A

Maximum Sink Current (first part of flyback) (t < 1ms)

1.5

A

Maximum Source Current (t < 1ms)

1.5

A

Operating Ambient Temperature

- 20, + 75

Storage Temperature

- 40, + 150

Junction Temperature

+150

Notes :

1.

Versus GND.

2.

The output current can reach 4A peak for t

≤ 10µs (up to 120Hz).

3.

Provided SOAR is respected (see Figures 1 and 2).

THERMAL DATA

Symbol

Parameter

Value

Unit

Junction-case Thermal Resistance

Max.

3

Temperature for Thermal Shutdown

150

10

Recommended Max. Junction Temperature

120

STV9378

2/5