TDA7850

Electrical specifications

9/18

VAM in

VS automute threshold

(Amp: Mute)

Att  80 dB; POref = 4 W

(Amp: Play)

Att < 0.1 dB; PO = 0. 5W

6.5

7

7.5

8

V

Ipin23

Muting pin current

VMUTE = 1.5 V

(Sourced Current)

712

18

A

VMUTE = 3.5 V

-5

18

A

HSD section

Vdropout Dropout voltage

IO = 0.35 A; VS = 9 to 16 V

0.25

0.6

V

Iprot

Current limits

400

800

mA

Offset detector (Pin 25)

VM_ON

Mute voltage for DC offset

detection enabled

VST-BY = 5 V

8V

VM_OFF

6V

VOFF

Detected differential output offset VST-BY = 5 V; Vmute = 8 V

±2

±3

±4

V

V25_T

Pin 25 voltage for detection =

TRUE

VST-BY = 5 V; Vmute = 8 V

VOFF > ±4 V

01.5

V

V25_F

Pin 25 Voltage for detection =

FALSE

VST-BY = 5 V; Vmute = 8 V

VOFF > ±2 V

12

V

1.

Saturated square wave output.

Table 4.

Electrical characteristics (continued)

(Refer to the test and application diagram, VS = 14.4 V; RL = 4 ; Rg = 600 ; f = 1 kHz;

Tamb = 25 °C; unless otherwise specified).

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit