TDA8922C datasheet(13/40 Pages) NXP

13 / 40 page

TDA8922C_1

Product data sheet

Rev. 01 — 7 September 2009

13 of 40

NXP Semiconductors

TDA8922C

× 75 W class-D power ampliﬁer

10. Thermal characteristics

11. Static characteristics

Table 7.

Thermal characteristics

Symbol

Parameter

Conditions

Typ

Unit

Rth(j-a)

thermal resistance from junction to ambient

in free air

K/W

Rth(j-c)

thermal resistance from junction to case

1.5

K/W

Table 8.

Static characteristics

VDD =30V; VSS = −30 V; fosc = 350 kHz; Tamb = 25 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply

VDD

supply voltage

Operating mode

[1] 12.5

32.5

VSS

negative supply voltage

Operating mode

[2]

−12.5 −30

−32.5 V

Vth(ovp)

overvoltage protection threshold

voltage

Standby, Mute modes

VDD − VSS

Vth(uvp)

undervoltage protection threshold

voltage

VDD − VSS

Vth(ubp)

unbalance protection threshold voltage

[3] -33

Iq(tot)

total quiescent current

Operating mode; no load; no

ﬁlter; no RC-snubber network

connected

4070mA

Istb

standby current

480

650

µA

Mode select input; pin MODE

VMODE

voltage on pin MODE

referenced to SGND

[4] 0-

Standby mode

[4][5] 0

0.8

Mute mode

[4][5] 2.1

2.9

Operating mode

[4][5] 4.2

input current

VI = 5.5 V

110

150

µA

Audio inputs; pins IN1M, IN1P, IN2P and IN2M

input voltage

DC input

[4] -0

-V

Ampliﬁer outputs; pins OUT1 and OUT2

VO(offset)

output offset voltage

SE; Mute mode

±25

SE; Operating mode

[6] --

±150

BTL; Mute mode

±30

BTL; Operating mode

[6] --

±210

Stabilizer output; pin STABI

VO(STABI)

output voltage on pin STABI

Mute and Operating modes;

with respect to VSSD

9.3

9.8

10.3

Temperature protection

Tact(th_prot)

thermal protection activation

temperature

154

°C

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