Tda8932b, Nxp semiconductors – NXP Semiconductors TDA8932B User Manual

Page 18

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TDA8932B_4

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 04 — 18 December 2008

18 of 48

NXP Semiconductors

TDA8932B

Class-D audio amplifier

Diagnostic output: pin DIAG

[1]

V

O

output voltage

protection activated; see

Table 6

-

-

0.8

V

Operating mode

2

2.5

3.3

V

Bias voltage for inputs: pin INREF

V

O(bias)

bias output voltage

with respect to pin V

SSA

-

2.1

-

V

Half supply voltage

Pins HVP1 and HVP2

V

O

output voltage

half supply voltage to charge SE
capacitor

0.5V

P

0.2

0.5V

P

0.5V

P

+

0.2

V

I

O

output current

V

HVP1

= V

O

1 V;

V

HVP2

= V

O

1 V

-

50

-

mA

Pin HVPREF

V

O

output voltage

half supply reference voltage in
Mute mode

0.5V

P

0.2

0.5V

P

0.5V

P

+

0.2

V

Reference voltage for internal logic: pin DREF

V

O

output voltage

4.5

4.8

5.1

V

Amplifier outputs: pins OUT1 and OUT2

|

V

O(offset)

|

output offset voltage

SE; with respect to pin HVPREF

Mute mode

-

-

15

mV

Operating mode

-

-

100

mV

BTL

Mute mode

-

-

20

mV

Operating mode

-

-

150

mV

Stabilizer output: pins STAB1 and STAB2

V

O

output voltage

Mute mode and Operating mode;
with respect to pins V

SSP1

and

V

SSP2

10

11

12

V

Voltage protection

V

P(uvp)

undervoltage protection
supply voltage

8.0

9.2

9.9

V

V

P(ovp)

overvoltage protection
supply voltage

36.1

37.4

40

V

V

P(th)(ubp)l

low unbalance protection
threshold supply voltage

V

HVPREF

= 11 V

-

-

18

V

V

P(th)(ubp)h

high unbalance protection
threshold supply voltage

V

HVPREF

= 11 V

29

-

-

V

Current protection

I

O(ocp)

overcurrent protection
output current

current limiting

4

5

-

A

Temperature protection

T

act(th_prot)

thermal protection activation
temperature

155

-

160

°

C

Table 10.

Static characteristics

…continued

V

P

= 22 V; f

osc

= 320 kHz; T

amb

= 25

°

C; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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