TDA8933B 데이터 시트보기 (PDF) - NXP Semiconductors.

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TDA8933B

Class-D audio amplifer

NXP Semiconductors. 

NXP Semiconductors

TDA8933B

Class D audio amplifier

Table 10. Characteristics …continued

VP = 25 V, fosc = 320 kHz and Tamb = 25 °C; unless specified otherwise.

Symbol Parameter

Conditions

Min

Typ

Engage input: pin ENGAGE[1]

VO

output voltage

VI

input voltage

IO

output current

VI = 3 V

VIL

LOW-level input

voltage

2.4

2.8

0

-

-

50

0

-

VIH

HIGH-level input

voltage

2.4

-

Diagnostic output: pin DIAG[1]

VO

output voltage

protection activated; see

-

-

Table 6

Operating mode

2

2.5

Bias voltage for inputs: pin INREF

VO(bias)

bias output voltage

Half-supply voltage

Reference to VSSA

-

2.1

Pins HVP1 and HVP2

VO

output voltage

half-supply voltage to

charge SE capacitor

0.5VP − 0.2 V 0.5VP

IO

output current

VHVP1 = VHVP2 = VO − 1 V

-

50

Pin HVPREF

VO

output voltage

half-supply reference

voltage in Mute mode

0.5VP − 0.2 V 0.5VP

Reference voltage for internal logic: pin DREF

VO

output voltage

reference to VSSA

Amplifier outputs: pins OUT1 and OUT2

4.5

4.8

VO(offset)

output offset voltage SE; with respect to HVPREF

Mute mode

-

-

Operating mode

-

-

BTL

Mute mode

-

-

Operating mode

-

-

Stabilizer output: pins STAB1, STAB2

VO

output voltage

Mute mode and

10

11

Operating mode; with

respect to pins VSSP1 and

VSSP2

Voltage protections

VP(uvp)

undervoltage

protection supply

voltage

8.0

9.5

VP(ovp)

overvoltage protection

supply voltage

36.1

38.5

Max

Unit

3.1

V

6.0

V

60

µA

0.8

V

6.0

V

0.8

V

3.3

V

-

V

0.5VP + 0.2 V V

-

mA

0.5VP + 0.2 V V

5.1

V

15

mV

100

mV

20

mV

150

mV

12

V

9.9

V

40

V

TDA8933B_1

Preliminary data sheet

Rev. 01 — 23 October 2008

© NXP B.V. 2008. All rights reserved.

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