Philips TDA8571J 用户手册

2002 Mar 05

2

×

•

Requires very few external components

•

High output power

•

Low output offset voltage

•

Fixed gain

•

Diagnostic facility (distortion, short-circuit and
temperature pre-warning)

•

Good ripple rejection

•

Mode select switch (operating, mute and standby)

•

Load dump protection

•

Short-circuit safe to ground and to V

P

 and across the

load

•

Low power dissipation in any short-circuit condition

•

Thermally protected

•

Reverse polarity safe

•

Electrostatic discharge protection

•

No switch-on/switch-off plop

•

Flexible leads

•

Low thermal resistance

•

Pin compatible with the TDA8568Q, except for the gain.

The TDA8571J is a integrated class-B output amplifier
contained in a 23-lead Single-In-Line (SIL) plastic power
package. It contains four amplifiers in a BTL configuration,
each with a gain of 34 dB. The output power is 4

×

40 W

(EIAJ) into a 4

Ω

 load.

•

Primarily developed for car radio applications.

V

P

operating supply voltage

6

14.4

18

V

I

ORM

repetitive peak output current

−

−

7.5

A

I

q(tot)

total quiescent current

−

200

−

mA

I

stb

standby current

−

0.2

100

µ

A

I

sw

switch-on current

−

−

80

µ

A



Z

i



input impedance

25

30

−

k

Ω

P

o(EIAJ)

EIAJ output power

THD = maximum

−

40

−

W

SVRR

supply voltage ripple rejection

R

s

= 0

Ω

−

50

−

dB

α

cs

channel separation

R

s

= 10 k

Ω

−

50

−

dB

G

v(cl)

closed-loop voltage gain

33

34

35

dB

V

n(o)

noise output voltage

R

s

= 0

Ω

−

−

170

µ

V



V

OS



DC output offset voltage

MUTE

−

−

80

mV

∆

V

OS



delta DC output offset voltage

ON

↔

MUTE

−

−

80

mV

TDA8571J

DBS23P

plastic DIL-bent-SIL power package; 23 leads (straight lead length 3.2 mm)

SOT411-1