TDA1562ST datasheet(11/24 Pages) NXP

11 / 24 page

2003 Feb 12

Philips Semiconductors

Preliminary speciﬁcation

70 W high efﬁciency power ampliﬁer

with diagnostic facility

TDA1562Q; TDA1562ST;

TDA1562SD

Vth2+

threshold voltage 2+

class-B

→ class-H

−−

4.2

Vth2−

threshold voltage 2

−

class-H

→ class-B

3.3

−−

VstH2

hysteresis

(Vth2+ − Vth1−)−

200

−

PIN STAT AS OUTPUT

Ist(mute)

mute acknowledge sink current

2.2

−−

Vst(mute)

mute acknowledge output voltage

Ist = 2.2 mA

−−

0.5

Ist(clB)

class-B operation output current

−−µA

Vst(clB)

class-B operation output voltage

Ist =15 µA

2.0

−

3.0

Ist(clH)

class-H operation source current

−140

−−µA

Vst(clH)

class-H operation output voltage

Ist = −140 µAVP − 2.5 −−

Tc(th)

threshold case temperature sensor

−

120

−°C

Diagnostic output DIAG

VDIAG

output voltage

active LOW

−−

0.6

load resistance for open load detection

100

−−Ω

Tj(th)

threshold junction temperature sensor

−

145

−°C

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Fig.6 Supply voltage transfer characteristic.

handbook, full pagewidth

VPH1

Vth−

Vth+

MGL267

fast mute

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