Panasonic AN7191NZ Datasheet
ICs for Audio Common Use
AN7191NZ
Dual 20 W BTL audio power amplifier
■ Overview
The AN7191NZ is an audio power IC developed for
the sound output of car audio (dual 20 W). It is incorporating various protective circuits to protect the IC from
destruction by GND-open short circuit to GND and power
supply surge which are the important subject of power
IC protection, so the IC will largely contribute to a high
reliability design of equipment. Also, it is incorporating
a perfect muting circuit which is free from shock noise,
so that a shock noise design under the set transient condition can be made easily using together with its standby
function.
■ Features
• BTL 20 W × 2-channel (4 Ω), GV = 34 dB
• Built-in various protection circuits (thermal protection,
short circuit to V
short circuit to V
overvoltage and supply surge, and ASO, etc.)
Especially, the supply surge breakdown voltage is 100
V or more.
GND open breakdown voltage is 16 V or more.
• Built-in standby function (free from shock noise at
standby on/off)
• Built-in muting function
Free from shock noise at mute-on/off.
Adapting attenuator method so that abnormal sound due
to waveform deformation is not generated.
Attack time, recovery time are 50 ms or less.
• Reduction in external components
It eliminates the need for NF and BS electrolytic capacitors.
Muting function is not required, and power supply choke
coil is unnecessary.
• Provided with beep sound input pin
• 2 Ω load guaranteed
and short circuit to GND, VCC-open
CC
, GND-open short circuit to GND,
CC
Unit : mm
18.00±0.30
13.50±0.30
φ3.60±0.10
115
1.27
19.00±0.30
19.30±0.30
0.50
+0.20
–0.10
4.00±0.20
1.50±0.10
10.0±0.30
(0.61)
(1.80) (1.95)
(2.54)
0.25
3.25±0.10
13.25±0.30
15.65±0.50
18.95±0.50
2.40±0.50
R0.55
+0.15
–0.05
HZIP015-P-0745A
■ Applications
• Car audio
1
AN7191NZ ICs for Audio Common Use
■ Block Diagram
CC
V
1
Ch.1 GND Ch.2 GND
3
Ref.
Ripple filter
12
14
Ch.1 out (−)
4
Att.
Ch.1 out (+)
2
Att.
8
10
Beep in
GND (sub)
■ Pin Descriptions
Pin No. Description
1 Power supply
2 Ch.1 output (+)
3 Grounding (output ch.1)
4 Ch.1 output (−)
5 Standby
6 Ch.1 input
7 Muting
8 Grounding (sub)
6
Ch.1 in
Protection cct.
Att.con.
5
7
Standby
Pin No. Description
Att.
Att.
9
Mute
11
Ch.2 in
GND (input)
9 Grounding (input)
10 Beep sound input
11 Ch.2 input
12 Ripple filter
13 Ch.2 output (−)
14 Grounding (output ch.2)
15 Ch.2 output (+)
13
Ch.2 out (−)
15
Ch.2 out (+)
■ Absolute Maximum Ratings
Parameter Symbol Rating Unit
2
Supply voltage
Peak supply voltage
Supply current I
Power dissipation
Operating ambient temperature
Storage temperature
Note)*1: Ta = 25°C except power dissipation, operating ambient temperature and storage temperature.
2 : Without signal
*
3 : Time = 0.2 s
*
4: Ta = 85°C
*
2
*
3
*
4
*
1
*
1
*
V
CC
V
surge
CC
P
D
T
opr
T
stg
25 V
80 V
9.0 A
59 W
−30 to +85 °C
−55 to +150 °C
ICs for Audio Common Use AN7191NZ
■ Recommended Operating Range
Parameter Symbol Range Unit
Supply voltage V
CC
■ Electrical Characteristics at VCC = 13.2 V, freq. = 1 kHz, Ta = 25°C
Parameter Symbol Conditions Min Typ Max Unit
Quiescent current I
Standby current I
Output noise voltage
*1
V
Voltage gain 1 G
Total harmonic distortion 1 THD1Po = 0.5 W, RL = 4 Ω0.07 0.4 %
Maximum output power 1 P
1
Ripple rejection ratio
*
Channel balance CB V
Cross-talk
*1
Output offset voltage V
Muting effect
*1
Input impedance Z
Voltage gain 2 G
Total harmonic distortion 2 THD2Po = 0.5 W, RL = 2 Ω0.1 0.5 %
Maximum output power 2 P
2
Shock noise
*
Total harmonics distortion 3 THD
Note)*1 : Measurement using a bandwidth 15 Hz to 30 kHz (12 dB/OCT) filter.
2 : For V
*
= on/off, change over the standby terminal by the voltages of 0 V and 5 V at the time shown in the right.
STB
V
CQ
STB
NO
V1
O1
= 0 mV, RL = 4 Ω120 250 mA
IN
V
= 0 mV, RL = 4 Ω110µA
IN
Rg = 4.7 kΩ, RL = 4 Ω0.22 0.5
V
= 40 mV, RL = 4 Ω 32 34 36 dB
IN
THD = 10%, RL = 4 Ω 16 18 W
RR RL = 4 Ω, Rg = 4.7 kΩ, Vr = 1 V[rms], 60 72 dB
fr = 1 kHz
= 40 mV, RL = 4 Ω01dB
IN
CT V
OFFRg
MT V
i
V2
O2
V
S
= 40 mV, RL = 4 Ω, Rg = 4.7 kΩ 55 65 dB
IN
= 4.7 kΩ, RL = 4 Ω− 250 0 250 mV
= 40 mV, RL = 4 Ω 70 82 dB
IN
V
= ± 0.3 V
IN
V
= 40 mV, RL = 2 Ω 32 34 36 dB
IN
DC
THD = 10%, RL = 2 Ω 16 24 W
RL = 4 Ω, Rg = 4.7 kΩ, V
V
= on/off, 50Hz HPF-on
STB
3VIN
= 10 mV, f
= 20 kHz, Rg = 4.7 kΩ, 0.10 0.5 %
IN
RL = ∞
8.0 to 18.0 V
22 28 35 kΩ
= 5 V, − 100 0 100 mV
MUTE
mV[rms]
[p-0]
Standby terminal voltage
5 V
0 V
120 ms 120 ms
3
AN7191NZ ICs for Audio Common Use
■ Terminal Equivalent Circuits
Pin No. Equivalent circuit Description DC voltage
1 Power supply connection pin 13.2 V
2 Ch.1 output pin (+) : 6.6 V
1
Drive circuit
Pre-amp.
Ch.1 positive-phase output pin.
2
= 6.6 V
V
Drive circuit
3
30 kΩ 1.2 kΩ
REF
3 GND (Output) : 0 V
Grounding pin for ch.1 output.
4 Ch.1 output pin (−) : 6.6 V
1
Drive circuit
Pre-amp.
Ch.1 reverse-phase output pin.
4
V
= 6.6 V
Drive circuit
3
5 Standby control pin :
5
10 kΩ
30 kΩ 1.2 kΩ
REF
Standby changeover pin threshold
voltage approx. 2.1 V.
900 Ω
6 Ch.1 input pin : 0 mV to
200 Ω
30 kΩ
6
Approx.
400 Ω
15 µA
Approx.
15 µA
Ch.1 input signal applied pin input 10 mV
impedance 30 kΩ.
7 Mute control pin :
7
5 kΩ
Mute changeover pin threshold voltage approx. 2.0 V.
4
ICs for Audio Common Use AN7191NZ
■ Terminal Equivalent Circuits (continued)
Pin No. Equivalent circuit Description DC voltage
8 GND (sub) : 0 V
Being connected to substrate only.
9 GND (input) : 0 V
Ground pin for input.
10 Beep sound input pin : 2.1 V
V
= 2.1 V
REF
1.2 kΩ 30 kΩ
1.2 kΩ
20 kΩ
Beep sound signal input pin.
2
Input impedance 10 kΩ.
10
20 kΩ
1.2 kΩ
15
V
= 2.1 V
REF
11 Ch.2 input pin : 1 mV to
11
200 Ω
1.2 kΩ 30 kΩ
Approx.
15 µA
400 Ω
Approx.
15 µA
Ch.2 input signal applied pin. 10 mV
Input impedance 30 kΩ.
30 kΩ
12 Ripple filter pin : 13.0 V
V
CC
Output current 3 mA to 10 mA.
30 kΩ
12
1.2 mA
40 kΩ
200 µA
13 Ch.2 output pin (−) : 6.6 V
1
Pre-amp.
Ch.2 reverse-phase output pin.
Drive circuit
13
V
= 6.6 V
REF
15
Drive circuit
30 kΩ 1.2 kΩ
14 GND (output) : 0 V
Ground pin for ch.2 output.
5
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