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NCP2991 Datasheet(PDF) 4 Page - ON Semiconductor

Part # NCP2991
Description  1.35 Watt Audio Power Amplifier with Selectable Fast Turn On Time
PDF  15 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP2991 Datasheet(HTML) 4 Page - ON Semiconductor

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NCP2991
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS Limits apply for TA between −40°C to +85°C (Unless otherwise noted).
Characteristic
Symbol
Conditions
Min
(Note 6)
Typ
Max
(Note 6)
Unit
Supply Quiescent Current
Idd
Vp = 2.5 V, No Load
Vp = 5.0 V, No Load
1.8
1.95
3.5
mA
Vp = 2.5 V, 8 W
Vp = 5.0 V, 8 W
1.8
1.95
3.5
Common Mode Voltage
Vcm
Vp/2
V
Shutdown Current
ISD
0.02
0.5
mA
Shutdown Pull−Down
RSD
300
kW
Shutdown Voltage High
VSDIH
1.2
V
Shutdown Voltage Low
VSDIL
0.4
V
Turn On Time (Note 8)
TWU
TON = GND
TON = VP
30
15
ms
Turn Off Time
TOFF
1.0
ms
Output Impedance in Shutdown Mode
ZSD
8.5
kW
Output Swing
Vloadpeak
Vp = 2.5 V, RL = 8.0 W
Vp = 5.0 V, RL = 8.0 W (Note 7)
TA = +25°C
1.9
3.8
2.4
4.7
V
RMS Output Power
PO
Vp = 2.5 V, RL = 4.0 W
THD + N < 1%
Vp = 2.5 V, RL = 8.0 W
THD + N < 1%
Vp = 5.0 V, RL = 8.0 W
THD + N < 1%
0.5
0.3
1.35
W
Maximum Power Dissipation (Note 8)
PDmax
Vp = 5.0 V, RL = 8.0 W
0.65
W
Output Offset Voltage
VOS
Vp = 2.5 V
Vp = 5.0 V
1.0
mV
Signal−to−Noise Ratio
SNR
Vp = 2.5 V, G = 2.0
20 Hz < F < 20 kHz
86
dB
Positive Supply Rejection Ratio
PSRR V+
G = 2.0, RL = 8.0 W
Cby = 1.0 mF
Input Grounded
F = 217 Hz
Vp = 5.0 V
Vp = 4.2 V
Vp = 3.0 V
F = 1.0 kHz
Vp = 5.0 V
Vp = 4.2 V
Vp = 3.0 V
−91
−91
−91
−103
−103
−103
dB
Efficiency
h
Vp = 2.5 V, Porms = 320 mW
Vp = 5.0 V, Porms = 1.0 W
71
64
%
Thermal Shutdown Temperature
Tsd
160
°C
Total Harmonic Distortion
THD
Vp = 2.5 V, F = 1.0 kHz
RL = 4.0 W, AV = 2.0
PO = 0.32 W
Vp = 5.0 V, F = 1.0 kHz
RL = 8.0 W, AV = 2.0
PO = 1.0 W
0.03
0.015
%
6. Min/Max limits are guaranteed by design, test or statistical analysis.
7. This parameter is guaranteed but not tested in production in case of a 5.0 V power supply.
8. See page 13 for a theoretical approach of this parameter.



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