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NCP2821FCT1G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
NCP2821
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (Limits apply for T
A
= +25°C unless otherwise noted)
Characteristic Symbol Conditions Min Typ Max Unit
Operating Supply Voltage V
P
T
A
= −40°C to +85°C 2.5 − 5.5 V
Supply Quiescent Current I
dd
V
P
= 3.6 V, R
L
= 8.0
V
P
= 5.5 V, No Load
V
P
from 2.5 V to 5.5 V, No Load
T
A
= −40°C to +85°C
−
−
−
−
2.5
3.1
−
−
−
−
−
4.5
mA
Shutdown Current I
sd
Vp = 4.2 V, T
A
= +25°C − 0.5
A
Vp = 5.5 V, T
A
= +25°C
Vp = 2.5 V to 5.5 V
T
A
= −40°C to +85°C
−
−
−
0.8
−
−
−
−
1.4
A
SD Voltage High V
sdih
1.2 − − V
SD Voltage Low V
sdil
− − 0.4 V
GS Voltage High V
gsih
1.2 − − V
GS Voltage Low V
gsil
− − 0.4 V
Differential Input Resistance R
in
G = 6 dB − 150 −
k
G = 12 dB − 75 −
k
Switching Frequency F
SW
Vp = 2.5 V to 5.5 V
T
A
= −40°C to +85°C 200 250 300
kHz
Gain G R
L
= 8.0 , V
GS
= High
5.5 6 6.5 dB
R
L
= 8.0 , V
GS
= Low
11.5 12 12.5 dB
Resistance from SD to Gnd R
SD
200 300 −
k
Output Offset Voltage V
os
T
A
= −40°C to +85°C −25 2.5 +25 mV
Turn On Time T
ON
Vp = 2.5 V to 5.5 V − 9 − ms
Turn Off Time T
OFF
Vp = 2.5 V to 5.5 V − 5 − ms
Thermal Shutdown Temperature Tsd − 160 − °C
Output Noise Voltage Vn Vp = 3.6 V
F = 20Hz to 20kHz
No weighting filter
A weighting filter
−
−
−
63
40
−
−
−
Vrms
RMS Output Power Po R
L
= 8 , f = 1 kHz, THD+N < 1%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
−
−
−
−
−
0.32
0.48
0.7
0.97
1.38
−
−
−
−
−
W
R
L
= 8 , f = 1 kHz, THD+N < 10%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
−
−
−
−
−
0.4
0.59
0.87
1.19
1.7
−
−
−
−
−
W
RMS Output Power Po R
L
= 4 , f = 1 kHz, THD+N < 1%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
−
−
−
−
−
0.49
0.72
1.06
1.62
2.12
−
−
−
−
−
W
R
L
= 4 , f = 1 kHz, THD+N < 10%
Vp = 2.5 V
Vp = 3.0 V
Vp = 3.6 V
Vp = 4.2 V
Vp = 5.0 V
−
−
−
−
−
0.6
0.9
1.33
2.0
2.65
−
−
−
−
−
W
NCP2821
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS (Limits apply for T
A
= +25°C unless otherwise noted)
Characteristic UnitMaxTypMinConditionsSymbol
Total Harmonic Distortion + Noise THD+N
Vp = 5.0 V, R
L
= 8 ,
f = 1 kHz, Pout = 0.25 W
Vp = 3.6 V, R
L
= 8 ,
f = 1 kHz, Pout = 0.25 W
−
−
0.05
0.09
−
−
%
Efficiency
R
L
= 8 , f = 1 kHz
Vp = 5 V, Pout = 1.2 W
Vp = 3.6 V, Pout = 600 mW
−
−
91
90
−
−
%
R
L
= 4 , f = 1 kHz
Vp = 5 V, Pout = 2 W
Vp = 3.6 V, Pout = 600 mW
−
−
82
81
−
−
%
Common Mode Rejection Ratio CMRR Vp = 2.5 V to 5.5 V, G = 6 dB
V
ic
= 0.5 V to Vp − 0.8 V
Vp = 3.6 V, V
ic
= 1 V
pp
G = 6 dB, f = 1 kHz
G = 12 dB, f = 1 kHz
−62
−59
−53
dB
Power Supply Rejection Ratio PSRR
Vp
ripple_pk−pk
= 200 mV, R
L
= 8 ,
Inputs AC grounded, Vp = 3.6 V
f = 217 Hz
f = 1 kHz
−
−63
−63
−
−
dB
Figure 2. Test Setup for Graphs
OUTM
OUTP
GND
R
i
INP
INM
VP
R
i
C
i
C
i
+
−
+
−
4.7 F
+
−
Audio Input
Signal
Load
30 kHz
Low Pass
Filter
Measurement
Input
Power
Supply
NCP2821
NOTES:
1. Unless otherwise noted, C
i
= 100 nF and R
i
= 150 k. Thus, the gain setting is 2 V/V and the cutoff frequency of the
input high pass filter is set to 10 Hz. Input capacitors are shorted for CMRR measurements.
2. To closely reproduce a real application case, all measurements are performed using the following loads:
R
L
= 8 means Load = 15 H + 8 + 15 H
R
L
= 4 means Load = 15 H + 4 + 15 H
Very low DCR 15 H inductors (50 m) have been used for the following graphs. Thus, the electrical load
measurements are performed on the resistor (8 or 4 ) in differential mode.
3. For Efficiency measurements, the optional 30 kHz filter is used. An RC low−pass filter is selected with
(100 , 47 nF) on each PWM output.
NCP2821
http://onsemi.com
6
TYPICAL CHARACTERISTICS
0
10
20
30
40
50
60
70
80
90
0 0.5 1.0 1.5
EFFICIENCY %
P
out
(W)
160
0 0.5 1.0
DIE TEMPERATURE (°C)
P
out
(W)
V
p
= 5 V
R
L
= 4
NCP2821
Class AB
1.5 2
.0
140
120
100
80
60
40
20
60
0 0.1 0.2
DIE TEMPERATURE (°C)
P
out
(W)
V
p
= 3.6 V
R
L
= 8
NCP2821
Class AB
0.3 0.4
55
50
45
40
35
30
25
20
20
30
40
50
60
70
80
90
100
0 0.2 0.4
DIE TEMPERATURE (°C)
P
out
(W)
V
p
= 5 V
R
L
= 8
NCP2821
Class AB
Figure 3. Efficiency vs. P
out
V
p
= 5 V, R
L
= 8 , f = 1 kHz
Figure 4. Die Temperature vs. P
out
V
p
= 5 V, R
L
= 8 , f = 1 kHz @ T
A
= +25°C
Figure 5. Efficiency vs. P
out
V
p
= 3.6 V, R
L
= 8 , f = 1 kHz
Figure 6. Die Temperature vs. P
out
V
p
= 3.6 V, R
L
= 8 , f = 1 kHz @ T
A
= +25°C
Figure 7. Die Temperature vs. P
out
V
p
= 5 V, R
L
= 4 , f = 1 kHz @ T
A
= +25°C
Figure 8. Efficiency vs. P
out
V
p
= 5 V, R
L
= 4 , f = 1 kHz
0
10
20
30
40
50
60
70
80
90
100
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
EFFICIENCY (%)
P
out
(W)
V
p
= 3.6 V
R
L
= 8
NCP2821
Class AB
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1.0
EFFICIENCY (%)
P
out
(W)
V
p
= 5 V
R
L
= 8
NCP2821
Class AB
0.6 0.8 1.0 1.2 1
.4
0.5 0.6 0
.7
2.0 2.5
NCP2821
V
p
= 5 V
R
L
= 4
Class AB
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

NCP2821FCT1G

Mfr. #:
Buy NCP2821FCT1G
Manufacturer:
ON Semiconductor
Description:
IC AMP AUDIO D 2.65W 9-FLIPCHIP
Lifecycle:
New from this manufacturer.
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