NCP2823 ON Semiconductor, NCP2823 Datasheet

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NCP2823

Manufacturer Part Number
NCP2823
Description
High Efficiency 3 W Filterless Class D Audio Amplifier
Manufacturer
ON Semiconductor
Datasheet

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NCP2823 Series
High Efficiency 3W
Filterless Class D Audio
Amplifier
designed for portable electronic devices. NCP2823A is optimized for
8 W operation and NCP2823B can operate with speaker impedance
down to 4.0 W. For Instance, NCP2823B is capable of delivering 3 W
of continuous average power to a 4.0 W from a 5.0 V supply in a
Bridge Tied Load (BTL) configuration. Under the same conditions,
NCP2823A can provide 1.5 W to an 8.0 W BTL load with less than
10% THD+N. For cellular handsets or PDAs it offers space and cost
savings because no output filter is required when using inductive
transducers. With more than 90% efficiency and very low shutdown
current, it increases the lifetime of your battery and drastically lowers
the junction temperature.
technique that lowers output noise and THD. The device allows
independent gain while summing signals from various audio sources.
Thus, in cellular handsets, the earpiece, the loudspeaker and even
melody ringer can be driven with a single NCP2823. Due to its low
26 mV noise floor, A−weighted, clean listening is guaranteed no matter
the load sensitivity.
Features
Typical Applications
© Semiconductor Components Industries, LLC, 2010
February, 2010 − Rev. P0
The NCP2823A/B are cost effective mono audio power amplifiers
NCP2823 processes analog inputs with a pulse width modulation
Optimized PWM Output Stage: Filterless Capability
Externally gain setting
Low consumption: 1.8 mA for NCP2823A
High efficiency: up to 92%
Large Output Power Capability: 2 W @ V
High PSRR: up to −77 dB
Fully Differential Capability: RF immunity
Thermal and Auto recovery Short−Circuit Protection
CMRR (−80 dB) Eliminates Two Input Coupling Capacitors
Pin to Pin compatible with NCP2820 Flip−Chip
These Devices are Pb−Free and are RoHS Compliant
Audio Amplifier for
Cellular Phones
Digital Cameras
Personal Digital Assistant and Portable Media Player
GPS
P
= 5.0 V, 8.0 W
1
See detailed ordering and shipping information on page 10 of
this data sheet.
1.45 mm
1
ORDERING INFORMATION
XXX
A
Y
WW
G
9−PIN FLIP−CHIP CSP
http://onsemi.com
CASE 499AL
FC SUFFIX
= QTA for NCP2823A
= PMA for NCP2823B
= Assembly Location
= Year
= Work Week
= Pb−Free Package
3.7 mm
Publication Order Number:
www.DataSheet4U.com
MARKING
DIAGRAM
A1
NCP2823/D
AYWW
XXXG

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NCP2823 Summary of contents

Page 1

... W from a 5.0 V supply in a Bridge Tied Load (BTL) configuration. Under the same conditions, NCP2823A can provide 1 8.0 W BTL load with less than 10% THD+N. For cellular handsets or PDAs it offers space and cost savings because no output filter is required when using inductive transducers ...

Page 2

R INN i Negative Differential Input R INP i Positive Differential Input INP AGND VOUTN AVDD PVDD PGND INN EN VOUTP (Top View) Figure 1. Pin Description BATTERY ...

Page 3

PIN FUNCTION DESCRIPTION Pin Name Pin Type A1 INP INPUT Positive Differential Input C1 INN INPUT Negative Differential Input B2 PVDD POWER Power Supply: This pin is the power supply of the device. A 4.7 mF ceramic capacitor or larger ...

Page 4

... V ENL ENR EN rising edge EN falling edge ENL NCP2823A 3 600 mW kHz NCP2823B 3 kHz F = 217 Hz, Input ac grounded kHz, Input ac grounded Pout = 600 mW (A. Weighted) P Input shorted together 217 Hz ...

Page 5

... A DD Conditions NCP2823A THD < 3 kHz 2 THD < NCP2823B THD < 3 kHz 2 THD < ...

Page 6

... 5 500 1000 Pout (mW) Figure 3. Efficiency Vs P 100 2 3.6 V 0.1 0.01 10 100 Pout (mW) Figure 5. NCP2823B, THD+N vs Pout 0 2.5 V 0.01 3.6 V 0.001 10 100 1000 FREQUENCY (Hz) Figure 7. THD+N vs Frequency 100 P out 10 1 0.1 0.01 1500 2000 10 Figure 4 ...

Page 7

TYPICAL OPERATING CHARACTERISTICS 0.1 0.01 0.001 10 100 1000 FREQUENCY (Hz) Figure 9. THD+N vs Frequency 0 2.5 V 0.01 4.2 V ...

Page 8

TYPICAL OPERATING CHARACTERISTICS 0 −20 − rip pp −60 − 200 mV rip −100 −120 10 100 1000 FREQUENCY (Hz) Figure 15. CMRR vs Frequency −10 −20 −30 −40 −50 V ...

Page 9

... H−Bridge. When the current is higher than 2A for the NCP2823B or 1A for the NCP2823A, the H−Bridge is positioned in high impedance. When the short circuit is removed or the current is lower, the NCP2823 goes back to normal operation. This protection avoids over current due to a bad assembly (Output shorted together ground) ...

Page 10

... Tape and Reel Packaging Specifications Brochure, BRD8011/D. Demo Board Available: NCP2823AGEVB/D and NCP2823BGEVB/D evaluation board configure the device in typical application. Package WCSP − 9 − 1.45 x 1.45 mm (Pb−Free) WCSP − ...

Page 11

... CROWNS OF SOLDER BALLS. MILLIMETERS DIM MIN MAX A 0.540 0.660 A1 0.210 0.270 A2 0.330 0.390 D 1.450 BSC E 1.450 BSC b 0.290 0.340 e 0.500 BSC D1 1.000 BSC E1 1.000 BSC ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP2823/D ...

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