Power Amplifier. HWD2171 Datasheet

HWD2171 Amplifier. Datasheet pdf. Equivalent

Part HWD2171
Description 3W Audio Power Amplifier
Feature HWD2171 3W Audio Power Amplifier with Shutdown Mode General Description Key Specifications The H.
Manufacture CSMSC
Datasheet
Download HWD2171 Datasheet



HWD2171
HWD2171
3W Audio Power Amplifier with Shutdown Mode
General Description
Key Specifications
The HWD2171 is a mono bridged audio power amplifier ca- n PO at 10% THD+N, 1kHz
pable of delivering 3W of continuous average power into a n HWD2171LD: 3, 4load
3W (typ), 2.5W (typ)
3load with less than 10% THD when powered by a 5V
power supply (Note 1). To conserve power in portable appli-
cations, the HWD2171’s micropower shutdown mode Q(I =
0.6µA, typ) is activated when VDD is applied to the SHUT-
DOWN pin.
audio power amplifiers are designed specifically to provide
n All other HWD2171 packages: 8loa
1.5W (typ)
n Shutdown current
0.6µA (typ)
n Supply voltage range
2.0V to 5.5V
n THD at 1kHz at 1W continuous average output power
into 8
0.5% (max)
high power, high fidelity audio output. They require
Featuresfew external components and operate on low supply volt-
ages from 2.0V to 5.5V. Since the HWD2171 does not require n No output coupling capacitors, bootstrap capacitors, or
output coupling capacitors, bootstrap capacitors, or snubber
snubber circuits required
networks, it is ideally suited for low-power portable systems n Unity-gain stable
that require minimum volume and weight.
n LLP, MSOP, SO, or DIP packaging
Additional HWD2171 features include thermal shutdown pro- n External gain configuration capability
tection, unity-gain stability, and external gain set.
n Pin compatible with the HWD2161
Note 1: An HWD2171LD that has been properly mounted to a circuit board will
Applicationsdeliver 3W into 3(at 10% THD). The other package options for the HWD2171
will deliver 1.5W into 8(at 10% THD). See the Application Information
sections for further information concerning the HWD2171LD, HWD2171MM, n Portable computers
HWD2171M, and the HWD2171N.
n Desktop computers
n Low voltage audio systems
Typical Application
Connection Diagram
MSOP, Small Outline, and DIP Package
Top View
Order Number HWD2171MM, HWD2171M, or HWD2171N
LLP Package
FIGURE 1. Typical Audio Amplifier Application Circuit
Top View
Order Number HWD2171LD
1



HWD2171
Absolute Maximum Ratings (Note 2)
Supply Voltage
6.0V
Supply Temperature
−65˚C to +150˚C
Input Voltage
Power Dissipation (Note 4)
−0.3V to VDD to +0.3V
Internally Limited
ESD Susceptibility (Note 5)
5000V
ESD Susceptibility (Note 6)
250V
Junction Temperature
150˚C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See AN-450 Surface Mounting and their Effects on
Product Reliabilityfor other methods of
soldering surface mount devices.
θJC (typ) — M08A
θJA (typ) — M08A
θJC (typ) — N08E
θJA (typ) — N08E
θJC (typ) — MUA08A
θJA (typ) — MUA08A
θJC (typ) — LDC08A
θJA (typ) — LDC08A
Operating Ratings
Temperature Range
TMIN TA TMAX
Supply Voltage
35˚C/W
140˚C/W
37˚C/W
107˚C/W
56˚C/W
210˚C/W
4.3˚C/W
56˚C/W (Note 9)
−40˚C TA 85˚C
2.0V VDD 5.5V
Electrical Characteristics(Notes 2, 3)
The following specifications apply for VDD = 5V and RL = 8unless otherwise specified. Limits apply for TA = 25˚C.
Sym-
bol
VDD
IDD
ISD
VOS
Po
Parameter
Supply Voltage
Quiescent Power Supply
Current
Shutdown Current
Output Offset Voltage
Output Power
THD+N Total Harmonic
Distortion+Noise
PSRR
Power Supply Rejection
Ratio
Conditions
VIN = 0V, Io = 0A
Min
(Note 7)
2.0
VPIN1 = VDD
VIN = 0V
THD = 1%, f = 1kHz
HWD2171LD,LR= 3(Note 10)
HWD2171LD,LR= 4(Note 10)
HWD2171,LR= 8(Note 10)
THD+N = 10%, f = 1kHz
HWD2171LD,LR= 3(Note 10)
HWD2171LD,LR= 4(Note 10)
HWD2171,LR= 8(Note 10)
20Hz f 20kHz, AVD = 2
HWD2171LD,LR= 4, P O = 1.6W
HWD2171,LR= 8, P O = 1W
VDD = 4.9V to 5.1V
HWD2171
Typical
(Note 8)
6.5
Limit
(Note 7)
5.5
10.0
0.6 2
5.0 50
2.38
2
1.2
3
2.5
1.5
0.13
0.25
60
Units
(Limits)
V
mA
µA
mV
W
W
%
dB
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 3: All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature TA. The maximum
allowable power dissipation is PDMAX = (TJMAX–TA)/θJA or the number given in Absolute Maximum Ratings, whichever is lower. For the HWD2171, TJMAX = 150˚C. For
the θJA’s for different packages, please see the Application Information section or the Absolute Maximum Ratings section.
Note 5: Human body model, 100pF discharged through a 1.5kresistor.
Note 6: Machine Model, 220pF–240pF discharged through all pins.
Note 7: Typicals are specified at 25˚C and represent the parametric norm.
Note 8: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 9: The given θJA is for an HWD2171 packaged in an LDC08A with the Exposed–DAP soldered to an exposed 1in2 area of 1oz printed circuit board copper.
Note 10: When driving 3or 4loads from a 5V supply, the HWD2171LD must be mounted to a circuit board.
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