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LM48520 bảng dữ liệu(PDF) 4 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  Boosted Stereo Class D Audio Power Amplifier with Output Speaker Protection and Spread Spectrum
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LM48520, LM48520TLBD
SNAS367B – FEBRUARY 2008 – REVISED MARCH 2008
www.ti.com
Table 2. Pin Descriptions (continued)
Pin Designator
Pin Name
Pin Function
B4
INL-
Inverting left channel input
B5
INL+
Non-inverting left channel input
C1
V1
Amplifier supply voltage. Connect to PV1.
C2
BstSD
Regulator active low shutdown
C3
GND
Ground
C4
Gain0
Gain setting input 0
C5
PV1
Amplifier H-bridge power supply. Connect to V1.
D1
AmpSD
Amplifier active low shutdown
D2
OUTR+
Non-inverting right channel output
D3
NC
No connect
D4
OUTL+
Non-inverting left channel output
D5
Gain1
Gain setting input 1
E1
VLimit
Set to control output clipping level
E2
OUTR-
Inverting right channel output
E3
PGND
Power ground
E4
OUTL-
Inverting left channel output
E5
NC
No connect
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)
Supply Voltage (VDD, V1)
6V
Storage Temperature
−65°C to +150°C
Input Voltage
−0.3V to VDD + 0.3V
Power Dissipation (2)
Internally limited
ESD Susceptibility (3)
2000V
ESD Susceptibility (4)
200V
Junction Temperature
150°C
Thermal Resistance
θJA (TL)
40.5 °C/W
(1)
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.
(2)
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 given in Absolute Maximum Ratings, whichever is
lower.
(3)
Human body model, 100pF discharged through a 1.5k
Ω resistor.
(4)
Machine Model, 220pF–240pF discharged through all pins.
Operating Ratings
Temperature Range
TMIN ≤ TA ≤ TMAX
−40°C ≤ TA ≤ +85°C
Supply Voltage (VDD)
2.7V
≤ VDD ≤ 5.0V
Amplifier Voltage (V1 )
Not under Boosted Condition
2.4V
≤ V1 ≤ 5.5V
Amplifier Voltage (PV1 )
Under Boosted Condition
3.0V
≤ PV1 ≤ 5.0V
4
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Links: LM48520 LM48520TLBD


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