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LM4901 Datasheet(PDF) 3 Page - Texas Instruments

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Part # LM4901
Description  1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM4901 Datasheet(HTML) 3 Page - Texas Instruments

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LM4901
www.ti.com
SNAS139F – DECEMBER 2001 – REVISED DECEMBER 2001
Absolute Maximum Ratings
(1) (2)
Supply Voltage(3)
6.0V
Storage Temperature
−65°C to +150°C
Input Voltage
−0.3V to VDD +0.3V
Power Dissipation(4)(5)
Internally Limited
ESD Susceptibility(6)
2000V
ESD Susceptibility(7)
200V
Junction Temperature
150°C
Thermal Resistance
θJC (VSSOP)
56°C/W
θJA (VSSOP)
190°C/W
θJA (WSON)
63°C/W (8)
θJC (WSON)
12°C/W(8)
Soldering Information
See AN-1187 "Leadless Leadframe
Package (WSON)" (SNOA401)
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(2)
If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3)
If the product is in Shutdown mode and VDD exceeds 6V (to a max of 8V VDD), then most of the excess current will flow through the
ESD protection circuits. If the source impedance limits the current to a max of 10mA, then the device will be protected. If the device is
enabled when VDD is greater than 5.5V and less than 6.5V, no damage will occur, although operation life will be reduced. Operation
above 6.5V with no current limit will result in permanent damage.
(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 LM4901, see power derating curves for additional information.
(5)
Maximum power dissipation in the device (PDMAX) occurs at an output power level significantly below full output power. PDMAX can be
calculated using Equation 2 shown in the Application Information section. It may also be obtained from the power dissipation graphs.
(6)
Human body model, 100 pF discharged through a 1.5 k
Ω resistor.
(7)
Machine Model, 220 pF–240 pF discharged through all pins.
(8)
The Exposed-DAP of the NGZ0010B package should be electrically connected to GND or an electrically isolated copper area. The
LM4901NGZ demo board (views featured in the Application Information section) has the Exposed-DAP connected to GND with a PCB
area of 86.7mils x 585mils (2.02mm x 14.86mm) on the copper top layer and 550mils x 710mils (13.97mm x 18.03mm) on the copper
bottom layer.
Operating Ratings
Temperature Range TMIN ≤ TA ≤ TMAX
−40°C ≤ TA ≤ 85°C
Supply Voltage
2.0V
≤ VDD ≤ 5.5V
Electrical Characteristics VDD = 5V
(1) (2)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA = 25°C.
LM4901
Units
Parameter
Test Conditions
(Limits)
Typical(3)
Limit(4)(5)
VIN = 0V, Io = 0A, No Load
3
7
mA (max)
IDD
Quiescent Power Supply Current
VIN = 0V, Io = 0A, 8Ω Load
4
10
mA (max)
ISD
Shutdown Current
VSD = VSD Mode
0.1
2.0
µA (max)
VSDIH
Shutdown Voltage Input High
VSD MODE = VDD
1.5
V (min)
VSDIL
Shutdown Voltage Input Low
VSD MODE = VDD
1.3
V (max)
VSDIH
Shutdown Voltage Input High
VSD MODE = GND
1.5
V (min)
(1)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3)
Typicals are measured at 25°C and represent the parametric norm.
(4)
Limits are ensured to TI's AOQL (Average Outgoing Quality Level).
(5)
Datasheet min/max specification limits are ensured by design, test, or statistical analysis.
Copyright © 2001, Texas Instruments Incorporated
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