Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- KEY SPECIFICATIONS
- DESCRIPTION
- Absolute Maximum Ratings
- Operating Ratings
- Electrical Characteristics VDD = 5V
- Electrical Characteristics VDD = 3V
- Electrical Characteristics VDD = 2.6V
- External Components Description
- Typical Performance Characteristics
- Application Information
- BRIDGED CONFIGURATION EXPLANATION
- EXPOSED-DAP PACKAGE PCB MOUNTING CONSIDERATIONS FOR THE LM4890LD
- POWER DISSIPATION
- POWER SUPPLY BYPASSING
- SHUTDOWN FUNCTION
- SHUTDOWN OUTPUT IMPEDANCE
- PROPER SELECTION OF EXTERNAL COMPONENTS
- AUDIO POWER AMPLIFIER DESIGN
- LM4890 SOIC DEMO BOARD ARTWORK
- LM4890 VSSOP DEMO BOARD ARTWORK
- PCB LAYOUT GUIDELINES
- GENERAL MIXED SIGNAL LAYOUT RECOMMENDATIONS
- Revision History
- Page 1

LM4890
SNAS138L –SEPTEMBER 2001–REVISED MAY 2013
www.ti.com
Absolute Maximum Ratings
(1)(2)
Supply Voltage
(3)
6.0V
Storage Temperature −65°C to +150°C
Input Voltage −0.3V to V
DD
+0.3V
Power Dissipation
(4)
Internally Limited
ESD Susceptibility
(5)
2000V
Junction Temperature 150°C
Thermal Resistance θ
JC
(SOIC) 35°C/W
θ
JA
(SOIC) 150°C/W
θ
JA
(8 Bump DSBGA,
(6)
) 220°C/W
θ
JA
(9 Bump DSBGA,
(6)
) 180°C/W
θ
JC
(VSSOP) 56°C/W
θ
JA
(VSSOP) 190°C/W
θ
JA
(WSON) 220°C/W
Soldering Information See AN-1112 (SNVA009) "DSBGA Wafers Level Chip
Scale Package."
See AN-1187 (SNOA401) "Leadless Leadframe
Package (WSON)."
(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 V
DD
exceeds 6V (to a max of 8V V
DD
), then most of the excess current will flow through the ESD
protection circuits. If the source impedance limits the current to a max of 10 ma, then the part will be protected. If the part is enabled
when V
DD
is greater than 5.5V and less than 6.5V, no damage will occur, although operational 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 T
JMAX
, θ
JA
, and the ambient temperature
T
A
. The maximum allowable power dissipation is P
DMAX
= (T
JMAX
–T
A
)/θ
JA
or the number given in Absolute Maximum Ratings, whichever
is lower. For the LM4890, see power derating curves for additional information.
(5) Human body model, 100 pF discharged through a 1.5 kΩ resistor.
(6) All bumps have the same thermal resistance and contribute equally when used to lower thermal resistance. All bumps must be
connected to achieve specified thermal resistance.
Operating Ratings
Temperature Range T
MIN
≤ T
A
≤ T
MAX
−40°C ≤ T
A
≤ 85°C
Supply Voltage 2.2V ≤ V
DD
≤ 5.5V
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