Datasheet

LM4938
www.ti.com SNAS245B –FEBRUARY 2005–REVISED MAY 2013
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)(2)
Supply Voltage 6.0V
Storage Temperature -65°C to +150°C
Input Voltage −0.3V to V
DD
+0.3V
Power Dissipation
(3)
Internally limited
ESD Susceptibility
(4)
2000V
ESD Susceptibility
(5)
200V
Junction Temperature 150°C
Vapor Phase (60 sec.) 215°C
Soldering Information Small Outline Package
Infrared (15 sec.) 220°C
θ
JC
(typ) - PWP0028A 2°C/W
θ
JA
(typ) - PWP0028A (HTSSOP)
(6)
41°C/W
θ
JA
(typ) - PWP0028A (HTSSOP)
(7)
54°C/W
θ
JA
(typ) - PWP0028A (HTSSOP)
(8)
59°C/W
θ
JA
(typ) - PWP0028A(HTSSOP)
(9)
93°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 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 Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) 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
. For the LM4938, T
JMAX
= 150°C, and the typical junction-to-
ambient thermal resistance for each package can be found in the Absolute Maximum Ratings
()()
section above.
(4) Human body model, 100pF discharged through a 1.5kΩ resistor.
(5) Machine Model, 200pF – 220pF discharged through all pins.
(6) The θ
JA
given is for an PWP0028A package whose HTSSOP is soldered to an exposed 2in
2
piece of 1 ounce printed circuit board
copper.
(7) The θ
JA
given is for an PWP0028A package whose HTSSOP is soldered to a 2in
2
piece of 1 ounce printed circuit board copper on a
bottom side layer through 21 8mil vias.
(8) The θ
JA
given is for an PWP0028A package whose HTSSOP is soldered to an exposed 1in
2
piece of 1 ounce printed circuit board
copper.
(9) The θ
JA
given is for an PWP0028A package whose HTSSOP is not soldered to any copper.
Operating Ratings
Temperature Range T
MIN
≤ T
A
≤T
MAX
−20°C ≤TA ≤ 85°C
Supply Voltage 2.7V≤ V
DD
≤ 5.5V
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