LM4936MHX/NOPB National Semiconductor, LM4936MHX/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM4936MHX/NOPB
• Description: IC AMP AUDIO PWR 2.2W AB 28TSSOP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4936MHX/NOPB

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.2W x 2 @ 3 Ohm; 110mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Bass Boost, Depop, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Total Harmonic Distortion: 0.06@8Ohm@0.4W%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 57dB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Package Type: TSSOP EP
• For Use With: LM4936MHEVAL - BOARD EVALUATION LM4936MH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4936MHX

N
X
talk
OUT
Electrical Characteristics for Bridged Mode Operation
The following specifications apply for V
Symbol
Note 3: The θ
Note 4: The θ
through 21 8mil vias.
Note 5: The θ
Note 6: The θ
Note 7: All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical application as shown
in Figure 1.
Note 8: When driving 3Ω loads from a 5V supply the LM4936MH must be mounted to the circuit board and forced-air cooled. The demo board shown in the
datasheet has planes for heat sinking. The top layer plane is 1.05 in
has a 3.32 in
various locations.
Note 9: When driving 4Ω loads from a 5V supply the LM4936MH must be mounted to the circuit board. The demo board shown in the datasheet has planes for heat
sinking. The top layer plane is 1.05 in
The planes are electrically GND and interconnected through six 15 mil vias directly under the package and eight 28 mil vias in various locations.
Note 10: 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 11: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
can be found in the Absolute Maximum Ratings section above.
Note 12: Human body model, 100pF discharged through a 1.5kΩ resistor.
Note 13: Machine Model, 220pF – 240pF discharged through all pins.
Note 14: Typicals are measured at 25˚C and represent the parametric norm.
Note 15: Limits are guaranteed to National’s AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are guaranteed by design, test, or
statistical analysis.
Note 16: I
to V
Note 17: PCB design will affect Crosstalk performance.
DD
or lower.
2
C/SPI V
2
JA
JA
JA
Output Noise
Channel Separation (Note 17)
JA
(2143mm
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 2in
given is for an MXA28A package whose exposed-DAP is soldered to a 2in
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 1in
given is for an MXA28A package whose exposed-DAP is not soldered to any copper.
DD
must not be larger than V
2
) plane. The planes are electrically GND and interconnected through six 15 mil vias directly under the package and eight 28 mil vias in
Parameter
DMAX
2
= (T
(675mm
JMAX
2
− T
), the inner two layers each have a 1.03 in
DD
DD
A
at any time or damage to the IC may occur. During power up and power down, I
)/θ
= 5V, unless otherwise noted. Limits apply for T
JA
. For the LM4936, T
A-Wtd Filter
f = 1kHz, C
2
(675mm
JMAX
B
2
), the inner two layers each have a 1.03 in
Conditions
5
= 1µF
= 150˚C, and the typical junction-to-ambient thermal resistance for each package
2
(667mm
2
piece of 1 ounce printed circuit board copper on a bottom side layer
2
) plane and the bottom layer has a 3.32 in
JMAX
2
2
piece of 1 ounce printed circuit board copper.
piece of 1 ounce printed circuit board copper.
, θ
JA
, and the ambient temperature T
(Note 14)
A
(Notes 7, 10) (Continued)
Typical
= 25˚C.
36
63
2
(667mm
LM4936
2
C/SPI V
2
(Note 15)
) plane and the bottom layer
Limit
DD
2
must remain equal
(2143mm
A
. The maximum
www.national.com
(Limits)
Units
2
) plane.
µV
dB