LM4950TS/NOPB National Semiconductor, LM4950TS/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM4950TS/NOPB
• Description: IC AMP AUDIO PWR 7.5W AB TO263-9
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4950TS/NOPB

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 7.5W x 1 @ 8 Ohm; 3.1W x 2 @ 4 Ohm
• Voltage - Supply: 9.6 V ~ 16 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: TO-263-9 (9 leads + tab)
• Amplifier Class: AB
• No. Of Channels: 2
• Output Power: 3.1W
• Supply Voltage Range: 9.6V To 16V
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: TO-263
• Rohs Compliant: Yes
• For Use With: LM4950TSBD - BOARD EVALUATION LM4950TS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM4950TS; *LM4950TS/NOPB; LM4950TS

I
I
V
V
V
T
TSD
P
THD+N
e
X
PSRR
I
DD
SD
OL
OS
WU
OS
SDIH
SDIL
O
TALK
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics V
The following specifications apply for V
25˚C.
Note 1: All voltages are measured with respect to the GND pin, unless otherwise specified.
Note 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 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 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
in Figure 1) with V
heatsink surface area.
Note 4: Human body model, 100pF discharged through a 1.5 kΩ resistor.
Note 5: Machine Model, 220pF–240pF discharged through all pins.
Supply Voltage (pin 6, referenced
to GND, pins 4 and 5)
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Symbol
pins 3 and 7
pins 1, 2, 8, and 9
DD
Quiescent Power Supply Current
Shutdown Current
Offset Voltage
Shutdown Voltage Input High
Shutdown Voltage Input Low
Wake-up Time
Thermal Shutdown Temperature
Output Power
Total Harmomic Distortion + Noise
Output Noise
Channel Separation
Power Supply Rejection Ratio
Output Current Limit
= 12V, R
L
DMAX
= 4Ω stereo operation the total power dissipation is 3.65W. θ
Parameter
= (T
JMAX
− T
−0.3V to V
DD
A
) / θ
−65˚C to +150˚C
Internally limited
= 12V, A
JA
−0.3V to 9.5V
DD
or the given in Absolute Maximum Ratings, whichever is lower. For the LM4950 typical application (shown
(Notes 1, 2)
DD
= 12V
V
+ 0.3V
2000V
18.0V
= 0dB (SE) or 6dB (BTL) unless otherwise specified. Limits apply for T
200V
V
V
V
C
f = 1kHz
R
THD+N = 1%
R
P
R
P
R
A-Weighted Filter, V
Input Referred
f
R
R
V
R
V
IN
IN
SHUTDOWN
IN
O
O
RIPPLE
IN
B
L
L
L
L
L
L
L
= 1kHz, P
= 8Ω
= 4Ω SE, Single Channel,
= 8Ω BTL, THD+N = 10%
= 4Ω SE
= 4Ω, SE
= 4Ω
= 8Ω, BTL
= 10µF
= 2.5Wrms; f = 1kHz;
= 2.5Wrms; A
= 0V, I
= 0V, RL = 8Ω
= 0V, R
(Notes 1, 2)
= 200mV
3
O
L
Conditions
= GND (Note 9)
Operating Ratings
= 0A, No Load
O
= 500mΩ
Junction Temperature
Thermal Resistance
Temperature Range
Supply Voltage
= 1W, SE Mode
θ
θ
θ
θ
T
JC
JA
JC
JA
MIN
V
p-p
JA
= 10; f = 1kHz;
(TS) (Note 3)
(TA) (Note 3)
(TS)
(TA)
, f = 1kHz,
IN
= 20˚C/W for both TO263 and TO220 packages mounted to 16in
≤ T
= 0V,
A
≤ T
JMAX
MAX
, θ
JA
, and the ambient temperature, T
(Note 6)
Typical
0.05
0.14
440
170
3.1
7.5
16
40
10
76
70
70
5
5
LM4950
(Notes 7, 8)
−40˚C ≤ T
V
Limit
9.6V ≤ V
150
190
2.0
0.4
3.0
DD
30
80
30
56
/2
A
. The maximum
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DD
A
20˚C/W
20˚C/W
mA (max)
mV (max)
µA (max)
˚C (max)
≤ 85˚C
dB (min)
˚C (min)
(Limits)
V (max)
V (max)
W (min)
4˚C/W
4˚C/W
V (min)
150˚C
≤ 16V
Units
ms
µV
dB
%
A
A
2
=