LM4732TA/NOPB National Semiconductor, LM4732TA/NOPB Datasheet - Page 12

• Manufacturer Part Number: LM4732TA/NOPB
• Manufacturer: National Semiconductor

Specifications of LM4732TA/NOPB

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 50x2@8OhmW
• Audio Amplifier Function: Speaker
• Input Offset Voltage: 10@±29VmV
• Input Bias Current: 200nA
• Total Harmonic Distortion: 0.02@4Ohm@1W%
• Single Supply Voltage (typ): 18V
• Dual Supply Voltage (typ): ±9V
• Power Supply Requirement: Single/Dual
• Power Dissipation: 125W
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 89dB
• Single Supply Voltage (min): 20V
• Single Supply Voltage (max): 80V
• Dual Supply Voltage (min): ±10V
• Dual Supply Voltage (max): ±40V
• Operating Temp Range: -20C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 27 +Tab
• Package Type: TO-220
• Lead Free Status / Rohs Status: Compliant

Typical Performance Characteristics
(Continued)
THD+N vs Output Power
THD+N vs Output Power
±
±
22V, Bridge Mode (Note 16)
29V, Parallel Mode (Note 17)
R
= 8Ω, 80kHz BW
R
= 4Ω, 80kHz BW
L
L
200724F2
200724E7
Output Power vs
Output Power vs
Supply Voltage, Bridge Mode (Note 16)
Supply Voltage, Parallel Mode (Note 17)
f = 1kHz, R
= 8Ω, 80kHz BW
f = 1kHz, R
= 4Ω, 80kHz BW
L
L
200724E0
200724E1
Note 16: Bridge mode graphs were taken using the demo board and inverting the signal to the channel B input.
Note 17: Parallel mode graphs were taken using the demo board and connecting each output through a 0.1Ω/3W resistor to the load.
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