LM4991LDX National Semiconductor, LM4991LDX Datasheet - Page 8

• Manufacturer Part Number: LM4991LDX
• Manufacturer: National Semiconductor

Specifications of LM4991LDX

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 3x1@3OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.2@8Ohm@0.5W%
• 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: 64dB
• Single Supply Voltage (min): 2.2V
• 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: 8
• Package Type: LLP EP
• Lead Free Status / Rohs Status: Not Compliant

Typical Performance Characteristics
(Continued)
Power Supply Rejection Ratio (PSRR) vs Frequency
Power Supply Rejection Ratio (PSRR) vs Frequency
V
= 2.6V, R
= 8Ω, input 10Ω terminated
V
= 2.6V, R
= 8Ω, Input Floating
DD
L
DD
L
20074057
20074058
Noise Floor, 5V, 8Ω
Open Loop Frequency Response, 5V
80kHz Bandwidth, Input to GND
20074059
20074060
Power Dissipation vs
Power Dissipation vs
Output Power, V
= 5V
Output Power, V
= 3V
DD
DD
20074061
20074062
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