LM4991LDX National Semiconductor, LM4991LDX Datasheet - Page 9

• 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
Shutdown Hysteresis Voltage
Output Power, V
V
Supply Voltage, R
DD
Power Dissipation vs
Output Power vs
= 3V, SD Mode = V
DD
L
= 2.6V
= 4Ω
DD
20074063
20074073
20074067
9
(Continued)
Shutdown Hysteresis Voltage
Shutdown Hysteresis Voltage
V
V
DD
Supply Voltage, R
DD
= 2.6V, SD Mode = V
= 5V, SD Mode = V
Output Power vs
L
= 8Ω
DD
DD
20074072
20074074
20074068
www.national.com