LM4990MMX/NOPB National Semiconductor, LM4990MMX/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM4990MMX/NOPB
• Description: IC AMP AUDIO PWR 2W MONO 8MSOP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4990MMX/NOPB

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 2W x 1 @ 4 Ohm
• Voltage - Supply: 2.2 V ~ 5.5 V
• Features: Depop, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 2x1@4OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.2@500mW%
• 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: MSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4990MMX

. A SD_MODE select pin determines the Shutdown Mode for the LD and MH packages, whether it is an Asserted High or an Asserted Low device, to activate
shutdown.
. The SD_MODE select pin is not available with the MM and ITL packaged devices. Shutdown occurs only with a low assertion.
Typical Application
Note: MM and ITL packaged devices are active low only; Shutdown Mode pin is internally tied to GND.
Package
Shutdown Mode
Typical Power Output at 5V,
1% THD+N
FIGURE 2. Typical Audio Amplifier Application Circuit (ITL and MM)
FIGURE 1. Typical Audio Amplifier Application Circuit (LD and MH)
Selectable
(R
L
2W
LD
= 4Ω)
3
Selectable
(R
L
MH
2W
= 4Ω)
(R
1.25W
L
Low
MM
= 8Ω)
200510C4
20051001
(R
1.25W
L
Low
ITL
= 8Ω)
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