The LM4952 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4? single-ended load with less than 1% THD+N when powered by a 12V_DC power supply.

Eliminating external feedback resistors, an internal, DC-controlled, volume control allows easy and variable gain adjustment.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4952 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4952 features a low-power consumption active-low shutdown mode. Additionally, the LM4952 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4952 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

• Pop & Click Circuitry Eliminates Noise During Turn-on and Turn-off Transitions
• Low Current, Active-low Shutdown Mode
• Low Quiescent Current
• Stereo 3.8W Output, RL = 4?
• DC-controlled Volume Control
• Short Circuit Protection

Key Specifications

• Quiscent Power Supply Current 18mA (typ)
• POUT @ VDD = 12V, RL = 4Ω, 10% THD+N 3.8W (typ)
• Shutdown current 55μA (typ)

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• Audio input type
• Analog Input
• Architecture
• Class-AB
• Speaker channels (Max)
• Stereo
• Power stage supply (Max) (V)
• 16
• Power stage supply (Min) (V)
• 9.6
• Load (Min) (ohms)
• 4
• Output power (W)
• 3.1
• THD + N @ 1 kHz (%)
• 0.08
• Iq (Typ) (mA)
• 9
• Control interface
• Hardware
• Closed/open loop
• Closed
• Analog supply (Min) (V)
• 9.6
• Analog supply (Max) (V)
• 16
• PSRR (dB)
• 89
• Operating temperature range (C)
• -40 to 85

LM4952的完整型号有：LM4952TS/NOPB、LM4952TSX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM4952TS/NOPB，工作温度：-40 to 85，封装：DDPAK/TO-263 (KTW)-9，包装数量MPQ：45个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LM4952TS/NOPB的批量USD价格：1.469（1000+）

LM4952TSX/NOPB，工作温度：-40 to 85，封装：DDPAK/TO-263 (KTW)-9，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LM4952TSX/NOPB的批量USD价格：1.224（1000+）

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