The LM4752 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4 load, or 7W per channel into 8 using a single 24V supply at 10% THD+N.

The LM4752 is specifically designed for single supply operation and a low external component count. The gain and bias resistors are integrated on chip, resulting in a 11W stereo amplifier in a compact 7 pin TO-220 package. High output power levels at both 20V and 24V supplies and low external component count offer high value for compact stereo and TV applications. A simple mute function can be implemented with the addition of a few external components.

• Drives 4 and 8 Loads
• Internal Gain Resistors (AV = 34 dB)
• Minimum External Component Requirement
• Single Supply Operation
• Internal Current Limiting
• Internal Thermal Protection
• Compact 7-lead TO-220 Package
• Low Cost-Per-Watt
• Wide Supply Range 9V - 40V

Key Specifications

• Output Power at 10% THD+N with 1kHz into 4 VCC = 24V 11 W (typ)
• Output Power at 10% THD+N with 1kHz into 8 VCC = 24V 7 W (typ)
• Closed Loop Gain 34 dB(typ)
• PO at 10% THD+N @ 1 kHz into 4 Single-Ended DDPAK Package VCC = 12V 2.5 W (typ)
• PO at 10% THD+N @ 1kHz into 8 Bridged DDPAK Package VCC = 12V 5 W (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)
• 11
• THD + N @ 1 kHz (%)
• 0.08
• Iq (Typ) (mA)
• 5.25
• Control interface
• Hardware
• Closed/open loop
• Closed
• Analog supply (Min) (V)
• 9.6
• Analog supply (Max) (V)
• 16
• PSRR (dB)
• 50
• Operating temperature range (C)
• 0 to 70

LM4752的完整型号有：LM4752TS/NOPB，以下是这些产品的关键参数及官网采购报价：

LM4752TS/NOPB，工作温度：0 to 70，封装：DDPAK/TO-263 (KTW)-7，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LM4752TS/NOPB的批量USD价格：1.273（1000+）

LM4752 TINA-TI Reference Design

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