Datasheet Texas Instruments LM4951SD/NOPB — 数据表

LM4951
www.ti.com SNAS244N – AUGUST 2004 – REVISED MAY 2013 LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier
Check for Samples: LM4951 FEATURES DESCRIPTION The LM4951 is an audio power amplifier primarily
designed for demanding applications in Portable
Handheld devices. It is capable of delivering 1.8W
mono BTL to an 8Ω load, continuous average power,
with less than 1% distortion (THD+N) from a 7.5VDC
power supply. 1 2 Click and Pop Circuitry Eliminates Noise
during Turn-On and Turn-Off Transitions
Low Current, Active-Low Shutdown Mode
Low Quiescent Current
Thermal Shutdown Protection
Unity-Gain Stable
External Gain Configuration Capability APPLICATIONS Portable Handheld Devices up to 9V
Cell Phone
PDA KEY SPECIFICATIONS Wide Voltage Range: 2.7V to 9 V
Quiescent Power Supply Current (VDD =
7.5V): 2.5mA (typ)
Power Output BTL at 7.5V, 1% THD: 1.8 W (typ)
Shutdown Current: 0.01ВµA (typ)
Fast Turn on Time: 25ms (typ) Boomer audio power amplifiers were designed
specifically to provide high quality output power with a
minimal amount of external components. The …