Texas Instruments LM4652
the LM4652 power MOSFET provides a high efficiency, Class D subwoofer amplifier solution. The LM4651 is a fully integrated conventional pulse width modulator driver IC. The IC contains short circuit, under voltage, over modulation, and thermal shut down protection circuitry.| Part No. | LM4652 |
|---|---|
| Datasheet | LM4652 Download |
| Manufacturer |  Texas Instruments |
| Description | Audio Power Amplifier 170W Class D Audio Power Amplifier Solution |
| Buy | Stock & Price |
FEATURES
1●23 Conventional Pulse Width Modulation.
● Externally Controllable Switching Frequency.
● 50kHz to 200kHz Switching Frequency Range.
● Integrated Error Amp and Feedback Amp.
● Turn−on Soft Start and Under Voltage Lockout.
● Over Modulation Protection (Soft Clipping).
● Externally Controllable Output Current Limiting and Thermal Shutdown Protection.
● Self Checking Protection Diagnostic.
APPLICATIONS
● Powered Subwoofers for Home Theater and PC's● Car Booster Amplifier
● Self-powered Speakers KEY SPECIFICATIONS
● Output power into 4Ω with < 10% THD. 170W (Typ)
● THD at 10W, 4Ω, 10 − 500Hz. < 0.3% THD (Typ)
● Maximum efficiency at 125W 85% (Typ)
● Standby attenuation. >100dB (Min)
DESCRIPTION
The IC combination of the LM4651 driver and The LM4651also contains a standby function which shuts down the pulse width modulation minimizing supply current. The LM4652 is a fully integrated H-bridge power MOSFET IC in a TO-220 power package. The LM4652 has a temperature sensor built in to alert the LM4651 when the die temperature of the LM4652 exceeds the threshold.
