PAM8320RDR

A PRODUCT LINE OF DIODES INCORPORATED PAM8320 20W Mono Class D Audio Amplifier Description Pin Assignments The PAM8320 is an efficient 20W mono Class-D audio power amplifier, designed to drive speakers as low as 4Ω in a bridge-tiedload configuration. Due to the low power dissipation and high efficiency of up to 95%, the device can be used without any external heat sink whilst playing music. SO-16EP New Product The PAM8320 features short circuit protection, thermal shutdown, over voltage protection and under voltage lock-out. AGND 6 VCLAMP 7 PVCCP 8 The PAM8320 is available in a SO-16EP package. Features Applications                Operates from 4.5V to 15V 20W into 4Ω BTL Load from 12V Supply Single-Ended Analog Input No Pop Noise for Start-up and Shut-down Sequences Internal Oscillator (No External Components Required) High Efficient Class-D Operation Eliminates Need for Heat Sinks Thermal and Short-Circuit Protection with Auto Recovery Over Voltage Protection and Under Voltage Lock-out Space-Saving Surface-Mount SO-16EP Package Pb-Free Package PAM832 0 XXXY WWLL PVCCN 1 SDN 2 IN 3 VCM 4 AGND 5 16 15 14 13 12 11 10 9 PGNDN OUTN BSN AVCC MUTE BSP OUTP PGNDP PC Speaker Blue Tooth Speaker Home Sound Systems Active Speakers Docking stations Typical Applications Circuit PAM8320 Document number: DS36610 Rev. 1 - 2 1 of 11 www.diodes.com October 2013 © Diodes Incorporated A PRODUCT LINE OF DIODES INCORPORATED PAM8320 New Product Pin Descriptions Pin Name I/O/P 1 PVCCN P Power supply for negative H-bridge, not connected to PVCCP or AVCC Description 2 SDN I Shutdown signal for IC (low=shutdown, high=operational). TTL logic levels with compliance to AVCC 3 IN I Audio input 4 VCM O Reference for analog cells 5,6 AGND P Analog ground for digital/analog cells in core 7 VCLAMP P Internally generated voltage supply for bootstrap. Not to be used as a supply or connected to any component other than the decoupling capacitor. 8 PVCCP P Power supply for positive H-bridge, not connected to PVCCN or AVCC 9 PGNDP P Power ground for positive H-bridge 10 OUTP O Positive BTL output 11 BSP I/O Bootstrap terminal for high-side drive of positive BTL output 12 MUTE I A logic high on this pin disables the outputs. A low on this pin enables the outputs. TTL logic levels with compliance to AVCC 13 AVCC P High-voltage analog power supply 14 BSN I/O Bootstrap terminal for high-side drive of negative BTL output 15 OUTN O Negative BTL output 16 PGNDN P Power ground for negative H-bridge Functional Block Diagram PAM8320 Document number: DS36610 Rev. 1 - 2 2 of 11 www.diodes.com October 2013 © Diodes Incorporated A PRODUCT LINE OF DIODES INCORPORATED PAM8320 Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) New Product Parameter Rating Unit Supply Voltage (VCC) 18 V Logic Input Voltage (SDN, MUTE) -0.3 to VCC+0.3 V Analog Input Voltage (IN) -0.3 to 5.5 V Storage Temperature -65 to +150 °C Maximum Junction Temperature +150 Junction to ambient thermal resistance 40 °C °C/W Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Symbol Parameter Min Max Unit VCC Supply Voltage 4.5 15 V TA Operating Ambient Temperature Range -40 +85 °C TJ Junction Temperature Range -40 +125 °C Electrical Characteristics (@TA = +25°C, VCC = 12V, Gain = 20dB, RL = L(33μH) + R + L(33μH), unless otherwise noted.) Symbol PARAMETER Test Conditions MIN TYP MAX Units |VOS| Class-D output offset voltage(measured differently) Vi=0V, Av=20dB — 20 100 mV ICC(q) Quiescent supply current SDN=3.0V, MUTE=0V, No Load — 15 30 mA ICC(MUTE) Quiescent supply current in mute mode MUTE=2.0V, No load — 8 20 mA ICC(SDN) Quiescent current in shutdown mode SDN=0.5V, No load — 20 40 uA Drain-source on-state resistance IO=0.5A — 150 — mΩ Power Supply Rejection Ratio Vripple=200mVpp, f=1kHz,gain=20dB — -60 — dB Output Power at 1% THD+N f=1kHz — 15 — Output Power at 10% THD+N f=1kHz — 20 — Total harmonic distortion + noise f=1kHz, PO=7W — 0.05 — % Output integrated noise floor 20Hz to 22kHz, A-weighted, Gain=20dB — 300 — uV SNR Signal-to-noise ratio Max output at THD+N