TPA2000D2PWPR

TPA2000D2 www.ti.com SLOS291F – MARCH 2000 – REVISED MARCH 2007 2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER • FEATURES • • • • • Modulation Scheme Optimized to Operate Without a Filter 2 W Into 3-Ω Speakers (THD+N< 0.4%) < 0.08% THD+N at 1 W, 1 kHz, Into 4-Ω Load Extremely Efficient Third Generation 5-V Class-D Technology: – Low Supply Current (No Filter) . . . 8 mA – Low Supply Current (Filter) . . . 15 mA – Low Shutdown Current . . . 1 µA – Low Noise Floor . . . 56 µVRMS – Maximum Efficiency Into 3 Ω, 65-70% – Maximum Efficiency Into 8 Ω, 75-85% – 4 Internal Gain Settings . . . 8-23.5 dB – PSRR . . . -77 dB Integrated Depop Circuitry • Short-Circuit Protection (Short to Battery, Ground, and Load) -40°C to 85°C Operating Temperature Range PW OR PWP PACKAGE (TOP VIEW) PGND LOUTN GAIN0 PVDD LINN AGND COSC RINN PVDD SHUTDOWN ROUTN PGND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 PGND LOUTP BYPASS PVDD LINP VDD ROSC RINP PVDD GAIN1 ROUTP PGND DESCRIPTION The TPA2000D2 is the third generation 5-V class-D amplifier from Texas Instruments. Improvements to previous generation devices include: lower supply current, lower noise floor, better efficiency, four different gain settings, smaller packaging, and fewer external components. The most significant advancement with this device is its modulation scheme that allows the amplifier to operate without the output filter. Eliminating the output filter saves the user approximately 30% in system cost and 75% in PCB area. The TPA2000D2 is a monolithic class-D power IC stereo audio amplifier, using the high switching speed of power MOSFET transistors. These transistors reproduce the analog signal through high-frequency switching of the output stage. The TPA2000D2 is configured as a bridge-tied load (BTL) amplifier capable of delivering greater than 2 W of continuous average power into a 3-Ω load at less than 1% THD+N from a 5-V power supply in the high fidelity range (20 Hz to 20 kHz). With 1 W being delivered to a 4-Ω load at 1 kHz, the typical THD+N is less than 0.08%. A BTL configuration eliminates the need for external coupling capacitors on the output. Low supply current of 8 mA makes the device ideal for battery-powered applications. Protection circuitry increases device reliability: thermal, over-current, and under-voltage shutdown. Efficient class-D modulation enables the TPA2000D2 to operate at full power into 3-Ω loads at an ambient temperature of 85°C. AVAILABLE OPTIONS (1) TA –40°C to 85°C (1) (2) PACKAGED DEVICE TSSOP (PW) TSSOP (PWP) (2) TPA2000D2PW TPA2000D2PWP For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. The PWP package is available taped and reeled. To order a taped and reeled part, add the suffix R to the part number (e.g., TPA2000D2PWPR). Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000–2007, Texas Instruments Incorporated TPA2000D2 www.ti.com SLOS291F – MARCH 2000 – REVISED MARCH 2007 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. VDD AGND PVDD VDD Gain Adjust RINN + _ Gate Drive ROUTN _ + PGND + _ PVDD _ Gain Adjust RINP Gate Drive + ROUTP PGND SHUTDOWN 2 GAIN1 GAIN0 Gain Biases and References Start-Up Protection Logic Ramp Generator COSC ROSC BYPASS Thermal OC Detect OC Detect VDD ok PVDD LINP Gain Adjust + _ Gate Drive _ + PGND + _ PVDD _ LINN LOUTP Gain Adjust + Gate Drive LOUTN PGND 2 Submit Documentation Feedback TPA2000D2 www.ti.com SLOS291F – MARCH 2000 – REVISED MARCH 2007 TERMINAL FUNCTION TERMINAL NAME NO. I/O DESCRIPTION AGND 6 - Analog ground BYPASS 22 I Tap to voltage divider for internal midsupply bias generator used for analog reference. COSC 7 I A capacitor connected to this terminal sets the oscillation frequency in conjunction with ROSC. For proper operation, connect a 220 pF capacitor from COSC to ground. GAIN0 3 I Bit 0 of gain control (TTL logic level) GAIN1 15 I Bit 1 of gain control (TTL logic level) LINN 5 I Left channel negative differential audio input LINP 20 I Left channel positive differential audio input LOUTN 2 O Left channel negative audio output LOUTP 23 O Left channel positive audio output PGND PVDD 1, 24 - Power ground for left channel H-bridge 12, 13 - Power ground for right channel H-bridge 4, 21 - Power supply for left channel H-bridge 9, 16 - Power supply for right channel H-bridge RINN 8 I Right channel negative differential audio input RINP 17 I Right channel positive differential audio input ROSC 18 I A resistor connected to this terminal sets the oscillation frequency in conjunction with COSC. For proper operation, connect a 120 kΩ resistor from ROSC to ground. ROUTN 11 O Right channel negative audio output ROUTP 14 O Right channel positive output SHUTDOWN 10 I Places the amplifier in shutdown mode if a TTL logic low is placed on this terminal; normal operation if a TTL logic high is placed on this terminal. VDD 19 - Analog power supply ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) UNIT VDD, PVDD Supply voltage VI Input voltage -0.3 V to 6 V -0.3 V to VDD+0.3 V Continuous total power dissipation See Dissipation Rating Table TA Operating free-air temperature range -40°C to 85°C TJ Operating junction temperature range -40°C to 150°C Tstg Storage temperature range -65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (1) 260°C Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING PW 1.04 W 8.34 mW/°C 0.67 W 0.54 W PWP 2.7 W 21.8 mW/°C 1.7 W 1.4 W Submit Documentation Feedback 3 TPA2000D2 www.ti.com SLOS291F – MARCH 2000 – REVISED MARCH 2007 RECOMMENDED OPERATING CONDITIONS MIN TYP MAX 4.5 5.5 UNIT VDD, PVDD Supply voltage VIH High-level input voltage GAIN0, GAIN1, SHUTDOWN VIL Low-level input voltage GAIN0, GAIN1, SHUTDOWN ROSC Oscillator resistance 120 COSC Oscillator capacitance 220 fs Switching frequency 200 300 kHz TA Operating free-air temperature -40 85 °C 2 V V 0.8 V kΩ pF ELECTRICAL CHARACTERISTICS TA = 25°C, VDD = PVDD = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN | VOO | Output offset voltage (measured differentially) VI = 0 V PSRR Power supply rejection ratio VDD=PVDD = 4.5 V to 5.5 V IIH High-level input current VDD=PVDD = 5.5 V, VI = VDD = PVDD IIL Low-level input current VDD=PVDD = 5.5 V, VI = 0 V IDD Supply current No filter (with or without speaker load) IDD Supply current With filter, L = 22 µH, C = 1 µF IDD(SD) Supply current, shutdown mode TYP MAX 25 mV 1 µA -77 8 UNIT dB 1 µA 10 mA 15 mA 1 15 TYP MAX µA OPERATING CHARACTERISTICS TA = 25°C, VDD = PVDD = 5 V, RL = 4 Ω, Gain = 8 dB (unless otherwise noted) PARAMETER TEST CONDITIONS PO Output power THD = 0.1%, f = 1 kHz, RL = 3 Ω THD+N Total harmonic distortion plus noise PO = 1 W, f = 20 Hz to 20 kHz BOM Maximum output power bandwidth THD = 5% kSVR Supply ripple rejection ratio f = 1 kHz, C(BYPASS) = 0.4 µF SNR Signal-to-noise ratio Integrated noise floor ZI MIN 2 20 20 Hz to 20 kHz, No input dB 87 dBV 56 µV >20 kΩ 4 AMPLIFIER GAIN (dB) INPUT IMPEDANCE (kΩ) TYP TYP 0 0 8 104 0 1 12 74 1 0 17.5 44 1 1 23.5 24 Submit Documentation Feedback kHz -60 Table 1. Gain Settings GAIN0 W