TPA005D12 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER SLOS241B – AUGUST 1999 – REVISED MARCH 2000 DCA PACKAGE (TOP VIEW) NOT RECOMMENDED FOR NEW DESIGNS D D D D D D D D D D Choose TPA2000D2 For Upgrade Extremely Efficient Class-D Stereo Operation Drives L and R Channels 2-W BTL Output Into 4 Ω 5-W Peak Music Power Fully Specified for 5-V Operation Low Quiescent Current Shutdown Control . . . 0.2 µA Thermally-Enhanced PowerPAD SurfaceMount Packaging Thermal, Over-Current, and Under-Voltage Protection description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 SHUTDOWN MUTE AGND LINN LINP LCOMP AGND VDD LPVDD LOUTP LOUTP PGND PGND LOUTN LOUTN LPVDD NC NC NC AGND PVDD VCP CP3 CP2 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 COSC AGND AGND RINN RINP RCOMP FAULT0 FAULT1 RPVDD ROUTP ROUTP PGND PGND ROUTN ROUTN RPVDD NC NC NC V2P5 PVDD PGND CP4 CP1 The TPA005D12 is a monolithic power IC stereo audio amplifier that operates in extremely efficient Class-D operation, using the high switching speed of power DMOS transistors to replicate the analog input signal through high-frequency switching of the output stage. This allows the TPA005D12 to be configured as a bridge-tied load (BTL) amplifier capable of delivering up to 2 W of continuous average power into a 4-Ω load at 0.5% THD+N NC – No internal connection from a 5-V power supply in the high-fidelity audio frequency range (20 Hz to 20 kHz). A BTL configuration eliminates the need for external coupling capacitors on the output. A chip-level shutdown control is provided to limit total quiescent current to 0.2 µA, making the device ideal for battery-powered applications. A full range of protection circuitry is included to increase device reliability: thermal, over-current, and under-voltage shutdown, with two status feedback terminals for use when any error condition is encountered. The high switching frequency of the TPA005D12 allows the output filter to consist of three small capacitors and two small inductors per channel. The high switching frequency also allows for good THD+N performance. The TPA005D12 is offered in the thermally enhanced 48-pin PowerPAD TSSOP surface-mount package (designator DCA). AVAILABLE OPTIONS TA PACKAGED DEVICES TSSOP† (DCA) – 40°C to 125°C TPA005D12DCA † The DCA package is available in left-ended tape and reel. To order a taped and reeled part, add the suffix R to the part number (e.g., TPA005D12DCAR). 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. PowerPAD is a trademark of Texas Instruments Incorporated. Copyright 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 PVDD GATE DRIVE VDD GENERATOR COSC VCP RAMP GENERATOR RCOMP 1.5 V 10 kΩ 10 kΩ + _ RINP RINN RPVDD AGND RPVDD V2P5 VCP-UVLO DETECT GATE DRIVE + PVDD VCP PVDD RPVDD TRIPLER CHARGE PUMP GATE DRIVE CP1 CP2 NOTE A: LPVDD, RPVDD, VDD, and PVDD are externally connected. AGND and PGND are externally connected. CP3 CP4 VCP PVDD ROUTN ROUTP PGND _ PVDD OVER-I DETECT RPVDD PVCC Template Release Date: 7–11–94 + _ LPVDD TPA005D12 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 LCOMP PVDD MUTE SLOS241B – AUGUST 1999 – REVISED MARCH 2000 VCP SHUTDOWN CONTROL and STARTUP LOGIC + _ LINN FAULT1 FAULT0 THERMAL DETECT 10 kΩ LINP VDD LPVDD GATE DRIVE 1.5 V 10 kΩ LOUTN LOUTP LPVDD PVDD schematic 2 LPVDD VCP TPA005D12 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER SLOS241B – AUGUST 1999 – REVISED MARCH 2000 Terminal Functions TERMINAL NAME DESCRIPTION NO. AGND 3, 7, 20, 46, 47 COSC 48 Capacitor I/O for ramp generator. Adjust the capacitor size to change the switching frequency. CP1 25 First diode node for charge pump CP2 24 First inverter switching node for charge pump CP3 23 Second diode node for charge pump CP4 26 Second inverter switching node for charge pump FAULT0 42 Logic level fault0 output signal. Lower order bit of the two fault signals with open drain output. FAULT1 41 Logic level fault1 output signal. Higher order bit of the two fault signals with open drain output. LCOMP 6 Compensation capacitor terminal for left-channel Class-D amplifier LINN 4 Class-D left-channel negative input 5 Class-D left-channel positive input LINP Analog ground for headphone and Class-D analog sections LOUTN 14, 15 Class-D amplifier left-channel negative output of H-bridge LOUTP 10, 11 Class-D amplifier left-channel positive output of H-bridge LPVDD 9, 16 Class-D amplifier left-channel power supply MUTE 2 NC 17, 18, 19, 30, 31, 32 Active-low logic-level mute input signal. When MUTE is held low, the selected amplifier is muted. When MUTE is held high, the device operates normally. When the Class-D amplifier is muted, the low-side output transistors are turned on, shorting the load to ground. No connection PGND 12, 13 PGND 27 Power ground for left-channel H-bridge only PGND 36, 37 Power ground for right-channel H-bridge only PVDD RCOMP 21, 28 Power ground for charge pump only 43 VDD supply for charge-pump and gate-drive circuitry Compensation capacitor terminal for right-channel Class-D amplifier RINN 45 Class-D right-channel negative input RINP 44 Class-D right-channel positive input RPVDD ROUTN 33, 40 Class-D amplifier right-channel power supply 34, 35 Class-D amplifier right-channel negative output of H-bridge ROUTP 38, 39 Class-D amplifier right-channel positive output of H-bridge SHUTDOWN 1 Active-low logic-level shutdown input signal. When SHUTDOWN is held low, the device goes into shutdown mode. When SHUTDOWN is held at logic high, the device operates normally. V2P5 29 2.5-V internal reference bypass VCP 22 Storage capacitor terminal for charge pump VDD 8 VDD bias supply for analog circuitry. This terminal needs to be well filtered to prevent degrading the device performance. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 TPA005D12 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER SLOS241B – AUGUST 1999 – REVISED MARCH 2000 Class-D amplifier faults Table 1. Class-D Amplifier Fault Table FAULT 0† FAULT 1† 1 1 No fault. — The device is operating normally. 0 1 Charge pump under-voltage lock-out (VCP-UV) fault. — All low-side transistors are turned on, shorting the load to ground. Once the charge pump voltage is restored, normal operation resumes, but FAULT1 is still active. FAULT1 is cleared by cycling MUTE, SHUTDOWN, or the power supply. 1 0 Over-current fault. — The output transistors are all switched off. This causes the load to be in a high-impedance state. This is a latched fault and is cleared by cycling MUTE, SHUTDOWN, or the power supply. 0 0 Thermal fault. — All the low-side transistors are turned on, shorting the load to ground. This is latched fault and is cleared by cycling MUTE, SHUTDOWN, or the power supply. DESCRIPTION † These logic levels assume a pullup to PVDD from the open-drain outputs. absolute maximum ratings over operating free-air temperature range, TC = 25°C (unless otherwise noted)‡ Supply voltage, VDD (PVDD, LPVDD, RPVDD, VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Input voltage, VI (SHUTDOWN, MUTE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 5.8 V Output current, IO (FAULT0, FAULT1), open drain terminated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 mA Charge pump voltage, VCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PVDD + 15 V Continuous H-bridge output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A Pulsed H-Bridge output current, each output, Imax (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 A Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Ratings Table Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 150°C Operating case temperature range, TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 125°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. NOTE 1: Pulse duration = 10 ms, duty cycle 2% v 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 TA = 125°C POWER RATING DCA 5.6 W 44.8 mW/°C 3.6 W 2.9 W 1.1 mW † Please see the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report (literature number SLMA002), for more information on the PowerPAD package. The thermal data was measured on a PCB layout based on the information in the section entitled Texas Instruments Recommended Board for PowerPAD on page 33 of the before mentioned document. recommended operating conditions MIN Supply voltage, PVDD, LPVDD, RPVDD, VDD 4.5 High-level input voltage, VIH MAX 5.5 4.25 Low-level input voltage, VIL 1 PWM frequency 150 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT V V 0.75 Audio inputs, LINN, LINP, RINN, RINP, differential input voltage 4 NOM 450 V VRMS kHZ TPA005D12 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER SLOS241B – AUGUST 1999 – REVISED MARCH 2000 electrical characteristics, Class-D amplifier, VDD = PVDD = LPVDD = RPVDD = 5 V, RL = 4 Ω, TC = 25°C, See Figure 1 (resistive load) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PSRR Power supply rejection ratio VDD = PVDD = LPVDD = RPVDD = 4.5 V to 5.5 V IDD IDD(MUTE) Supply current No load, 25 35 mA Supply current, mute mode MUTE = 0 V 3.9 10 mA IDD(SD) IIH Supply current, shutdown mode SHUTDOWN = 0 V 0.2 10 µA High-level input current 1 µA IIL Low-level input current VIH = 5.3 V VIL = – 0.3 V –1 µA rDS(on) Total static drain-to-source on-state resistance (low-side plus high-side FETs) ID = 2 A 900 mΩ rDS(on) Matching, high-side to high-side, low-side to low-side, same channel ID = 0.5 A 40 No filter 700 95% dB 99% operating characteristics, Class-D amplifier, VDD = PVDD = LPVDD = RPVDD = 5 V, RL = 4 Ω, TC = 25°C, See Figure 1 (unless otherwise noted) PARAMETER PO THD+N TEST CONDITIONS Total harmonic distortion plus noise f = 1 kHz 0.2% RL = 8 Ω 80% Gain MAX 95% Noise floor Dynamic range Crosstalk f = 1 kHz Frequency response bandwidth, post output filter, – 3 dB UNIT W 25 Left/right channel gain matching BOM TYP 2 PO = 1 W , PO = 1 W, Efficiency AV MIN RMS output power, THD = 0.5%, per channel dB 99% –55 dBV 70 dB –55 20 Maximum output power bandwidth dB 20 000 Hz 20 kHz thermal resistance PARAMETER RθJP TEST CONDITIONS MIN TYP Thermal resistance, junction-to-pad Thermal shutdown temperature 165 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MAX UNIT 10 °C/W °C 5 TPA005D12 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER SLOS241B – AUGUST 1999 – REVISED MARCH 2000 PARAMETER MEASUREMENT INFORMATION FAULT0 FAULT1 1 PVDD PVDD 5V 2 3 9,16 SHUTDOWN LOUTN MUTE 4 1 µF 43 470 pF 0.22 µF 1 µF 4Ω 1 µF 4Ω 10,11 15 µH LINP LINN 29 LCOMP 1 µF RCOMP 470 pF VDD 48 15 µH LPVDD V2P5 6 14,15 0.22 µF LOUTP 5 41 AGND 1 µF Balanced Differential Input Signal 42 8 COSC 470 pF CP1 1 µF 44 Balanced Differential Input Signal 45 47 nF CP2 RINP CP3 RINN 33,40 7,20,46,47 12,13,27,36,37 5V 21, 28 24 23 47 nF 1 µF 5V 25 CP4 RPVDD AGND (see Note A) VCP 26 22 2.2 µF PGND (see Note A) PVDD ROUTN 34,35 15 µH 0.22 µF 0.22 µF ROUTP 38,39 15 µH Figure 1. 5-V, 4-Ω Test Circuit, Class-D Amplifier 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPA005D12 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER SLOS241B – AUGUST 1999 – REVISED MARCH 2000 MECHANICAL DATA DCA (R-PDSO-G**) PowerPAD PLASTIC SMALL-OUTLINE PACKAGE 48 PINS SHOWN 0,27 0,17 0,50 48 0,08 M 25 Thermal Pad (See Note D) 6,20 6,00 8,30 7,90 0,15 NOM Gage Plane 1 24 0,25 A 0°– 8° 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 48 56 64 A MAX 12,60 14,10 17,10 A MIN 12,40 13,90 16,90 DIM 4073259/A 01/98 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. The package thermal performance may be enhanced by bonding the thermal pad to an external thermal plane. This pad is electrically and thermally connected to the backside of the die and possibly selected leads. E. Falls within JEDEC MO-153 PowerPAD is a trademark of Texas Instruments. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. Customers are responsible for their applications using TI components. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright 2000, Texas Instruments Incorporated