0
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
会员中心
创作中心
发布
  • 发文章

  • 发资料

  • 发帖

  • 提问

  • 发视频

创作活动
TPA2005D1DRBQ1

TPA2005D1DRBQ1

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    VDFN8_EP

  • 描述:

    Amplifier IC 1-Channel (Mono) Class D 8-SON (3x3)

  • 数据手册
  • 价格&库存
TPA2005D1DRBQ1 数据手册
Product Folder Sample & Buy Support & Community Tools & Software Technical Documents TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 TPA2005D1-Q1 1.4-W Mono Filter-Free Class-D Audio Power Amplifier 1 Features • • 1 • • • • – 3 mm × 3 mm SON package (DRB) – 3 mm × 5 mm MSOP-PowerPAD™ Package (DGN) Qualified for Automotive Applications AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 3 (DRB and DGN package non T-suffix): –40°C to +85°C Ambient Operating Temperature Range – Device Temperature Grade 2 (DGN package T-suffix): –40°C to +105°C Ambient Operating Temperature Range – Device HBM Classification Level 2 – Device CDM Classification Level C5 1.4 W Into 8 Ω From a 5-V Supply at THD = 10% (Typical) Maximum Battery Life and Minimum Heat – Efficiency With an 8-Ω Speaker: – 84% at 400 mW – 79% at 100 mW – 2.8-mA Quiescent Current – 0.5-μA Shutdown Current Only Three External Components – Optimized PWM Output Stage Eliminates LC Output Filter – Internally Generated 250-kHz Switching Frequency Eliminates Capacitor and Resistor – Improved PSRR (–71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator – Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor – Improved CMRR Eliminates Two Input Coupling Capacitors Space-Saving Packages 2 Applications • • • • • Cluster Head Unit Telematics Emergency Call (eCall) Noise Generator 3 Description The TPA2005D1-Q1 device is a 1.4-W high-efficiency filter-free class-D audio power amplifier in a SON or MSOP-PowerPAD package that requires only three external components. Features like 84% efficiency, –71-dB PSRR at 217 Hz, improved RF-rectification immunity, and 15mm2 total PCB area make TPA2005D1-Q1 ideal for low-power audio applications in infotainment and cluster. The device allows for independent gain control by summing the signals from each function while minimizing noise to only 48 µVRMS. Additionally, the TPA2005D1-Q1 device offers fast start-up time of 9 ms with minimal pop and has short circuit and thermal protection. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) MSOP-PowerPAD (8) 3.00 mm × 3.00 mm TPA2005D1-Q1 SON (8) 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Application Circuit To Battery Internal Oscillator + RI – RI CS IN– _ Differential Input VDD PWM VO+ H– Bridge VO– + IN+ GND SHUTDOWN Bias Circuitry TPA2005D1 Copyright © 2016, Texas Instruments Incorporated 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 9 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Device Comparison Table..................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 3 4 7.1 7.2 7.3 7.4 7.5 7.6 7.7 4 4 4 4 5 5 6 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Operating Characteristics.......................................... Typical Characteristics .............................................. Parameter Measurement Information ................ 11 Detailed Description ............................................ 12 9.1 Overview ................................................................. 12 9.2 Functional Block Diagram ....................................... 12 9.3 Feature Description................................................. 12 9.4 Device Functional Modes........................................ 16 10 Application and Implementation........................ 19 10.1 Application Information.......................................... 19 10.2 Typical Application ................................................ 19 11 Power Supply Recommendations ..................... 22 11.1 Power Supply Decoupling Capacitors................... 22 12 Layout................................................................... 23 12.1 Layout Guidelines ................................................. 23 12.2 Layout Example .................................................... 24 13 Device and Documentation Support ................. 25 13.1 13.2 13.3 13.4 13.5 Documentation Support ........................................ Community Resource............................................ Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 25 25 25 25 25 14 Mechanical, Packaging, and Orderable Information ........................................................... 25 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision D (December 2015) to Revision E • Page Changed the θJA value and resulting value maximum ambient-temperature equation in the Efficiency and Thermal Information section ............................................................................................................................................................... 13 Changes from Revision C (March 2010) to Revision D Page • Added Applications, ESD Rating table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section. .............................................................. 1 • Deleted Ordering Information table. See POA in the back of document. .............................................................................. 1 • Added RL Load resistance, to the Abs Max Ratings Table .................................................................................................... 4 • Changed Storage temperature From: -65°C to 85°C To: -65°C to 150°C ............................................................................. 4 • Deleted Dissipation Ratings table and added Thermal Information table. ............................................................................ 4 • Updated Efficiency and Thermal Information ...................................................................................................................... 13 2 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 5 Device Comparison Table DEVICE NUMBER SPEAKER CHANNELS SPEAKER AMP TYPE OUTPUT POWER (W) PSRR (dB) SUPPLY MIN (V) SUPPLY MAX (V) TPA2005D1-Q1 Mono Class D 1.4 75 2.5 5.5 TPA2000D1-Q1 Mono Class D 2 77 2.7 5.5 6 Pin Configuration and Functions DRB Package 8-Pin SON With Exposed Thermal Pad Top View DGN Package 8-Pin MSOP-PowerPAD Top View SHUTDOWN 1 8 V NC 2 7 GND IN+ 3 6 V IN– 4 5 V SHUTDOWN 1 NC 2 Thermal Pad 8 V 7 GND 6 V 5 V   O– DD   O– Thermal IN+ 3 IN– 4 Pad DD       O+   O+ The thermal pad of the DRB and DGN packages must be electrically and thermally connected to a ground plane. Pin Functions PIN NAME NO. I/O DESCRIPTION IN– 4 I Negative differential input IN+ 3 I Positive differential input VDD 6 I Power supply VO+ 5 O Positive BTL output GND 7 I High-current ground VO– 8 O Negative BTL output SHUTDOWN 1 I Shutdown terminal (active low logic) NC 2 — No internal connection — Must be soldered to a grounded pad on the PCB. Thermal Pad Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 3 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com 7 Specifications 7.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) VDD Supply voltage (2) VI Input voltage RL MIN MAX UNIT In active mode –0.3 6 V In SHUTDOWN mode –0.3 7 V –0.3 VDD + 0.3 V 2.5 ≤ VDD ≤ 4.2 V Load resistance V Ω 3.2 4.2 < VDD ≤ 6 V 6.4 Non T-suffix –40 85 Ω T-suffix –40 105 TA Operating free-air temperature TJ Operating junction temperature –40 150 °C Tstg Storage temperature –65 150 °C (1) (2) °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. For the MSOP (DGN) package option, the maximum VDD should be limited to 5 V if short-circuit protection is desired. 7.2 ESD Ratings VALUE V(ESD) (1) Electrostatic discharge Human-body model (HBM), per AEC Q100-002 (1) ±2000 Charged-device model (CDM), per AEC Q100-011 ±1000 UNIT V AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification. 7.3 Recommended Operating Conditions MIN MAX 2.5 5.5 V SHUTDOWN 2 VDD V Low-level input voltage SHUTDOWN 0 0.7 V RI Input resistor Gain ≤ 20 V/V (26 dB) 15 VIC Common-mode input voltage VDD = 2.5 V, 5.5 V, CMRR ≤ –49 dB 0.5 VDD – 0.8 Non T-suffix –40 85 T-suffix –40 105 VDD Supply voltage VIH High-level input voltage VIL TA Operating free-air temperature UNIT kΩ V °C 7.4 Thermal Information TPA2005D1-Q1 THERMAL METRIC (1) DRB (SON) DGN (MSOP PowerPAD) 8 PINS 8 PINS UNIT RθJA Junction-to-ambient thermal resistance 49.5 57 °C/W RθJC(top) Junction-to-case (top) thermal resistance 62.1 53.8 °C/W RθJB Junction-to-board thermal resistance 24.8 33.7 °C/W ψJT Junction-to-top characterization parameter 1.3 1.9 °C/W ψJB Junction-to-board characterization parameter 24.9 33.4 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 6.9 6.4 °C/W (1) 4 For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 7.5 Electrical Characteristics TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS |VOS| Output offset voltage (measured differentially) VI = 0 V, AV = 2 V/V, VDD = 2.5 V to 5.5 V PSRR Power-supply rejection ratio VDD = 2.5 V to 5.5 V CMRR Common-mode rejection ratio VDD = 2.5 V to 5.5 V, VIC = VDD / 2 to 0.5 V, VIC = VDD / 2 to VDD – 0.8 V |IIH| High-level input current VDD = 5.5 V, VI = 5.8 V |IIL| Low-level input current I(Q) Quiescent current I(SD) Shutdown current rDS(on) Static drain-source on-state resistance f(sw) MIN TYP TA = 25°C MAX 25 mV –75 –55 dB –68 –49 TA = –40°C to 85°C –35 50 VDD = 5.5 V, VI = 0.3 V TA = –40°C to 85°C 4 TA = –40°C to 105°C 12 VDD = 5.5 V, no load 3.4 VDD = 3.6 V, no load 2.8 VDD = 2.5 V, no load 2.2 3.2 0.5 2 TA = –40°C to 85°C V (SHUTDOWN) = 0.8 V, VDD = 2.5 V to 5.5 V 770 590 VDD = 5.5 V 500 V (SHUTDOWN) = 0.8 V Switching frequency VDD = 2.5 V to 5.5 V Gain 2´ μA μA mΩ >1 200 μA mA 2.5 VDD = 3.6 V dB 4.5 TA = –40°C to 105°C VDD = 2.5 V Output impedance in SHUTDOWN UNIT kΩ 250 300 142 kW 150 kW 158 kW 2´ 2´ RI RI RI kHz V V 7.6 Operating Characteristics TA = 25°C, Gain = 2 V/V, RL = 8 Ω (unless otherwise noted) PARAMETER TEST CONDITIONS THD + N= 1%, f = 1 kHz, RL = 8 Ω PO Output power THD + N= 10%, f = 1 kHz, RL = 8 Ω MIN 1.18 VDD = 3.6 V 0.58 VDD = 2.5 V 0.26 VDD = 5 V 1.45 VDD = 3.6 V 0.75 VDD = 2.5 V THD+N Total harmonic distortion plus noise TYP VDD = 5 V MAX UNIT W 0.35 PO = 1 W, f = 1 kHz, RL = 8 Ω VDD = 5 V 0.18% PO = 0.5 W, f = 1 kHz, RL = 8 Ω VDD = 3.6 V 0.19% PO = 200 mW, f = 1 kHz, RL = 8 Ω VDD = 2.5 V 0.20% VDD = 3.6 V –71 dB dB kSVR Supply ripple rejection ratio f = 217 Hz, V(RIPPLE) = 200 mVpp, Inputs ac-grounded with Ci = 2 μF SNR Signal-to-noise ratio PO= 1 W, RL = 8 Ω VDD = 5 V 97 48 A weighting 36 Vn Output voltage noise VDD = 3.6 V, f = 20 Hz to 20 kHz, Inputs ac-grounded with Ci = 2 μF No weighting CMRR Common-mode rejection ratio VIC = 1 Vpp , f = 217 Hz VDD = 3.6 V ZI Input impedance Start-up time from shutdown –63 142 VDD = 3.6 V μVRMS 150 dB 158 9 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 kΩ ms 5 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com 7.7 Typical Characteristics 100 90 RL = 32 W, 33 mH 90 80 RL = 8 W, 33 mH RL = 16 W, 33 mH 60 Efficiency - % Efficiency - % 70 50 40 30 Class-AB, RL = 8 Ω 20 VDD = 5 V, 80 10 RL = 8W, 33mH 70 VDD = 2.5 V, 60 RL = 8W, 33mH 50 40 Class-AB, VDD = 5 V, RL = 8 W 30 20 10 VDD = 3.6 0 0 0 0.1 0.2 0.3 0.4 0.5 0 0.6 0.2 0.4 0.6 0.8 1 1.2 PO - Output Power - W PO - Output Power - W Figure 2. Efficiency vs Output Power Figure 1. Efficiency vs Output Power 90 0.7 Class-AB, V DD = 5 V, RL = 8 W 80 0.6 70 60 PD - Power Dissipation - W Efficiency - % VDD = 4.2 V, RL = 4 W, 33 mH 50 40 30 20 10 Class-AB, VDD = 3.6 V, RL = 8 W 0.5 0.4 0.5 1 1.5 RL = 4 W, 33 mH 0.3 VDD = 3.6 V, RL = 8 W, 33 mH 0.2 0.1 VDD = 5 V, RL = 8 W, 33 mH 0 0 0 VDD = 4.2 V, 0 0.2 0.4 0.6 0.8 1 1.2 PO - Output Power - W PO - Output Power - W Figure 4. Power Dissipation vs Output Power Figure 3. Efficiency vs Output Power 250 300 VDD = 3.6 V 250 Supply Current - mA Supply Current - mA 200 RL = 8 W, 33 mH 150 100 50 150 VDD = 5 V, RL = 8 W, 33 mH 100 VDD = 3.6 V, RL = 8 W, 33 mH 50 RL = 32 W, 33 mH 0 0 0.1 0.2 0.3 0.4 PO - Output Power - W VDD = 2.5 V, RL = 8 W, 33 mH 0 0.5 0.6 0 0.2 0.4 0.6 0.8 1 1.2 PO - Output Power - W Figure 5. Supply Current vs Output Power 6 200 Figure 6. Supply Current vs Output Power Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 3.8 1 3.6 0.9 I (SD) - Shutdown Current - m A I (Q) − Quiescent Current − mA Typical Characteristics (continued) 3.4 RL = 8 W, 33 mH 3.2 3 2.8 No Load 2.6 2.4 0.8 0.7 0.6 0.4 VDD = 3.6 V 0.3 VDD = 5 V 0.2 2.2 0.1 0 2 2.5 3 3.5 4 4.5 5 0 5.5 0.1 0.3 0.4 0.5 0.6 0.7 0.8 Shutdown Voltage - V Figure 7. Quiescent Current vs Supply Voltage Figure 8. Shutdown Current vs Shutdown Voltage 1.6 RL = 8 W f = 1 kHz Gain = 2 V/V 1.4 1.4 1.2 RL = 4 W, f = 1kHz, Gain = 2 V/V 1 PO - Output Power - W 1.2 THD+N = 10% 0.8 THD+N = 10% 1 0.8 0.6 THD+N = 1% 0.6 THD+N = 1% 0.4 0.4 0.2 0.2 0 2.5 3 3.5 4 4.5 0 2.5 5 3 VDD - Supply Voltage - V 3.5 4 4.5 VDD - Supply Voltage - V Figure 9. Output Power vs Supply Voltage Figure 10. Output Power vs Supply Voltage 1.8 1.4 f = 1 kHz, THD+N = 1%, Gain = 2 V/V 1 1.4 VDD = 3.6 V VDD = 4.2 V 0.8 VDD = 5 V 0.6 f = 1 kHz, THD+N = 10%, Gain = 2 V/V 1.6 PO - Output Power - W 1.2 PO - Output Power - W 0.2 VDD − Supply Voltage − V 1.6 PO - Output Power - W VDD = 2.5 V 0.5 0.4 VDD = 5 V 1.2 VDD = 4.2 V 1 VDD = 3.6 V 0.8 0.6 0.4 0.2 0.2 VDD = 2.5 V 0 VDD = 2.5 V 0 4 RL - Load Resistance - W 12 16 20 24 RL - Load Resistance - W Figure 11. Output Power vs Load Resistance Figure 12. Output Power vs Load Resistance 4 8 12 16 20 24 28 32 8 28 32 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 7 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com THD+N − Total Harmonic Distortion + Noise − % 30 20 RL = 4 W, f = 1 kHz, Gain = 2 V/V 10 VDD = 2.5 V 5 VDD = 3.6 V 2 VDD = 4.2 V 1 0.5 0.2 0.1 0.01 0.1 1 2 THD+N − Total Harmonic Distortion + Noise − % Figure 13. Total Harmonic Distortion + Noise vs Output Power 30 20 RL = 16 W, f = 1 kHz, Gain = 2 V/V 10 5 2.5 V 2 3.6 V 1 5V 0.5 0.2 0.1 0.01 30 20 10 RL = 8 W, f = 1 kHz, Gain = 2 V/V 5 2.5 V 2 3.6 V 1 5V 0.5 0.2 0.1 0.01 0.1 0.1 1 2 10 VDD = 5 V CI = 2 mF RL = 8 W Gain = 2 V/V 5 2 1 0.5 0.2 50 mW 0.1 1W 0.05 0.02 250 mW 0.008 20 100 10 VDD = 3.6 V CI = 2 mF RL = 8 W Gain = 2 V/V 1 0.5 0.2 500 mW 25 mW 0.1 0.05 125 mW 0.02 0.01 20 100 1k 20 k 20 k 10 VDD = 2.5 V CI = 2 mF RL = 8 W Gain = 2 V/V 5 2 1 15 mW 75 mW 0.5 0.2 0.1 200 mW 0.05 0.02 0.01 20 f − Frequency − Hz 100 1k 20 k f − Frequency − Hz Figure 17. Total Harmonic Distortion + Noise vs Frequency 8 1k f − Frequency − Hz Figure 16. Total Harmonic Distortion + Noise vs Frequency THD+N − Total Harmonic Distortion + Noise − % THD+N − Total Harmonic Distortion + Noise − % Figure 15. Total Harmonic Distortion + Noise vs Output Power 2 2 Figure 14. Total Harmonic Distortion + Noise vs Output Power PO − Output Power − W 5 1 PO − Output Power − W PO - Output Power - W THD+N − Total Harmonic Distortion + Noise − % THD+N - Total Harmonic Distortion + Noise - % Typical Characteristics (continued) Figure 18. Total Harmonic Distortion + Noise vs Frequency Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 10 VDD = 3.6 V CI = 2 mF RL = 16 W Gain = 2 V/V 5 2 1 0.5 0.2 15 mW 0.1 75 mW 0.05 0.02 200 mW 0.01 20 100 1k 20 k THD+N - Total Harmonic Distortion + Noise - % THD+N − Total Harmonic Distortion + Noise − % Typical Characteristics (continued) 10 5 VDD = 4.2 V, 2 R L = 4 W, Gain = 2 V/V 500 mW 1 0.5 250 mW 1W 0.2 0.1 0.05 0.02 0.01 20 100 1k f - Frequency - Hz f − Frequency − Hz 5 VDD = 3.6 V, 2 R L = 4 W, Gain = 2V/V 1 250 mW 0.5 775 mW 500 mW 0.2 0.1 0.05 0.02 0.01 20 100 1k f-Frequency-Hz 20k f = 1 kHz PO = 200 mW 1 VDD = 2.5 V VDD = 3.6 V 0.1 0 0.5 1 1.5 2 2.5 3 3.5 VIC - Common Mode Input Voltage - V Figure 23. Total Harmonic Distortion + Noise vs Common Mode Input Voltage 10 5 VDD = 2.5 V, 2 RL = 4 W, Gain = 2V/V 75 mW 15 mW 1 0.5 200 mW 0.2 0.1 0.05 0.02 0.01 20 100 1k f - Frequency - Hz 20k Figure 22. Total Harmonic Distortion + Noise vs Frequency 10 k THD+N - Total Harmonic Distortion + Noise - % Figure 21. Total Harmonic Distortion + Noise vs Frequency THD+N - Total Harmonic Distortion + Noise - % 10 Figure 20. Total Harmonic Distortion + Noise vs Frequency − Supply Voltage Rejection Ratio − dB SVR THD+N - Total Harmonic Distortion + Noise - % Figure 19. Total Harmonic Distortion + Noise vs Frequency 20k 0 CI = 2 mF RL = 8 W Vp-p = 200 mV Inputs ac-Grounded Gain = 2 V/V −10 −20 −30 −40 VDD = 3.6 V −50 VDD =2. 5 V −60 −70 VDD = 5 V −80 20 100 1k f − Frequency − Hz 20 k Figure 24. Supply Voltage Rejection Ratio vs Frequency Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 9 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com − Supply Voltage Rejection Ratio − dB SVR 0 Gain = 5 V/V CI = 2 mF RL = 8 W Vp-p = 200 mV Inputs ac-Grounded −10 −20 −30 VDD = 2. 5 V −40 −50 VDD = 5 V −60 −70 VDD = 3.6 V −80 k k − Supply Voltage Rejection Ratio − dB SVR Typical Characteristics (continued) 20 100 1k f − Frequency − Hz 20 k Figure 25. Supply Voltage Rejection Ratio vs Frequency 25 f = 217 Hz RL = 8 W Gain = 2 V/V -10 -20 -30 -40 VDD = 2.5 V -50 VDD = 3.6 V -60 -70 -80 VDD = 5 V -90 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 VIC - Common Mode Input Voltage - V Figure 27. Supply Voltage Rejection Ratio vs Common-Mode Input Voltage −10 −20 −30 CI = 2 mF RL = 8 W Inputs Floating Gain = 2 V/V −40 −50 −60 VDD = 3.6 V −70 −80 −90 −100 20 100 1k f − Frequency − Hz 20 k Figure 26. Supply Voltage Rejection Ratio vs Frequency CMRR − Common Mode Rejection Ratio − dB k SVR - Supply Voltage Rejection Ratio - dB 0 0 0 −10 −20 VDD = 2.5 V to 5 V VIC = 1 Vp−p RL = 8 W Gain = 2 V/V −30 −40 −50 −60 −70 20 100 1k f − Frequency − Hz 20 k Figure 28. Common-Mode Rejection Ratio vs Frequency CMRR - Common Mode Rejection Ratio - dB 0 RL = 8W Gain = 2 V/V -10 -20 -30 -40 VDD = 2.5 V VDD = 3.6 V -50 -60 -70 -80 VDD = 5 V -90 -100 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 VIC - Common Mode Input Voltage - V 5 Figure 29. Common-Mode Rejection Ratio vs Common-Mode Input Voltage 10 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 8 Parameter Measurement Information TPA2005D1 CI + Measurement Output CI ± RI IN+ OUT+ Load RI IN± OUT± VDD + 30 kHz Low Pass Filter + Measurement Input ± GND 1 mF VDD ± Copyright © 2016, Texas Instruments Incorporated A. CI was shorted for any common-mode input voltage measurement. B. A 33-μH inductor was placed in series with the load resistor to emulate a small speaker for efficiency measurements. C. The 30-kHz low-pass filter is required, even if the analyzer has a low-pass filter. An RC filter (100 Ω, 47 nF) is used on each output for the data sheet graphs. Figure 30. Test Setup For Graphs Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 11 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com 9 Detailed Description 9.1 Overview The TPA2005D1-Q1 device is a high-efficiency filter-free Class-D audio amplifier capable of delivering up to 1.4 W into 8-Ω loads with a 5-V power supply. The fully-differential design of this amplifier avoids the usage of bypass capacitors and the improved CMRR eliminates the usage of input-coupling capacitors. This makes the device size a perfect choice for small, space constrained applications as only three external components are required. The advanced modulation used in the TPA2005D1-Q1 PWM output stage eliminates the need for an output filter. 9.2 Functional Block Diagram Gain = 2 V/V VDD B4, C4 VDD 150 kW IN− D1 _ + + _ Deglitch Logic Gate Drive + _ Deglitch Logic Gate Drive A4 VO− _ + _ + + _ IN+ C1 150 kW SHUTDOWN A1 TTL SD Input Buffer Biases and References Ramp Generator Startup & Thermal Protection Logic D4 VO+ Short Circuit Detect GND Copyright © 2016, Texas Instruments Incorporated 9.3 Feature Description 9.3.1 Fully Differential Amplifier The TPA2005D1-Q1 device is a fully differential amplifier with differential inputs and outputs. The fully differential amplifier consists of a differential amplifier and a common-mode amplifier. The differential amplifier ensures that the amplifier outputs a differential voltage on the output that is equal to the differential input times the gain. The common-mode feedback ensures that the common-mode voltage at the output is biased around VDD / 2, regardless of the common-mode voltage at the input. The fully differential TPA2005D1-Q1 device can still be used with a single-ended input; however, the TPA2005D1-Q1 device should be used with differential inputs when in a noisy environment to ensure maximum noise rejection. 9.3.1.1 Advantages Of Fully Differential Amplifiers Fully differential amplifiers have the following advantages: • Input-coupling capacitors not required: – The fully differential amplifier allows the inputs to be biased at a voltage other than mid-supply. For example, if a codec has a mid-supply lower than the mid-supply of the TPA2005D1-Q1 device, the common-mode feedback circuit adjusts, and the TPA2005D1-Q1 outputs still is biased at mid-supply of the TPA2005D1-Q1 device. The inputs of the TPA2005D1-Q1 device can be biased from 0.5 V to VDD – 0.8 V. If the inputs are biased outside of that range, input-coupling capacitors are required. • Mid-supply bypass capacitor, C(BYPASS), not required: – The fully differential amplifier does not require a bypass capacitor. This is because any shift in the midsupply affects both positive and negative channels equally and cancels at the differential output. 12 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 Feature Description (continued) • Better RF immunity: – The fully differential amplifier cancels noise from RF interference much better than the typical audio amplifier. 9.3.2 Efficiency and Thermal Information As an example, the DRB package has a RθJA of 49.5°C/W, the maximum allowable junction temperature of 150°C, and a maximum internal dissipation of 0.2 W (worst case 5-V supply and 8-Ω load). Use Equation 1 to calculate the maximum ambient temperature. TAMax = TJMax – RθJAPDmax = 150 – 49.5(0.2) = 140.1°C (1) Equation 1 shows that the calculated maximum ambient temperature is 140.1°C at maximum power dissipation with a 5-V supply; however, the maximum ambient temperature of the package is limited to 85°C (note that the TPA2005D1TDGNRQ1 supports up to 105°C). Because of the efficiency of the TPA2005D1-Q1, it can operate under all conditions to an ambient temperature of 85°C. The TPA2005D1-Q1 is designed with thermal protection that turns the device off when the junction temperature surpasses 150°C to prevent damage to the IC. Also, using speakers more resistive than 8 Ω dramatically increases the thermal performance by reducing the output current and increasing the efficiency of the amplifier. 9.3.3 Eliminating the Output Filter With the TPA2005D1-Q1 This section focuses on why the user can eliminate the output filter with the TPA2005D1-Q1. 9.3.3.1 Effect On Audio The class-D amplifier outputs a pulse-width modulated (PWM) square wave, which is the sum of the switching waveform and the amplified input audio signal. The human ear acts as a band-pass filter such that only the frequencies between approximately 20 Hz and 20 kHz are passed. The switching frequency components are much greater than 20 kHz, so the only signal heard is the amplified input audio signal. 9.3.3.2 Traditional Class-D Modulation Scheme The traditional class-D modulation scheme has a differential output in which each output is 180 degrees out of phase and changes from ground to the supply voltage, VDD. Therefore, the differential pre-filtered output varies between positive and negative VDD, where filtered 50% duty cycle yields 0 V across the load. The traditional class-D modulation scheme with voltage and current waveforms is shown in Figure 31. Note that, even at an average of 0 V across the load (50% duty cycle), the current to the load is high, causing a high loss and thus causing a high supply current. OUT+ OUT– +5 V Differential Voltage Across Load 0V –5 V Current Figure 31. Traditional Class-D Modulation Scheme Output Voltage and Current Waveforms Into an Inductive Load With No Input Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 13 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com Feature Description (continued) 9.3.3.3 TPA2005D1-Q1 Modulation Scheme The TPA2005D1-Q1 device uses a modulation scheme that still has each output switching from 0 to the supply voltage. However, OUT+ and OUT– are now in phase with each other, with no input. The duty cycle of OUT+ is greater than 50% and OUT– is less than 50% for positive voltages. The duty cycle of OUT+ is less than 50% and OUT– is greater than 50% for negative voltages. The voltage across the load remains at 0 V throughout most of the switching period, greatly reducing the switching current, which reduces any I2R losses in the load. OUT+ OUT– Differential Voltage Across Load Output = 0 V +5 V 0V –5 V Current OUT+ OUT– Differential +5 V Voltage Across 0V Load Output > 0 V –5 V Current Figure 32. TPA2005D1-Q1 Output Voltage and Current Waveforms Into an Inductive Load 9.3.3.4 Efficiency: Why You Must Use a Filter With The Traditional Class-D Modulation Scheme The main reason that the traditional class-D amplifier needs an output filter is that the switching waveform results in maximum current flow. This causes more loss in the load, which causes lower efficiency. The ripple current is large for the traditional modulation scheme because the ripple current is proportional to voltage multiplied by the time at that voltage. The differential voltage swing is 2 × VDD, and the time at each voltage is one-half the period for the traditional modulation scheme. An ideal LC filter is needed to store the ripple current from each half-cycle for the next half-cycle, while any resistance causes power dissipation. The speaker is both resistive and reactive, whereas an LC filter is almost purely reactive. The TPA2005D1-Q1 modulation scheme has very little loss in the load without a filter because the pulses are very short and the change in voltage is VDD instead of 2 × VDD. As the output power increases, the pulses widen, making the ripple current larger. Ripple current could be filtered with an LC filter for increased efficiency, but for most applications the filter is not needed. An LC filter with a cutoff frequency less than the class-D switching frequency allows the switching current to flow through the filter instead of the load. The filter has less resistance than the speaker, resulting in less power dissipation, which increases efficiency. 14 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 Feature Description (continued) 9.3.3.5 Effects Of Applying a Square Wave Into a Speaker If the amplitude of a square wave is high enough and the frequency of the square wave is within the bandwidth of the speaker, a square wave could cause the voice coil to jump out of the air gap, scar the voice coil, or both. A 250-kHz switching frequency, however, is not significant because the speaker cone movement is proportional to 1/f2 for frequencies beyond the audio band. Therefore, the amount of cone movement at the switching frequency is very small. However, damage could occur to the speaker if the voice coil is not designed to handle the additional power. To size the speaker for added power, the ripple current dissipated in the load must be calculated by subtracting the theoretical supplied power, PSUP THEORETICAL, from the actual supply power, PSUP, at maximum output power, POUT. The switching power dissipated in the speaker is the inverse of the measured efficiency, ηMEASURED, minus the theoretical efficiency, ηTHEORETICAL. P +P –P (at max output power) SPKR SUP SUP THEORETICAL (2) P P P + SUP – SUP THEORETICAL (at max output power) SPKR P P OUT OUT (3) Ǔ ǒ 1 1 (at max output power) * OUT h MEASURED h THEORETICAL R L hTHEORETICAL + (at max output power) R ) 2r L DS(on) P SPKR +P (4) (5) The maximum efficiency of the TPA2005D1-Q1 device with a 3.6-V supply and an 8-Ω load is 86% from Equation 5. Using Equation 4 with the efficiency at maximum power (84%). An additional 17 mW is dissipated in the speaker. The added power dissipated in the speaker is not an issue as long as it is taken into account when choosing the speaker. 9.3.3.6 When to Use an Output Filter Design the TPA2005D1-Q1 device without an output filter if the traces from amplifier to speaker are short. The TPA2005D1-Q1device passed FCC and CE radiated emissions with no shielding and with speaker trace wires 100 mm long or less. A ferrite bead filter often can be used if the design is failing radiated emissions without an LC filter, and the frequency-sensitive circuit is greater than 1 MHz. If choosing a ferrite bead, choose one with high impedance at high frequencies, but very low impedance at low frequencies. Use an LC output filter if there are low-frequency ( (2p 150 kW 20 Hz ) (11) CI2 > 53 pF (12) RI1 Differential Input 1 Single-Ended Input 2 RI1 CI2 R I2 To Battery Internal Oscillator IN– _ RI2 VDD PWM H– Bridge CS VO+ VO– + IN+ CI2 GND SHUTDOWN Bias Circuitry Filter-Free Class D Copyright © 2016, Texas Instruments Incorporated Figure 36. Application Schematic With TPA2005D1-Q1 Summing Differential Input And Single-Ended Input Signals 9.4.1.3 Summing Two Single-Ended Input Signals Four resistors and three capacitors are needed for summing single-ended input signals. The gain and corner frequencies (fc1 and fc2) for each input source can be set independently (see Equation 13 through Equation 16 and Figure 37). Resistor, RP, and capacitor, CP, are needed on the IN+ terminal to match the impedance on the IN– terminal. The single-ended inputs must be driven by low-impedance sources, even if one of the inputs is not outputting an AC signal. V 150 kW æ V ö Gain 1 = O = 2 ´ çV÷ VI1 RI1 è ø (13) VO 150 kW æ V ö =2´ çV÷ VI2 RI2 è ø 1 CI1 = (2p RI1 fc1 ) Gain 2 = (14) (15) Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 17 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com Device Functional Modes (continued) CI2 = 1 2 p R ( I2 fc2 ) (16) CP = CI1 + CI2 (17) R ´ RI2 RP = I1 (RI1 + RI2 ) (18) Single-Ended Input 1 Single-Ended Input 2 CI1 R I1 To Battery CI2 R I2 Internal Oscillator CS IN– _ RP VDD PWM H– Bridge VO+ VO– + IN+ CP GND SHUTDOWN Bias Circuitry Filter-Free Class D Copyright © 2016, Texas Instruments Incorporated Figure 37. Application Schematic With TPA2005D1-Q1 Summing Two Single-Ended Inputs 18 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 10 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 10.1 Application Information These typical connection diagrams highlight the required external components and system level connections for proper operation of the device in several popular use cases. Each of these configurations can be realized using the Evaluation Modules (EVMs) for the device. These flexible modules allow full evaluation of the device in the most common modes of operation. Any design variation can be supported by TI through schematic and layout reviews. Visit http://e2e.ti.com for design assistance. 10.2 Typical Application 10.2.1 TPA2005D1-Q1 With Differential Input To Battery Internal Oscillator + RI IN– _ Differential Input – RI VDD PWM H– Bridge CS VO+ VO– + IN+ GND SHUTDOWN Bias Circuitry TPA2005D1 Filter-Free Class D Copyright © 2016, Texas Instruments Incorporated Figure 38. Typical TPA2005D1-Q1 Application Schematic With Differential Input 10.2.1.1 Design Requirements For this design example, use the parameters listed in Table 1 Table 1. Design Requirements PARAMETER EXAMPLE Power Supply 5V High > 2 V Shutdown Input Low < 0.8 V 8Ω Speaker Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 19 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com 10.2.1.2 Detailed Design Procedure 10.2.1.2.1 Component Selection Figure 38 shows the TPA2005D1-Q1 typical schematic with differential inputs, and Figure 40 shows the TPA2005D1-Q1 device with differential inputs and input capacitors, and Figure 41 shows the TPA2005D1-Q1 device with single-ended inputs. Differential inputs should be used whenever possible, because the single-ended inputs are much more susceptible to noise. Table 2. Typical Component Values REF DES VALUE EIA SIZE MANUFACTURER PART NUMBER RI 150 kΩ (±0.5%) 0402 Panasonic ERJ2RHD154V CS 1 μF (+22%, –80%) 0402 Murata GRP155F50J105Z 3.3 nF (±10%) 0201 Murata GRP033B10J332K CI (1) (1) CI is needed only for single-ended input or if VICM is not between 0.5 V and VDD – 0.8 V. CI = 3.3 nF (with RI = 150 kΩ) gives a highpass corner frequency of 321 Hz. 10.2.1.2.2 Input Resistors (RI) The input resistors (RI) set the gain of the amplifier according to equation Equation 19. 150 kW Gain = 2 ´ RI (19) Resistor matching is very important in fully differential amplifiers. The balance of the output on the reference voltage depends on matched ratios of the resistors. CMRR, PSRR, and cancellation of the second harmonic distortion diminish if resistor mismatch occurs. Therefore, it is recommended to use 1% tolerance resistors, or better, to keep the performance optimized. Matching is more important than overall tolerance. Resistor arrays with 1% matching can be used with a tolerance greater than 1%. Place the input resistors very close to the TPA2005D1-Q1 to limit noise injection on the high-impedance nodes. For optimal performance, the gain should be set to 2 V/V or lower. Lower gain allows the TPA2005D1-Q1 to operate at its best and keeps a high voltage at the input, making the inputs less susceptible to noise. 10.2.1.2.3 Decoupling Capacitor (CS) The TPA2005D1-Q1 is a high-performance class-D audio amplifier that requires adequate power-supply decoupling to ensure the efficiency is high and total harmonic distortion (THD) is low. For higher frequency transients, spikes, or digital hash on the line, a good low equivalent-series-resistance (ESR) ceramic capacitor, typically 1 μF, placed as close as possible to the device VDD lead, works best. Placing this decoupling capacitor close to the TPA2005D1-Q1 is very important for the efficiency of the class-D amplifier, because any resistance or inductance in the trace between the device and the capacitor can cause a loss in efficiency. For filtering lowerfrequency noise signals, a 10-μF, or greater, capacitor placed near the audio power amplifier also helps, but it is not required in most applications because of the high PSRR of this device. 20 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 10.2.1.3 Application Curve 1.6 RL = 8 W f = 1 kHz Gain = 2 V/V PO - Output Power - W 1.4 1.2 1 THD+N = 10% 0.8 0.6 THD+N = 1% 0.4 0.2 0 2.5 3 3.5 4 4.5 5 VDD - Supply Voltage - V Figure 39. Output Power vs Supply Voltage 10.2.2 TPA2005D1-Q1 With Differential Input and Input Capacitors To Battery CI Differential Input Internal Oscillator RI IN– _ CI VDD PWM H– Bridge VO+ VO– + RI CS IN+ GND Bias Circuitry SHUTDOWN TPA2005D1 Filter-Free Class D Copyright © 2016, Texas Instruments Incorporated Figure 40. TPA2005D1-Q1 Application Schematic With Differential Input And Input Capacitors 10.2.2.1 Detailed Design Requirements 10.2.2.1.1 Input Capacitors (CI) The TPA2005D1-Q1device does not require input coupling capacitors if the design uses a differential source that is biased from 0.5 V to VDD – 0.8 V (shown in Figure 38). If the input signal is not biased within the recommended common-mode input range, if needing to use the input as a high pass filter (shown in Figure 40), or if using a single-ended source (shown in Figure 41), input coupling capacitors are required. The input capacitors and input resistors form a high-pass filter with the corner frequency, fc, determined in Equation 20. 1 fC = (2p RI CI ) (20) The value of the input capacitor is important to consider, as it directly affects the bass (low frequency) performance of the circuit. Equation 21 is reconfigured to solve for the input coupling capacitance. 1 CI = (2p RI fC ) (21) Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 21 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com If the corner frequency is within the audio band, the capacitors should have a tolerance of ±10% or better, because any mismatch in capacitance causes an impedance mismatch at frequencies lower than the corner frequency. For a flat low-frequency response, use large input coupling capacitors (1 μF). 10.2.3 TPA2005D1-Q1 With Single-Ended Input To Battery CI Single-ended Input Internal Oscillator RI IN– _ RI VDD PWM H– Bridge CS VO+ VO– + IN+ CI GND Bias Circuitry SHUTDOWN TPA2005D1 Filter-Free Class D Copyright © 2016, Texas Instruments Incorporated Figure 41. TPA2005D1-Q1 Application Schematic With Single-Ended Input 11 Power Supply Recommendations The TPA2005D1-Q1 device is designed to operate from an input voltage supply range between 2.5-V and 5.5-V. Therefore, the output voltage range of power supply should be within this range and well regulated. The current capability of upper power should not exceed the maximum current limit of the power switch. 11.1 Power Supply Decoupling Capacitors The TPA2005D1-Q1 device requires adequate power supply decoupling to ensure a high efficiency operation with low total harmonic distortion (THD). Place a low equivalent-series-resistance (ESR) ceramic capacitor, typically 0.1 µF, within 2 mm of the VDD pin. This choice of capacitor and placement helps with higher frequency transients, spikes, or digital hash on the line. In addition to the 0.1 μF ceramic capacitor, TI recommends to place a 2.2-µF to 10-µF capacitor on the VDD supply trace. This larger capacitor acts as a charge reservoir, providing energy faster than the board supply, thus helping to prevent any droop in the supply voltage. 22 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 12 Layout 12.1 Layout Guidelines 12.1.1 Component Location Place all the external components very close to the TPA2005D1-Q1 device. The input resistors need to be very close to the TPA2005D1-Q1 input pins so noise does not couple on the high-impedance nodes between the input resistors and the input amplifier of the TPA2005D1-Q1 device. Placing the decoupling capacitor, CS, close to the TPA2005D1-Q1 device is important for the efficiency of the class-D amplifier. Any resistance or inductance in the trace between the device and the capacitor can cause a loss in efficiency. 12.1.2 Trace Width Make the high current traces going to pins VDD, GND, VO+ and VO– of the TPA2005D1-Q1 device have a minimum width of 0.7 mm. If these traces are too thin, the TPA2005D1-Q1 performance and output power will decrease. The input traces do not need to be wide, but do need to run side-by-side to enable common-mode noise cancellation. 12.1.3 8-Pin QFN (DRB) Layout Use the following land pattern for board layout with the 8-pin QFN (DRB) package. Note that the solder paste should use a hatch pattern to fill solder paste at 50% to ensure that there is not too much solder paste under the package. 0,7 mm 0,33 mm plugged vias (5 places) 1,4 mm 0,38 mm 0,65 mm 1,95 mm Solder Mask: 1,4 mm × 1,85 mm centered in package Make solder paste a hatch pattern to fill 50% 3,3 mm Figure 42. TPA2005D1-Q1 8-Pin QFN (DRB) Board Layout (Top View) Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 23 TPA2005D1-Q1 SLOS474E – AUGUST 2005 – REVISED MARCH 2016 www.ti.com 12.2 Layout Example Decoupling capacitor placed as close as possible to the device 1 8 2 7 IN + 3 6 - 4 5 SHUTDOWN IN OUT 0.1µF OUT + TPA2005D1 Input Resistors placed as close as possible to the device Top Layer Ground Plane Top Layer Traces Pad to Top Layer Ground Plane Thermal Pad Via to Bottom Ground Plane Via to Power Supply Figure 43. TPA2005D1-Q1 DRB Package Layout Example Decoupling capacitor placed as close as possible to the device SHUTDOWN 1 8 2 7 IN + 3 6 - 4 5 IN OUT 0.1µF OUT + TPA2005D1 Input Resistors placed as close as possible to the device Top Layer Ground Plane Top Layer Traces Pad to Top Layer Ground Plane Thermal Pad Via to Bottom Ground Plane Via to Power Supply Figure 44. TPA2005D1-Q1 DGN Package Layout Example 24 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 TPA2005D1-Q1 www.ti.com SLOS474E – AUGUST 2005 – REVISED MARCH 2016 13 Device and Documentation Support 13.1 Documentation Support 13.1.1 Related Documentation For related documentation see the following: • AN-1737 Managing EMI in Class D Audio Applications, SNAA050 • AN-1849 An Audio Amplifier Power Supply Design, SNAA057 • Guidelines for Measuring Audio Power Amplifier Performance, SLOA068 • Measuring Class-D Amplifiers for Audio Speaker Overstress Testing, SLOA116 • Power Rating in Audio Amplifiers, SLEA047 • TPA2005D1 Audio Power Amplifier Evaluation Module, SLOU134 13.2 Community Resource The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 13.3 Trademarks PowerPAD, E2E are trademarks of Texas Instruments. All other trademarks are the property of their respective owners. 13.4 Electrostatic Discharge Caution 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. 13.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 14 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated Product Folder Links: TPA2005D1-Q1 25 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TPA2005D1DGNRQ1 ACTIVE HVSSOP DGN 8 2500 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 85 2005I TPA2005D1DRBQ1 ACTIVE SON DRB 8 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 BIQ TPA2005D1TDGNRQ1 ACTIVE HVSSOP DGN 8 2500 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 105 2005T (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
TPA2005D1DRBQ1 价格&库存

很抱歉,暂时无法提供与“TPA2005D1DRBQ1”相匹配的价格&库存,您可以联系我们找货

免费人工找货
TPA2005D1DRBQ1
  •  国内价格
  • 1+8.72640
  • 10+7.40880
  • 30+6.68520
  • 100+5.86440

库存:430