![]() |
Electronic Components Datasheet Search |
|
TPA3131D2 Datasheet(PDF) 14 Page - Texas Instruments |
|
|
|
TPA3131D2 Datasheet(HTML) 14 Page - Texas Instruments |
14 / 35 page ![]() 0 1 2 3 4 5 6 7 0 5 10 15 20 25 30 OUTPUT POWER [W] TPA3131D2 8 TPA3132D2 8 C001 0 1 2 3 4 5 6 7 0 10 20 30 40 50 60 OUTPUT POWER [W] TPA3131D2 4 TPA3132D2 4 C002 2 L P L S OUT L R V R + 2 R P = for unclipped power 2 R æ ö æ ö ´ ç ÷ ç ÷ ç ÷ ´ è ø è ø ´ TPA3131D2, TPA3132D2 SLOS841B – SEPTEMBER 2013 – REVISED JANUARY 2015 www.ti.com where • POUT (10%THD) = 1.25 × POUT (unclipped) • RL is the load resistance. • RS is the total series resistance including RDS(on), and output filter resistance. • VP is the peak amplitude • VP = 4 × PLIMIT voltage if PLIMIT < 4 × VP (2) Increasing the PLIMIT voltage from a given value increases the maximum output voltage swing until it equals PVCC. Adjusting PLIMIT to a higher value will disable the PLIMIT function and will offer highest available output power, however for TPA3131D2 and TPA3132D2 it is always advised to use the PLIMIT function if PVCC is higher than nominal value to prevent shutdown due to over current protection. If PLIMIT is disabled on TPA3131D2 and TPA3132D2 an over current shutdown can occur with minimum recommended load impedance when PVCC is higher than its nominal value. To disable the PLIMIT function, the PLIMIT pin is simply connected to GVDD. Figure 22. PLIMIT vs. Max. Output Power, 8 Ω load Figure 23. PLIMIT vs. Max. Output Power, 4 Ω load Table 3. Power Limit Example MINIMUM PART NUMBERS PLIMIT VOLTAGE (V)(1) R to GND R to GVDD OUTPUT POWER 8 Ω (W) PVCC (V) 7.4 V TPA3131D2, TPA3132D2 1.85 27 k Ω 75 k Ω 4 12 V TPA3132D2 2.87 39 k Ω 56 k Ω 10 19 V TPA3132D2 4.26 56 k Ω 36 k Ω 25 (1) PLIMIT measurements taken with EVM gain set to 26dB and input level adjusted for 10% THD. 7.3.5 GVDD Supply The GVDD Supply is used to power the gates of the output full bridge transistors. It can also be used to supply the PLIMIT and GAIN/SLV voltage dividers. Decouple GVDD with a X5R ceramic 1 µF capacitor to GND. The GVDD supply is not intended to be used for external supply. It is recommended to limit the current consumption by using resistor voltage dividers for GAIN/SLV and PLIMIT of 100 k Ω or more. 14 Submit Documentation Feedback Copyright © 2013–2015, Texas Instruments Incorporated Product Folder Links: TPA3131D2 TPA3132D2 |
Similar Part No. - TPA3131D2 |
|
Similar Description - TPA3131D2 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |