Datenblatt-Suchmaschine für elektronische Bauteile |
|
STK433-070-E Datenblatt(PDF) 10 Page - Sanyo Semicon Device |
|
STK433-070-E Datenblatt(HTML) 10 Page - Sanyo Semicon Device |
10 / 11 page STK433-070-E No. A1488-10/11 2) Load short-circuit detection block Since the voltage between point B and point C is less than 0.6V in normal operation mode (VBE < 0.6V) and TR1 (or TR2) is not activated, the load short-circuit detection block does not operate. When a load short-circuit occurs, however, the voltage between point B and point C becomes larger than 0.6V, causing TR1 (or TR2) to turn on (VBE > 0.6V), and current I2 to flows. 3) Latch-up circuit block TR3 is activated when I2 is supplied to the latch-up circuit. When TR3 turns on and current I3 starts flowing, VST goes down to 0V (standby mode), protecting the power amplifier. Since TR3 and TR4 configure a thyristor, once TR3 is activated, the IC is held in the standby mode. To release the standby mode and reactivate the power amplifier, it is necessary to set the standby control voltage (*2) temporarily low (0V). Subsequently, when the standby control is returned to high, the power amplifier will become active again. (*4) The I3 value varies depending on the supply voltage. Determine the value of R2 using the formula below, so that I1 is equal to or less than I3. I1 ≤ I3 = VCC/R2 4) DC offset protection block The DC offset protection circuit is activated when ±0.5V (typ) voltage is applied to either "OUT CH1" or "OUT CH2," and the hybrid IC is shut down (standby mode). To release the IC from the standby mode and reactivate the power amplifier, it is necessary to set the standby control voltage temporarily low (0V). Subsequently, when the standby control is returned to high (+5V, for example), the power amplifier will become active again. The protection level must be set using the 82k Ω resistor. Furthermore, the time constant must be determined using 22 μ//22μ capacitors to prevent the amplifier from malfunctioning due to the audio signal. STK433-000 Series BTL Application 2 3 4 5 67 8 9 10 11 12 13 14 1 15 +VCC -VCC STK433-000-E series OUT 10 μF /10V 4.7 Ω 0.1 μF 56k Ω 3pF 56k Ω 3pF GND Ch1 IN 2.2 μF /50V 1k Ω +VCC Ch1 IN Ch1 NF Ch2 IN Ch2 NF Ch2 OUT Ch1 OUT -VCC SUB GND +PRE ST-BY 100 μF /100V 1.8k Ω 100 μF /100V 1.8k Ω Stand-By control Voltage VST Ch1 OUT Ch2 OUT -PRE 100 Ω /1W 3 μH 100pF 0.22 Ω 0.22 Ω 4.7 Ω 3 μH 4.7 Ω/1W 0.1 μF 4.7 Ω /1W RL=8Ω 56k Ω 33 μF 33 μF 10 μF /10V 100 Ω/1W 100 μF /100V (*1) R1 (*1) The voltage applied to the Stand-by pin (#13) must not exceed the maximum rated value (VST max). |
Ähnliche Teilenummer - STK433-070-E |
|
Ähnliche Beschreibung - STK433-070-E |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller 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 |