Motore di ricerca datesheet componenti elettronici |
|
TDA4605-3 Scheda tecnica(PDF) 6 Page - Siemens Semiconductor Group |
|
TDA4605-3 Scheda tecnica(HTML) 6 Page - Siemens Semiconductor Group |
6 / 20 page Semiconductor Group 79 TDA 4605-3 Block Diagram Pin 1 The regulating voltage forwarded to this pin is compared with a stable internal reference voltage VR in the regulating and overload amplifier. The output of this stage is fed to the stop comparator. If the control voltage is rather small at pin 1 an additional current is added by means of current source which is controlled according the level at pin 7. This additional current is virtually reducing the control voltage present at pin 1. Pin 2 A voltage proportional to the drain current of the switching transistor is generated there by the external RC-combination in conjunction with the primary current transducer. The output of this transducer is controlled by the logic and referenced to the internal stable voltage V2B . If the voltage V2 exceeds the output voltage of the regulations amplifier, the logic is reset by the stop comparator and consequently the output of pin 5 is switched to low potential. Further inputs for the logic stage are the output for the start impulse generator with the stable reference potential VST and the supply voltage motor. Pin 3 The down divided primary voltage applied there stabilizes the overload point. In addition the logic is disabled in the event of low voltage by comparison with the internal stable voltage VV in the primary voltage monitor block. Pin 4 Ground Pin 5 In the output stage the output signals produced by the logic are shifted to a level suitable for MOS- power transistors. Pin 6 From the supply voltage V6 are derived a stable internal references VREF and the switching threshold V6A , V6E , V6 max and V6 min for the supply voltage monitor. All references values (VR , V2B , VST) are derived from VREF . If V6 > VVE , the VREF is switched on and switched off when V6 < V 6A . In addition, the logic is released only for V6 min < V6 < V6 max . Pin 7 The output of the overload amplifier is connected to pin 7. A load on this output causes a reduction in maximal impulse duration. This function can be used to implement a soft start, when pin 7 is connected to ground by a capacitor. |
Codice articolo simile - TDA4605-3 |
|
Descrizione simile - TDA4605-3 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |