Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
TDA7476 Datasheet(PDF) 7 Page - STMicroelectronics |
|
TDA7476 Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 15 page TURN-ON DIAGNOSTIC - THRESHOLDS CH1, CH2, CH3, CH4, CH5 Output voltage during test. (The power amplifier must be in ST-BY mode). Note: some faults can mask others if they are present at the same moment on the same channel: - If there is a short to GND and an open load on the same channel, the TDA7476 gives information only about one of them, depending on the wire on which the short circuit is present. - The short circuit to GND masks any short circuit across the load. - The short circuit to Vs masks any short or open load. The minimum voltage of the AUX IN pin to sense the open load condition is 2V. The minimum voltage of the AUX IN pin to detect the short circuit to GND, by sensing the drop on the resistors is 4.5V. If this voltage falls below 2V, the AUX in is considered short circuited to GND. From 2V to 4.5V the sensing circuit can detect a short circuit in both ways (by sensing across the resistor or through the voltage between the AUX IN pin and GND). PERMANENT DIAGNOSTIC - THRESHOLDS CH1, CH2, CH3, CH4, CH5 The circuit will recognize as a fault condition any situation where the following short circuit voltages last more than 2 sec (typ). Output voltage AUX1 - AUX2 The voltage across the resistors Rsens1 or Rsens2 is sensed. The circuit will recognize as a fault con- dition any situation where the following voltages last more than 2sec (typ) in the region ”S.C.to GND” or ”open load”. The minimum voltage of the AUX IN pins to sense the open load condition is 2V. The minimum voltage of the AUX IN pin to detect the short circuit to GND by sensing drop on the re- sistor is 4.5V. If this voltage is below 2V, the AUX line is considered short circuited to GND. From 2V to 4.5V the sensing circuit can detect a short circuit in both ways (by sensing across the resistor or through the voltage between the AUX IN pin and GND). S.C. across Load x Open Load 0V 22mV 220mV VS x Normal Operation 5mV 550mV D97AU631A AUX1 - AUX2 Voltage across the sensing resistors. S.C. to GND x Open Load VS 0.5V 125mV 0V x Normal Operation 0.75V 85mV D97AU572 S.C. to GND x S.C. to Vs 0V 1.2V VS-1.3 VS x Normal Operation 0.8V VS-0.7V D97AU573A S.C. to GND x Open Load VS 0.5V 125mV 0V x Normal Operation 0.75V 85mV D97AU574 Voltage across the load during test. (The power amplifier must be in ST-BY mode). D96AU502A S.C. to GND x S.C. to Vs 0V 1.2V VS-1.3 VS x Normal Operation 0.8V VS-0.7V TDA7476 7/15 |
Número de pieza similar - TDA7476 |
|
Descripción similar - TDA7476 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes 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 |