TDA7572TR STMicroelectronics, TDA7572TR Datasheet - Page 56

• Manufacturer Part Number: TDA7572TR
• Description: IC AMP PWM 200W BRIDGE 64HIQUAD
• Manufacturer: STMicroelectronics
• Type: Class Dr

Specifications of TDA7572TR

• Output Type: 1-Channel (Mono)
• Voltage - Supply: 8 V ~ 58 V
• Features: Digital Inputs, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: 64-HiQUAD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Max Output Power X Channels @ Load: -

Start-up procedures, modulator turn-on after a tristate condition.
13
13.1
13.2
56/64
Start-up procedures, modulator turn-on after a
tristate condition.
Start-up
Condition to be respected to turn-on the modulator at the start-up:
TristateMOD represents an internal signal which is
The thermal protection represent an internal signal which is set to '1' at the start-up and
eventually set to '0' if
Once all the listed condition present in the above table are respected the modulator is get
out from tri-state after ~500µs.
Tristate
When the modulator is put in tristate by some diagnostic condition the system retrieve from
this condition in two possible mode depending from the supplies configuration
●
●
●
●
●
●
●
●
●
–
–
–
–
–
–
–
Are MODE0 and/or MODE1 pins at voltage higher than 2.3V?
Is the command “TristateMOD” Set to “1”?
Is the PLL locked? (Only in case of digital Input)
Is the Thermal protection FLAG ON?
Are the VSP-VP2.5 and VM2.5-VSM drop voltage respectively over VAP and VAM?
Is the VSP-VSM voltage lower than V
Is the total VSP-VSM Higher than VPO+?
Is the SVR pin higher than Vsvr+?
Is the 14V pin supply higher than V14mute+?
in NOI
steady state value.
in I
state value and by I
in NOI
steady state value and the turn-on diagnostic has positive result.
the internal temperature trespass the second threshold and/or
the external temperature trespass the second threshold
split supply: The modulator starts to switch ~500µs after all conditions listed in the
above table are realized.
Single-supply: Only in case of single supply, is activated a circuit that inhibit the
startup of the SVR capacitor charge (then the modulator enable) if the SVR
voltage is higher than 1.5V. If, during the normal activity of the modulator, an event
that moves the modulator in tristate is present (due to, as example, an UVLO) the
Vsvr gets to discharge until its value is under 1.5V. Ones reached this value the
capacitor svr start to charge. The modulator starts to switch ~500µs after all
conditions listed in the above table are realized. Purpose of this circuit is to avoid
fast turn-off/on of the modulator and increase the pop performance.
2
C MODE set to '1' when the digital supply pin VDIG (50) reaches its steady
2
2
CBUS MODE set to '1' when the digital supply pin VDIG (50) reaches its
CDIAGNOSTIC set to '1' when the digital supply pin VDIG (50) reaches its
2
C bus is written '1' on the D4 bit of modulator register.
U
and V
UC
?
TDA7572