TDA7567PD STMicroelectronics, TDA7567PD Datasheet - Page 12

• Manufacturer Part Number: TDA7567PD
• Description: IC AMP QUAD BCD/BRIDG POWERSO36
• Manufacturer: STMicroelectronics
• Type: Class SBr

Specifications of TDA7567PD

• Output Type: 4-Channel (Quad)
• Max Output Power X Channels @ Load: 75W x 4 @ 2 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: Differential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: PowerSO-36 Exposed Top Pad
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 4-Channel Stereo
• Audio Amplifier Function: Speaker
• Single Supply Voltage (typ): 14.4V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Power Dissipation: 85W
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 8V
• Single Supply Voltage (max): 18V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -55C to 150C
• Operating Temperature Classification: Military
• Mounting: Surface Mount
• Pin Count: 36
• Package Type: PowerSO SLUG UP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Diagnostics functional description
3
3.1
12/30
Diagnostics functional description
Turn-on diagnostic
It is activated at the turn-on (standby out) under I
are:
●
●
●
●
To verify if any of the above misconnections are in place, a subsonic (inaudible) current
pulse
turn-on diagnostic status is internally stored until a successive diagnostic pulse is requested
(after a I
If the "standby out" and "diagnostic enable" commands are both given through a single
programming step, the pulse takes place first (power stage still in standby mode, low,
outputs= high impedance).
Afterwards, when the amplifier is biased, the PERMANENT diagnostic takes place. The
previous turn-on state is kept until a short appears at the outputs.
Figure 5.
Figure 6
without turn-on diagnostic.
Figure 6.
Short to GND
Short to Vs
Short across the speaker
Open speaker
(Figure
I2CB DATA
2
and
Vsvr
Out
C reading).
Turn-on diagnostic: working principle
SVR and output behavior (case 1: without turn-on diagnostic)
Bias (power amp turn-on)
7
5) is internally generated, sent through the speaker(s) and sunk back. The
show SVR and output waveforms at the turn-on (standby out) with and
Isource
Isink
Vs~5V
CH+
CH-
Doc ID 16903 Rev 1
Diagnostic Enable
(Permanent)
Isource
I (mA)
Isink
Permanent Diagnostics data (output)
acquisition time (100mS Typ)
2
FAULT
C bus request. Detectable output faults
event
Permanent diagnostic
Measure time
~100mS
permitted time
t (ms)
Read Data
TDA7567PD
t