TDA7575PDTR STMicroelectronics, TDA7575PDTR Datasheet - Page 18
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TDA7575PDTR
Manufacturer Part Number
TDA7575PDTR
Description
IC AMP AUDIO PWR 150W POWERSO37
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet
1.TDA7575PDTR.pdf
(21 pages)
Specifications of TDA7575PDTR
Output Type
1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power X Channels @ Load
150W x 1 @ 1 Ohm; 75W x 2 @ 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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-3990-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7575PDTR
Manufacturer:
ST
Quantity:
20 000
DOCUMENT CD00003142
Copyright STMicroelectronics
TDA7575PD
Fig. G: Restart timing without Diagnostic Enable (Permanent)
Each 1mS time, a sampling of the fault is done
Fig H: Restart timing with Diagnostic Enable (Permanent)
OUTPUT DC OFFSET DETECTION.
Any DC output offset exceeding +/- 2 V are signalled out. This inconvenient might occur as a consequence of
initially defective or aged and worn-out input capacitors feeding a DC component to the inputs, so putting the
speakers at risk of overheating.
This diagnostic has to be performed with low-level output AC signal (or Vin = 0).
The test is run with selectable time duration by microprocessor (from a "start" to a "stop" command):
Excess offset is signalled out if persistent throughout the assigned testing time. This feature is disabled if any
overloads leading to activation of the short-circuit protection occurs in the process.
14/17
circuit protection intervention
– To check the status of the device a sampling system is needed. The timing is chosen at microproces-
– START = Last reading operation or setting IB1 - D5 - (OFFSET enable) to 1
– STOP = Actual reading operation
circuit protection intervention
(i.e. short circuit to GND)
relevant data are stored inside the device and can be read by the microprocessor. When one cycle
has terminated, the next one is activated by an I
throughout the car-radio operating time.
sor level (over than half a second is recommended).
Overcurrent and short
(i.e. short circuit to GND)
Overcurrent and short
REVISION 3.0
1-2mS
1mS
1mS
100mS
1mS
COMPANY INTERNAL
ACTIVE
1mS
2
C reading. This is to ensure continuous diagnostics
1mS
Short circuit removed
1mS
Unauthorized reproduction and communication strictly prohibited
1mS
t
DATE 22-Mar-2004
Short circuit removed
t
Out
page: 14/17