TDA7563B STMicroelectronics, TDA7563B Datasheet - Page 20
![no-image](/images/manufacturer_photos/0/6/637/stmicroelectronics_sml.jpg)
TDA7563B
Manufacturer Part Number
TDA7563B
Description
IC AMP QUAD MULTIFUNC FLEXIWATT2
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet
1.TDA7563BPDTR.pdf
(33 pages)
Specifications of TDA7563B
Output Type
4-Channel (Quad)
Max Output Power X Channels @ Load
75W x 4 @ 2 Ohm
Voltage - Supply
8 V ~ 18 V
Features
I²C, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type
Through Hole
Package / Case
27-Flexiwatt (bent and staggered leads)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7563B
Manufacturer:
ST
Quantity:
20 000
Part Number:
TDA7563B DD
Manufacturer:
ST
Quantity:
20 000
Part Number:
TDA7563B-DB
Manufacturer:
ST
Quantity:
20 000
Part Number:
TDA7563B-DD
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
TDA7563BH
Manufacturer:
FREESCALE
Quantity:
150
Part Number:
TDA7563BH
Manufacturer:
ST
Quantity:
20 000
Thermal protection
6
6.1
20/33
Thermal protection
Thermal protection is implemented through thermal foldback
Thermal foldback begins limiting the audio input to the amplifier stage as the junction
temperatures rise above the normal operating range. This effectively limits the output power
capability of the device thus reducing the temperature to acceptable levels without totally
interrupting the operation of the device.
The output power will decrease to the point at which thermal equilibrium is reached.
Thermal equilibrium will be reached when the reduction in output power reduces the
dissipated power such that the die temperature falls below the thermal foldback threshold.
Should the device cool, the audio level will increase until a new thermal equilibrium is
reached or the amplifier reaches full power. Thermal foldback will reduce the audio output
level in a linear manner.
Three thermal warning are available through the I
Figure 28. Thermal foldback diagram
Fast muting
The muting time can be shortened to less than 1.5 ms by setting (IB2) D5 = 1. This option
can be useful in transient battery situations (i.e. during car engine cranking) to quickly
turnoff the amplifier for avoiding any audible effects caused by noise/transients being
injected by preamp stages. The bit must be set back to “0” shortly after the mute transition.
CD out
Vout
Vout
TH. WARN.
125°
ON
TH. WARN.
Doc ID 12733 Rev 3
< T
140°
ON
SD
TH. WARN.
155°
ON
TH. SH.
START
> T
2
C bus data.
SD
(with same input
signal)
(Figure
TH. SH.
END
28).
Tj ( °C)
Tj ( °C)
Tj ( °C)
TDA7563B