TDA7570 Datasheet, PDF (11/17 Pages) STMicroelectronics – 250W PWM high efficiency power audio amplifier

TDA7570
Electrical specifications
3.4
3.4.1
Notes on the electrical schematic shown in Figure 3
Main characteristics
● 2 channels single-ended or 1 channel bridge PWM amplifier
● Power output: see Table 5
● Gain single-ended = 28 dB
● Gain bridge = 34dB
● Clip detector settled at THD=10%
● Internal master oscillator
The schematic is depicted showing the suggested structure of the printed circuit board
tracks (star points, high current path, components placement).
To avoid malfunctioning due to the parasitic inductance, short connections lengths are
recommended.
Table 6. Component characteristics
Component
(See schematic of Figure 4)
Minimum load:
2 x 4 Ohm single-ended
or 8 Ohm bridge
(2 x 65W / 1 x 130W)
P-MOS-L
P-MOS-R
STP12PF06
N-MOS-L
N-MOS-R
STP14NF06
Rp-N-L2
RP-P-L2
Rp-N-R2
Rp-P-R2
Not present
Minimum load:
2 x 2 Ohm single-ended
or 4Ohm bridge
(2 x 125W / 1 x 250W))
2 x STP12PF06
in parallel
2 x STP14NF06
in parallel
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