TDA8588J Datasheet, PDF (49/54 Pages) NXP Semiconductors – I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator

Philips Semiconductors
I²C-bus controlled 4 × 50 Watt power
amplifier and multiple voltage regulator
Product specification
TDA8588J; TDA8588xJ
EXAMPLE REGULATOR 2
Regulator 2 is stabilized with an electrolytic output capacitor of 10 µF which has an ESR of 4 Ω. At T_amb = −30 °C the
capacitor value decreases to 3 µF and its ESR increases to 28 Ω which is above the maximum allowed as shown
in Fig.32, and which will make the regulator unstable. To avoid problems with stability at low temperatures, the
recommended solution is to use tantalum capacitors. Either use a tantalum capacitor of 10 µF, or an electrolytic capacitor
with a higher value.
handbook, halfpa₂g₀e
ESR
(Ω)
15
10
5
0
0.1
MGL912
maximum ESR
stable region
1
10 _{C (µF)} 100
Fig.32 Curve for selecting the value of output capacitors for regulators 1 to 5.
2004 Feb 24
49