參數(shù)資料
型號: TDF8554J/N4
廠商: NXP SEMICONDUCTORS
元件分類: 音頻/視頻放大
英文描述: 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37
封裝: PLASTIC, SOT725-1, 37 PIN
文件頁數(shù): 46/56頁
文件大?。?/td> 597K
代理商: TDF8554J/N4
TDF8554J
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 31 August 2011
50 of 56
NXP Semiconductors
TDF8554J
4
45 W power amplifier with multiple voltage regulator
14.4.1 Example regulator 2
Regulator 2 is stabilized with an electrolytic output capacitor of 10
F which has an ESR
of 4
. At T
amb = 30 C the capacitor value decreases to 3 F and its ESR increases to
28
at which the regulator becomes unstable as shown in Figure 34. To avoid problems
with stability at low temperatures, the recommended solution is to use tantalum
capacitors. Either use a tantalum capacitor of 10
F, or an electrolytic capacitor with a
higher value.
15. Test information
15.1 Quality information
This product has been qualified in accordance with the Automotive Electronics Council
(AEC) standard Q100 - Failure mechanism based stress test qualification for integrated
circuits, and is suitable for use in automotive applications.
Fig 34. Curve for selecting the value of output capacitors for regulators 1 to 5
0
0.1
1
10
C (
μF)
mgl912
stable region
maximum ESR
100
ESR
(
Ω)
20
15
10
5
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