TDF8544: I²C-bus controlled 4 x 50 W power amplifier

The TDF8544 is one of a new generation of complementary quad Bridge-Tied Load (BTL) audio power amplifiers intended for automotive applications. It has full I²C-bus controlled diagnostics, including start-up diagnostics. The TDF8544 can operate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-car operation.

The amplifier uses a complementary DMOS output stage in a Silicon-On-Insulator (SOI)- based BCD process. The DMOS output stage ensures a high power output signal with perfect sound quality. The SOI-based BCD process ensures a robust amplifier, where latch-up cannot occur, with good separation between the four independent channels, with every component isolated and without substrate currents.

sot827-1_3d
Brochures (2)
Name/DescriptionModified Date
Seamless sound experience for stop and start cars (REV 1.0) PDF (922.0 kB) 7501741401 May 2013
Continous sound experience for stop/start cars (REV 1.0) PDF (96.0 kB) 7501706227 Sep 2011
Package Information (3)
Name/DescriptionModified Date
plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) (REV 1.0) PDF (475.0 kB) SOT827-108 Feb 2016
plastic, heatsink small outline package; 36 leads; low stand-off height (REV 1.0) PDF (738.0 kB) SOT851-208 Feb 2016
plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm) (REV 1.0) PDF (471.0 kB) SOT878-108 Feb 2016
Ordering Information
ProductStatusPackage versionRemarksRMS power (W)Gain (dB)Amplifier typeChannel configurationPackage name
TDF8544THActiveSOT851-2I2C Bus diagnostic4 x 2826BTL/quadHSOP36
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFMSLMSL LF
TDF8544J/N3SOT827-1Bulk PackActiveTDF8544J/N3,112 (9352 977 51112)Standard MarkingTDF8544J/N3NANA
TDF8544SD/N3SOT878-1Bulk PackActiveTDF8544SD/N3,112 (9352 938 47112)Standard MarkingTDF8544SD/N3NANA
TDF8544TH/N3SOT851-2Reel 13" Q1/T1ActiveTDF8544TH/N3,118 (9352 977 52118)Standard MarkingTDF8544TH/N311
Seamless sound experience for stop and start cars TDF8546
Continous sound experience for stop/start cars TDF8546
plastic DIL-bent-SIL (special bent) power package; 27 leads (lead length 6.8 mm) TDF8546
plastic rectangular-DIL-bent-SIL (reverse bent) power package; 27 leads (row spacing 2.54 mm) TDF8544
plastic, heatsink small outline package; 36 leads; low stand-off height TDF8599
TDF8546
TDF8544
TDF8599