TDF8597TH/N1,118 NXP

TDF8597 2 I C-bus controlled dual channel 43 W/2 , single channel 85 W/1 class-D power amplifier with full diagnostics Rev. 1 17 November 2011 Preliminary short data sheet 1. General description The TDF8597 is a dual Bridge-Tied Load (BTL) car audio amplifier comprising an NDMOST-NDMOST output stage based on SOI BCDMOS technology. The TDF8597 fully supports start/stop systems as it can operate at a battery voltage as low as 6 V. The 2 2 TDF8597 can be controlled with or without I C. I C allows control of load detection results and fault conditions to be read. The TDF8597 is a high efficiency class-D amplifier with low dissipation. Due to the low dissipation, the device can be used with a smaller heat sink 2 than standard class AB amplifiers. Six different I C addresses can be selected with external resistors connected to the ADS and MOD pins. If pin ADS is a short-circuit to 2 2 ground, the TDF8597 operates in non-I C mode, and no I C communication is possible. Use pins EN and ON to switch to operating and mute modes. 2. Features and benefits High-efficiency Low quiescent current Operating voltage from 6 V to 24 V Start/Stop ready: continues to operate without audible disturbance during engine start at a battery voltage as low as 6 V 4 or 2 capable stereo BTL channels or 1 capable mono BTL channel Differential inputs 2 Fast-mode I C-bus 2 2 2 I C-bus mode with 6 I C-bus addresses or non-I C-bus mode operation Clip detect selectable at 0.2 % or 10 % THD Independent short-circuit protection for each channel Advanced short-circuit protection for load, GND and supply Thermal foldback and thermal protection DC-offset protection Selectable AD or BD modulation Advanced clocking: Switchable oscillator clock source: internal for Master mode or external for Slave mode Spread spectrum mode Phase staggering Frequency hopping No pop noise caused by DC output offset voltage 2 I C-bus mode:TDF8597 NXP Semiconductors 2 I C-bus controlled single and dual channel class-D amplifier Load diagnostics Speaker load, open load and shorted load Amplifier output to ground and to supply shorts Tweeter detection Thermal pre-warning diagnostic level setting Identification of activated protection or warnings Selectable diagnostic information available on DIAG and CLIP pins Qualified in accordance with AEC-Q100 3. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit General V =14.4V P V supply voltage 6 14.4 24 V P I supply current off state V <0.8V - 2 10 A P EN I quiescent current no load, snubbers and output filter -90 120 mA q connected Stereo mode V =14.4V P P output power R =4 THD = 10 % 24 26 - W o L R =2 THD = 10 % 39 43 - W L Stereo mode V =24V P P output power R =4 THD = 10 % - 70 - W o L R =2 THD = 10 % - 100 - W L Parallel mode V = 14.4 V P P output power R =1 THD = 10 % - 85 - W o L Parallel mode V =24V P P output power R =2 THD = 10 % - 138 - W o L R =1 THD = 1 % 135 150 - W L 4. Ordering information Table 2. Ordering information Type number Package Name Description Version TDF8597TH HSOP36 HSOP36: plastic, heatsink small outline package 36 leads low stand-off SOT851-2 height TDF8597 SDS All information provided in this document is subject to legal disclaimers. NXP B.V. 2011. All rights reserved. Preliminary short data sheet Rev. 1 17 November 2011 2 of 8