TDA1566TH/N2S,112 NXP

TDA1566 2 I C-bus controlled dual channel 46 W/2 , single channel 92 W/1 amplier with load diagnostic features Rev. 02 20 August 2007 Product data sheet 1. General description The TDA1566 is a car audio power amplier with a complementary output stage realized in BCDMOS. The TDA1566 has two Bridge Tied Load (BTL) output stages and comes in a HSOP24 or DBS27P package. 2 2 The TDA1566 can be controlled with or without I C-bus. With I C-bus control gain settings per channel and diagnostic trigger levels can be selected. Failure conditions as well as 2 load identication can be read with I C-bus. The load identication detects whether the outputs of a BTL channel are connected with a DC or AC load and discriminates between a speaker load, a line driver load and an open (unconnected) load. The TDA1566 can be congured in a single BTL mode and drive a 1 load. For the single BTL mode it is necessary to connect on the Printed-Circuit Board (PCB) the outputs of both BTL channels in parallel. 2. Features 2 2 n Operates in I C-bus mode and non-I C-bus mode 2 2 n TH version: four I C-bus addresses controlled by two pins J version: two I C-bus addresses controlled by one pin n Two 4 or 2 capable BTL channels or one 1 capable BTL channel n Low offset n Pop free off/standby/mute/operating mode transitions n Speaker fault detection n Selectable gain (26 dB and 16 dB) 2 n In I C-bus mode: u DC load detection: open, short and speaker or line driver present u AC load (tweeter) detection u Programmable trigger levels for DC and AC load detection u Per channel programmable gain (26 dB and 16 dB, selectable per channel) u Selectable diagnostic levels for clip detection and thermal pre-warning u Selectable information on the DIAG pin for clip information of each channel separately and independent enabling of thermal-, offset- or load fault n Independent short-circuit protection per channel n Loss of ground and open V safe P n All outputs short-circuit proof to V , GND and across the load P n All pins short-circuit proof to ground n Temperature controlled gain reduction at high junction temperaturesTDA1566 NXP Semiconductors 2 I C-bus controlled dual channel/single channel amplier n Fault condition diagnosis per channel: short to ground, short to supply, shorted lead and speaker fault (wrongly connected) n Low battery voltage detection n TH version: pin compatible with the TDA8566TH1 3. Ordering information Table 1. Ordering information Type number Package Name Description Version TDA1566TH HSOP24 plastic, heatsink small outline package 24 leads low SOT566-3 stand-off height TDA1566J DBS27P plastic DIL-bent-SIL (special bent) power package SOT827-1 27 leads (lead length 6.8 mm) 4. Block diagram V V ADS2 ADS1 SDA SCL P1 P2 8 96514 23 22 PROG 13 CLIP 7 MODE SELECT DIAGNOSTIC 2 EN I C-BUS SELECT /CLIP DETECT 1 DIAG 16 10 OUT1+ IN1+ MUTE 26 dB/ 16 dB 18 OUT1- PROTECTION 11 /DIAGNOSTIC IN1- MUTE 19 2 OUT2+ IN2+ MUTE 26 dB/ 16 dB 21 OUT2- PROTECTION V P 3 15 /DIAGNOSTIC IN2- MUTE 1OHM 24 TDA1566TH TAB 4 12 17 20 SVR SGND PGND1 PGND2 001aac999 Fig 1. Block diagram (TDA1566TH) TDA1566 2 NXP B.V. 2007. All rights reserved. Product data sheet Rev. 02 20 August 2007 2 of 46