TDA8566 2 40 W/2 stereo BTL car radio power amplier with differential inputs and diagnostic outputs Rev. 06 15 October 2007 Product data sheet 1. General description The TDA8566 is an integrated class-B output amplier which is available in several packages. TDA8566TH is contained in a 20-lead small outline plastic package. The TDA8566TH1 is a 24-lead small outline plastic package which is pin compatible with the 2 I C-bus controlled amplier TDA1566TH for one board layout. TDA8566Q is a 17-pin DIL-bent-SIL package. The device contains 2 ampliers in a Bridge-Tied Load (BTL) conguration. The output power is 2 25 W in a 4 load or 2 40 W in a 2 load. It has a differential input stage and 2 diagnostic outputs. The device is primarily developed for car radio applications. 2. Features n Differential inputs n Very high Common Mode Rejection Ratio (CMRR) n High common mode input signal handling n Requires very few external components n High output power n 4 and 2 load driving capability n Low offset voltage at output n Fixed gain n Diagnostic facility (distortion, short-circuit and temperature pre-warning) n Good ripple rejection n Mode select switch (operating, mute and standby) n Load dump protection n Short-circuit proof to ground, to V and across the load P n Low power dissipation in any short-circuit condition n Thermally protected n Reverse polarity safe n Protected against electrostatic discharge n No switch-on/switch-off plops n Low thermal resistance n TDA8566TH1 is pin compatible with TDA1566THTDA8566 NXP Semiconductors 2 40 W/2 stereo BTL car radio power amplier 3. Quick reference data Table 1. Quick reference data V = 14.4 V T =25 C f = 1 kHz measured in test circuit of Figure 9 unless otherwise P amb i specied. Symbol Parameter Conditions Min Typ Max Unit 1 V supply voltage 6 14.4 18 V P I repetitive peak output - - 7.5 A ORM current I quiescent current R = - 115 180 mA q L I standby current - 0.1 10 A stb Z input impedance differential 100 120 150 k i P output power R =4 THD = 10 % 21 25 - W o L R =2 THD = 10 % 33 40 - W L 2 SVRR supply voltage ripple operating 50 60 - dB rejection channel separation P = 25 W R =10k 45 50 - dB cs o s 3 CMRR common mode rejection R =0 60 75 - dB s ratio G closed loop voltage gain 25 26 27 dB v 4 V noise output voltage operating R =0 - 85 120 V n(o) s 1 The circuit is DC adjusted at V = 6 V to 18 V and AC operating at V = 8.5 V to 18 V. P P 2 V =V = 2 V (p-p) R =0 . ripple ripple(max) s 3 Common mode rejection ratio measured at the output (over R ) with both inputs tied together L V 3.5 V (RMS) f = 100 Hz to 10 kHz R =0 . common i s 4 Noise measured in a bandwidth of 20 Hz to 20 kHz. 4. Ordering information Table 2. Ordering information Type number Package Name Description Version TDA8566TH HSOP20 plastic, heatsink small outline package 20 leads low stand-off height SOT418-3 TDA8566TH1 HSOP24 plastic, heatsink small outline package 24 leads low stand-off height SOT566-3 TDA8566Q DBS17P plastic DIL-bent-SIL power package 17 leads (lead length 12 mm) SOT243-1 TDA8566 6 NXP B.V. 2007. All rights reserved. Product data sheet Rev. 06 15 October 2007 2 of 21