TDF8590TH NXP Semiconductors, TDF8590TH Datasheet
TDF8590TH
Available stocks
Related parts for TDF8590TH
TDF8590TH Summary of contents
Page 1
... The typical output power is 2 into 4 . The TDF8590TH is available in an HSOP24 power package with a small internal heat sink. Depending on the supply voltage and load conditions, a small or even no external heat sink is required. The amplifier operates over a wide supply voltage range from and consumes a low quiescent current ...
Page 2
... BOOT1 V 14 DDP1 DIAG 13 Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifi DDP2 DDP1 DRIVER HIGH 16 AND DRIVER LOW V SSP1 TDF8590TH V DDP2 22 DRIVER HIGH 21 AND DRIVER LOW SSP1 SSP2 1 V SSA2 2 SGND2 3 V DDA2 4 IN2M ...
Page 3
... Functional description 6.1 Introduction The TDF8590TH is a dual channel audio power amplifier using class-D technology. The audio input signal is converted into a Pulse Width Modulated (PWM) signal via an analog input stage and PWM modulator. To enable the output power transistors to be driven, this digital PWM signal is applied to a control and handshake block and driver circuits for both the high-side and low-side. An external 2nd-order low-pass fi ...
Page 4
... Mono Bridge-Tied Load (BTL) amplifier • Dual Single-Ended (SE) amplifiers The TDF8590TH also contains circuits common to both channels such as the oscillator, all reference sources, the mode functionality and a digital timing manager. For protection a thermal foldback, temperature, current and voltage protection are built in. ...
Page 5
... V mute 2.5 V standby 0 V (SGND) 100 ms V MODE 5 V standby 0 V (SGND) 100 ms connected between pins OSC and V ext(OSC) Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier Figure 4. audio switching operating time 50 ms audio switching operating time 50 ms 001aad837 ...
Page 6
... If the output current tends to exceed the maximum output current the output voltage of the TDF8590TH will be regulated to a level where the maximum output current is limited while the amplifier outputs remain switching, the amplifier does not shut down ...
Page 7
... Fig 5. Pin DIAG with activated current limiting Fig 6. Restart of the TDF8590TH When the loudspeaker terminals are short-circuited and the OCP is triggered the TDF8590TH is switched off completely and will try to restart every 100 ms (see • after switch off pin DIAG will be released • ...
Page 8
... During the start-up sequence, when pin MODE is switched from standby to mute. In the event of a short-circuit at one of the output terminals to V procedure is interrupted and the TDF8590TH waits until the short to the supply lines has been removed. Because the test is done before enabling the power stages, no large currents will fl ...
Page 9
... W BTL (8 ) class-D amplifier Section 6.4.3). . Pin DIAG should not be connected to an external SSA V5V V DDA 5.6 V 100 k SGND 100 k M1 DIAG SSA Rev. 02 — 23 April 2007 TDF8590TH Figure 6). A permanent 10 k DIAG out M2 001aad840 Figure 8. © NXP B.V. 2007. All rights reserved ...
Page 10
... V DDP2 DDA2 to SGND2 V and V referred to SSP1 SSA1 SGND1; V and V SSP2 SSA2 to SGND2 referred to OUT1 referred to OUT2 referred to V SSD Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier 001aad841 OUT1 SGND OUT2 power stage mbl466 Min Max 0.3 +34 referred 34 +0.3 referred 0.3 +66 - ...
Page 11
... + 5.5 V MODE Standby mode Mute mode Operating mode ) SSD activated OCP activated OCP or WP Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier Min Max Unit ...
Page 12
... Section 12.7 asymmetrical supply application the SGND voltage should Figure 9 the gain reduction will commence and at a junction temperature of act(th_fold) V O(offset) operating STBY mute 0 0.8 Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier Min Typ - - [ [ ...
Page 13
... (RMS value kHz (RMS value) i(CM) i(CM) measurement (see DSon = Section (see Section 12.4). S Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifi + +150 C; unless j Min Typ [ [ [ ...
Page 14
... (RMS value kHz (RMS value) i(CM) i(CM) measurement (see DSon = Section 12.4). (see Section S Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifi + +150 C; unless j Min Typ [ [ 120 L [2] - ...
Page 15
... ------------------------------------------------------ DSon --------------------------------------------------------------------------------------------------------------------------------- R L ------------------------------------------------------------------------------------------- DSon hs DSon ls = ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - o 0.5% Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier Min = 30.0 k 290 ext(OSC ext(OSC ext(OSC 210 = – f ...
Page 16
... output power at the onset of clipping Section Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier f osc ...
Page 17
... Pumping effects When the TDF8590TH is used configuration, a so-called pumping effect can occur. During one switching interval, energy is taken from one supply (e.g. V part of that energy is delivered back to the other supply line (e.g. V When the voltage supply source cannot sink energy, the voltage across the output capacitors of that voltage supply source will increase: the supply voltage is pumped to higher levels ...
Page 18
... SMD capacitors must be placed as close as possible to the power supply pins of the TDF8590TH • The heatsink of the HSOP24 package of the TDF8590TH is connected to pin V • The external heatsink must be connected to the ground plane • Use a thermal conductive, electrically isolating Sil-Pad between the backside of the ...
Page 19
... ON/OFF OPERATE/MUTE V SSP V V SSA DDP V SSA (63 V) 100 C14 C15 C13 FB GND 100 nF 100 TDF8590TH C33 C35 C37 C38 GND C36 100 nF 100 nF 100 SSA SSP DDP V SSP SINGLE-ENDED OUTPUT FILTER VALUES ...
Page 20
... V SSA DDP SSP V SSA (63 V) 100 C14 C15 C16 FB GND 100 nF 100 nF 100 OUT1 16 BOOT1 15 TDF8590TH BOOT2 22 OUT2 C33 C37 C38 C39 GND C36 100 nF 100 nF 100 nF 100 SSA SSP ...
Page 21
... Hz 001aad847 10 THD (%) ( kHz. ( kHz. ( 100 Hz Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifi (1) ( (1) 1 ...
Page 22
... CMRR (dB (kHz) V i(CM) DC shorted. (1) SE application. (2) BTL application. Fig 16. Common mode rejection ratio as a function of frequency Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier 001aad850 (1) ( (kHz ...
Page 23
... V (p-p). V ripple P (1) ripple on both supply lines, ripple in phase. (2) ripple on both supply lines, ripple in antiphase. (3) ripple on one supply line. b. BTL application Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier 001aad856 (1) (2) ( (kHz ...
Page 24
... BTL application 100 mute (dB) 80 (1) ( Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifi ripple 001aad859 ...
Page 25
... THD = 10 %. (2) THD = 0 001aad862 140 P o (W) 120 100 (V) P (1) THD = 10 %. (2) THD = 0 Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier (1) ( kHz (1) ( kHz © NXP B.V. 2007. All rights reserved. ...
Page 26
... 001aad865 (%) 60 80 100 P (W) o (1) V (2) V 001aad864 ( 100 P (W) o (1) V (2) V Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier 100 (1) ( 120 kHz BTL application ...
Page 27
... scale (2) ( 0.32 16.0 13.0 1.1 11.1 6.2 2.9 0.23 15.8 12.6 0.9 10.9 5.8 2.5 REFERENCES JEDEC JEITA Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifi detail 14.5 1.1 1.7 1 0.25 0.25 0.03 13.9 0.8 1.5 EUROPEAN PROJECTION SOT566 ...
Page 28
... Product data sheet 2 C-related items were removed. was modified. Section 2 “Features” BTL was changed into 120 W. Preliminary data sheet Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier Change notice Supersedes - TDF8590TH_1 - - © NXP B.V. 2007. All rights reserved ...
Page 29
... Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. http://www.nxp.com salesaddresses@nxp.com Rev. 02 — 23 April 2007 TDF8590TH 160 W BTL (8 ) class-D amplifier © NXP B.V. 2007. All rights reserved ...
Page 30
... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2007. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com TDF8590TH All rights reserved. Date of release: 23 April 2007 Document identifier: TDF8590TH_2 ...