TDF8599B NXP Semiconductors, TDF8599B Datasheet

The TDF8599B is a dual Bridge-Tied Load (BTL) car audio amplifier comprising anNDMOST-NDMOST output stage based on SOI BCDMOS technology

TDF8599B

Manufacturer Part Number
TDF8599B
Description
The TDF8599B is a dual Bridge-Tied Load (BTL) car audio amplifier comprising anNDMOST-NDMOST output stage based on SOI BCDMOS technology
Manufacturer
NXP Semiconductors
Datasheet

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Part Number:
TDF8599BTH
Manufacturer:
NXP/恩智浦
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20 000
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TDF8599BTH/N1,518
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1. General description
2. Features
The TDF8599B is a dual Bridge-Tied Load (BTL) car audio amplifier comprising an
NDMOST-NDMOST output stage based on SOI BCDMOS technology. Low power
dissipation enables the TDF8599B high-efficiency, class-D amplifier to be used with a
smaller heat sink than those normally used with standard class-AB amplifiers.
The TDF8599B can operate in either non-I
I
the device. Up to 15 I
external resistor connected to pins ADS and MOD.
When pin ADS is short circuited to ground, the TDF8599B operates in non-I
Switching between Operating mode and Mute mode in non-I
using pins EN and SEL_MUTE.
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
2
C-bus mode, DC load detection results and fault conditions can be easily read back from
TDF8599B
I
85 W/1
Rev. 01 — 29 July 2009
High-efficiency
Low quiescent current
Operating voltage from 8 V to 24 V
Two 4 /2
Differential inputs
I
Clip detect
Independent short circuit protection for each channel
Advanced short circuit protection for load, GND and supply
Load dump protection
Thermal foldback and thermal protection
DC offset protection
Selectable AD or BD modulation
Parallel channel mode for high current drive capability
Advanced clocking:
No ‘pop noise’ caused by DC output offset voltage
2
2
N
N
N
N
C-bus mode with 15 I
C-bus controlled dual channel 43 W/4 , single channel
Switchable oscillator clock source: internal for Master mode or external for Slave
mode
Spread spectrum mode
Phase staggering
Frequency hopping
class-D power amplifier with load diagnostics
capable BTL channels or one 1
2
C-bus addresses can be selected depending on the value of the
2
C-bus addresses or non-I
2
C-bus mode or I
capable BTL channel
2
C-bus mode operation
2
2
C-bus mode. When in
C-bus mode is only possible
Product data sheet
2
C-bus mode.

Related parts for TDF8599B

TDF8599B Summary of contents

Page 1

... W/1 Rev. 01 — 29 July 2009 1. General description The TDF8599B is a dual Bridge-Tied Load (BTL) car audio amplifier comprising an NDMOST-NDMOST output stage based on SOI BCDMOS technology. Low power dissipation enables the TDF8599B high-efficiency, class-D amplifi used with a smaller heat sink than those normally used with standard class-AB amplifiers. ...

Page 2

... V; THD = THD = THD = describes and measurement. DSon Description plastic, heatsink small outline package; 36 leads; low stand-off height Rev. 01 — 29 July 2009 TDF8599B Min Typ [ ...

Page 3

... SSM 12 MOD STABI DDD MODE 16 SELECT SCL + 15 2 SDA I C-BUS 11 ADS 36 GNDD/HW Block diagram Rev. 01 — 29 July 2009 TDF8599B STABI1 V P1 DRIVER HIGH PWM DRIVER LOW PGND1 V P1 DRIVER HIGH PWM DRIVER LOW PGND1 V P2 ...

Page 4

... BOOT2P 26 25 PGND2 BOOT2N 23 OUT2N 22 21 VSTAB2 DCP 20 OSCIO 19 Heatsink up (top view) pin configuration TDF8599BTH Pin description [1] Pin Type Description 1 I channel 1 positive audio input 2 I channel 1 negative audio input 3 I channel 2 positive audio input 4 I channel 2 negative audio input ...

Page 5

... Functional description 8.1 General The TDF8599B is a dual full bridge (BTL) audio power amplifier using class-D technology. The audio input signal is converted into a Pulse-Width Modulated (PWM) signal using the analog input and PWM control stages. A PWM signal is applied to driver circuits for both high-side and low-side enabling the DMOS power output transistors to be driven ...

Page 6

... The TDF8599B is enabled when pin EN is HIGH. When pin EN is LOW, the TDF8599B is off and the supply current is at its lowest value (typically 2 A). When off, the TDF8599B is completely deactivated and will not react to I ...

Page 7

... Pin SEL_MUTE HIGH (S1 open) LOW (S1 closed) [ has no influence on the oscillator frequency. It does osc Figure 5 connected between pins OSCSET and AGND, the TDF8599B is in Master Mode setting pin OSCIO Settings Pin OSCSET R > osc shorted to pin AGND osc Rev. 01 — ...

Page 8

... In Slave mode, an internal watchdog timer on pin OSCIO is triggered when the TDF8599B is switched off by pulling down pin EN. If the external clock fails, the watchdog timer forces the TDF8599B to switch off ...

Page 9

... SSM osc C osc 001aai773 f osc C-bus mode, this frequency can be varied by osc ). Rev. 01 — 29 July 2009 TDF8599B Equation and is calculated as 100 A 100 A OSCSET R osc SSM SSM C SSM 001aai774 b. On and 1. see Figure 7. osc 2: (2) ...

Page 10

... OSCIO pin SSM pin output C to pin AGND SSM output shorted to pin AGND input PLL input shorted to pin AGND Rev. 01 — 29 July 2009 TDF8599B Section 8.4.2 on page 13. Phase lock operation Figure , C and R depend on the desired PLL_s PLL_p PLL is given by 8.4 B PLL PLL ...

Page 11

... See C-bus mode, pin MOD is latched using the I amplifier switching interference generating incorrect information on pin MOD. In non-I one of the TDF8599B’s outputs starts switching. 8.4.1 Modulation mode In non-I Table 8 • AD modulation mode: the bridge halves switch in opposite phase. • ...

Page 12

... Product data sheet 2 I C-bus controlled dual channel class-D power amplifi INxP OUTP AD BD AD/BD modulation switching circuit INxP OUTxP INxN OUTxN Rev. 01 — 29 July 2009 TDF8599B +V P OUTN INxN 001aai778 001aai779 001aai780 © NXP B.V. 2009. All rights reserved ...

Page 13

... MOD Table 8 for selection of the phase shift in non-I Figure 8). An example of using Rev. 01 — 29 July 2009 TDF8599B 001aai781 001aai782 can be selected using the C-bus mode with pin ...

Page 14

... The inputs and outputs for Parallel mode must be connected on the Printed-Circuit Board (PCB) as shown in as shown in Fig 13. Parallel mode In Parallel mode, the channel 1 I 8.5 Protection The TDF8599B includes a range of built-in protection functions. How the TDF8599B manages the various possible fault conditions for each protection is described in the following sections: TDF8599B_1 Product data sheet 2 I C-bus controlled dual channel class-D power amplifi ...

Page 15

... TDF8599B_1 Product data sheet 2 I C-bus controlled dual channel class-D power amplifier Overview of protection types th(j-a) ) > 160 C, OverTemperature Protection (OTP Rev. 01 — 29 July 2009 TDF8599B Reference Section 8.5.1 Section 8.5.2 Section 8.5.3 Section 8.5.4 Section 8.5.5 Section 8.5.6 Section 8.5.6 create a junction temperature around the © NXP B.V. 2009. All rights reserved. ...

Page 16

... DB1[D2] is set and if bit IB1[D7] is not set, diagnostic information is also given. Any detected offset shuts down both channels when bit IB2[D7] is not set. To restart the TDF8599B must be toggled or DCP disabled by connecting pin DCP to pin AGND. ...

Page 17

... C-bus controlled dual channel class-D power amplifier 2 C-bus mode, when an offset is detected, DCP always gives diagnostic Overview of TDF8599B protection circuits and amplifier states C-bus mode deep supply voltage drops will cause a Power-On Reset (POR). The restart requires an 2 C-bus mode and non-I Rev. 01 — ...

Page 18

... AMPLIFIER RESTART pull up V AGND = C-bus mode only) 2 C-bus mode and is controlled using bit IB2[D2]. det(DCload) Rev. 01 — 29 July 2009 TDF8599B 2 2 C-bus. The I C-bus bits are set 2 C-bus read command. 2 C-bus read command is 2 C-bus latches ...

Page 19

... DRIVER LOW PGND2 out (V) out out+ t d(stb-mute) Figure 3 on page Figure 18. SPEAKER LOAD 0 25 350 Rev. 01 — 29 July 2009 TDF8599B V P OUTN OUTP 001aai787 t (s) t det(DCload) 001aai788 6) is used to create an OPEN LOAD 001aaj956 © NXP B.V. 2009. All rights reserved. ...

Page 20

... OCP bits DB1[D3] and DB2[D3 Section 8.6.2.2 “Recommended start-up sequence with DC load for detailed information. (Figure 19) illustrates the TDF8599B’s ability to perform a DC load Rev. 01 — 29 July 2009 TDF8599B Description speaker load shorted load open load © NXP B.V. 2009. All rights reserved. ...

Page 21

... DB1[D6 load valid YES 2 I C-bus TX startup disable DC load enable channel 1 enable channel 2 2 C-bus mode and is controlled using bit IB3[D4]. Rev. 01 — 29 July 2009 TDF8599B 2 I C-bus TX startup enable DC load disable channel 1 disable channel 2 restart DC load NO YES COUNTMAX ERROR HANDLING ...

Page 22

... In Master mode, the clock is kept active by an additional delay (t approximately allow slave devices to enter the off state. When an external clock is connected to pin OSCIO (in Slave mode), the clock must remain active during the shutdown sequence for delay (t TDF8599B devices are able to enter the off state. V DDA DIAG ...

Page 23

... Short circuited to ground C-bus mode, pins MOD and ADS can be latched using the I IB3[D7 This avoids disturbances from amplifier outputs of other TDF8599B devices in the same application switching and generating incorrect information on the MOD and ADS pins. TDF8599B_1 Product data sheet ...

Page 24

... NXP Semiconductors 2 In non-I latched when one of the TDF8599B’s outputs starts switching. SCL SDA M p START (1) SLAVE (1) When SCL is HIGH, SDA changes to form the start or stop condition. 2 Fig 22. I C-bus start and stop conditions SCL 1 2 SDA MSB MSB ...

Page 25

... NXP Semiconductors 9.1 Instruction bytes If R/W bit = 0, the TDF8599B expects three instruction bytes: IB1, IB2 and IB3. After a power-on reset, all unspecified instruction bits must be set to zero. Table 14. Instruction byte descriptions Bit Value Description Instruction byte IB1 D7 0 offset detection on pin DIAG ...

Page 26

... NXP Semiconductors 9.2 Data bytes If R the TDF8599B sends two data bytes to the microprocessor (DB1 and DB2). All short diagnostic and offset protection bits are latched. In addition, all bits are reset after a read operation except the DC load detection bits (DBx[D4], DB1[D6]). The default setting for all bits is logic 0 ...

Page 27

... Current limiting concept. [3] Human Body Model (HBM). [4] Charged-Device Model (CDM). [5] The output pins are defined as the output pins of the filter connected between the TDF8599B output pins and the load. TDF8599B_1 Product data sheet 2 I C-bus controlled dual channel class-D power amplifier ...

Page 28

... EN; Mute mode or Operating 2 mode; non-I C-bus mode pin SEL_MUTE; Mute mode; voltage on pin EN > pin SEL_MUTE; Operating mode; voltage on pin EN > pin EN; 2.5 V pin SEL_MUTE; Operating mode; 0.8 V Rev. 01 — 29 July 2009 TDF8599B Conditions Typ in free air 35 1 Min Typ 8 14 ...

Page 29

... Mute mode and Operating mode undervoltage; amplifier is muted overvoltage; load dump protection is activated V that a POR occurs at P current limiting concept gain = 1 dB IB2[D3 non-I IB2[D3 [7] for normal speaker load; DB1[D4 DB2[D4 DB1[D4 DB2[D4 Rev. 01 — 29 July 2009 TDF8599B Min Typ - 0.2 [2][ 2.45 2 2.45 6.9 7 ...

Page 30

... V stereo mode parallel mode Section 9 on page th(offset) Section 8.6.2.1 on page 18. The DC load enable bit IB2[D2] must be reset after each load Rev. 01 — 29 July 2009 TDF8599B Min 2 [5] C-bus - [ [6] - 200 ...

Page 31

... Spread spectrum mode activated SSM change positive; IB1[D4 IB1[D3 change negative; IB1[D4 IB1[D3 PWM output PWM output Rev. 01 — 29 July 2009 TDF8599B Min Typ Max Unit - 320 - kHz 300 - 450 kHz ...

Page 32

... LC filter in the application together with all resistance from PCB s(L) traces or wiring between the output pin of the TDF8599B and the inductor to the measurement point. LC filter dimensioning for 4 load and 2.2 F for 2 ...

Page 33

... Hz (typically 320 kHz o(2) and Figure 27 show the estimated output power at THD = 0.5 % and Rev. 01 — 29 July 2009 Equation 2 f osc --------- - V w min 1. TDF8599B 5: (5) where o 1 © NXP B.V. 2009. All rights reserved ...

Page 34

... TDF8599B_1 Product data sheet 2 I C-bus controlled dual channel class-D power amplifier 001aak225 ( ( 0. (minimum). in stereo mode with Fig 27. P Rev. 01 — 29 July 2009 TDF8599B ( ( THD = 0.19 ( 100 C), R DSon ...

Page 35

... P = 0.025 , (minimum). in parallel mode with Fig 29 DSon s = on-resistance of power switch ( ) speaker can be used with a supply voltage before current limiting Rev. 01 — 29 July 2009 TDF8599B 180 o 150 120 (1) 90 ( THD = 0.1 ...

Page 36

... Remark: When using a 1 after the low-pass filter switches two 2 14.5 Heat sink requirements In most applications necessary to connect an external heat sink to the TDF8599B. Thermal foldback activates at T between the maximum power dissipation before activation of thermal foldback and the total thermal resistance from junction to ambient: ...

Page 37

... 001aak229 THD + N (%) (W) o (1) V (2) V (3) V Fig 31. THD + function of output power with a Rev. 01 — 29 July 2009 TDF8599B (audio with crest factor of 10 (3) 1 ( kHz 14.4 V ...

Page 38

... V Fig 33. THD + function of output power with a 001aak238 THD + N (%) (Hz) (1) V (2) V Fig 35. THD + function of frequency with 14 Rev. 01 — 29 July 2009 TDF8599B (3) 1 ( kHz ...

Page 39

... Fig 37. Gain as a function of frequency = 001aak243 (1) P (W) (2) ( (V) P (1) THD = 10 %. (2) THD = 3 %. (3) THD = 1 %. Fig 39. Output power as a function of supply voltage Rev. 01 — 29 July 2009 TDF8599B kHz ...

Page 40

... Fig 41. Channel separation as a function of frequency 001aak246 100 (%) ( (W) o (1) R (2) R Fig 43. Efficiency as a function of total output power = 14 Rev. 01 — 29 July 2009 TDF8599B 14 with 10 W output power, BD modulation ( ...

Page 41

... P (W) o (1) R (2) R Fig 45. Efficiency as a function of total output power = CMRR (dB Rev. 01 — 29 July 2009 TDF8599B 100 ( with both channels driven; V 001aak250 ...

Page 42

... OUT1N IN2N 470 ACGND BOOT1N ACGND 32 5 100 SEL_MUTE PGND1 30 7 BOOT1P SVRR 29 8 OUT1P AGND 28 9 TDF8599B 2 OUT2P DDA 27 10 bead BOOT2P ADS 26 11 4.7 k PGND2 MOD CLIP BOOT2N DIAG 23 14 ...

Page 43

... C ACGND BOOT1N ACGND 32 5 100 100 nF (1) SEL_MUTE PGND1 30 7 BOOT1P SVRR 29 8 OUT1P AGND 28 9 TDF8599B 2 OUT2P DDA 27 10 bead R ADS BOOT2P ADS PGND2 MOD 25 12 100 CLIP BOOT2N ...

Page 44

... C ACGND BOOT1N ACGND 32 5 100 100 nF (1) SEL_MUTE PGND1 30 7 BOOT1P SVRR 29 8 OUT1P AGND 28 9 TDF8599B 2 OUT2P DDA 27 10 bead R ADS BOOT2P ADS PGND2 MOD 25 12 100 CLIP BOOT2N ...

Page 45

... 100 nF (1) SEL_MUTE PGND1 30 7 PGND1 470 nF BOOT1P SVRR OUT1P AGND 28 9 TDF8599B 2 OUT2P DDA SLAVE bead R ADS 2 I C-bus BOOT2P ADS 26 11 address select 33 k PGND2 MOD parallel mode 25 12 ...

Page 46

... 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. 01 — 29 July 2009 detail 14.5 1.1 1.7 0.65 0.25 0.12 13.9 0.8 1.5 EUROPEAN PROJECTION TDF8599B SOT851 2.55 8 0.03 0.07 2.20 0 ISSUE DATE 04-05-04 © NXP B.V. 2009. All rights reserved ...

Page 47

... Inspection and repair • Lead-free soldering versus SnPb soldering 17.3 Wave soldering Key characteristics in wave soldering are: TDF8599B_1 Product data sheet 2 I C-bus controlled dual channel class-D power amplifier Rev. 01 — 29 July 2009 TDF8599B © NXP B.V. 2009. All rights reserved ...

Page 48

... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 52. Rev. 01 — 29 July 2009 TDF8599B Figure 52) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 250 245 245 245 © NXP B.V. 2009. All rights reserved. ...

Page 49

... N-type double Diffused Metal-Oxide Semiconductor Transistor OverCurrent Protection OverTemperature Protection OverVoltage Protection Power-On Reset Pulse-Width Modulation Silicon On Insulator Thermal Foldback Protection UnderVoltage Protection Window Protection Rev. 01 — 29 July 2009 TDF8599B peak temperature time 001aac844 © NXP B.V. 2009. All rights reserved ...

Page 50

... Revision history Document ID Release date TDF8599B_1 20090729 TDF8599B_1 Product data sheet 2 I C-bus controlled dual channel class-D power amplifier Data sheet status Change notice Product data sheet - Rev. 01 — 29 July 2009 TDF8599B Supersedes - © NXP B.V. 2009. All rights reserved ...

Page 51

... Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners C-bus — logo is a trademark of NXP B.V. http://www.nxp.com salesaddresses@nxp.com Rev. 01 — 29 July 2009 TDF8599B © NXP B.V. 2009. All rights reserved ...

Page 52

... Table 12. Interpretation of DC load detection bits . . . . . .20 2 Table 13. I C-bus write address selection using 23. Figures Fig 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Fig 2. Heatsink up (top view) pin configuration TDF8599BTH Fig 3. Mode selection Fig 4. Clock frequency as a function of R Fig 5. Master and slave configuration . . . . . . . . . . . . . . .8 Fig 6. Spread spectrum mode . . . . . . . . . . . . . . . . . . . . .9 Fig 7 ...

Page 53

... Fig 52. Temperature profiles for large and small components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 TDF8599B_1 Product data sheet 2 I C-bus controlled dual channel class-D power amplifi C-bus Rev. 01 — 29 July 2009 TDF8599B © NXP B.V. 2009. All rights reserved ...

Page 54

... 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. 2009. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com TDF8599B All rights reserved. Date of release: 29 July 2009 Document identifier: TDF8599B_1 ...

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