TDF8599C
I
2
C-bus controlled stereo class-D amplifier 136 W/8
with full
diagnostics
Rev. 1 — 5 August 2011
Product short data sheet
1. General description
The TDF8599C 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 TDF8599C high-efficiency, class-D amplifier to be used with a
smaller heat sink than those normally used with standard class-AB amplifiers.
The TDF8599C can operate in either non-I
2
C-bus mode or I
2
C-bus mode. When in
I
2
C-bus mode, DC load detection results and fault conditions can be easily read back from
the device. Up to 15 I
2
C-bus addresses can be selected depending on the value of the
external resistors connected to pins ADS and MOD.
When pin ADS is short circuited to ground, the TDF8599C operates in non-I
2
C-bus mode.
Switching between Operating mode and Mute mode in non-I
2
C-bus mode is only possible
using pins EN and SEL_MUTE.
2. Features and benefits
High-efficiency
Low quiescent current
Operating voltage from 8 V to 48 V
Two 8
/6
capable BTL channels or one 4
/3
capable BTL channel
Differential inputs
Fast-mode I
2
C-bus
I
2
C-bus mode with 15 I
2
C-bus addresses or non-I
2
C-bus mode operation
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
Advanced clocking:
Switchable oscillator clock source: internal for Master mode or external for Slave
mode
PLL mode to synchronize with external oscillator
Spread spectrum mode
Phase staggering
Frequency hopping
NXP Semiconductors
TDF8599C
I
2
C-bus controlled stereo class-D amplifier
No ‘pop noise’ caused by DC output offset voltage
I
2
C-bus mode:
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 protections or warnings
Selectable diagnostic information available using pins DIAG and CLIP
Selectable gain 32 dB/26 dB (32 dB in non-I
2
C-bus mode)
Qualified in accordance with AEC-Q100
3. Applications
Car audio
Audio entertainment systems
4. Quick reference data
Table 1.
Symbol
V
P
I
P
I
q
Quick reference data
Parameter
supply voltage
supply current
quiescent current
off state; V
EN
< 0.8 V
no load, snubbers and output filter
connected
R
L
= 8
;
THD = 10 %
R
L
= 6
;
THD = 10 %
Output power in parallel mode; V
P
= 48 V
P
o
output power
R
L
= 4
;
THD = 10 %
R
L
= 3
;
THD = 10 %
-
-
270
300
-
-
W
W
Conditions
Min
8
-
-
Typ
40
3
90
Max
48
10
120
Unit
V
A
mA
General; V
P
= 40 V
Output power in stereo mode; V
P
= 48 V
P
o
output power
-
-
136
155
-
-
W
W
5. Ordering information
Table 2.
Ordering information
Package
Name
TDF8599CTH
HSOP36
Description
plastic, heatsink small outline package; 36 leads; low stand-off height
Version
SOT851-2
Type number
TDF8599C_SDS
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product short data sheet
Rev. 1 — 5 August 2011
2 of 41
NXP Semiconductors
TDF8599C
I
2
C-bus controlled stereo class-D amplifier
6. Block diagram
V
DDA
10
9
8
DRIVER
HIGH
PWM
CONTROL
IN1P
1
DRIVER
LOW
PGND1
V
P1
IN1N
2
PWM
CONTROL
DRIVER
LOW
ACGND
5
+
V
P1
31
V
P2
24
AGND
SVRR
STABI1
34
32
V
P1
VSTAB1
BOOT1N
TDF8599C
33
OUT1N
29
BOOT1P
DRIVER
HIGH
28
OUT1P
PGND1
V
P2
DRIVER
HIGH
PWM
CONTROL
23
BOOT2N
22
DRIVER
LOW
PGND2
V
P2
26
OUT2N
IN2P
3
BOOT2P
IN2N
4
PWM
CONTROL
DRIVER
HIGH
27
DRIVER
LOW
OUT2P
OSCSET
OSCIO
SSM
MOD
V
DDD
EN
SEL_MUTE
SCL
SDA
ADS
18
19
17
12
35
6
7
16
15
11
36
GNDD/HW
14
DIAG
13
20
30
PGND1
MODE
SELECT
+
I
2
C-BUS
DIAGNOSTICS
OSCILLATOR
PGND2
5 V STABI
STABI2
21
VSTAB2
PROTECTION
OVP, OCP, OTP
UVP, TF, WP, DCP
25
PGND2
001aao367
CLIP DCP
Fig 1.
Block diagram
TDF8599C_SDS
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product short data sheet
Rev. 1 — 5 August 2011
3 of 41
NXP Semiconductors
TDF8599C
I
2
C-bus controlled stereo class-D amplifier
7. Pinning information
7.1 Pinning
GNDD/HW 36
V
DDD
35
VSTAB1 34
OUT1N 33
BOOT1N 32
V
P1
31
PGND1 30
BOOT1P 29
OUT1P 28
OUT2P 27
BOOT2P 26
PGND2 25
V
P2
24
BOOT2N 23
OUT2N 22
VSTAB2 21
DCP 20
OSCIO 19
001aao368
1
2
3
4
5
6
7
8
IN1P
IN1N
IN2P
IN2N
ACGND
EN
SEL_MUTE
SVRR
AGND
TDF8599CTH
9
10 V
DDA
11 ADS
12 MOD
13 CLIP
14 DIAG
15 SDA
16 SCL
17 SSM
18 OSCSET
Fig 2.
Heatsink up (top view) pin configuration TDF8599CTH
7.2 Pin description
Table 3.
Symbol
IN1P
IN1N
IN2P
IN2N
ACGND
EN
Pin description
Pin
1
2
3
4
5
6
Type
[1]
I
I
I
I
I
I
Description
channel 1 positive audio input
channel 1 negative audio input
channel 2 positive audio input
channel 2 negative audio input
decoupling for input reference voltage
enable input:
non-I
2
C-bus mode: switch between off and Mute mode
I
2
C-bus mode: off and Standby mode
SEL_MUTE
SVRR
AGND
V
DDA
ADS
MOD
TDF8599C_SDS
7
8
9
10
11
12
I
I
G
P
I
I
select mute or unmute
decoupling for internal half supply reference voltage
analog supply ground
analog supply voltage
non-I
2
C-bus mode: connected to ground
I
2
C-bus mode: address selection pin
modulation mode, phase shift and parallel mode select
© NXP B.V. 2011. All rights reserved.
All information provided in this document is subject to legal disclaimers.
Product short data sheet
Rev. 1 — 5 August 2011
4 of 41
NXP Semiconductors
TDF8599C
I
2
C-bus controlled stereo class-D amplifier
Pin description
…continued
Pin
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
G
O
G
P
O
O
P
G
O
I/O
I
Type
[1]
O
O
I/O
I
Description
clip output; open-drain
diagnostic output; open-drain
I
2
C-bus data input and output
I
2
C-bus clock input
master setting: Spread spectrum mode frequency
slave setting: phase lock operation
master/slave oscillator setting
master only setting: set internal oscillator frequency
master setting: internal oscillator output
slave setting: external oscillator input
DC protection input for the filtered output voltages
decoupling internal stabilizer 2 for DMOST drivers
channel 2 negative PWM output
bootstrap capacitor for channel 2 negative
channel 2 power supply voltage
channel 2 power ground
bootstrap capacitor for channel 2 positive
channel 2 positive PWM output
channel 1 positive PWM output
bootstrap capacitor for channel 1 positive
channel 1 power ground
channel 1 power supply voltage
bootstrap capacitor for channel 1 negative
channel 1 negative PWM output
decoupling internal stabilizer 1 for DMOST drivers
decoupling of the internal 5 V logic supply
ground digital supply voltage
handle wafer connection
Table 3.
Symbol
CLIP
DIAG
SDA
SCL
SSM
OSCSET
OSCIO
DCP
VSTAB2
OUT2N
BOOT2N
V
P2[2]
PGND2
BOOT2P
OUT2P
OUT1P
BOOT1P
PGND1
V
P1[2]
BOOT1N
OUT1N
VSTAB1
V
DDD
GNDD/HW
[1]
[2]
I = input, O = output, I/O = input/output, G = ground and P = power supply.
In this data sheet supply voltage V
P
describes V
P1
, V
P2
and V
DDA
.
TDF8599C_SDS
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product short data sheet
Rev. 1 — 5 August 2011
5 of 41
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