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FDA4100LV
4 x 135 W / 2 x 270 W PWM digital input power amplifier
with I2C diagnostics, step-up driver and low voltage operation
Data brief - production data
 ESD protection
 6 V operation (“start - stop”)
Description
'!0'03
HiQUAD-92 (slug-up)
The FDA4100LV is a new BCD- SOI (silicon on
insulation) technology QUAD BRIDGE class D
amplifier, specially intended for car radio
applications.
Features
 Integrated 108 dB D/A conversion
 I2S and TDM digital input (3.3/1.8 V)
 Input sampling frequency: 44.1kHz, 48 kHz,
96 kHz, 192 kHz
 MOSFET power outputs
 Step-up driver included
 EMI control for FM/AM compatibility
 EMI compliance at the CEI EN 55025 (200910)
 Dithering possibility
 Very low component count
 Output lowpass filter included in the feedback
 Low radiation function (LRF)
 High output power capability
– 4 x 85 W/4  @ 25 V, 1 kHz, 10 % THD
– 2 x 150 W/2  @ 25 V, 1 kHz, 10 % THD
 Max. output power
– 4 x 135 W/4  @ 25 V, 1 kHz
– 2 x 270 W/2  @ 25 V, 1 kHz
 Full I2C bus driving (3.3/1.8 V):
– Independent front/rear soft play/ mute
– I2C diagnostics (DC and AC load detection,
internal test signal generated)
 Very flexible fault detection though integrated
diagnostic
Thanks to the technology used, it is possible to
integrate a high performance D/A converter
together with powerful MOSFET outputs in class
D, to get an outstanding efficiency compared with
to the standard class AB.
The integrated D/A converter allows to reach
outstanding performances (110 dB S/N ratio with
108 dB of dynamic range). The feedback loop is
including the output L-C low-pass filter, allowing
superior frequency response linearity and lower
distortion independently of the inductor and
capacitor quality.
FDA4100LV is fully configurable through I2C bus
interface and integrates a full diagnostics array
specially intended for automotive applications
(with the status of each single speaker).
Thanks to the solutions implemented to solve the
EMI problems, the device is conceived to be used
in the standard single DIN car-radio box together
with the tuner.
The possibility to parallelize the outputs allows to
drive both 2  and 1  speakers.
A built-in step-up driver allows to provide high
output power even using the standard 14 V
supply voltage.
Moreover FDA4100LV is able to work down to 6 V
supply, thus supporting the most recent low
voltage ('start-stop') car-makers specification.
 Offset detector (play or mute mode)
Table 1. Device summary
 Four independent short circuit protection
 Clipping detector
 C-MOS compatible enable pin (3.3/5 V)
September 2013
Order code
Package
Packing
FDA4100LV
HiQUAD92
Tray
DocID025019 Rev 2
This is information on a product in full production. For further information contact your local STMicroelectronics sales
office.
1/9
www.st.com
Contents
FDA4100LV
Contents
1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2/9
DocID025019 Rev 2
FDA4100LV
1
Block diagram
Block diagram
Figure 1. Block diagram
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&EEDBACK 'ND
6DD
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6DD
6DD
6DD
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DocID025019 Rev 2
'!0'03
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9
Pins description
2
FDA4100LV
Pins description
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Figure 2. Pins connection diagram (top view)
.#
.#
.#
.#
'ND
'ND
&EEDBACK
&EEDBACK
/UT
/UT
/UT
/UT
6DD
6DD
6DD
6DD
/UT
/UT
/UT
/UT
&EEDBACK
&EEDBACK
'ND
'ND
'ND
'ND
&EEDBACK
&EEDBACK
/UT
/UT
/UT
/UT
6DD
6DD
6DD
6DD
/UT
/UT
/UT
/UT
&EEDBACK
&EEDBACK
'ND
'ND
.#
35'ND
)3#,+
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6BAT
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Pin name
1
N.C.
Not connected
2
N.C.
Not connected
3
Gnd2-
4
4/9
Function
Channel 2, half bridge power ground -
Feedback2- Channel 2 half bridge feedback -
5
Out2-
Channel 2 half bridge output -
6
Out2-
Channel 2 half bridge output -
DocID025019 Rev 2
%NABLE
'!0'03
Table 2. Pins list description
Pin #
(HiQUAD-92)
!6DD
$6DD
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362
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FDA4100LV
Pins description
Table 2. Pins list description (continued)
Pin #
(HiQUAD-92)
Pin name
7
Vdd2-
Channel 2 half bridge power supply -
8
Vdd2+
Channel 2 half bridge power supply +
9
Out2+
Channel 2 half bridge output +
10
Out2+
Channel 2 half bridge output +
11
Function
Feedback2+ Channel 2 half bridge feedback +
12
Gnd2+
Channel 2, half bridge power ground +
13
Gnd1-
Channel 1, half bridge power ground -
14
Feedback1- Channel 1 half bridge feedback -
15
Out1-
Channel 1 half bridge output -
16
Out1-
Channel 1 half bridge output -
17
Vdd1-
Channel 1 half bridge power supply -
18
Vdd1+
Channel 1 half bridge power supply +
19
Out1+
Channel 1 half bridge output +
20
Out1+
Channel 1 half bridge output +
21
Feedback1+ Channel 1 half bridge feedback +
22
Gnd1+
Channel 1, half bridge power ground +
23
SU-Gnd
Step-up power ground
24
Gate-Drive
25
Vbat
26
Comp
Step-up compensation input
27
I1
Step-up current limiting input
28
I2
Step-up current limiting reference
29
Enable3
30
A-Vdd
Analog power supply
31
D-Vdd
Digital power supply
32
A-Gnd
Analog ground
33
An-P
Positive analog supply V(svr)+1.65 (internally generated)
34
An-N
Negative analog supply V(svr)-1.65 (internally generated)
35
SVR
Supply voltage ripple rejection capacitor
36
IsetProt
Current protection resistor setting
37
ExtTher
External thermal protection input
38
Dig-N
Negative digital supply V(svr)-1.65 (internally generated)
39
Dig-P
Positive digital supply V(svr)+1.65 (internally generated)
40
D-Gnd
Digital ground
41
Mute
External PowerMOS gate drive output
Power supply (battery)
Chip enable 3
Mute input (10 µA source current)
DocID025019 Rev 2
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9
Pins description
FDA4100LV
Table 2. Pins list description (continued)
Pin #
(HiQUAD-92)
Pin name
42
PLL_Filter
43
Enable 1
Chip enable 1
44
Enable 2
Chip enable 2
45
CD/DIAG
Clip detector and diagnostic output: overcurrent protection, thermal
warning, offset detection
46
I2C-Data
I2C data input
47
I2C-Clock
I2C data Clock
48
I2S-Data1
I2S/TDM data 1 Input
49
I2S-Data2
I2S/TDM data 2 Input
50
I2S-Sinc
I2S/TDM sinc Input DRAFT
51
I2S-CLK
I2S/TDM clock Input
52
N.C.
53
Gnd4+
54
PLL filter network
Not connected
Channel 4, half bridge Power Ground +
Feedback4+ Channel 4 half bridge Feedback +
55
Out4+
Channel 4 half bridge Output +
56
Out4+
Channel 4 half bridge Output +
57
Vdd4+
Channel 4 half bridge Power Supply +
58
Vdd4-
Channel 4 half bridge Power Supply -
59
Out4-
Channel 4 half bridge Output -
60
Out4-
Channel 4 half bridge Output -
61
Feedback4- Channel 4 half bridge Feedback -
62
Gnd4-
Channel 4, half bridge Power Ground -
63
Gnd3+
Channel 3, half bridge Power Ground +
64
Feedback3+ Channel 3 half bridge Feedback +
65
Out3+
Channel 3 half bridge Output +
66
Out3+
Channel 3 half bridge Output +
67
Vdd3+
Channel 3 half bridge Power Supply +
68
Vdd3-
Channel 3 half bridge Power Supply -
69
Out3-
Channel 3 half bridge Output -
70
Out3-
Channel 3 half bridge Output -
71
6/9
Function
Feedback3- Channel 3 half bridge Feedback -
72
Gnd3-
Channel 3, half bridge Power Ground -
73, 74
N.C.
75
TAB
-
76-92
N.C.
Not connected
Not connected
DocID025019 Rev 2
FDA4100LV
3
Package information
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Figure 3. HiQUAD-92 (slug-up) mechanical data and package dimensions
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DocID025019 Rev 2
7/9
9
Revision history
4
FDA4100LV
Revision history
Table 3. Document revision history
8/9
Date
Revision
Changes
19-Jul-2013
1
Initial release.
18-Sep-2013
2
Updated Disclaimer.
DocID025019 Rev 2
FDA4100LV
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