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CS4412A-CNZR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
4 DS786A2
CS4412A
RAMP_CAP
24
Output Ramp Capacitor (Input) - Used by the PWM PopGuard Transient Control to suppress the
initial pop in half-bridge-configured outputs.
GND
10,13
14,15
16,17
18,19
20,47
48
Ground (Input) - Ground for the internal logic and I/O. These pins should be connected to the
common system ground.
VP
25,30
31,36
High Voltage Output Power (Input) - High voltage power supply for the individual output power
half-bridge devices.
PGND
22,23
27,28
33,34
37,38
39,40
Power Ground (Input) - Ground for the individual output power half-bridge devices. These pins
should be connected to the common system ground.
OUT4
OUT3
OUT2
OUT1
26
29
32
35
PWM Output (Output) - Amplified PWM power outputs.
TWR
41
Thermal Warning Output (Output) - Thermal warning output. Open drain, active low. See
“Device Protection and Error Reporting” on page 19.
ERRUVTE
42
Thermal and Under-voltage Error Output (Output) - Error flag for thermal shutdown and under-
voltage. Open drain, active low. See “Device Protection and Error Reporting” on page 19
ERROC12
ERROC34
43
44
Over-current Error Output (Output) - Over-current error flag for the associated outputs. Open
drain, active low. See “Device Protection and Error Reporting” on page 19.
RAMP
45
Ramp-up/down Select (Input) - Set high to enable ramping. When set low, ramping is disabled.
See “PWM Popguard Transient Control” on page 13.
Thermal Pad
-
Thermal Pad - Thermal relief pad for optimized heat dissipation. See “QFN Thermal Pad” on
page 20 for more information.
Pin Name Pin # Pin Description
DS786A2 5
CS4412A
2. CHARACTERISTICS AND SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS
GND = PGND = 0 V, all voltages with respect to ground.
ABSOLUTE MAXIMUM RATINGS
GND = PGND = 0 V; all voltages with respect to ground.
WARNING: Operation beyond these limits may result in permanent damage to the device. Normal operation is not
guaranteed at these extremes.
Notes: 1. Any pin except supplies. Transient currents of up to ±100 mA on the PWM input pins will not cause
SCR latch-up.
2. The maximum over/under voltage is limited by the input current.
Parameters Symbol Min Nom Max Units
DC Power Supply
Digital Core VD 2.375 2.5 2.625 V
VD 3.135 3.3 3.465 V
VD 4.75 5.0 5.25 V
Power Stage VP 8.0 18.0 V
Temperature
Ambient Temperature Commercial T
A
-10 - +70 °C
Junction Temperature T
J
-10 - +125 °C
Parameters Symbol Min Max Units
DC Power Supply
Power Stage Outputs Switching and Under Load
Power Stage No Output Switching
Digital Core
VP
VP
VD
-0.3
-0.3
-0.3
19.8
23.0
6.0
V
V
V
Inputs
Input Current (Note 1)I
in
-±10mA
Digital Input Voltage (Note 2)V
IND
-0.3 VD + 0.4 V
Temperature
Ambient Operating Temperature - Power Applied
Commercial T
A
-20 +85 °C
Storage Temperature T
stg
-65 +150 °C
6 DS786A2
CS4412A
PWM POWER OUTPUT CHARACTERISTICS
Test Conditions (unless otherwise specified): GND = PGND = 0 V; All voltages with respect to ground; T
A
= 25°C;
VD = 3.3 V; VP = 18 V; R
L
=8Ω for full-bridge, R
L
=4Ω for half-bridge and parallel full-bridge; PWM Switch
Rate = 384 kHz; 10 Hz to 20 kHz Measurement Bandwidth; Input source is CS4525 PWM_SIG outputs; Perfor-
mance measurements taken with a full-scale 997 Hz sine wave, an AES17 measurement filter; Half-Bridge mea-
surements taken through the Half-Bridge Output Filter shown in Figure 5; Stereo Full-Bridge and Parallel Full-
Bridge measurements taken through the Full-Bridge Output Filter shown in Figure 6;.
Parameters Symbol Conditions Min Typ Max Units
Power Output per Channel
Stereo Full-Bridge
Half-Bridge
Parallel Full-Bridge
P
O
THD+N < 10%
THD+N < 1%
THD+N < 10%
THD+N < 1%
THD+N < 10%
THD+N < 1%
-
-
-
-
-
-
15
12
7.5
5.5
30
23.5
-
-
-
-
-
-
W
W
W
W
W
W
Total Harmonic Distortion + Noise
Stereo Full-Bridge
Half-Bridge
Parallel Full-Bridge
THD+N
P
O
= 1 W
P
O
= 0 dBFS = 11.3 W
P
O
= 1 W
P
O
= 0 dBFS = 5.0 W
P
O
= 1 W
P
O
= 0 dBFS = 22.6 W
-
-
-
-
-
-
0.08
0.10
0.12
0.19
0.1
0.3
-
-
-
-
-
-
%
%
%
%
%
%
Dynamic Range
Stereo Full-Bridge
Half-Bridge
Parallel Full-Bridge
DYR
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
-
-
-
-
-
-
102
99
102
97
102
99
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
MOSFET On Resistance R
DS(ON)
I
d
= 0.5 A, T
J
=50°C - 280 - mΩ
Efficiency h P
O
= 2 x 15 W, R
L
= 8 Ω -85-%
Minimum Output Pulse Width PW
min
No Load - 25 - ns
Rise Time of OUTx t
r
Resistive Load - 10 - ns
Fall Time of OUTx t
f
Resistive Load - 5 - ns
PWM Output Over-Current Error Trigger Point
I
CE
T
A
=25°C, OCREF = 16.2 kΩ
T
A
=25°C, OCREF = 18 kΩ
T
A
=25°C, OCREF = 22 kΩ
-
-
-
2.5
2.1
1.7
-
-
-
A
A
A
Junction Thermal Warning Trigger Point T
TW
- 105 - °C
Junction Thermal Error Trigger Point T
TE
- 125 - °C
VP Under-Voltage Error Falling Trigger Point V
UVFALL
T
A
=25°C-4.74.9V
VP Under-Voltage Error Rising Trigger Point V
UVRISE
T
A
=25°C - 4.95 5.4 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

CS4412A-CNZR

Mfr. #:
Buy CS4412A-CNZR
Manufacturer:
Cirrus Logic
Description:
Audio Amplifiers IC 30W Qd Hlf-Brdg Dgtl Amp PWR Stage
Lifecycle:
New from this manufacturer.
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