CS4412A Datasheet, PDF (4/24 Pages) Cirrus Logic – 30 W Quad Half-Bridge Digital Amplifier Power Stage

Pin Name
RAMP_CAP
GND
VP
PGND
OUT4
OUT3
OUT2
OUT1
TWR
ERRUVTE
ERROC12
ERROC34
RAMP
Thermal Pad
CS4412A
Pin #
24
10,13
14,15
16,17
18,19
20,47
48
25,30
31,36
22,23
27,28
33,34
37,38
39,40
26
29
32
35
41
42
43
44
45
-
Pin Description
Output Ramp Capacitor (Input) - Used by the PWM PopGuard Transient Control to suppress the
initial pop in half-bridge-configured outputs.
Ground (Input) - Ground for the internal logic and I/O. These pins should be connected to the
common system ground.
High Voltage Output Power (Input) - High voltage power supply for the individual output power
half-bridge devices.
Power Ground (Input) - Ground for the individual output power half-bridge devices. These pins
should be connected to the common system ground.
PWM Output (Output) - Amplified PWM power outputs.
Thermal Warning Output (Output) - Thermal warning output. Open drain, active low. See
“Device Protection and Error Reporting” on page 19.
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
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-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 relief pad for optimized heat dissipation. See “QFN Thermal Pad” on
page 20 for more information.
4
DS786A1