Quad Half-Bridge Digital Amplifier Power Stage - Cirrus Logic
Description
www.
DataSheet4U.
com
CS4412A 30 W Quad Half-Bridge Digital Amplifier Power Stage
Features
Configurable Outputs (10% THD+N)
Common Applications
Integrated Digital Televisions Portable Media Player Docking Stations Mini/Micro Shelf Systems Powered Desktop Speakers
– – – –
2 x 15 W into 8 Ω, Full-Bridge 1 x 30 W into 4 Ω, Parallel Full-Bridge 4 x 7 W into 4 Ω, Half-Bridge 2 x 7 W into 4 Ω, Half-Bridge + 1 x 15 W into 8 Ω, Full-Bridge No External Heat Sink Required
General Description
The CS4412A is a high-efficiency power stage for digital Class-D amplifiers designed to input PWM signals from a modulator such as the CS4525.
The power stage outputs can be configured as four half-bridge channels, two half-bridge channels and one full-bridge channel, two full-bridge channels, or one parallel full-bridge channel.
The CS4412A integrates on-chip over-current, undervoltage, over-temperature protection and error reporting as well as a thermal warning indicator.
The low RDS(ON) outputs can source up to 2.
5 A peak current, delivering high efficiency which allows small device package and lower power supplies.
The CS4412A is available in a 48-pin QFN package in Commercial grade (-10 to +70° C).
The CRD4412A customer reference design is also available.
Please refer to “Ordering Information” on page 24 for complete ordering information.
Space-Efficient Thermally-Enhanced QFN
–
> 100 dB Dynamic Range - System Level < 0.
1% THD+N @ 1 W - System Level Built-In Protection with Error Reporting
– – –
Over-Current Thermal Warning and Overload Under-Voltage
+8 V to +18 V High Voltage Supply PWM Popguard® for Quiet Startup No Bootstrap Required Low Quiescent Current Low Power Standby Mode
2.
5 V to 5 V
8 V to 18 V
VP
In 1 In 2 In 3 In 4 Reset Hardware Configuration Current & Thermal Data
Mode Configuration
Non-Overlap Time Insertion Non-Overlap Time Insertion
Gate Drive Gate Drive
Amplifier Out 1 Amplifier Out 2
Control Logic
Non-Overlap Time Inse...
Similar Datasheet
