VA2228 Overview
AVDD VREG SD_B MUTE Swing Reference Regulator TTL Buffer LINP Gain Adjust LINN Gain Adjust AGND Power Limit Gate Driver PWM Logic VREG Gate Driver Ramp Generator Biases & References Startup Protection Logic SC Detect Thermal Protect DC Detect UVLO/OCLO VREG Power Limit Gate Driver PWM Logic VREG Gate Driver BSPR PVDDR ROUTP PVSSR BSNR PVDDR ROUTN PVSSR BSPL PVDDL LOUTP PVSSL BSNL PVDDL LOUTN PVSSL VA2228 Rev A.00 2 http://.viva-elec..tw VA2228 Pin Assignments And Descriptions SD_B NC GAIN AVDD AGND VREG PLIMIT RINN RINP MUTE NC LINP LINN NC GAIN AVDD AGND VREG
VA2228 Key Features
- Operation voltage from 6V to 26V
- Excellent EMI performance
- Maximum 88% efficiency with an 8Ω speaker
- 26dB or 36dB selectable gain settings
- Mute control for eliminating pop noise
- Scalable power limit function
- Speaker DC detection and protection
- Thermal protection with Auto-recovery
- Short circuit and thermal protection
- RoHS 2.0 pliant TSSOP-28 green pack