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AB类功放
产品名称：AXPA17850 4 x 50W AB类
型号： AXPA17850
产片介绍：DescriptionAXPA17850 is an automotive quad bridge class AB car radio audio power amplifier designed in BCD(Bipolar, CMOS, DMOS) technology with a fully complemen
产片介绍：DescriptionAXPA17850 is an automotive quad bridge class AB car radio audio power amplifier designed in BCD(Bipolar, CMOS, DMOS) technology with a fully complemen
┄┄┄详细介绍┄┄┄
Description
AXPA17850 is an automotive quad bridge class AB car radio audio power amplifier designed in BCD
(Bipolar, CMOS, DMOS) technology with a fully complementary P-Channel/N-Channel output structure.
It has a rail to rail output voltage swing, high output current and minimized saturation losses, giving it an
excellent unparalleled distortion performance. AXPA17850 can operate down to 6V for low voltage
operation to achieve 'start-stop' battery profile during engine stop enabling reduction in overall emissions.
Features
▪ Multipower BCD technology with DMOS
MOSFET output power stage
▪ Excellent 2 Ω driving capability
▪ Hi-Fi class low distortion
▪ Low output noise
▪ High immunity to RF noise injection
▪ Standby function
▪ Mute function
▪ Auto-mute at min. supply voltage detection
▪ Low external component count
▪ Internally fixed gain (26 dB)
▪ No external compensation
▪ No bootstrap capacitors
▪ Capable to operate down to 6V (e.g. “start
stop”)
▪ High output power capability:
▪ 4 x 50 W/4 Ω max.
▪ 4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
▪ 4 x 80 W/2 Ω max.
▪ 4 x 55 W/2 Ω @ 14.4V, 1 kHz, 10 %
▪
Protections:
▪ Output short circuit to GND, to Vs, across
the load
▪ Very inductive loads
▪ Overrating chip temperature with soft
thermal limiter
▪ Output DC Offset detection
▪ Output Clipping detection
▪ Load dump
▪ Fortuitous open Ground
▪ Reversed Battery
▪ ESD
