MAX4295EEE Maxim Integrated Products, MAX4295EEE Datasheet
MAX4295EEE
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MAX4295EEE Summary of contents
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... Logic-Programmable PWM Frequency Selection (125kHz, 250kHz, 500kHz, 1MHz) ♦ Low-Power Shutdown Mode ♦ Clickless Transitions Into and Out of Shutdown ♦ 1A Current Limit and Thermal Protection ♦ Available in Space-Saving Packages 16-Pin QSOP or Narrow SO MAX4295EEE Applications MAX4295ESE Pin Configuration appears at end of data sheet AOUT ...
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier ABSOLUTE MAXIMUM RATINGS GND or PGND....................................-0. PGND to GND.....................................................................±0. .......................................................................±0. VCM, SS, AOUT GND .......................-0. ...
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ELECTRICAL CHARACTERISTICS (continued) = +5V, SHDN = FS1 = GND, FS2 = otherwise noted. Typical values are T A PARAMETER Input Voltage Range V CC Maximum Output Power V CC Total ...
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier = +3V, input amplifier gain = -1, SHDN = TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT FREQUENCY ( ...
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SHDN = TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT FREQUENCY (V = 1. 4Ω L 1MHz 125kHz 1 ...
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier = +3V, input amplifier gain = -1, SHDN = EFFICIENCY vs. OUTPUT POWER (f = 1kHz) IN 100 500kHz 250kHz 1MHz 60 50 ...
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SHDN = OSCILLATOR FREQUENCY DEVIATION vs. SUPPLY VOLTAGE 0.015 0.010 125kHz 0.005 0 -0.005 -0.010 250kHz 500kHz -0.015 -0.020 1MHz -0.025 2.5 3.0 3.5 4.0 SUPPLY VOLTAGE ...
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier AOUT IN ✕ 0 (VCM) FS1 PWM OSC FS2 SS POWER MANAGEMENT AND PROTECTION CSS Figure 1. Functional Diagram Detailed Description The MAX4295 switch-mode, Class D audio power amplifier is ...
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Figure 2. PWM Waveforms FS1 and FS2 program the oscillator to a frequency of 125kHz, 250kHz, 500kHz, and 1MHz. The sawtooth oscillator swings between GND and 0.6 input signal is typically AC-coupled to the internal input op amp, whose gain ...
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier Soft-Start (Clickless Startup) The H-bridge is disabled under any of the following conditions: • SHDN low • H-bridge current exceeds the 1A current limit • Thermal overload • Undervoltage lockout The circuit ...
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An output filter is required to attenuate the PWM switch- ing frequency. Without the filter, the ripple in the load can substantially degrade efficiency and may cause interference problems with other electronic equipment. A Butterworth lowpass filter is chosen for ...
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier The inductor current rating should be higher than the peak current for a given output power requirement and should have relatively constant inductance over tem- perature and frequency. Typically, an open-core induc- ...
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Mono, 2W, Switch-Mode (Class D) Pin Configuration TOP VIEW GND OUT MAX4295 PGND VCM AOUT 8 9 SO/QSOP ______________________________________________________________________________________ Audio Power ...
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, QSOP .150", .025" ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2005 Maxim Integrated Products ...