Datasheet MAX4295 (Maxim) - 3
| 制造商 | Maxim |
| 描述 | Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier |
| 页数 / 页 | 15 / 3 — Mono, 2W, Switch-Mode (Class D). Audio Power Amplifier. MAX4295. … |
| 文件格式/大小 | PDF / 545 Kb |
| 文件语言 | 英语 |
Mono, 2W, Switch-Mode (Class D). Audio Power Amplifier. MAX4295. ELECTRICAL CHARACTERISTICS (continued). PARAMETER. CONDITIONS. MIN
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier MAX4295 ELECTRICAL CHARACTERISTICS (continued)
(VCC = PVCC = +5V, SHDN = VCC, FS1 = GND, FS2 = VCC (fOSC = 250kHz), input amplifier gain = -1V/V, TA = TMIN to TMAX, unless otherwise noted. Typical values are TA = +25°C.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
0 to 0.6 Input Voltage Range V x VCC RL = 8Ω 0.4 VCC = +3V, fIN = 1kHz RL = 4Ω 0.7 Maximum Output Power W RL = 8Ω 1.2 VCC = +5V, fIN = 1kHz RL = 4Ω 2 Total Harmonic Distortion Plus RL = 4Ω, fIN = 1kHz, PO = 1W, fOSC = 125kHz 0.4 % Noise Efficiency MAX4295, RL = 4Ω, fIN = 1kHz, PO = 2W 87 %
LOGIC INPUTS (
SHDN
, FS1, FS2)
Logic Input Current VLOGIC = 0 to VCC 1 100 nA 0.7 × Logic Input High Voltage V VCC 0.3 × Logic Input Low Voltage V VCC
INPUT AMPLIFIER
Input Offset Voltage ±0.5 ±4 mV VOS Temp Coefficient ±5 µV/°C Input Bias Current (Note 3) ±0.05 ±25 nA Input Noise-Voltage Density f = 10kHz 32 nV/√Hz Input Capacitance 2.5 pF Output Resistance 0.01 Ω AOUT Disabled Mode Leakage SHDN = GND, VAOUT = 0 to VCC ±0.1 ±1 µA Current AOUT to GND 8 Short-Circuit Current mA AOUT to VCC 65 Large-Signal Voltage Gain VOUT = 0.2V to 4.6V, RL(OPAMP) = 10kΩ 78 115 dB V VCC - VOH 40 250 AOUT Voltage Swing DIFF ≥ 10mV, mV RL(OPAMP) = 10kΩ VOL 40 100 Gain-Bandwidth Product 1.25 MHz Power-Supply Rejection VCC = +2.7V to +5.5V 66 90 dB Maximum Capacitive Load No sustained oscillations 200 pF
Note 1:
All devices are 100% production tested at TA = 25°C. All temperature limits are guaranteed by design.
Note 2:
Supply Voltage Range guaranteed by PSRR of input amplifier, frequency, duty cycle, and H-bridge on-resistance.
Note 3:
Guaranteed by design, not production tested.
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(VCC = PVCC = +5V, SHDN = VCC, FS1 = GND, FS2 = VCC (fOSC = 250kHz), input amplifier gain = -1V/V, TA = TMIN to TMAX, unless otherwise noted. Typical values are TA = +25°C.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
0 to 0.6 Input Voltage Range V x VCC RL = 8Ω 0.4 VCC = +3V, fIN = 1kHz RL = 4Ω 0.7 Maximum Output Power W RL = 8Ω 1.2 VCC = +5V, fIN = 1kHz RL = 4Ω 2 Total Harmonic Distortion Plus RL = 4Ω, fIN = 1kHz, PO = 1W, fOSC = 125kHz 0.4 % Noise Efficiency MAX4295, RL = 4Ω, fIN = 1kHz, PO = 2W 87 %
LOGIC INPUTS (
SHDN
, FS1, FS2)
Logic Input Current VLOGIC = 0 to VCC 1 100 nA 0.7 × Logic Input High Voltage V VCC 0.3 × Logic Input Low Voltage V VCC
INPUT AMPLIFIER
Input Offset Voltage ±0.5 ±4 mV VOS Temp Coefficient ±5 µV/°C Input Bias Current (Note 3) ±0.05 ±25 nA Input Noise-Voltage Density f = 10kHz 32 nV/√Hz Input Capacitance 2.5 pF Output Resistance 0.01 Ω AOUT Disabled Mode Leakage SHDN = GND, VAOUT = 0 to VCC ±0.1 ±1 µA Current AOUT to GND 8 Short-Circuit Current mA AOUT to VCC 65 Large-Signal Voltage Gain VOUT = 0.2V to 4.6V, RL(OPAMP) = 10kΩ 78 115 dB V VCC - VOH 40 250 AOUT Voltage Swing DIFF ≥ 10mV, mV RL(OPAMP) = 10kΩ VOL 40 100 Gain-Bandwidth Product 1.25 MHz Power-Supply Rejection VCC = +2.7V to +5.5V 66 90 dB Maximum Capacitive Load No sustained oscillations 200 pF
Note 1:
All devices are 100% production tested at TA = 25°C. All temperature limits are guaranteed by design.
Note 2:
Supply Voltage Range guaranteed by PSRR of input amplifier, frequency, duty cycle, and H-bridge on-resistance.
Note 3:
Guaranteed by design, not production tested.
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