Datasheet MAX4295 (Maxim) - 2
| 制造商 | Maxim |
| 描述 | Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier |
| 页数 / 页 | 15 / 2 — Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier. ABSOLUTE MAXIMUM … |
| 文件格式/大小 | PDF / 545 Kb |
| 文件语言 | 英语 |
Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier. ABSOLUTE MAXIMUM RATINGS. MAX4295. ELECTRICAL CHARACTERISTICS. PARAMETER
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Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier ABSOLUTE MAXIMUM RATINGS
VCC, PVCC to GND or PGND..-0.3V to +6V Continuous Power Dissipation (TA = +70°C) PGND to GND...±0.3V 16-Pin QSOP (derate 8.30mW/°C above +70°C)..667mW PVCC to VCC ...±0.3V 16-Pin Narrow SO (derate 8.7mW/°C above +70°C)..696mW VCM, SS, AOUT, IN to GND ...-0.3V to (VCC + 0.3V) Operating Temperature Range ...-40°C to +85°C SHDN, FS1, FS2 to GND ..-0.3V to +6V Junction Temperature ..+150°C OUT_ to PGND ...-0.3V to (PVCC + 0.3V) Storage Temperature Range ...-65°C to +150°C Op Amp Output Short-Circuit Lead Temperature (soldering, 10s) ...+300°C
MAX4295
Duration (AOUT)...Indefinite Short Circuit to Either Supply H-Bridge Short-Circuit Duration (OUT_) ..Continuous Short Circuit to PGND, PVCC or between OUT+ and OUT- Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS GENERAL
Supply Voltage Range (Note 2) 2.7 5.5 V Quiescent Supply Current Output load not connected 2.8 4 mA Shutdown Supply Current SHDN = GND 1.5 8 µA 0.285 × 0.3 × 0.315 × Voltage at VCM Pin V VCC VCC VCC FS1 = GND, FS2 = GND 105 125 145 FS1 = GND, FS2 = VCC 210 250 290 PWM Frequency kHz FS1 = VCC, FS2 = GND 420 500 580 FS1 = VCC, FS2 = VCC 840 1000 1160 PWM Frequency Change with VCC = 2.7V to 5.5V ±1 ±3 kHz/V V CC VIN = 0.06 × VCC 10.2 12 13.8 Duty Cycle VIN = 0.30 × VCC 49.2 50 50.8 % VIN = 0.54 × VCC 86.2 88 89.8 Duty Cycle Change with VCC VIN = 0.3 × VCC, VCC = 2.7V to 5.5V ±0.02 ±0.15 %/V Switch On-Resistance VCC = 5V 0.25 0.5 IOUT = 150mA Ω (each power device) VCC = 2.7V 0.35 1.0 H-Bridge Output Leakage SHDN = GND 0 ±5 µA H-Bridge Current Limit 1 A Soft-Start Capacitor Charging VSS = 0V 0.75 1.35 1.95 µA Current Undervoltage Lockout 1.8 2.2 2.6 V Thermal Shutdown Trip Point 145 °C
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VCC, PVCC to GND or PGND..-0.3V to +6V Continuous Power Dissipation (TA = +70°C) PGND to GND...±0.3V 16-Pin QSOP (derate 8.30mW/°C above +70°C)..667mW PVCC to VCC ...±0.3V 16-Pin Narrow SO (derate 8.7mW/°C above +70°C)..696mW VCM, SS, AOUT, IN to GND ...-0.3V to (VCC + 0.3V) Operating Temperature Range ...-40°C to +85°C SHDN, FS1, FS2 to GND ..-0.3V to +6V Junction Temperature ..+150°C OUT_ to PGND ...-0.3V to (PVCC + 0.3V) Storage Temperature Range ...-65°C to +150°C Op Amp Output Short-Circuit Lead Temperature (soldering, 10s) ...+300°C
MAX4295
Duration (AOUT)...Indefinite Short Circuit to Either Supply H-Bridge Short-Circuit Duration (OUT_) ..Continuous Short Circuit to PGND, PVCC or between OUT+ and OUT- Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS GENERAL
Supply Voltage Range (Note 2) 2.7 5.5 V Quiescent Supply Current Output load not connected 2.8 4 mA Shutdown Supply Current SHDN = GND 1.5 8 µA 0.285 × 0.3 × 0.315 × Voltage at VCM Pin V VCC VCC VCC FS1 = GND, FS2 = GND 105 125 145 FS1 = GND, FS2 = VCC 210 250 290 PWM Frequency kHz FS1 = VCC, FS2 = GND 420 500 580 FS1 = VCC, FS2 = VCC 840 1000 1160 PWM Frequency Change with VCC = 2.7V to 5.5V ±1 ±3 kHz/V V CC VIN = 0.06 × VCC 10.2 12 13.8 Duty Cycle VIN = 0.30 × VCC 49.2 50 50.8 % VIN = 0.54 × VCC 86.2 88 89.8 Duty Cycle Change with VCC VIN = 0.3 × VCC, VCC = 2.7V to 5.5V ±0.02 ±0.15 %/V Switch On-Resistance VCC = 5V 0.25 0.5 IOUT = 150mA Ω (each power device) VCC = 2.7V 0.35 1.0 H-Bridge Output Leakage SHDN = GND 0 ±5 µA H-Bridge Current Limit 1 A Soft-Start Capacitor Charging VSS = 0V 0.75 1.35 1.95 µA Current Undervoltage Lockout 1.8 2.2 2.6 V Thermal Shutdown Trip Point 145 °C
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