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LM4651 bảng dữ liệu(PDF) 4 Page - Texas Instruments |
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LM4651 bảng dữ liệu(HTML) 4 Page - Texas Instruments |
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4 / 34 page  OBSOLETE LM4651, LM4652 SNOS507H – MAY 2000 – REVISED APRIL 2013 www.ti.com System Electrical Characteristics for LM4651 and LM4652 (1) (2) The following specifications apply for +VCC = +20V, −VEE = −20V, f SW = 125kHz, fIN = 100Hz, RL = 4Ω, unless otherwise specified. Typicals apply for TA = 25°C. For specific circuit values, refer to Figure 3 (Typical Audio Application Circuit). LM4651 & LM4652 Units Symbol Parameter Conditions Typical Limit (Limits) See(3) VIN = 0V, IO = 0mA Total Quiescent Power Supply ICQ RDLY = 0Ω 237 mA Current RDLY = 10kΩ 124 mA ISTBY Standby Current VPIN13 = 5V, Stby: On 17 mA AM Standby Attenuation VPIN13 = 5V, Stby: On >115 dB RL = 4Ω, 1% THD 125 W RL = 4Ω, 10% THD 155 W RL = 8Ω, 1% THD 75 W PO Output Power (Continuous Average) RL = 8Ω, 10% THD 90 W fSW = 75kHz, RL = 4Ω, 1% THD 135 W fSW = 75kHz, RL = 4Ω, 10% THD 170 W η Efficiency at PO = 5W PO = 5W, RDLY = 5kΩ 55 % Efficiency η PO = 125W, THD = 1% 85 % (LM4651 & LM4652) PO = 125W, THD = 1% (max) 22 W Power Dissipation Pd fSW = 75kHz, PO = 135W, (LM4651 + LM4652) 22 W THD = 1% (max) 10W, 10Hz ≤ fIN ≤ 500Hz, THD+N Total Harmonic Distortion Plus Noise AV = 18dB 0.3 % 10Hz ≤ BW ≤ 80kHz εOUT Output Noise A Weighted, no signal, RL = 4Ω 550 µV A-Wtg, Pout = 125W, RL = 4Ω 92 dB SNR Signal-to-Noise Ratio 22kHz BW, Pout = 125W, RL = 4Ω 89 dB VOS Output Offset Voltage VIN = 0V, IO = 0mA, ROFFSET = 0Ω 0.07 V RL = 4Ω, 10Hz ≤ BW ≤ 30kHz PSRR Power Supply Rejection Ratio +VCCAC = −VEEAC = 1VRMS, 37 dB fAC = 120Hz (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance. (2) All voltages are measured with respect to the GND pin unless otherwise specified. (3) Limits are guaranteed to TI's AOQL (Average Outgoing Quality Level). Electrical Characteristics for LM4651 (1) (2) (3) The following specifications apply for +VCC = +20V, −VEE = −20V, fSW = 125kHz, unless otherwise specified. Limits apply for TA = 25°C. For specific circuit values, refer to Figure 3 (Typical Audio Application Circuit). LM4651 & LM4652 Units Symbol Parameter Conditions Typical Limit (Limits) See(3) LM4652 not connected, IO = 0mA, 15 mA (min) ICQ Total Quiescent Current 36 |VCC+| + |VEE-|, RDLY = 0Ω 45 mA (max) (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance. (2) All voltages are measured with respect to the GND pin unless otherwise specified. (3) Limits are guaranteed to TI's AOQL (Average Outgoing Quality Level). 4 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM4651 LM4652 |
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