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LM4962 датащи(PDF) 6 Page - Texas Instruments |
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LM4962 датащи(HTML) 6 Page - Texas Instruments |
6 / 23 page LM4962 SNAS300C – DECEMBER 2005 – REVISED MARCH 2006 www.ti.com Electrical Characteristics The following specifications apply for VDD = 3.2V, AV-BTL = 26dB, ZL = 2µF+9.4Ω, Cb = 1.0μF, R2 = 25KΩ, R5 = 4.9KΩ unless otherwise specified. Limits apply for TA = 25°C. Symbol Parameter Conditions LM4962 Units (Limits) Typical Limit (1) (2) (3) IDD Quiescent Power Supply Current VIN = 0V, 9 12 mA (max) in Boosted Ringer Mode Iddrcv Quiescent Power Supply Current SD Boost = GND 3 5 mA (max) in Receiver Mode SD Amp = VDD ISD Shutdown Current (4) SD Boost = SD Amp = GND 0.1 2.0 µA (max) VLH Logic High Threshold Voltage For SD Boost, SD Amp 1.2 V (min) VLL Logic Low Threshold Voltage For SD Boost, SD Amp 0.4 V (max) RPULLDOWN Pulldown Resistor For SD Amp, SD Boost 80 60 k Ω (min) TWUBC Boost Converter Wake-up Time CSS = 10nF 2 5 ms (max) TWUA Audio Amplifier Wake-up Time (For Vdd = 2.7V to 8.5V) 20 40 msec VOUT Output Voltage Swing THD = 1% (max), f = 1kHz 15 14 Vpp (min) THD+N Total Harmonic Distortion + Noise Vout = 14Vpp, f = 1kHz 0.4 1.0 % εOS Output Noise A-Weighted Filter, VIN = 0V 125 µV VRIPPLE = 200mVp-p, f = 100Hz, PSRR Power Supply Rejection Ratio 86 71 dB (min) Input Referred Ron-sw-leak On Resistance on SW-Leak SD Boost = GND 30 50 Ω (max) Isink = 100 μA Ron Flagout On resistance Isink = 1mA 50 100 Ω (max) Sensitivity of Over Voltage Protection 9.5 V (max) Vovp Flagout = GND 9.0 on VAMP 8.5 V (min) Sensitivity of Over Current Protection 275 mV (max) Vocp Flagout = GND 185 (Voltage Across RS) 75 mV (min) Ileak Leak Current on Flagout pin Vflagout = VDD 2 μA (max) 2.7 A (max) ISW SW Current Limit 2 1.2 A (min) TSD Thermal Shutdown Temperature 150 °C (min) Vos Output Offset Voltage 5 25 mV SD Boost = VDD 1.15 V (min) VFB Feedback Voltage 1.23 SD Amp = VDD 1.31 V (max) (1) Typicals are measured at 25°C and represent the parametric norm. (2) Limits are guaranteed to National's AOQL (Average Outgoing Quality Level). (3) Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. (4) Shutdown current is measured in a normal room environment. The Shutdown pin should be driven as close as possible to Vin for minimum shutdown current. 6 Submit Documentation Feedback Copyright © 2005–2006, Texas Instruments Incorporated Product Folder Links: LM4962 |
Аналогичный номер детали - LM4962 |
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Аналогичное описание - LM4962 |
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