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LX1721CDBTR Datasheet(PDF) 5 Page - Microsemi Corporation |
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LX1721CDBTR Datasheet(HTML) 5 Page - Microsemi Corporation |
5 / 14 page Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 Copyright © 2001 Rev. 1.2a,2004-06-10 AudioMAX™ LX1721 / 1722 Class-D Stereo Power Amplifier Controller PRODUCTION I N T E GRA T ED PR ODUC T S ELECTRICAL CHA RACTERISTICS (CONTINUED) LX1721 / 1722 Parameter Symbol Test Conditions Min Typ Max Units Current Limit Comparator Voltage Sense Threshold 190 210 230 mV Blanking Pulse Delay 500 ‘ns Response Time Excluding blanking pulse 250 ‘ns IUM Pulses required to Current Limit Latch 4 4 4 ‘cycles Consecutive Clear Pulses required to reset IUM counter 2 2 2 ‘cycles Reference Voltage Section Initial Accuracy (VREF) 5.0 Voltage Stability (VREF) ± 50 ± 100 ‘mV Initial Accuracy (V25) 2.5 Voltage Stability (V25) ± 25 ± 50 mV Temperature Stability TA = 0 OC to 70OC 2 5 ‘mV Line Regulation VDD = 9V to 15V 0.5 ‘mV Load Regulation IOUT = 0 to 10mA 5 ‘mV Under Voltage Lockout Section Start Threshold Voltage 6 V UV Lockout Hysteresis 250 mV UVLO Delay To Output Enable 62,500 clkcyc Supply Current Sleep Current SLEEP Input = 0V, TA = 25 OC 30 µA Operating Current SLEEP Input = 2V, VIN = 15V, No MOSFETs connected 8 11 ‘mA Sleep to Output Enable 62,500 clkcyc Sleep Threshold 1.45 1.6 1.75 V Mute Section Mute Threshold 1.2 1.35 1.5 V Output Drivers For N-Channel MOSFETs ISINK = 3mA 30 100 ‘mV NFET Drivers, Low Level Voltage VOL ISINK = 100mA 0.3 1.0 V ISOURCE = 3mA, CN = 5.2V applied externally 30 100 ‘mV NFET Drivers, High Level Voltage VOH ISOURCE = 100mA, CN = 5.2V applied externally 0.3 1.0 V Output Drives For P-Channel MOSFETs ISINK = 3mA 30 100 ‘mV PFET Drivers, Low Level Voltage VOL ISINK = 100mA 0.5 1.0 V ISOURCE = 3mA, CP = 5.2V (applied externally) 30 100 ‘mV PFET Drivers, High Level Voltage VOH ISOURCE = 100mA, CP = 5.2V (applied externally) 0.5 1.0 V Note 2: The LX1721 / 22CDB is guaranteed to meet performance specifications from 0° to 70°C. Specifications over the -20° to 0°C operation temperature range are assured by design, characterization, and statistical process control. |
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