PDF LX1725 Data sheet ( Hoja de datos )

Número de pieza	LX1725
Descripción	15W+15W Stereo Class-D Amplifier Filterless 30W Mono
Fabricantes	Microsemi
Logotipo
Hay una vista previa y un enlace de descarga de LX1725 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas
No Preview Available ! LX1725 www.DataSheet4U.com ® 15W+15W Stereo Class-D Amplifier TM Filterless 30W Mono in BTL PRODUCTION DATA SHEET DESCRIPTION The Microsemi LX1725 is part of a The LX1725 features Mute and new generation of fully integrated Standby modes, over-current protection, stereo class-D amplifiers from POP-free turn-on and turn-off, under- Microsemi. The fully integrated half- voltage lockout, over-voltage protection bridge output for each channel works and over-temperature protection. All with both split and single power built-in protection modes allow supply operation. The outputs can be automatic recovery when the fault bridged to run in BTL (Bridge Tied condition has been cleared. The gain is Load) mode. In BTL mode, 3-level pin selectable between 14 / 20 / 26dB to modulation is used which allow accommodate different signal source operation without an L-C filter to amplitudes. Several LX1725s can be reduce system cost and area. The easily synchronized together to prevent LX1725 has >90% efficiency, with beat frequency interference in multi- typical output power up to 15W+15W channel applications.. in stereo, and 30W BTL into a 4Ω The LX1725 comes in a MLPQ 32 load with less than 1% THD+N. The pin package with a 7mmx7mm small amplifier operates over a wide supply outline surface mount. voltage range of ±6V to ±15V split supply or 12V to 30V single supply, and consumes a very little quiescent current. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com VCOM IN1P IN1N VPOS VCOM Sychronize FLAG VNEG IN2P IN2N VCOM PRODUCT HIGHLIGHT HIGAIN +5V 4.7µF 1µF 35V VCOM 1µF 32 31 30 29 28 27 26 25 1 VPOSA 2 VCOMA 3 SYNC RLIM 4 5 FLAG RILIM 1µF 35V 6 VREF COSC 7 COSC 8 VNEGA LX1725 STBY VPOS1 OUT1 VNEG1 VNEG2 OUT2 VPOS2 MASTER 24 23 22 21 20 19 18 17 STBY VPOS 22µH VNEG 820nF 22µH 820nF VPOS 1µF 1µF 9 10 11 12 13 14 15 16 Master / Slave MUTE / GAIN VNEGA KEY FEATURES 12Wx2 @ 4Ω THD+N<1% 16Wx2 @ 4Ω THD+N<10% 25W BTL @ 8Ω THD+N<1% 32W BTL @ 8Ω THD+N<10% High Efficiency: >90% @8Ω Full Audio Band: 20Hz~20KHz Low Distortion: <0.1% @1KHz, 8Ω <0.4% @20~20KHz, 8Ω High Signal-to-Noise Ratio: >85dB non A-Weighted Split/Single Power Supply Wide Supply Voltage Range: ±6V ~ ±15V or 12V ~ 30V Low Quiescent Current <20mA Turn ON/OFF POP Free STANDBY/MUTE Feature Programmable Gain 14/20/26dB Built-in Over Current Protection Built-in Under Voltage Lockout Thermal Shut Down Power Limiting Based on Die Temperature (gain fold back) Synchronization APPLICATIONS LCD TV, PDP Sets CD/DVD Combo Player Combo DVD 5.1 Amplifier Home Theater System Computer Speaker System Game Machine PACKAGE ORDER INFO TJ(°C) Plastic MLPQ LQ 32-PIN RoHS Compliant / Pb-free -40 to +85 LX1725ILQ Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1725ILQ-TR) Copyright © 2004 Rev. 1.2, 2005-12-06 Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 1 page LX1725 www.DataSheet4U.com ® 15W+15W Stereo Class-D Amplifier TM Filterless 30W Mono in BTL PRODUCTION DATA SHEET ELECTRICAL CHARACTERISTICS Notes: Unless otherwise specified, the following specifications apply over the operating ambient temperature TA = -40 ~ +85°C°C except where otherwise noted (typical @ TA = 25°C) and the following test conditions: VPOS = +12V, VNEG = -12V, VGND = 0V, V5V = 5V, VCOM = 0V RILIM = 50Kohm, COSC = 220pF, RL = 8Ω. Parameter Symbol Test Conditions LX1725 Min Typ Max Units ` OSCILLATOR Oscillator Frequency FOSC Varies with COSC capacitor value, value shown is for default conditions. 160 220 280 KHz Voltage Stability VPOS-VNEG = 12V to 30V 10 % Temperature Stability ` POWER SUPPLY TA = 0°C to 70°C TA = -40°C to 85°C 5% 8% Supply Voltage VPOS/VNEG VCOM to GND VNEG to GND ±6 ±12 ±15 12 24 30 V V5V @ Single Power Supply 4.5 5.0 5.5 Stand-By Current Operating Current ` GAIN High Gain Mode Normal Gain Low Gain Mute Gain ` OFFSET Output DC Offset ` INPUT STAGE STBY Enable, TA = 25°C @ V5V STBY Disabled, MUTE Enabled @ V5V GHIGH GNOM GLOW GMUTE Voff POUT = 4W, F = 1kHz, VMUTE = VGND, HIGAIN = V5V Pout=1W, F=1KHz, VMUTE = VGND, HIGAIN = VGND Pout=0.25W, F=1KHz, V5V / 4 < VMUTE < V5V / 2, HIGAIN = VGND Input 2Vpp, F=1KHz, VMUTE = V5V 18 9 4.5 Measured WRT VCOM 250 15 20 22 11 5.5 0.01 100 26 13 6.5 0.045 170 µA mA V/V V/V V/V V/V mV Input Resistance Common Mode Voltage Common Mode Rejection Ratio ` OUTPUT STAGE RIN VCM CMRR Single-ended 17 27 2.29 60 KΩ V dB PFET On resistance RDSONp VPOS = 12V, VNEG = -12V, Ids = 0.2A 550 900 mΩ NFET On resistance RDSONn ` CURRENT LIMIT Current Limit Threshold Ith Pulse Qualification Count Icount ` VOLTAGE THRESHOLDS AT VPOS – VNEG Under Voltage Threshold Start Threshold Hysteresis ` UNDER VOLTAGE LOCK-OUT @ V5V Start Threshold Voltage ` THERMAL Thermal Gain Fold Back Junction Temperature Thermal shut off Junction Temperature VPOS = 12V, VNEG = -12V, Ids = 0.2A GBNT ** Any 4 out of 5 clock periods VPOS – VNEG 550 900 10 0.38 3.8 3.75 4 12 1 4 13.2 1.78 125 150 mΩ A V V V °C °C Copyright © 2004 Rev. 1.2, 2005-12-06 Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 5 Page LX1725 www.DataSheet4U.com ® 15W+15W Stereo Class-D Amplifier TM Filterless 30W Mono in BTL PRODUCTION DATA SHEET TEST CIRCUIT SCHEMATIC V5V IN1- IN1+ JP1 JP2 IN2- IN2+ V5V AGND VPOS PGND VNEG V5V C7 1µF 35V C8 1µF 35V VPOS VNEG C100 0.1µF 35V C101 0.1µF 35V C9 1µF 35V C6 0.1µF 35V R100 0 SYNC FLAG R1 25K + C12 1µF 35V C11 220pF VPOSA VCOMA SYNC FLAG RILIM VREF COSC VNEGA LX1725 STBY VPOS1 OUT1 VNEG1 VNEG2 OUT2 VPOS2 MASTER STBY C14 0.1µF 35V + C103 10µF 35V C15 0.1µF C106 + 10µF 35V 35V MASTER VPOS L1 47µH VNEG L2 47µH C18 0.68µF 50V C19 0.68µF 50V VPOS OUT1+ OUT1- OUT2+ OUT2- C10 1µF 35V + C5 10µF 35V V5V C1 470µF 35V VPOS C3 0.1µF 35V V5V R103 6K 1% R105 4K 1% VNEGA MUTE Master V5V R104 5K 1% R106 3K 1% C2 470µF 35V C4 0.1µF 35V VNEG R107 6K 1% R102 10K V5V FLAG SYNC Figure 7 – Test Circuit Schematic (Stereo, Split Supply) Master V5 R101 10K STBY Copyright © 2004 Rev. 1.2, 2005-12-06 Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 11 11 Page

Páginas	Total 23 Páginas
PDF Descargar	[ Datasheet LX1725.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
LX1720	SWITCHING CLASS-D/ STEREO POWER AMPLIFIER CONTROLLER IC	Microsemi Corporation
LX1720-01CDB	SWITCHING CLASS-D/ STEREO POWER AMPLIFIER CONTROLLER IC	Microsemi Corporation
LX1721	Class-D Stereo Power Amplifier Controller	Microsemi
LX1722	Class-D Stereo Power Amplifier Controller	Microsemi

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar