General Description Features The LM383 is a cost effective, high power amplifier suited for automotive applications. High current capability (3.5A) enables the device to drive low impedance loads with low distortion. The LM383 is current limited and thermally protected. High voltage protection is available (LM383A) which enables the amplifier to withstand 40V transients on its supply. The LM383 comes in a 5-pin TO-220 package. n n n n n n n n n n n High peak current capability (3.5A) Large output voltage swing Externally programmable gain Wide supply voltage range (5V–20V) Few external parts required Low distortion High input impedance No turn-on transients High voltage protection available (LM383A) Low noise AC short circuit protected Equivalent Schematic LM383/LM383A LM383/LM383A 7W Audio Power Amplifier LM383/LM383A 7W Audio Power Amplifier March 1997 DS007145-1 Connection Diagram Plastic Package DS007145-2 Order Number LM383T or LM383AT See NS Package Number T05D © 1997 National Semiconductor Corporation http:\\www.national.com DS007145 PrintDate=1997/04/01 PrintTime=11:52:16 7152 ds007145 Rev. No. 1 Proof 1 1 Absolute Maximum Ratings (Note *NO Repetitive Non-repetitive Input Voltage Power Dissipation (Note 3) Operating Temperature Storage Temperature Lead Temperature (Soldering, 10 sec.) TARGET FOR FNXref NS0064*), If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Peak Supply Voltage (50 ms) LM383A (Note 2) LM383 Operating Supply Voltage Output Current 40V 25V 20V 3.5A 4.5A ± 0.5V 15W 0˚C to +70˚C −60˚C to +150˚C 260˚C Electrical Characteristics VS = 14.4V, TTAB = 25˚C, AV = 100 (40 dB), RL = 4Ω, unless otherwise specified Parameter Conditions DC Output Level Quiescent Supply Current Min Typ Max 6.4 7.2 8 V 45 80 mA Excludes Current in Feedback Resistors Supply Voltage Range 5 Input Resistance Bandwidth Output Power Gain = 40 dB VS = 13.2V, f = 1 kHz RL = 4Ω, THD = 10% kΩ 30 kHz 4.7 W 7.2 W 5.1 W RL = 2Ω, THD = 10% VS = 14.4V, f = 1 kHz RL = 4Ω, THD = 10% 7.8 W 4.8 5.5 W 7 8.6 W 9.3 W 7 W RL = 4Ω, THD = 10% RL = 2Ω, THD = 10% RL = 1.6Ω, THD = 10% Po = 2W, RL = 4Ω, f = 1 kHz Po = 4W, RL = 2Ω, f = 1 kHz Input Noise Voltage RS = 50Ω, f = 100 Hz RS = 50Ω, f = 1 kHz RS = 0, 15 kHz Bandwidth Input Noise Current RS = 100 kΩ, 15 kHz Bandwidth Ripple Rejection V 150 RL = 2Ω, THD = 10% VS = 13.8V, f = 1 kHz RL = 4Ω, THD = 10% RL = 2Ω, THD = 10% RL = 1.6Ω, THD = 10% VS = 16V, f = 1 kHz THD 20 Units 30 10.5 W 11 W 0.2 % 0.2 % 40 dB 44 dB 2 µV 40 pA Note 1: A 0.2 µF capacitor in series with a 1Ω resistor should be placed as close as possible to pins 3 and 4 for stability. Note 2: The LM383 shuts down above 25V. Note 3: For operating at elevated temperatures, the device must be derated based on a 150˚C maximum junction temperature and a thermal resistance of 4˚C/W junction to case. http:\\www.national.com PrintDate=1997/04/01 PrintTime=11:52:18 7152 ds007145 Rev. No. 1 2 Proof 2 Typical Performance Characteristics Device Dissipation vs Ambient Temperature Power Dissipation vs Output Power DS007145-7 Open Loop Gain vs Frequency Power Dissipation vs Output Power Supply Ripple Rejection vs Frequency Supply Current vs Supply Voltage DS007145-11 DS007145-10 Output Power vs Supply Voltage DS007145-9 DS007145-8 Distortion vs Output Power DS007145-12 Distortion vs Frequency DS007145-14 DS007145-15 DS007145-13 3 PrintDate=1997/04/01 PrintTime=11:52:19 7152 ds007145 Rev. No. 1 http:\\www.national.com Proof 3 Typical Performance Characteristics (Continued) Distortion vs Frequency Output Swing vs Supply Voltage DS007145-16 DS007145-17 Typical Applications Single Amplifier DS007145-3 http:\\www.national.com PrintDate=1997/04/01 PrintTime=11:52:19 7152 ds007145 Rev. No. 1 4 Proof 4 Typical Applications (Continued) 16W Bridge Amplifier DS007145-5 Component Layout Book Extract End DS007145-6 Single Amplifier VS = 20V RL = 4Ω Heatsink from: Staver Company 41 Saxon Ave. P.O. Drawer H Bay Shore, NY 11706 Tel: (516) 666-8000 5 PrintDate=1997/04/01 PrintTime=11:52:20 7152 ds007145 Rev. No. 1 http:\\www.national.com Proof 5 LM383/LM383A 7W Audio Power Amplifier Physical Dimensions inches (millimeters) Order Number LM383T or LM383AT NS Package Number T05D LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness. ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation 1111 West Bardin Road Arlington, TX 76017 Tel: 1(800) 272-9959 Fax: 1(800) 737-7018 http:\\www.national.com 6 National Semiconductor Europe Fax: (+49) 0-180-530 85 86 Email: [email protected] Deutsch Tel: (+49) 0-180-530 85 85 English Tel: (+49) 0-180-532 78 32 Français Tel: (+49) 0-180-532 93 58 Italiano Tel: (+49) 0-180-534 16 80 National Semiconductor Hong Kong Ltd. 13th Floor, Straight Block, Ocean Centre, 5 Canton Rd. Tsimshatsui, Kowloon Hong Kong Tel: (852) 2737-1600 Fax: (852) 2736-9960 National Semiconductor Japan Ltd. Tel: 81-043-299-2308 Fax: 81-043-299-2408 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. PrintDate=1997/04/01 PrintTime=11:52:20 7152 ds007145 Rev. No. 1 Proof 6