LME49600TS/NOPB National Semiconductor, LME49600TS/NOPB Datasheet

IC AMP BUFFER AUD HI FI TO-263-5

LME49600TS/NOPB

Manufacturer Part Number
LME49600TS/NOPB
Description
IC AMP BUFFER AUD HI FI TO-263-5
Manufacturer
National Semiconductor
Type
Class ABr
Datasheet

Specifications of LME49600TS/NOPB

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
500mW x 1 @ 32 Ohm
Voltage - Supply
±2.25 V ~ 18 V
Features
Short-Circuit and Thermal Protection
Mounting Type
Surface Mount
Package / Case
D²Pak, TO-263 (5 leads + tab)
Amplifier Class
AB
No. Of Channels
1
Supply Voltage Range
± 2.25V To ± 18V
Load Impedance
32ohm
Operating Temperature Range
-40°C To +85°C
Amplifier Case Style
TO-263
No. Of Pins
5
Rohs Compliant
Yes
Number Of Channels
1
Voltage Gain Db
0.09 dB
Input Voltage Range (max)
36 V
Input Voltage Range (min)
4.5 V
Input Offset Voltage
60 mV at +/- 15 V
Supply Current
14.5 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Dual Supply Voltage
+/- 18 V
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LME49600TS/NOPB
LME49600TS
© 2008 National Semiconductor Corporation
LME49600
High Performance, High Fidelity, High Current Audio Buffer
General Description
The LME49600 is a high performance, low distortion high fi-
delity 250mA audio buffer. The LME49600 is designed for a
wide range of applications. It can be used inside the feedback
loop of op amps.
The LME49600 offers a pin-selectable bandwidth: a low cur-
rent, 110MHz bandwidth mode that consumes 7.3mA and a
wide 180MHz bandwidth mode that consumes 13.2mA. In
both modes the LME49600 has a nominal 2000V/μs slew
rate. Bandwidth is easily adjusted by either leaving the BW
pin unconnected or connecting a resistor between the BW pin
and the V
The LME49600 is fully protected through internal current limit
and thermal shutdown.
Functional Block Diagram
Boomer® is a registered trademark of National Semiconductor Corporation.
EE
pin.
FIGURE 1. Simplified Circuit Diagram (Note: I
300298
Key Specifications
Features
Applications
■ 
■ 
■ 
■ 
■ 
Pin-selectable bandwidth and quiescent current
Pure fidelity. Pure performance
Short circuit protection
Thermal shutdown
TO–263 surface-mount package
Headphone amplifier output drive stage
Line drivers
Low power audio amplifiers
High-current operational amplifier output stage
ATE Pin Driver Buffer
Power supply regulator
(V
Low THD+N
Slew Rate
High Output Current
Bandwidth
Supply Voltage Range
BW pin floating
BW connected to V
OUT
1
and I
= 3V
2
RMS
are mirrored from I)
, f = 1kHz, Figure 2)
30029805
EE
±2.25V
0.00003% (typ)
March 31, 2008
2000V/μs (typ)
110MHz (typ)
180MHz (typ)
www.national.com
250mA (typ)
V
S
±18V

Related parts for LME49600TS/NOPB

LME49600TS/NOPB Summary of contents

Page 1

... V pin. EE The LME49600 is fully protected through internal current limit and thermal shutdown. Functional Block Diagram FIGURE 1. Simplified Circuit Diagram (Note: I Boomer® registered trademark of National Semiconductor Corporation. © 2008 National Semiconductor Corporation Key Specifications ■  Low THD OUT ■ ...

Page 2

Connection Diagrams www.national.com Top View Order Number LME49600TS See NS Package Number TS5B 30029832 Top View U — Wafer fabrication code Z — Assembly plant XY — 2 Digit date code TT — Lot traceability 2 300298a0 ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ESD Ratings(Note 4) ESD Ratings (Note 5) Storage Temperature Junction Temperature Thermal Resistance  θ JC System Electrical Characteristics for LME49600 f = 1kHz, unless otherwise specified. Typicals and limits apply for T ...

Page 4

Symbol Parameter V Voltage Output OUT I Output Current OUT I Short Circuit Output Current OUT-SC I Input Bias Current B Z Input Impedance IN V Offset Voltage OS V /°C Offset Voltage vs Temperature OS Note 1: All voltages ...

Page 5

Typical Performance Characteristics Gain vs Frequency vs Quiescent Current Gain vs Frequency vs Power Supply Voltage Wide BW Mode Phase vs Frequency vs Quiescent Current 30029899 Phase vs Frequency vs Supply Voltage Wide BW Mode 30029898 5 30029881 30029880 www.national.com ...

Page 6

Gain vs Frequency vs Power Supply Voltage Low I Mode Q Gain vs Frequency vs R Wide BW Mode Gain vs Frequency vs R Low I Mode Q www.national.com Phase vs Frequency vs Supply Voltage 30029897 Phase vs Frequency vs ...

Page 7

Gain vs Frequency vs C LOAD Wide BW Mode 30029894 Gain vs Frequency vs C LOAD Low I Mode Q 30029893 +PSRR vs Frequency V = ±15V, Wide BW Mode S 30029891 Phase vs Frequency vs C Wide BW Mode ...

Page 8

Frequency V = ±15V, Wide BW Mode S Quiescent Current vs Bandwidth Control Resistance High BW Noise Curve www.national.com +PSRR vs Frequency V = ±15V, Low I S 30029892 THD+N vs Output Voltage V = ±15V ...

Page 9

Typical Application Diagram FIGURE 2. High Performance, High Fidelity LME49600 Audio Buffer Application DISTORTION MEASUREMENTS The vanishingly low residual distortion produced by LME49710/LME49600 is below the capabilities of all com- mercially available equipment. This makes distortion mea- surements just slightly ...

Page 10

Application Information HIGH PERFORMANCE, HIGH FIDELITY HEADPHONE AMPLIFIER The LME49600 is the ideal solution for high output, high per- formance high fidelity head phone amplifiers. When placed in the feedback loop of the LME49710, LME49720 or LME49740 High Performance, High ...

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FIGURE 4. LME49600 delivers high output current for this high performance headphone amplifier 11 30029858 www.national.com ...

Page 12

AUDIO BUFFERS Audio buffers or unity-gain followers, have large current gain and a voltage gain of one. Audio buffers serve many applica- tions that require high input impedance, low output impedance and high output current. They also offer constant gain ...

Page 13

LOAD IMPEDANCE The LME49600 is stable under any capacitive load when driv source that has an impedance of 50Ω or less. When driving capacitive loads, any overshoot that is present on the output signal can be reduced ...

Page 14

FIGURE 7. Thermal Resistance for 5 lead TO–263 Package Mounted on 1oz. Copper A copper plane may be placed directly beneath the tab. Ad- ditionally, a matching plane can be placed on the opposite side plane is placed ...

Page 15

Examining the Copper Area vs. θ plot indicates that a ther- JA mal resistance of 50°C/W is possible with a 12in layer of 1oz copper. Other solutions include using two layers of 1oz copper or the use of 2oz copper. ...

Page 16

FIGURE 8. High Speed Positive and Negative Regulator www.national.com 30029844 16 ...

Page 17

Revision History Rev Date 1.0 01/15/08 1.01 01/16/08 1.02 02/07/08 1.03 03/28/08 Description Initial release. Edited specification table. Edited applications information. Text edits. 17 www.national.com ...

Page 18

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Order Number LME49600TS See NS Package TS5B 18 ...

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Notes 19 www.national.com ...

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... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...

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