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LM2588T-5 데이터시트(PDF) 6 Page - Texas Instruments

부품명 LM2588T-5
상세설명  LM2588 SIMPLE SWITCHER 5A Flyback Regulator with Shutdown
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홈페이지  http://www.ti.com
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LM2588
SNVS117D – APRIL 1998 – REVISED APRIL 2013
www.ti.com
LM2588-12 Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those in bold type face apply over full Operating Temperature
Range. Unless otherwise specified, VIN = 5V.
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of Figure 19(1)
VOUT
Output Voltage
VIN = 4V to 10V
12.0
11.52/11.40
12.48/12.60
V
ILOAD = 300 mA to 1.2A
ΔVOUT/
Line Regulation
VIN = 4V to 10V
20
100/200
mV
ΔVIN
ILOAD = 300 mA
ΔVOUT/
Load Regulation
VIN = 10V
20
100/200
mV
ΔILOAD
ILOAD = 300 mA to 1.2A
η
Efficiency
VIN = 10V, ILOAD = 1A
90
%
UNIQUE DEVICE PARAMETERS(2)
VREF
Output Reference
Measured at Feedback Pin
12.0
11.79/11.76
12.21/12.24
V
Voltage
VCOMP = 1.0V
ΔVREF
Reference Voltage Line VIN = 4V to 40V
7.8
mV
Regulation
GM
Error Amp
ICOMP = −30 μA to +30 μA
0.328
0.186
0.621
mmho
Transconductance
VCOMP = 1.0V
AVOL
Error Amp Voltage
VCOMP = 0.5V to 1.6V
70
41/21
V/V
Gain
RCOMP = 1.0 MΩ
(3)
(1)
External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the
LM2588 is used as shown in Figure 18 and Figure 19, system performance will be as specified by the system parameters.
(2)
All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using
standard Statistical Quality Control (SQC) methods.
(3)
A 1.0 M
Ω resistor is connected to the compensation pin (which is the error amplifier output) to ensure accuracy in measuring AVOL.
6
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Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM2588


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