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LM2585 Datasheet(PDF) 4 Page - Texas Instruments

No. de pieza LM2585
Descripción Electrónicos  LM2585 SIMPLE SWITCHER짰 3A Flyback Regulator
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

LM2585 Datasheet(HTML) 4 Page - Texas Instruments

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LM2585
SNVS120F – APRIL 2000 – REVISED APRIL 2013
www.ti.com
LM2585-12
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of Figure 20 (1)
VOUT
Output Voltage
VIN = 4V to 10V
12.0
11.52/11.40
12.48/12.60
V
ILOAD = 0.2A to 0.8A
ΔVOUT/
Line Regulation
VIN = 4V to 10V
20
100/200
mV
ΔVIN
ILOAD = 0.2A
ΔVOUT/
Load Regulation
VIN = 10V
20
100/200
mV
ΔILOAD
ILOAD = 0.2A to 0.8A
η
Efficiency
VIN = 10V, ILOAD = 0.6A
93
%
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
VIN = 4V to 40V
7.8
mV
Line Regulation
GM
Error Amp
ICOMP = −30 μA to +30 μA
0.328
0.186
0.621
mmho
Transconductance
VCOMP = 1.0V
AVOL
Error Amp
VCOMP = 0.5V to 1.6V
70
41/21
V/V
Voltage 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
LM2585 is used as shown in Figure 19 and Figure 20, 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.
LM2585-ADJ
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of Figure 20 (1)
VOUT
Output Voltage
VIN = 4V to 10V
12.0
11.52/11.40
12.48/12.60
V
ILOAD = 0.2A to 0.8A
ΔVOUT/
Line Regulation
VIN = 4V to 10V
20
100/200
mV
ΔVIN
ILOAD = 0.2A
ΔVOUT/
Load Regulation
VIN = 10V
20
100/200
mV
ΔILOAD
ILOAD = 0.2A to 0.8A
η
Efficiency
VIN = 10V, ILOAD = 0.6A
93
%
UNIQUE DEVICE PARAMETERS(2)
VREF
Output Reference
Measured at Feedback Pin
1.230
1.208/1.205
1.252/1.255
V
Voltage
VCOMP = 1.0V
ΔVREF
Reference Voltage
VIN = 4V to 40V
1.5
mV
Line Regulation
GM
Error Amp
ICOMP = −30 μA to +30 μA
3.200
1.800
6.000
mmho
Transconductance
VCOMP = 1.0V
AVOL
Error Amp
VCOMP = 0.5V to 1.6V
670
400/200
V/V
Voltage Gain
RCOMP = 1.0 MΩ
(3)
IB
Error Amp
VCOMP = 1.0V
125
425/600
nA
Input Bias Current
(1)
External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the
LM2585 is used as shown in Figure 19 and Figure 20, 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.
4
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Product Folder Links: LM2585


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