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LM2586 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM2586
Description  SIMPLE SWITCHER 3A Flyback Regulator with Shutdown
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2586 Datasheet(HTML) 5 Page - National Semiconductor (TI)

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LM2586-ADJ (Continued)
Symbol
Parameters
Conditions
Typical
Min
Max
Units
COMMON DEVICE PARAMETERS for all versions (Note 5)
I
S
Input Supply Current
Switch Off (Note 8)
11
15.5/16.5
mA
I
SWITCH = 1.8A
50
100/115
mA
I
S/D
Shutdown Input
V
SH = 3V
16
100/300
µA
Supply Current
V
UV
Input Supply
R
LOAD = 100Ω
3.30
3.05
3.75
V
Undervoltage Lockout
f
O
Oscillator Frequency
Measured at Switch Pin
R
LOAD = 100Ω,VCOMP = 1.0V
100
85/75
115/125
kHz
Freq. Adj. Pin Open (Pin 1)
R
SET = 22 kΩ
200
kHz
f
SC
Short-Circuit
Measured at Switch Pin
Frequency
R
LOAD = 100Ω
25
kHz
V
FEEDBACK = 1.15V
V
EAO
Error Amplifier
Upper Limit
2.8
2.6/2.4
V
Output Swing
(Note 7)
Lower Limit
0.25
0.40/0.55
V
(Note 8)
I
EAO
Error Amp
(Note 9)
Output Current
165
110/70
260/320
µA
(Source or Sink)
I
SS
Soft Start Current
V
FEEDBACK = 0.92V
11.0
8.0/7.0
17.0/19.0
µA
V
COMP = 1.0V
D
MAX
Maximum Duty Cycle
R
LOAD = 100Ω
98
93/90
%
(Note 7)
I
L
Switch Leakage
Switch Off
15
300/600
µA
Current
V
SWITCH = 60V
V
SUS
Switch Sustaining Voltage
dV/dT = 1.5V/ns
65
V
V
SAT
Switch Saturation Voltage
I
SWITCH = 3.0A
0.45
0.65/0.9
V
I
CL
NPN Switch Current Limit
4.0
3.0
7.0
A
V
STH
Synchronization
F
SYNC = 200 kHz
0.75
0.625/0.40
0.875/1.00
V
Threshold Voltage
V
COMP = 1V, VIN = 5V
I
SYNC
Synchronization
V
IN = 5V
100
200
µA
Pin Current
V
COMP = 1V, VSYNC = VSTH
V
SHTH
ON/OFF Pin (Pin 1)
V
COMP = 1V
1.6
1.0/0.8
2.2/2.4
V
Threshold Voltage
(Note 10)
I
SH
ON/OFF Pin (Pin 1)
V
COMP = 1V
40
15/10
65/75
µA
Current
V
SH = VSHTH
θ
JA
Thermal Resistance
T Package, Junction to
Ambient (Note 11)
65
˚C/W
θ
JA
T Package, Junction to
Ambient (Note 12)
45
θ
JC
T Package, Junction to Case
2
θ
JA
S Package, Junction to
Ambient (Note 13)
56
θ
JA
S Package, Junction to
Ambient (Note 14)
35
θ
JA
S Package, Junction to
Ambient (Note 15)
26
θ
JC
S Package, Junction to Case
2
www.national.com
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