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LM2592HVS-ADJ 데이터시트(PDF) 4 Page - Texas Instruments

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부품명 LM2592HVS-ADJ
상세설명  LM2592HV SIMPLE SWITCHER Power Converter 150 kHz 2A Step-Down Voltage
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LM2592HV
SNVS075C – MAY 2001 – REVISED APRIL 2013
www.ti.com
ELECTRICAL CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range. Unless otherwise specified, VIN = 12V for the 3.3V, 5V, and Adjustable version. ILOAD = 500 mA
Symbol
Parameter
Conditions
LM2592HV-XX
Units
(Limits)
Typ(1)
Limit(2)
DEVICE PARAMETERS
Ib
Feedback Bias Current
Adjustable Version Only, VFB = 1.3V
10
nA
50/100
nA (max)
fO
Oscillator Frequency
See(3)
150
kHz
127/110
kHz(min)
173/173
kHz(max)
VSAT
Saturation Voltage
IOUT = 2A
(4) (5)
1.10
V
1.3/1.4
V(max)
DC
Max Duty Cycle (ON)
See(5)(6)
100
%
Min Duty Cycle (OFF)
0
ICLIM
Switch current Limit
Peak Current(4)(5)
3.0
A
2.4/2.3
A(min)
3.7/4.0
A(max)
IL
Output Leakage Current
Output = 0V
50
μA(max)
Output =
−1V(4)(6)(7)
5
mA
30
mA(max)
IQ
Operating Quiescent
SD /SS Pin Open(6)
5
mA
Current
10
mA(max)
ISTBY
Standby Quiescent
SD /SS pin = 0V(7)
90
μA
Current
200/250
μA(max)
θJC
Thermal Resistance
TO-220 or DDPAK Package, Junction to Case
2
°C/W
θJA
TO-220 Package, Junction to Ambient(8)
50
°C/W
θJA
DDPAK Package, Junction to Ambient(9)
50
°C/W
θJA
DDPAK Package, Junction to Ambient(10)
30
°C/W
θJA
DDPAK Package, Junction to Ambient(11)
20
°C/W
ON/OFF CONTROL Test Circuit and Layout Guidelines
ON /OFF Pin Logic Input
1.3
V
VIH
Threshold Voltage
Low (Regulator ON)
0.6
V(max)
VIL
High (Regulator OFF)
2.0
V(min)
IH
ON /OFF Pin Input Current
VLOGIC = 2.5V (Regulator OFF)
5
μA
15
μA(max)
IL
VLOGIC = 0.5V (Regulator ON)
0.02
μA
5
μA(max)
(1)
Typical numbers are at 25°C and represent the most likely norm.
(2)
All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits
are 100% production tested. All limits at temperature extremes are ensured via correlation using standard Statistical Quality Control
(SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(3)
The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the
severity of current overload.
(4)
No diode, inductor or capacitor connected to output pin.
(5)
Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
(6)
Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ. version to force the output transistor switch
OFF.
(7)
VIN = 60V.
(8)
Junction to ambient thermal resistance (no external heat sink) for the package mounted TO-220 package mounted vertically, with the
leads soldered to a printed circuit board with (1 oz.) copper area of approximately 1 in2.
(9)
Junction to ambient thermal resistance with the DDPAK package tab soldered to a single sided printed circuit board with 0.5 in2 of (1
oz.) copper area.
(10) Junction to ambient thermal resistance with the DDPAK package tab soldered to a single sided printed circuit board with 2.5 in2 of (1
oz.) copper area.
(11) Junction to ambient thermal resistance with the DDPAK package tab soldered to a double sided printed circuit board with 3 in2 of (1 oz.)
copper area on the LM2592HVS side of the board, and approximately 16 in2 of copper on the other side of the p-c board. See
application hints in this data sheet and the thermal model in Switchers Made Simple available at
http://www.ti.com/lsds/ti/analog/powermanagement/power_portal.page
4
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Copyright © 2001–2013, Texas Instruments Incorporated
Product Folder Links: LM2592HV


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