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LM5026MT Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza LM5026MT
Descripción Electrónicos  Active Clamp Current Mode PWM Controller
Download  39 Pages
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

LM5026MT Datasheet(HTML) 5 Page - Texas Instruments

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LM5026
www.ti.com
SNVS363E – AUGUST 2005 – REVISED NOVEMBER 2015
6.4 Thermal Information
LM5026
THERMAL METRIC(1)
NHQ (WSON)
PW (TSSOP)
UNIT
16 PINS
16 PINS
RθJA
Junction-to-ambient thermal resistance
29.9
98.6
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
25.8
27.6
°C/W
RθJB
Junction-to-board thermal resistance
9.2
44.1
°C/W
ψJT
Junction-to-top characterization parameter
0.2
1.2
°C/W
ψJB
Junction-to-board characterization parameter
9.5
43.3
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
2.3
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
6.5 Electrical Characteristics
Specification typical values are for TJ = 25°C unless otherwise noted. VIN = 48 V, VCC = 10 V, RT = 30.0 kΩ, Rset = 34.8 kΩ
unless otherwise stated. Minimum and maximum specifications apply over full operating junction temperature range.
(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
START-UP REGULATOR
TJ = 25°C
7.6
VCC Reg
VCC regulation
No Load
V
over full operating junction
7.3
7.9
temperature range
TJ = 25°C
25
VCC current limit
See (2)
mA
over full operating junction
20
temperature range
TJ = 25°C
165
Start-up regulator
I-VIN
leakage (external VCC
VIN = 100 V
µA
over full operating junction
500
supply)
temperature range
TJ = 25°C
350
Shutdown current (Iin) UVLO = 0 V
µA
over full operating junction
450
temperature range
VCC SUPPLY
VCC Reg –
TJ = 25°C
VCC undervoltage
120 mV
lockout voltage
V
VCC Reg – 220
(positive going Vcc)
over full operating junction temperature range
mV
TJ = 25°C
1.5
VCC undervoltage
V
hysteresis
over full operating junction temperature range
1
2
VCC supply current
Cgate = 0, UVLO = 1.3 V, over full operating junction
4.2
mA
(ICC)
temperature range
REFERENCE SUPPLY
TJ = 25°C
5
Ref voltage
IREF = 0 mA
V
over full operating junction
4.85
5.15
temperature range
TJ = 25°C
25
VREF
Ref voltage regulation
IREF = 0 to 10 mA
mV
over full operating junction
50
temperature range
TJ = 25°C
20
Ref current limit
mA
over full operating junction temperature range
10
UVLO SHUTDOWN/STANDBY
TJ = 25°C
0.4
Undervoltage
V
shutdown threshold
over full operating junction temperature range
0.3
0.5
(1)
Minimum and maximum limits are 100% production tested at 25ºC. Limits over the operating temperature range are specified through
correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL). All
electrical characteristics having room temperature limits are tested during production with TA = TJ = 25°C. All hot and cold limits are
specified by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
(2)
Device thermal limitations may limit usable range.
Copyright © 2005–2015, Texas Instruments Incorporated
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