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LM2594HVN-3.3 Arkusz danych(PDF) 3 Page - Texas Instruments

Numer części LM2594HVN-3.3
Szczegółowy opis  LM2594/LM2594HV SIMPLE SWITCHER짰 Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
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Strona internetowa  http://www.ti.com
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LM2594HVN-3.3 Arkusz danych(HTML) 3 Page - Texas Instruments

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LM2594, LM2594HV
www.ti.com
SNVS118C – DECEMBER 1999 – REVISED APRIL 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1) (2)
Maximum Supply Voltage
LM2594
45V
LM2594HV
60V
ON /OFF Pin Input Voltage
−0.3 ≤ V ≤ +25V
Feedback Pin Voltage
−0.3 ≤ V ≤+25V
Output Voltage to Ground (Steady State)
−1V
Power Dissipation
Internally limited
Storage Temperature Range
−65°C to +150°C
ESD Susceptibility
Human Body Model(3)
2 kV
Lead Temperature
D8 Package
Vapor Phase (60 sec.)
+215°C
Infrared (15 sec.)
+220°C
P Package (Soldering, 10 sec.)
+260°C
Maximum Junction Temperature
+150°C
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications and test
conditions, see the Electrical Characteristics.
(2)
If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3)
The human body model is a 100 pF capacitor discharged through a 1.5k resistor into each pin.
Operating Conditions
Temperature Range
−40°C ≤ TJ +125°C
Supply Voltage
LM2594
4.5V to 40V
LM2594HV
4.5V to 60V
LM2594/LM2594HV-3.3 Electrical Characteristics
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range.VINmax= 40V for the LM2594 and 60V for the LM2594HV.
Symbol
Parameter
Conditions
LM2594/LM2594HV-3.3
Units
(Limits)
Typ(1)
Limit(2)
SYSTEM PARAMETERS(3) Test Circuit Figure 20
VOUT
Output Voltage
4.75V
≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A
3.3
V
3.432/3.465
V(min)
3.168/3.135
V(max)
η
Efficiency
VIN = 12V, ILOAD = 0.5A
80
%
(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 specified via correlation using standard Statistical Quality Control
(SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(3)
External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect
switching regulator system performance. When the LM2594/LM2594HV is used as shown in the Figure 20 test circuit, system
performance will be as shown in system parameters section of Electrical Characteristics.
Copyright © 1999–2013, Texas Instruments Incorporated
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