Datasheet

LM25574, LM25574-Q1
www.ti.com SNVS483G –JANUARY 2007–REVISED APRIL 2013
Electrical Characteristics (continued)
Specifications with standard typeface are for T
J
= 25°C, and those with boldface type apply over full Operating Junction
Temperature range. V
IN
= 24V, R
T
= 32.4kΩ unless otherwise stated.
(1)
Symbol Parameter Conditions Min Typ Max Units
ERROR AMPLIFIER
Feedback Voltage Vfb = COMP 1.207 1.225 1.243 V
FB Bias Current 17 nA
DC Gain 70 dB
COMP Sink / Source Current 3 mA
Unity Gain Bandwidth 3 MHz
DIODE SENSE RESISTANCE
D
SENSE
250 mΩ
THERMAL SHUTDOWN
Tsd Thermal Shutdown Threshold 165 °C
Thermal Shutdown Hysteresis 25 °C
THERMAL RESISTANCE
θ
JC
Junction to Case 30 °C/W
θ
JA
Junction to Ambient 90 °C/W
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