Texas Instruments LM3404 Evaluation Boards LM3404FSTDIMEV/NOPB LM3404FSTDIMEV/NOPB Manuale Utente
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LM3404FSTDIMEV/NOPB
SNVS465F – OCTOBER 2006 – REVISED MAY 2013
(continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
MOSFET AND DRIVER
R
DS-ON
Buck Switch On Resistance
I
SW
= 200mA, BST-SW = 6.3V
0.37
0.75
Ω
V
DR-UVLO
BST Under-voltage Lock-out Threshold
BST–SW Increasing
1.7
3
4
V
V
DR-HYS
BST Under-voltage Lock-out Hysteresis
BST–SW Decreasing
400
mV
THERMAL SHUTDOWN
T
SD
Thermal Shutdown Threshold
165
°C
T
SD-HYS
Thermal Shutdown Hysteresis
25
°C
THERMAL RESISTANCE
SOIC-8 Package
155
θ
JA
Junction to Ambient
°C/W
So PowerPAD-8 Package
(2)
50
(2)
θ
JA
of 50°C/W with DAP soldered to a minimum of 2 square inches of 1oz. copper on the top or bottom PCB layer.
6
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