LM3402/LM3402HV
Symbol
DIM COMPARATOR
V
IH
V
IL
I
DIM-PU
R
DS-ON
V
DR-UVLO
V
DR-HYS
Parameter
Logic High
Logic Low
DIM Pull-up Current
Buck Switch On Resistance
BOOT Under-voltage Lock-out
Threshold
BOOT Under-voltage Lock-out
Hysteresis
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Junction to Ambient
Conditions
DIM Increasing
DIM Decreasing
DIM = 1.5V
I
SW
= 200mA, BOOT-SW = 6.3V
BOOT–SW Increasing
BOOT–SW Decreasing
Min
2.2
Typ
Max
Units
V
0.8
75
0.7
1.7
3
400
1.5
4
V
µA
Ω
V
mV
N-MOSFET AND DRIVER
THERMAL SHUTDOWN
T
SD
T
SD-HYS
THERMAL RESISTANCE
165
25
MSOP-8 Package
PSOP-8 Package
200
50
°C
°C
°C/W
θ
JA
Note 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 specific performance is not guaranteed. For guaranteed specifications and the test conditions, see Electrical Characteristics.
Note 2:
The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3:
VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.
Note 4:
Typical specifications represent the most likely parametric norm at 25°C operation.
Note 5:
θ
JA
of 50°C/W with DAP soldered to a minimum of 2 square inches of 1 oz. copper on the top or bottom PCB layer.
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