MIC2044_05 Datasheet, PDF (8/15 Pages) Micrel Semiconductor – Single Channel, High Current, Low Voltage, Protected Power Distribution Switch

MIC2044/2045
Functional Characteristics
5V Turn-On
5V Turn-Off
Micrel
V =V
= 5.0V
IN
R
W BIAS
= 1.65
m ^LOAD
C
= 47 F
W ^LOAD
R
= 100
SET
TIME (1ms/div.)
Latched Output
MIC2045
V_IN = V_BIAS = 5.0V
R_LOAD = 1.8Ω
C_LOAD = 47µF
R_SET = 220Ω
TIME (5ms/div.)
Current Limit Response
V_IN = V_BIAS = 5.0V
R_LOAD = 1.2Ω
C_LOAD = 47µF
R_SET = 100Ω
TIME (5ms/div.)
MIC2044/2045
8
V =V
= 5.0V
IN
BIAS
R
= 1.65V
LOAD
C
m = 47 F
LOAD
R
W = 100
SET
m TIME (500 s/div.)
Latched Output Reset
MIC2045
4.82V
V_IN = V_BIAS = 5.0V
R_LOAD toggles from 2Ω to OPEN
C_LOAD = 47µF
R_SET = 220Ω
TIME (50ms/div.)
UVLO Response
1.45V
V_IN ramps 0V to 1.8V
R_LOAD = 5Ω
C_LOAD = 47µF
R_SET = 220Ω
TIME (2.5ms/div.)
January 2005