Micrel MIC2044, Руководство пользователя

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MIC2044/2045 Micrel
MIC2044/2045 8 January 2005
Functional Characteristics
W
m!
W
5V Turn-On
" #$% &
m!
W
5V Turn-Off
" #m$ %
I
OUT
2A/div
V
OUT
5V/div
/F
AUL
T
5V/div
EN
5V/div
V
IN
= V
BIAS
= 5.0V
R
LOAD
= 1.8
Ω
C
LOAD
= 47 µ F
R
SET
= 220 Ω
Latched Output
MIC2045
TIME (5ms/div.)
V
OUT
2V/div
/F
AUL
T
5V/div
EN
5V/div
V
IN
= V
BIAS
= 5.0V
R
LOAD
toggles from 2
Ω
to OPEN
C
LOAD
= 47 µ F
R
SET
= 220 Ω
4.82V
Latched Output Reset
MIC2045
TIME (50ms/div.)
I
OUT
200mA/div
V
IN
1V/div
V
OUT
1V/div
V
IN
ramps 0V to 1.8V
R
LOAD
= 5 Ω
C
LOAD
= 47 µ F
R
SET
= 220
Ω
UVLO Response
TIME (2.5ms/div.)
1.45V
I
OUT
2A/div
/F
AUL
T
5V/div
EN
5V/div
V
OUT
2V/div
V
IN
= V
BIAS
= 5.0V
R
LOAD
= 1.2 Ω
C
LOAD
= 47 µ F
R
SET
= 100 Ω
Current Limit Response
TIME (5ms/div.)