MIC2042/2043
Symbol
t
FLAG
t
ON
t
R
t
OFF
t
F
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
Micrel
Condition
V
IN
= V
BIAS
= 3V, 5V
R
LOAD
= 10Ω, C
LOAD
= 1µF
R
LOAD
= 10Ω, C
LOAD
= 1µF
R
LOAD
= 10Ω, C
LOAD
= 1µF
R
LOAD
= 10Ω, C
LOAD
= 1µF
Min
21
600
1
Typ
28
800
1.5
1
24
Max
35
1000
2
5
Units
ms
µs
ms
µs
µs
Parameter
Flag Response Delay
Output Turn-on Delay
Output Turn-on Rise Time
Output Turn-off Delay
Output Turn-off Fall Time
5. OFF is V
EN
< 1.0V for MIC2042/MIC2043-1 and V
EN
> 4.0V for MIC2042/MIC2043-2. ON is V
EN
> 4.0V for MIC2042/MIC2043-1 and V
EN
< 1.0V for
MIC2042/MIC2043-2.
6. The current limit is determined as follows: I
LIM
= CLF/R
SET
.
Timing Diagrams
50%
V
EN
0
t
ON
t
OFF
90%
10%
(a) MIC2042/43-1
V
OUT
0
50%
V
EN
0
t
ON
t
OFF
90%
V
OUT
0
10%
(b) MIC2042/43-2
Figure 1. Turn-On/Turn-Off Delay
V
EN
0
V
IN
0.2V
Increase the load
V
OUT
0
I
LIMIT
I
OUT
0
t
FLAG
/FAULT
0
Figure 2. Overcurrent Fault Response — MIC2042-2
January 2005
5
M0512-112603
MICREL [ MICREL SEMICONDUCTOR ]
