MIC2045 Micrel Semiconductor, MIC2045 Datasheet - Page 5

• Manufacturer Part Number: MIC2045
• Description: (MIC2044 / MIC2045) PROTECTED POWER DISTRIBUTION SWITCH
• Manufacturer: Micrel Semiconductor

www.DataSheet4U.com
Symbol
t
t
t
t
t
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
Timing Diagrams
October 2003
MIC2044/2045
FLAG
ON
R
OFF
F
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model: 1.5k in series with 100pF.
Specification for packaged product only.
OFF is V
V
The current limit is determined as follows: I
EN
< 1.0V for MIC2044/MIC2045 –2.
Parameter
Flag Response Delay
Output Turn-on Delay
Output Turn-on Rise Time
Output Turn-off Delay
Output Turn-off Fall Time
EN
< 1.0V for MIC2044/MIC2045–1 and V
/FAULT
V
I
V
V
V
OUT
OUT
V
V
EN
OUT
OUT
EN
EN
0
0
0
0
0
0
0
0
Figure 2. Overcurrent Fault Response — MIC2044-2
V
IN
0.2V
I
LIMIT
50%
50%
LIM
Figure 1. Turn-On/Turn-Off Delay
= CLF/R
t
ON
EN
Condition
V
R
R
R
R
IN
LOAD
LOAD
LOAD
LOAD
> 4.0V for MIC2044/MIC2045 –2. ON is V
t
ON
10%
= V
SET
10%
= 10 , C
= 10 , C
= 10 , C
= 10 , C
.
BIAS
(a) MIC2044/45-1
(b) MIC2044/45-2
= 3V, 5V
5
Increase the load
LOAD
LOAD
LOAD
LOAD
t
FLAG
= 1 F
= 1 F
= 1 F
= 1 F
t
OFF
t
OFF
EN
90%
> 4.0V for MIC2044/MIC2045–1 and
90%
0.75
Min
1.5
25
Typ
2.5
32
24
1
1
MIC2044/2045
Max
1.25
3.5
40
5
Micrel
Units
ms
ms
ms
s
s