MIC2042/2043
Micrel
Symbol
tFLAG
tON
Parameter
Condition
Min
21
Typ
28
Max
35
Units
ms
µs
Flag Response Delay
Output Turn-on Delay
Output Turn-on Rise Time
Output Turn-off Delay
Output Turn-off Fall Time
VIN = VBIAS = 3V, 5V
RLOAD = 10Ω, CLOAD = 1µF
RLOAD = 10Ω, CLOAD = 1µF
RLOAD = 10Ω, CLOAD = 1µF
RLOAD = 10Ω, CLOAD = 1µF
600
1
800
1.5
1
1000
2
tR
ms
µs
tOFF
tF
5
24
µs
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.
5. OFF is V < 1.0V for MIC2042/MIC2043-1 and V > 4.0V for MIC2042/MIC2043-2. ON is V > 4.0V for MIC2042/MIC2043-1 and V < 1.0V for
EN
EN
EN
EN
MIC2042/MIC2043-2.
6. The current limit is determined as follows: I
= CLF/R
.
LIM
SET
Timing Diagrams
tOFF
50%
0
0
VEN
tON
90%
10%
VOUT
(a) MIC2042/43-1
50%
0
0
VEN
tOFF
tON
90%
10%
(b) MIC2042/43-2
VOUT
Figure 1. Turn-On/Turn-Off Delay
Increase the load
0
0
VEN
VIN 0.2V
VOUT
ILIMIT
0
IOUT
tFLAG
0
/FAULT
Figure 2. Overcurrent Fault Response — MIC2042-2
January 2005
5
M0512-112603
MICREL [ MICREL SEMICONDUCTOR ]
