March 2005
7
MIC2584/2585
MIC2584/2585
Micrel
Symbol
Parameter
Condition
Min
Typ
Max
Units
I
CPOR
Power-on Reset Current
V
CC1
= 5V, C
POR
= 0.5V
Charge current
3.5
2.5
1.5
礎
Sink current
2.5
V
POR
Power-on Reset Delay Threshold
Start-up cycle
1.190
1.235
1.290
V
V
PORHYS
Power-on Reset Delay Threshold
25
mV
Hysteresis
V
START
Start-up Threshold
Start-up cycle
0.25
0.30
0.35
V
V
TRK
TRK Pin Threshold
ON deasserted, I
GATE
> 10礎
0.25
0.30
0.35
V
(MIC2585 only)
V
CC1
= V
CC2
= 5V
V
TRKOFF
TRK Pin Turn-off Voltage
ON asserted, V
SENSE2
V
OUT2
150
250
400
mV
(MIC2585 only)
V
CC1
= V
CC2
= 5V
V
FB1
FB1 Threshold
1.190
1.235
1.290
V
V
FB1HYS
FB1 Threshold Hysteresis
25
mV
V
FB2
FB2 Threshold
0.75
0.80
0.85
V
V
FB2HYS
FB2 Threshold Hysteresis
25
mV
V
OV1
OV1 Threshold
1.190
1.235
1.290
V
(MIC2585 only)
V
OV1HYS
OV1 Threshold Hysteresis
25
mV
(MIC2585 only)
V
OV2
OV2 Threshold
0.75
0.80
0.85
V
(MIC2585 only)
V
OV2HYS
OV2 Threshold Hysteresis
25
mV
(MIC2585 only)
I
DELAY
Delay Timer Pin Current
V
CC1
= V
CC2
= 5V
Timer charge current
9
6
3
礎
(MIC2585 only)
Timer discharge current
200
V
DELAY
Delay Timer Pin Threshold
1.190
1.235
1.290
V
(MIC2585 only)
V
DLYHYS
Delay Timer Pin Threshold
25
mV
Hysteresis (MIC2585 only)
V
ON
ON Pin Input Threshold
1.190
1.235
1.290
V
V
ONHYS
ON Pin Hysteresis
25
mV
I
ON
ON Pin Input Current
V
ON
= V
CCX
0.1
0.5
礎
V
OL
/FAULT , /POR , PG1, PG2 Output
I
OUT
= 1.6mA, V
CC1
= 5V
0.4
V
Low Voltage (PG1 and PG2 for
MIC2585 only)
I
PULLUP
/FAULT , /POR , PG1, PG2 Active
ON asserted, V
FB1
> 1.25V, V
FB2
> 0.8V
7
12
22
礎
Output Pull-up Current
/POR = V
CC1
1V
(PG1 and PG2 for MIC2585 only)
V
GATEWIN
GATE1 and GATE2 ON/OFF
See Timing Diagram (Figure 2)
100
250
mV
Voltage Window (Tracking enabled)
Note 3
AC Parameters
t
OCFAST
Fast Overcurrent Sense to GATE
V
CCx
V
SENSEx
= 100mV, C
GATE
= 10nF
1
祍
Low Trip Time
See Timing Diagram (Figure 3)
t
OCSLOW
Slow Overcurrent Sense to GATE
V
CCx
V
SENSEx
= 50mV, C
FILTER
= 0
20
祍
Low Trip Time
Note 1. Exceeding the absolute maximum rating may damage the device.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3. For the MIC2584, V
GATEWIN
is specified only when ON is asserted.
Note 4. Specification for packaged product only.
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