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 µA
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
> 10µA 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 µA
(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 µA
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 µA
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 µs
Low Trip Time See Timing Diagram (Figure 3)
t
OCSLOW
Slow Overcurrent Sense to GATE V
CCx
– V
SENSEx
= 50mV, C
FILTER
= 0 20 µs
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.
