Micrel, Inc.
MIC2590B
Symbol
V
FILTER
I
FILTER
I
SLEW
V
THILIMIT
Parameter
C
FILTER
Threshold Voltage
C
FILTER
[A/B] Charge Current
12V
SLEW
[A/B] Charge Current
Current Limit Threshold Voltages
5V[A/B] Supplies
3.3V[A/B] Supplies
Condition
V
[5/3]
V
IN
– V
[5/3]
V
SENSE
> V
THILIMIT
During turn-on only
V
5VIN
– V
5VSENSE
V
3VIN
– V
3VSENSE
MIC2590B-2
MIC2590B-5
Min
1.20
1.80
13
35
35
90
Typ
1.25
2.5
22
50
50
113
Disabled
Max
1.30
5.0
35
65
65
135
0.8
Units
V
µA
µA
mV
mV
mV
V
V
V
V
THFAST
V
IL
V
OL
V
IH
5V
OUT
[A/B] and 3V
OUT
[A/B]
Fast-Trip Thresholds
LOW-Level Input Voltage
(SCL,SDA,ON[A/B],A[0-2],GPI[A/B])
Output LOW Voltage
/FAULT[A/B], /INT, SDA
HIGH-Level Input Voltage
SCL,SDA,ON[A/B],A[0-2],
AUXEN[A/B],GPI[A/B])
I
OL
= 3mA
2.1
0.4
R
PULL-UP
I
IL
I
LKG(OFF)
T
OV
Internal Pullups from A[0-2] to V
STBY
Input Leakage Current
SCL, ON[A/B],AUXEN[A/B], GP[A/B])
Off-State Leakage Current
SDA,/FAULT[A/B],/INT
Overtemperature Shutdown & Reset
Thresholds, with overcurrent on slot
Overtemperature Shutdown & Reset
Thresholds, all other conditions (all
outputs will latch OFF)
T
J
Increasing, each slot,
Note 5
T
J
Decreasing, each slot,
Note 5
T
J
Increasing, both slots,
Note 5
T
J
Decreasing, both slots,
Note 5
40
±5
±5
140
130
160
150
kΩ
µA
µA
°C
°C
°C
°C
R
OUT(ON)
R
OUT(12V)
R
OUT(12MV)
R
OUT(AUX)
V
OFF
V
OFF(+12V)
V
OFF(–12V)
V
OFF(AUX)
I
THSLOW
I
LIM(12)
I
LIM(12M)
I
THFAST
I
AUX(THRESH)
I
SC(TRAN)
Output MOSFET Resistance
12V MOSFET
–12V MOSFET
V
AUX
MOSFET
Off-State Output Offset Voltage
12V
OUT
[A/B]
12MV
OUT
[A/B]
V
AUX
[A/B]
Current Limit Threshold
12V MOSFET
–12V MOSFET
Fast-Trip Thresholds
Auxiliary Output Current Limit Threshold
Figure 4
Maximum Transient Short Circuit
Current
12V
OUT
[A/B] = 0V
12MV
OUT
[A/B] = 0V
12V
OUT
[A/B] (MIC2590B-2)
12MV
OUT
[A/B] (MIC2590B-2)
Current which must be drawn
from V
AUX
to register as a fault
V
AUX
Enabled, then Grounded
0.52
–0.11
1.0
–0.20
1.0
–0.2
2.15
–0.45
0.84
I
MAX
= V
STBY
/ R
DS(AUX)
1.5
–0.3
3.0
–0.6
A
A
A
A
A
A
12V
OUT
[A/B] = Off, T
J
= 125°C
12MV
OUT
[A/B] = Off, T
J
= 125°C
V
AUX
[A/B] = Off, T
J
= 125°C
–50
50
50
mV
mV
mV
I
DS
= 500mA, T
J
= 125°C
I
DS
= 100mA, T
J
= 125°C
I
DS
= 375mA, T
J
= 125°C
500
2
400
mΩ
Ω
mΩ
September 2008
7
M9999-091808
MICREL [ MICREL SEMICONDUCTOR ]
