Micrel, Inc.
MIC2085/2086
May 2006
5
M9999-050406
(408) 955-1690
Absolute Maximum Ratings
(1)
(All voltages are referred to GND)
Supply Voltage (V
CC
)....................................... 0.3V to 33V
SENSE Pin........................................... 0.3V to V
CC
+ 0.3V
GATE Pin ........................................................ 0.3V to 22V
ON, DIS, /POR, PWRGD, /FAULT,
COMP+, COMP-, COMPOUT......................... 0.3V to 20V
CRWBR, FB, OV, REF...................................... 0.3V to 6V
Maximum Currents
Digital Output Pins ......................................................10mA
(/POR, /FAUTL, PWRGD, COMPOUT)
DIS Pin........................................................................30mA
EDS Rating
Human Body Model.................................................2kV
Machine Model ......................................................200V
Operating Ratings
(2)
Supply voltage (V
CC
) .................................... 2.3V to +16.5V
Operating Temperature Range...................40癈 to +85癈
Junction Temperature (T
J
) .........................................125癈
Package Thermal Resistance R
?JA)
16-pin QSOP ...................................................112癈/W
20-pin QSOP .....................................................91癈/W
Electrical Characteristics
(3)
V
CC
= 5.0V; T
A
= 25癈, unless otherwise noted. Bold indicates specifications over the full operating temperature range of
40癈 to +85癈.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
CC
Supply Voltage
2.3
16.5
V
I
CC
Supply Current
1.6
2.5
mA
V
UV
Undervoltage Lockout
Threshold
V
CC
rising
V
CC
falling
2.05
1.85
2.18
2.0
2.28
2.10
V
V
V
UVHYST
UV Lockout Hysteresis
180
mV
V
FB
FB (Power-Good) Threshold
Voltage
FB rising
1.19
1.24
1.29
V
V
FBHYST
FB Hysteresis
3
mV
V
OV
OV Pin Threshold Voltage
OV pin rising
1.19
1.24
1.29
mV
V
OV
OV Pin Threshold Voltage Line
Regulation
2.3V < V
CC
< 16.5V
5
15
mV
V
OVHYST
OV Pin Hysteresis
3
mV
I
OV
OV Pin Current
0.2
礎
V
TH
POR Delay and Overcurrent
(CFILTER) Timer Threshold
V
CPOR
, V
CFILTER
rising
1.19
1.24
1.29
V
I
CPOR
Power-On Reset Timer Current Timer on
Timer off
2.5
2.0
5
1.5
礎
mA
I
TIMER
Current Limit /Overcurrent
Timer Current (CFILTER)
Timer on
Timer off
30
20
2.5
15
礎
mA
V
CR
CRWBR Pin Threshold Voltage 2.3V < V
CC
< 16.5V
445
470
495
mV
V
CR
CRWBR Pin Threshold Voltage
Line Regulation
2.3V < V
CC
< 16.5V
4
15
礎
mA
I
CR
CRWBR Pin Current
CRWBR On, V
CRWBR
= 0V
CRWBR On, V
CRWBR
= 2.1V
CRWBR Off, V
CRWBR
= 1.5V
60
45
1.5
3.3
30
1.0
礎
mA
mA
V
TRIPSLOW
40
48
55
mV
V
TRIP
Circuit Breaker Trip Voltage
(Current Limit Threshold)
V
TRIP
= V
CC
= V
SENSE
2.3V d V
CC
d 16.5V
V
TRIPFAST
x = J
x = K
x = L
80
95
150
200
110
mV
mV
mV
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