MIC2085(2004) Ver la hoja de datos (PDF) - Micrel
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Fabricante
MIC2085 Datasheet PDF : 28 Pages
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MIC2085/2086
Micrel
Absolute Maximum Ratings(1)
Operating Ratings(2)
(All voltages are referred to GND)
Supply Voltage (VCC) ..................................... –0.3V to 33V
SENSE Pin .......................................... –0.3V to VCC + 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, /FAULT, PWRGD, COMPOUT)
DIS Pin ....................................................................... 30mA
ESD Rating:
Human Body Model ................................................... 2kV
Machine Model ........................................................ 200V
Supply Voltage (VCC) .................................... 2.3V to 16.5V
Operating Temperature Range .................. –40°C to +85°C
Junction Temperature (TJ) ........................................ 125°C
Package Thermal Resistance Rθ(J-A)
16-pin QSOP ..................................................... 112°C/W
20-pin QSOP ....................................................... 91°C/W
Electrical Characteristics(3)
VCC = 5.0V, TA = 25°C unless otherwise noted. Bold indicates specifications over the full operating temperature range of –40°C to +85°C.
Symbol
Parameter
Condition
Min Typ Max Units
VCC
ICC
VUV
VUVHYST
VFB
VFBHYST
VOV
∆VOV
Supply Voltage
Supply Current
Undervoltage Lockout Threshold
UV Lockout Hysteresis
VCC rising
VCC falling
FB (Power-Good) Threshold Voltage FB rising
FB Hysteresis
OV Pin Threshold Voltage
OV pin rising
OV Pin Threshold Voltage
Line Regulation
2.3V < VCC < 16.5V
2.3
16.5
V
1.6
2.5
mA
2.05 2.18 2.28
V
1.85 2.0 2.10
V
180
mV
1.19 1.24 1.29
V
3
mV
1.19 1.24 1.29 mV
5
15
mV
VOVHYST
IOV
VTH
OV Pin Hysteresis
OV Pin Current
POR Delay and Overcurrent (CFILTER) VCPOR, VCFILTER rising
Timer Threshold
3
mV
0.2
µA
1.19 1.24 1.29
V
ICPOR
Power-On Reset Timer Current
Timer on
Timer off
–2.5 –2.0 –1.5 µA
5
mA
ITIMER
Current Limit /Overcurrent
Timer Current (CFILTER)
Timer on
Timer off
–30 –20 –15
µA
2.5
mA
VCR
∆VCR
CRWBR Pin Threshold Voltage
CRWBR Pin Threshold Voltage
Line Regulation
2.3V < VCC < 16.5V
2.3V < VCC < 16.5V
445 470 495 mV
4
15
mV
ICR
VTRIP
CRWBR Pin Current
Circuit Breaker Trip Voltage
(Current Limit Threshold)
CRWBR On, VCRWBR = 0V
CRWBR On, VCRWBR = 2.1V
CRWBR Off, VCRWBR = 1.5V
–60 –45 –30
µA
–1.5 –1.0 mA
3.3
mA
VTRIP = VCC –VSENSE
VTRIPSLOW
40
48
55
mV
2.3V ≤ VCC ≤ 16.5V
VTRIPFAST x = J 80
x=K
x=L
95
110
mV
150
mV
200
mV
VGS
External Gate Drive
VGATE – VCC
VCC < 3V
4
8
9
V
5V < VCC < 9V
11
12
13
V
9V < VCC < 15.0V 4.5 21–VCC 13
V
January 2004
5
M0235-121903
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