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| MIC2044_05 Datasheet, PDF (4/15 Pages) Micrel Semiconductor – Single Channel, High Current, Low Voltage, Protected Power Distribution Switch | |||
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MIC2044/2045
Absolute Maximum Ratings (Note 1)
VIN and VBIAS .................................................................................. 6V
/FAULT, PWRGD Output Voltage ................................... 6V
/FAULT, PWRGD Output Current .............................. 25mA
ESD Rating, Note 3
Human Body Model ................................................... 2kV
Machine Model ........................................................ 200V
Micrel
Operating Ratings (Note 2)
Supply Voltage
VIN ............................................................... 0.8V to 5.5V
VBIAS ........................................................... 1.6V to 5.5V
Continuous Output Current ................................... 1A to 6A
Ambient Temperature (TA) ........................... â40°C to 85°C
Package Thermal Resistance (Rθ(J-A))
TSSOP ................................................................ 85°C/W
Electrical Characteristics (Note 4)
VIN = VBIAS = 5V, TA = 25°C unless specified otherwise. Bold indicates â40°C to +85°C.
Symbol
Parameter
Condition
VIN
VBIAS
IBIAS
Switch Input Voltage
Bias Supply Voltage
VBIAS Supply Current - Switch OFF
VBIAS Supply Current - Switch ON
Note 5
VIN ⤠VBIAS
No load
No load
VEN
VENHYST
IEN
RDS(ON)
ILEAK
CLF
VTH
VLATCH
ILATCH
VOL
IOFF
VUV
VUVHYST
Enable Input Voltage
VIL(max)
VIH(min)
Enable Input Threshold Hysteresis
Enable Input Current
Switch Resistance
Output Leakage Current
Current Limit Factor
Note 6
PGREF Threshold
Output Reset Threshold
Latched Output Off Current
Output Low Voltage
(/FAULT, PWRGD)
/FAULT, PWRGD Off Current
Undervoltage Lockout Threshold
Undervoltage Lockout
Threshold Hysteresis
VEN = 0V to 5.5V
VIN = VBIAS = 3V, 5V
IOUT = 500mA
Output off
VIN = 3V, 5V, 0.5V ⤠VOUT < 0.5VIN
1A ⤠IOUT ⤠6A
VIN = VBIAS = 1.6V to 5.5V
VIN = 0.8V to 5.5V
VOUT rising (MIC2045)
Output latched off (MIC2045)
IOL (/FAULT) = 15mA
IOL (PWRGD) = 5mA
VFAULT = VPWRGD = 5V
VIN rising
VIN falling
VUVINTH
VUVINHYST
UVLO Adjust Pin Threshold Voltage
UVLO Adjust Pin Threshold Hysteresis
Overtemperature Threshold
VIN rising
VIN falling
TJ increasing
TJ decreasing
Min Typ Max Units
0.8
5.5
V
1.6
5.5
V
0.1
5
µA
300 400
µA
2.4
1.5
V
3.5
2.5
V
100
mV
â1
.01
1
µA
20
30
mâ¦
10
µA
300 380 460 Aâ¢â¦
215 230 245 mV
VINâ.0.2
V
1
3
5
mA
0.4
V
1
µA
1.30 1.45 1.58
V
1.20 1.35 1.50
V
100
mV
200 230 260 mV
185 215 245 mV
15
mV
140
°C
120
°C
MIC2044/2045
4
January 2005
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