MIC2042/2043
Micrel
Absolute Maximum Ratings(1)
Operating Ratings(2)
Supply Voltage
Supply Voltage
V
and V
............................................................................. 6V
V
............................................................... 0.8V to 5.5V
IN
BIAS
IN
/FAULT, PWRGD Output Voltage ...................................6V
/FAULT, PWRGD Output Current ..............................25mA
V
BIAS
........................................................... 1.6V to 5.5V
Continuous Output Current ................................ 0.5A to 3A
Junction Temperature (T ) ...................... Internally Limited
ESD Rating
Ambient Temperature (T ) ........................... –40°C to 85°C
Package Thermal Resistance
J
A
(3)
Human Body Model................................................... 3kV
Machine Model ........................................................200V
SOP (θ ) ..........................................................160°C/W
JA
TSSOP (θ ) .......................................................85°C/W
JA
Electrical Characteristics(4)
VIN = VBIAS = 5V; TA = 25°C unless specified otherwise. Bold indicates –40°C to +85°C.
Symbol
Parameter
Condition
IN ≤ VBIAS
Min
0.8
1.6
1.6
Typ
Max
5.5
Units
VIN
Switch Input Voltage
V
14-pin TSSOP
8-pin SOP
V
V
V
5.5
VBIAS
IBIAS
Bias Supply Voltage
(14-pin TSSOP)
5.5
VBIAS Supply Current - Switch OFF No load
VBIAS Supply Current - Switch ON
Note 5
0.1
300
5
400
µA
µA
No load
VEN
Enable Input Voltage
VIL(max)
VIH(min)
2.4
2.5
100
.01
40
1.5
V
V
3.5
–1
VENHYST
IEN
Enable Input Threshold Hysteresis
Enable Input Current
mV
µA
mΩ
VEN = 0V to 5.5V
1
RDS(ON)
Switch Resistance
VIN = VBIAS = 3V, 5V
IOUT = 500mA
60
ILEAK
CLF
Output Leakage Current
Current Limit Factor(2)
Output off
10
µA
VIN = 5V, 0.5V ≤ VOUT < 0.5VIN
0.5A ≤ IOUT ≤ 3A
310
320
205
395
385
485
A×Ω
VIN = 3V, 0.5V ≤ VOUT < 0.5VIN
450
245
A×Ω
mV
V
0.5A ≤ IOUT ≤ 3A
VTH
PGREF and UVLOIN Threshold
Output Reset Threshold
VIN = VBIAS = 1.6V to 5.5V
(14-pin TSSOP)
225
VLATCH
VIN = 0.8V to 5.5V
VOUT rising (MIC2043)
VIN–.0.2
3
ILATCH
VOL
Latched Output Off Current
Output latched off (MIC2043)
IOL (/FAULT) = 15mA
IOL (PWRGD) = 5mA
VFAULT = VPWRGD = 5V
VIN rising
1
5
mA
V
Output Low Voltage
(/FAULT, PWRGD)
0.4
IOFF
VUV
/FAULT, PWRGD Off Current
1
µA
V
Undervoltage Lockout Threshold
1.30
1.20
1.45
1.35
100
1.58
1.50
VIN falling
V
VUVHYST
VUVINTH
Undervoltage Lockout
Threshold Hysteresis
mV
UVLO Adjust Pin Threshold Voltage VIN rising
VIN falling
205
185
225
205
20
245
225
mV
mV
mV
°C
VUVINHYST
UVLO Adjust Pin Threshold Hysteresis
Overtemperature Threshold
TJ increasing
TJ decreasing
140
120
°C
M0512-112603
4
January 2005
MICREL [ MICREL SEMICONDUCTOR ]
