2
LTC1841/LTC1842/LTC1843
ABSOLUTE MAXIMUM RATINGS
W
WW
U
(Note 1)
Voltage
V + to V – ................................................12V to – 0.3V
IN +, IN –, HYST ................. (V + + 0.3V) to (V – – 0.3V)
REF ................................... (V + + 0.3V) to (V – – 0.3V)
OUT ................................................ 12V to (V – – 0.3V)
Current
IN +, IN –, HYST ................................................. 20mA
REF ................................................................... 20mA
OUT .................................................................. 50mA
OUT Short-Circuit Duration (V +
≤ 5.5V) ...... Continuous
Power Dissipation ............................................. 500mW
Operating Temperature Range
LTC1841C/LTC1842C/LTC1843C ........... 0
°C to 70°C
LTC1841I/LTC1842I/LTC1843I .......... – 40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
PACKAGE/ORDER INFORMATION
W
U
1
2
3
4
8
7
6
5
TOP VIEW
OUT A
V –
IN A+
IN A–
OUT B
V +
IN B+
IN B–
S8 PACKAGE
8-LEAD PLASTIC SO
1841
1841I
S8 PART
MARKING
1
2
3
4
8
7
6
5
TOP VIEW
OUT A
V–
IN A+
IN B+
OUT B
V+
REF
HYST
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
TOP VIEW
OUT A
V–
IN A+
IN B–
OUT B
V+
REF
HYST
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 125°C/ W
ORDER PART
NUMBER
LTC1841CS8
LTC1841IS8
S8 PART
MARKING
ORDER PART
NUMBER
S8 PART
MARKING
1842
1842I
LTC1842CS8
LTC1842IS8
ORDER PART
NUMBER
LTC1843CS8
LTC1843IS8
1843
1843I
ELECTRICAL CHARACTERISTICS V+ = 5V, V– = 0V, TA = 25°C unless otherwise noted.
Consult factory for Military grade parts.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply
V +
Supply Voltage Range
LTC1841
q
2.0
11
V
LTC1842/LTC1843
q
2.5
11
V
ICC
Supply Current
HYST = REF (Note 2)
q
3.5
5.7
A
Comparator
VOS
Comparator Input Offset Voltage
(Note 3)
q
±3
±10
mV
IIN
Input Leakage Current (IN +, IN –)IN + = IN – = 2.5V (LTC1841),
q
±0.01
±1.0
nA
IN + = IN – = VREF (LTC1842/LTC1843)
VIN
Comparator Input Voltage Range
q
V –
V + – 1.3V
V
PSRR
Power Supply Rejection Ratio
V + = 2V to 11V (LTC1841),
0.1
1
mV/V
V + = 2.5V to 11V (LTC1842/LTC1843)
CMRR
Common Mode Rejection Ratio
VCM = V– to (V+ – 1.3V) LTC1841
q
0.1
1
mV/V
VHYST
Hysteresis Input Voltage Range
LTC1842/LTC1843
q
VREF – 50mV
VREF
V