Datasheet

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
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
T
JMAX
= 150°C, θ
JA
= 125°C/ W
T
JMAX
= 150°C, θ
JA
= 125°C/ W T
JMAX
= 150°C, θ
JA
= 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, T
A
= 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 ● 2.0 11 V
LTC1842/LTC1843
● 2.5 11 V
I
CC
Supply Current HYST = REF (Note 2) ● 3.5 5.7 µA
Comparator
V
OS
Comparator Input Offset Voltage (Note 3) ● ±3 ±10 mV
I
IN
Input Leakage Current (IN
+
, IN
–
)IN
+
= IN
–
= 2.5V (LTC1841), ● ±0.01 ±1.0 nA
IN
+
= IN
–
= V
REF
(LTC1842/LTC1843)
V
IN
Comparator Input Voltage Range ● 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 V
CM
= V
–
to (V
+
– 1.3V) LTC1841 ● 0.1 1 mV/V
V
HYST
Hysteresis Input Voltage Range LTC1842/LTC1843 ● V
REF
– 50mV V
REF
V