1540 查看數據表（PDF） - Linear Technology
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1540 Datasheet PDF : 12 Pages
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LTC1540
ABSOLUTE MAXIMUM RATINGS
Voltage
V + to V –, V + to GND, GND 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 ............................... (V + + 0.3V) to (GND – 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
LTC1540C .............................................. 0°C to 70°C
LTC1540I ............................................ – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
(DD Package) ................................... – 65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
GND 1
V– 2
IN+ 3
IN– 4
8 OUT
7 V+
6 REF
5 HYST
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 160°C/ W (NOTE 2) UNDERSIDE METAL
CONNECTED TO V– (PCB CONNECTION OPTIONAL)
TOP VIEW
GND 1
V– 2
IN + 3
IN – 4
8 OUT
7 V+
6 REF
5 HYST
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 175°C/ W
TOP VIEW
GND 1
V– 2
IN+ 3
IN– 4
8 OUT
7 V+
6 REF
5 HYST
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 250°C/ W
ORDER PART
NUMBER
LTC1540CDD
LTC1540IDD
DD
PART MARKING*
LAAS
ORDER PART
NUMBER
LTC1540CS8
LTC1540IS8
S8
PART MARKING
1540
1540I
ORDER PART
NUMBER
LTC1540CMS8
LTC1540IMS8
MS8
PART MARKING
LTCE
LTADV
Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are identified by a label on the shipping container.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V + = 5V, V – = GND = 0V, TA = 25°C unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
Power Supply
V+
Supply Voltage Range
ICC
Supply Current
IN + = IN – = 80mV, HYST = REF, C-Grade
IN + = IN – = 80mV, HYST = REF, I-Grade
● 2.0
11.0
V
●
0.3
0.68
µA
●
0.71
µA
Comparator
VOS
Comparator Input Offset Voltage
VCM = 2.5V
IIN
VCM
CMRR
Input Leakage Current (IN +, IN –)
Input Leakage Current (HYST)
LTC1540CMS8/IMS8
VIN + = VIN– = 2.5V
Comparator Input Common Mode Range
Common Mode Rejection Ratio
V – to V + – 1.3V
±12
mV
●
± 15
mV
●
±16
mV
●
±0.01 ±1.0
nA
●
±0.02 ±1.0
nA
●
V–
V + – 1.3V
V
0.1
1
mV/V
PSRR Power Supply Rejection Ratio
V + = 2V to 11V
0.1
1
mV/V
sn1540 1540fas
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