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2
LTC1440/LTC1441/LTC1442
144012fd
S8 PART
MARKING
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 (LTC1440) .............. (V + + 0.3V) to (GND – 0.3V)
OUT (LTC1441/LTC1442) ... (V + + 0.3V) to (V – – 0.3V)
Current
IN +, IN –, HYST ................................................. 20mA
REF ................................................................... 20mA
OUT .................................................................. 50mA
ABSOLUTE MAXIMUM RATINGS
W
WW
U
OUT Short-Circuit Duration (V +
≤ 5.5V) .......Continuous
Power Dissipation .............................................. 500mW
Operating Temperature Range
LTC144XC ............................................... 0
°C to 70°C
LTC144XI ........................................... – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 150°C
Storage Temperature Range
(DD Package) ................................... – 65
°C to 125°C
Junction Temperature ........................................... 150
°C
Junction Temperature (DD Package) .................... 125
°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
PACKAGE/ORDER INFORMATION
W
U
Consult LTC Marketing for parts specified with wider operating temperature ranges.
* The temperature grade is identified by a label on the shipping container.
(Note 1)
TJMAX = 150°C, θJA = 130°C/ W (N8)
TJMAX = 150°C, θJA = 175°C/ W (S8)
TJMAX = 150°C, θJA = 250°C/ W
ORDER PART
NUMBER
LTC1440CDD
LTC1440IDD
DD8 PART
MARKING*
LBTH
ORDER PART
NUMBER
LTC1440CMS8
LTC1440IMS8
MS8 PART
MARKING*
LTBX
ORDER PART
NUMBER
LTC1440CN8
LTC1440CS8
LTC1440IN8
LTC1440IS8
S8 PART
MARKING
1440
1440I
TJMAX = 125°C, θJA = 160°C/ W (DD)
UNDERSIDE METAL CONNECTED TO V–
(PCB CONNECTION OPTIONAL)
1
2
3
4
8
7
6
5
TOP VIEW
GND
V–
IN+
IN–
OUT
V+
REF
HYST
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
ORDER PART
NUMBER
ORDER PART
NUMBER
S8 PART
MARKING
1441
1441I
TJMAX = 150°C, θJA = 130°C/ W (N8)
TJMAX = 150°C, θJA = 175°C/ W (S8)
TJMAX = 150°C, θJA = 130°C/ W (N8)
TJMAX = 150°C, θJA = 175°C/ W (S8)
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
N8 PACKAGE
8-LEAD PDIP
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
N8 PACKAGE
8-LEAD PDIP
LTC1441CN8
LTC1441CS8
LTC1441IN8
LTC1441IS8
LTC1442CN8
LTC1442CS8
LTC1442IN8
LTC1442IS8
1442
1442I
1
2
3
4
GND
V–
IN+
IN–
8
7
6
5
OUT
V+
REF
HYST
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TOP VIEW
DD PACKAGE
8-LEAD (3mm
× 3mm) PLASTIC DFN
5
6
7
8
4
3
2
1
GND
V–
IN+
IN–
OUT
V+
REF
HYST
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF
Lead Free Tape and Reel: Add #TRPBF