Datasheet

2
LT1490A/LT1491A
sn1490, 14901afbs
Total Supply Voltage (V
+
to V
–
) ............................. 44V
Differential Input Voltage ........................................ 44V
Input Current (Note 9) ....................................... ±12mA
Output Short-Circuit Duration (Note 2) ........ Continuous
Operating Temperature Range (Note 3)
LT1490AC/LT1491AC ......................... – 40°C to 85°C
LT1490AI/LT1491AI ........................... – 40°C to 85°C
LT1490AH/LT1491AH ...................... –40°C to 125°C
*Temperature grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
LT1490ACS8
LT1490AIS8
LT1490AHS8
LT1490ACN8
LT1490AIN8
T
JMAX
= 150°C, θ
JA
= 250°C/ W
S8/N8
PART MARKING
MS8
PART MARKING
ORDER PART
NUMBER
LTNG
LTPU
LTRK
1490A
1490AI
1490AH
LT1490ACMS8
LT1490AIMS8
LT1490AHMS8
Specified Temperature Range (Note 4)
LT1490AC/LT1490AI .......................... – 40°C to 85°C
LT1491AC/LT1491AI .......................... – 40°C to 85°C
LT1490AH/LT1491AH ...................... –40°C to 125°C
Junction Temperature.......................................... 150°C
Junction Temperature (DD/DHC Package) ........... 125°C
Storage Temperature Range ................ – 65°C to 150°C
Storage Temperature Range
DD/DHC Package ............................. – 65°C to 125°C
Lead Temperature (Soldering, 10 sec)................. 300°C
T
JMAX
= 150°C, θ
JA
= 130°C/ W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
V
+
OUT B
–IN B
+IN B
A
B
OUT A
–IN A
+IN A
V
–
ORDER PART
NUMBER
1
2
3
4
OUT A
–IN A
+IN A
V
–
8
7
6
5
V
+
OUT B
–IN B
+IN B
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
A
B
(Note 1)
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
N PACKAGE
14-LEAD PDIP
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V
–
+IN C
–IN C
OUT C
A
D
B
C
T
JMAX
= 150°C, θ
JA
= 110°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/ W (S)
LT1491ACS
LT1491AIS
LT1491AHS
LT1491ACN
LT1491AIN
ORDER PART
NUMBER
T
JMAX
= 125°C, θ
JA
= 160°C/ W (NOTE 2)
UNDERSIDE METAL CONNECTED TO V
–
TOP VIEW
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
5
6
7
8
4
3
2
1OUT A
–IN A
+IN A
V
–
V
+
OUT B
–IN B
+IN B
A
B
ORDER PART
NUMBER
LT1490ACDD
LT1490AIDD
DD
PART MARKING*
LAAH
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
NC
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
NC
TOP VIEW
DHC16 PACKAGE
16-LEAD (5mm × 3mm) PLASTIC DFN
A
D
B
C
T
JMAX
= 125°C, θ
JA
= 160°C/ W (NOTE 2)
UNDERSIDE METAL CONNECTED TO V
–
ORDER PART
NUMBER
LT1491ACDHC
LT1491AIDHC
DHC
PART MARKING*
1491A