Datasheet

2
LTC1443/LTC1444/LTC1445
144345fc
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 (LTC1443) ............. (V
+
+ 0.3V) to (GND – 0.3V)
OUT
(LTC1444/LTC1445) ...... (V
+
+ 0.3V) 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
Commercial ............................................ 0°C to 70°C
Industrial ............................................ –40°C to 85°C
Storage Temperature Range
PDIP, SO .......................................... –65°C to 150°C
DFN .................................................. –65°C to 125°C
Lead Temperature Range (Soldering, 10 sec)
PDIP, SO ......................................................... 300°C
ORDER PART
NUMBER
LTC1443CN
LTC1443CS
LTC1443IN
LTC1443IS
LTC1444CN
LTC1444CS
1
2
3
4
5
6
7
8
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
N PACKAGE
16-LEAD PDIP
16
15
14
13
12
11
10
9
OUT B
OUT A
V
+
IN A
–
IN A
+
IN B
–
IN B
+
REF
OUT C
OUT D
GND/HYST
†
IN D
+
IN D
–
IN C
+
IN C
–
V
–
(Note 1)
T
JMAX
= 150°C, θ
JA
= 90°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/ W (S)
†
PIN 14 IS GND FOR THE LTC1443
†
PIN 14 IS HYST FOR THE LTC1444 AND LTC1445
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
OUT C
OUT D
GND/HYST
†
IN D
+
IN D
–
IN C
+
IN C
–
V
–
OUT B
OUT A
V
+
IN A
–
IN A
+
IN B
–
IN B
+
REF
TOP VIEW
DHD16 PACKAGE
16-LEAD (5mm × 4mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 43°C/ W
EXPOSED PAD (PIN 17) INTERNALLY CONNECTED TO V
–
†
PIN 14 IS GND FOR THE LTC1443
†
PIN 14 IS HYST FOR THE LTC1444 AND LTC1445
DHD PART*
MARKING
ORDER PART
NUMBER
LTC1443CDHD
LTC1443IDHD
LTC1444CDHD
LTC1444IDHD
LTC1445CDHD
LTC1445IDHD
1443
1443
1444
1444
1445
1445
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
*The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTC1444IN
LTC1444IS
LTC1445CN
LTC1445CS
LTC1445IN
LTC1445IS