Datasheet

2
LT1620/LT1621
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Power Supply Voltage: V
CC
..........................–0.3V to 7V
Programming Voltage:
PROG, PROG2 ............ –0.3V to V
CC
+ 0.3V (7V Max)
I
OUT
, SENSE, AVG, AVG2,
MODE Voltage ................ – 0.3V to V
CC
+ 0.3V (7V Max)
(Referenced to Ground) (Note 1)
Sense Amplifier Input Common Mode .......–0.3V to 36V
Operating Ambient Temperature Range
Commercial ............................................ 0°C to 70°C
Industrial ............................................ –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
WU
U
PACKAGE
/
O
RDER I FOR ATIO
ORDER PART NUMBER ORDER PART NUMBER
θ
JA
= 149°C/W
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SENSE
NC
I
OUT

NC
GND
MODE
NC
IN
–


AVG
NC
PROG
PROG2
AVG2
V
CC

NC
IN
+
θ
JA
= 149°C/W
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PROG A
AVG A
SENSE A
I
OUT A

GND B
IN
–
B
IN
+
B
V
CC B
V
CC A

IN
+
A
IN
–
A
GND A
I
OUT B

SENSE B
AVG B
PROG B
LT1620CGN
LT1620IGN
LT1621CGN
LT1621IGN
1
2
3
4
8
7
6
5
TOP VIEW
AVG
PROG
V
CC

IN
+
SENSE
I
OUT

GND
IN
–
MS8 PACKAGE
8-LEAD PLASTIC MSOP
S8 PACKAGE
8-LEAD PLASTIC SO
ORDER PART NUMBER
MS8 PART MARKING
BC
Consult factory for Military grade parts.
V
IN
+
= 16.8V, V
CC
= 5V, V
IOUT
= 2V, T
A
= 25°C unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply
V
CC
5V Supply Voltage ● 4.5 5.0 5.5 V
I
CC
DC Active Supply Current SENSE = AVG = PROG = PROG2 = V
CC
2.8 3.8 mA
LT1620GN 4.5V ≤ V
CC
≤ 5.5V, IN
+
– IN
–
= 100mV ● 4.0 mA
DC Active Supply Current SENSE = AVG = PROG = V
CC
2.3 3.3 mA
LT1620S8, LT1620MS8, 1/2 LT1621GN 4.5V ≤ V
CC
≤ 5.5V, IN
+
– IN
–
= 100mV ● 3.7 mA
DC Active Supply Current SENSE = AVG = PROG = V
CC
1.3 1.9 mA
LT1620S8, LT1620MS8, 1/2 LT1621GN 4.5V ≤ V
CC
≤ 5.5V, IN
+
– IN
–
= 0mV ● 2.1 mA
Current Sense Amplifier
V
CM
Input Common Mode Range ● 032V
V
ID
Differential Input Voltage Range 0V ≤ V
CM
≤ 32V ● 0 125 mV
(IN
+
– IN
–
)
V
OSSENSE
Input Offset - Measured at ×1 Output V
CC
≤ V
CM
≤ 32V –5 5 mV
(V
SENSE
)V
ID
= 80mV ● –6 6 mV
E
LECTR
IC
AL C CHARA TERIST
ICS
LT1620CS8
LT1620IS8
LT1620CMS8
θ
JA
= 250°C/W (MS)
θ
JA
= 120°C/W (S)