LT1620/LT1621
ABSOLUTE AXI U RATI GS (Referenced to Ground) (Note 1)
Power Supply Voltage: VCC ..........................– 0.3V to 7V
Programming Voltage:
PROG, PROG2 ............ – 0.3V to VCC + 0.3V (7V Max)
IOUT, SENSE, AVG, AVG2,
MODE Voltage ................ – 0.3V to VCC + 0.3V (7V Max)
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
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SENSE 1
IOUT 2
GND 3
IN– 4
8 AVG
7 PROG
6 VCC
5 IN+
MS8 PACKAGE
8-LEAD PLASTIC MSOP
S8 PACKAGE
8-LEAD PLASTIC SO
θJA = 250°C/W (MS)
θJA = 120°C/W (S)
ORDER PART NUMBER
LT1620CS8
LT1620IS8
LT1620CMS8
MS8 PART MARKING
BC
Consult factory for Military grade parts.
TOP VIEW
SENSE 1
NC 2
IOUT 3
NC 4
GND 5
MODE 6
NC 7
IN– 8
16 AVG
15 NC
14 PROG
13 PROG2
12 AVG2
11 VCC
10 NC
9 IN+
GN PACKAGE
16-LEAD PLASTIC SSOP
θJA = 149°C/ W
ORDER PART NUMBER
LT1620CGN
LT1620IGN
TOP VIEW
PROG A 1
AVG A 2
SENSE A 3
IOUT A 4
GND B 5
IN– B 6
IN+ B 7
VCC B 8
16 VCC A
15 IN+ A
14 IN– A
13 GND A
12 IOUT B
11 SENSE B
10 AVG B
9 PROG B
GN PACKAGE
16-LEAD PLASTIC SSOP
θJA = 149°C/ W
ORDER PART NUMBER
LT1621CGN
LT1621IGN
ELECTRICAL CHARACTERISTICS
VIN+ = 16.8V, VCC = 5V, VIOUT = 2V, TA = 25°C unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
Supply
VCC
5V Supply Voltage
ICC
DC Active Supply Current
LT1620GN
SENSE = AVG = PROG = PROG2 = VCC
4.5V ≤ VCC ≤ 5.5V, IN+ – IN– = 100mV
DC Active Supply Current
SENSE = AVG = PROG = VCC
LT1620S8, LT1620MS8, 1/2 LT1621GN 4.5V ≤ VCC ≤ 5.5V, IN+ – IN– = 100mV
DC Active Supply Current
SENSE = AVG = PROG = VCC
LT1620S8, LT1620MS8, 1/2 LT1621GN 4.5V ≤ VCC ≤ 5.5V, IN+ – IN– = 0mV
Current Sense Amplifier
VCM
Input Common Mode Range
VID
Differential Input Voltage Range
(IN+ – IN–)
0V ≤ VCM ≤ 32V
VOSSENSE Input Offset - Measured at ×1 Output
(VSENSE)
VCC ≤ VCM ≤ 32V
VID = 80mV
MIN
TYP
MAX
UNITS
q
4.5
5.0
5.5
V
2.8
3.8
mA
q
4.0
mA
2.3
3.3
mA
q
3.7
mA
1.3
1.9
mA
q
2.1
mA
q
0
q
0
–5
q
–6
32
V
125
mV
5
mV
6
mV
2