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LT1161CS Datasheet PDF : 12 Pages
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LT1161
ABSOLUTE MAXIMUM RATINGS
Supply Voltages (Pins 11, 20) ................... – 15V to 60V
Input Voltages (Pins 3, 5, 7, 9) ...... (GND – 0.3V) to 15V
Gate Voltages (Pins 12, 14, 16, 18) ........................ 75V
Sense Voltages (Pins 13, 15, 17, 19).................. V + ±5V
Current (Any Pin).................................................. 50mA
Operating Temperature Range
LT1161C ............................................... 0°C to 70°C
LT1161I ............................................ – 40°C to 85°C
Junction Temperature Range (Note 1)
LT1161C .............................................. 0°C to 125°C
LT1161I ......................................... – 40°C to 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
GND 1
TIMER1 2
INPUT 1 3
TIMER 2 4
INPUT 2 5
TIMER 3 6
INPUT 3 7
TIMER 4 8
INPUT 4 9
GND 10
TOP VIEW
20 V+
19 SENSE 1
18 GATE 1
17 SENSE 2
16 GATE 2
15 SENSE 3
14 GATE 3
13 SENSE 4
12 GATE 4
11 V+
ORDER PART
NUMBER
LT1161CN
LT1161CS
LT1161IN
LT1161IS
N PACKAGE
S PACKAGE
20-LEAD PLASTIC DIP 20-LEAD PLASTIC SOL
θJA = 70°C/ W (N)
θJA = 110°C/ W (S)
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS TA = 25°C, V+ = 12V to 48V each channel, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
IS
Supply Current
All Channels OFF (Note 2)
∆IS(ON)
Delta Supply Current (ON State) Measure Increase in IS per Channel
VINH
Input High Voltage
q
VINL
Input Low Voltage
q
IIN
Input Current
VIN = 2V
q
VIN = 5V
q
CIN
Input Capacitance
VT(TH)
Timer Threshold Voltage
VIN = 2V, Adjust VT
q
VT(CL)
Timer Clamp Voltage
VIN = 0.8V
IT
Timer Charge Current
VIN = VT = 2V
VSEN
Drain Sense Threshold Voltage
Temperature Coefficient
ISEN
Drain Sense Input Current
V + = 48V, VSEN = 65mV
VGATE – V + Gate Voltage Above Supply
V + = 8V
V + = 12V
q
V + = 24V
q
V + = 48V
q
tON
tOFF
tOFF(CL)
Turn-ON Time
Turn-OFF Time
Current Limit Turn-OFF Time
V + = 24V, VGATE > 32V, CGATE = 1000pF
V + = 24V, VGATE < 2V, CGATE = 1000pF
V + = 24V, (V + – VSENSE ) → 0.1V, CGATE = 1000pF
MIN TYP MAX
3
4.5
6.5
1
1.35
2
0.8
15
30
50
55
110 185
5
2.7
3
3.3
3.2
3.5
3.8
9
14
20
50
65
80
+0.33
0.5
1.5
4
4.5
6
7
8.5
10
10
12
14
10
12
14
100 220 400
75
200
25
50
UNITS
mA
mA
V
V
µA
µA
pF
V
V
µA
mV
%/°C
µA
V
V
V
V
µs
µs
µs
The q denotes specifications which apply over the full operating
temperature range.
Note 1: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formulas:
LT1161CN, LT1161IN: TJ = TA + (PD × 70°C/W)
LT1161CS, LT1161IS: TJ = TA + (PD × 110°C/W)
Note 2: Both V + pins (11, 20) must be connected together and both
ground pins (1, 10) must be connected together.
2
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