LT1641IS8 Ver la hoja de datos (PDF) - Linear Technology
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LT1641IS8 Datasheet PDF : 12 Pages
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LT1641
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage (VCC) ...............................– 0.3V to 100V
Input Voltage (SENSE) .............................– 0.3V to 100V
Input Voltage (TIMER) ...............................– 0.3V to 44V
Input Voltage (FB, ON) ...............................– 0.3V to 60V
Output Voltage (PWRGD) ........................– 0.3V to 100V
Output Voltage (GATE) ............................– 0.3V to 100V
Operating Temperature Range
LT1641CS8 ............................................. 0°C to 70°C
LT1641IS8 .......................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
ON 1
FB 2
PWRGD 3
GND 4
8 VCC
7 SENSE
6 GATE
5 TIMER
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 90°C/W
Consult factory for Military grade parts.
ORDER PART
NUMBER
LT1641CS8
LT1641IS8
S8 PART
MARKING
1641
1641I
DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Vcc = 24V
SYMBOL
VCC
ICC
VLKO
VFBL
VFBL
VFBHST
IINFB
∆VFB
VSENSETRIP
IGATEUP
IGATEDN
∆VGATE
ITIMERUP
ITIMERON
VONH
VONL
VONHYST
IINON
VOL
IOH
PARAMETER
VCC Operating Range
VCC Supply Current
VCC Undervoltage Lockout
FB Pin High Voltage Threshold
FB Pin Low Voltage Threshold
FB Pin Hysteresis Voltage
FB Pin Input Current
FB Pin Threshold Line Regulation
SENSE Pin Trip Voltage (VCC – VSENSE)
GATE Pin Pull-Up Current
GATE Pin Pull-Down Current
External N-Channel Gate Drive
TIMER Pin Pull-Up Current
TIMER Pin Pull-Down Current
ON Pin High Threshold
ON Pin Low Threshold
ON Pin Hysteresis
ON Pin Input Current
PWRGD Output Low Voltage
PWRGD Pin Leakage Current
CONDITIONS
ON = 3V
FB Low to High Transition
FB High to Low Transition
VFB = GND
9V ≤ VCC ≤ 80V
VFB = 0V
VFB = 1V
Charge Pump On, VGATE = 7V
Any Fault Condition, VGATE = 2V
VGATE – VCC, VCC = 10.8V to 20V
VCC = 20V to 80V
ON Low to High Transition
ON High to Low Transition
VON = GND
IO = 2mA
IO = 5mA
VPWRGD = 80V
MIN
q9
q
q 7.5
q 1.280
q 1.221
q
q5
q 42
q –5
q 50
q 4.5
q 10
q – 40
q 1.5
q 1.280
q 1.221
q
q
q
TYP
2
8.3
1.313
1.233
80
12
47
– 10
70
– 80
3
1.313
1.233
80
MAX
80
5.5
8.8
1.345
1.245
–1
0.05
16
52
– 20
90
18
18
– 120
4.5
1.345
1.245
–1
0.4
0.8
10
UNITS
V
mA
V
V
V
mV
µA
mV/V
mV
mV
µA
mA
V
V
µA
µA
V
V
mV
µA
V
V
µA
2
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