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參數(shù)資料
| 型號： | LT1640LCS8#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大小： | 187K |
| 代理商： | LT1640LCS8#TRPBF |
2
LT1640L/LT1640H
1640lhfb
ABSOLUTE MAXIMUM RATINGS
W
WW
U
Supply Voltage (VDD – VEE) .................... – 0.3V to 100V
DRAIN, PWRGD, PWRGD Pins ............... – 0.3V to 100V
SENSE, GATE Pins .................................... – 0.3V to 20V
UV, OV Pins .............................................. – 0.3V to 60V
Maximum Junction Temperature ......................... 125
°C
Operating Temperature Range
LT1640LC/LT1640HC ............................. 0
°C to 70°C
LT1640LI/LT1640HI .......................... – 40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
(Note 1), All Voltages Referred to VEE
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC
VDD
Supply Operating Range
q
10
80
V
IDD
Supply Current
UV = 3V, OV = VEE, SENSE = VEE
q
1.3
5
mA
VCB
Circuit Breaker Trip Voltage
VCB = (VSENSE – VEE)
q
40
50
60
mV
IPU
GATE Pin Pull-Up Current
Gate Drive On, VGATE = VEE
q
–30
– 45
–60
A
IPD
GATE Pin Pull-Down Current
Any Fault Condition
24
50
70
mA
ISENSE
SENSE Pin Current
VSENSE = 50mV
– 20
A
VGATE
External Gate Drive
(VGATE – VEE), 15V ≤ VDD ≤ 80V
q
10
13.5
18
V
(VGATE – VEE), 10V ≤ VDD < 15V
q
68
15
V
VUVH
UV Pin High Threshold Voltage
UV Low to High Transition
q
1.213
1.243
1.272
V
VUVL
UV Pin Low Threshold Voltage
UV High to Low Transition
q
1.198
1.223
1.247
V
VUVHY
UV Pin Hysteresis
20
mV
IINUV
UV Pin Input Current
VUV = VEE
q
– 0.02
– 0.5
A
VOVH
OV Pin High Threshold Voltage
OV Low to High Transition
q
1.198
1.223
1.247
V
VOVL
OV Pin Low Threshold Voltage
OV High to Low Transition
q
1.165
1.203
1.232
V
VOVHY
OV Pin Hysteresis
20
mV
IINOV
OV Pin Input Current
VOV = VEE
q
– 0 .03
– 0.5
A
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2), VDD = 48V, VEE = 0V unless otherwise noted.
WU
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
S8 PART MARKING
LT1640LCN8
LT1640LCS8
LT1640LIN8
LT1640LIS8
1640L
1640LI
TJMAX = 125°C, θJA = 120°C/W (N8)
TJMAX = 125°C, θJA = 150°C/W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
VDD
DRAIN
GATE
SENSE
PWRGD
OV
UV
VEE
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
ORDER PART
NUMBER
S8 PART MARKING
LT1640HCN8
LT1640HCS8
LT1640HIN8
LT1640HIS8
1640H
1640HI
TJMAX = 125°C, θJA = 120°C/W (N8)
TJMAX = 125°C, θJA = 150°C/W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
VDD
DRAIN
GATE
SENSE
PWRGD
OV
UV
VEE
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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