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LTC4214-1 Datasheet(数据表) 2 Page - Linear Technology

部件型号  LTC4214-1
说明  Negative Low Voltage Hot Swap Controllers
下载  32 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
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LTC4214-1 Datasheet(HTML) 2 Page - Linear Technology

 
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 2 page
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LTC4214-1/LTC4214-2
2
421412f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Supply Voltage
q
616
V
IIN
VIN Supply Current
UV = OV = 2.5V
q
0.8
2
mA
VLKO
VIN Undervoltage Lockout
Coming Out of UVLO (Rising VIN)
q
5.1
5.6
V
VLKH
VIN Undervoltage Lockout Hysteresis
0.3
V
VCB
Circuit Breaker Current Limit Voltage
VCB = (VSENSE – VEE)
q
44
50
56
mV
VACL
Analog Current Limit Voltage
VACL = (VSENSE – VEE), SS = Open
q
60
70
80
mV
VFCL
Fast Current Limit Voltage
VFCL = (VSENSE – VEE)
q
150
200
300
mV
VSS
SS Voltage
After End of SS Timing Cycle
1.6
V
RSS
SS Output Impedance
73
k
ISS
SS Pin Current
UV = OV = 2.5V, VSENSE = VEE, VSS = 0V (Sourcing)
–22
µA
UV = OV = 0V, VSENSE = VEE, VSS = 1V (Sinking)
14
mA
VOS
Analog Current Limit Offset Voltage
10
mV
VACL+VOS Ratio (VACL + VOS) to SS Voltage
0.05
V/V
VSS
IGATE
GATE Pin Output Current
VSENSE = VEE, VGATE = 0V (Sourcing)
q
–30
–50
–70
µA
VSENSE – VEE = 0.15V, VGATE = 3V (Sinking)
17
mA
VSENSE – VEE = 0.3V, VGATE = 1V (Sinking)
190
mA
VGATE
External MOSFET Gate Drive
VGATE – VEE
q
10
11
12
V
VGATEH
Gate High Threshold
VGATEH = VIN – VGATE for PWRGD Status
2.8
V
VGATEL
Gate Low Threshold
(Before Gate Ramp-Up)
0.5
V
VUVHI
UV Pin Threshold
UV Rising
q
2.137
2.25
2.363
V
VUVHST
UV Pin Hysteresis
q
0.22
0.25
0.28
V
VOVHI
OV Pin Threshold
OV Rising
q
2.85
3
3.15
V
VOVHST
OV Pin Hysteresis
q
0.12
0.15
0.18
V
VIN ............................................................ – 0.3V to 17V
Input/Output Pins
(Except SENSE and DRAIN) Voltage ..........– 0.3V to 17V
SENSE Pin Voltage ................................... – 0.6V to 17V
Current Out of SENSE Pin (20
µs Pulse)........... –200mA
DRAIN Pin Minimum Voltage .............................. – 0.3V
Current into DRAIN Pin (100
µs Pulse) ................... 5mA
Maximum Junction Temperature .......................... 125
°C
Operating Temperature Range
LTC4214-1C/LTC4214-2C ....................... 0
°C to 70°C
LTC4214-1I/LTC4214-2I ................... – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ORDER PART
NUMBER
MS PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTABH
LTABK
LTABJ
LTABL
LTC4214-1CMS
LTC4214-2CMS
LTC4214-1IMS
LTC4214-2IMS
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
All Voltages Referred to VEE (Note 1)
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, UV = OV = 2.5V unless otherwise noted. (Note 2)
TJMAX = 125°C, θJA = 160°C/W
1
2
3
4
5
VIN
PWRGD
SS
SENSE
VEE
10
9
8
7
6
TIMER
UV
OV
DRAIN
GATE
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP




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