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LT4220IGN 数据表(PDF) 3 Page - Linear Technology

部件名 LT4220IGN
功能描述  Dual Supply Hot Swap Controller
PDF  16 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT4220IGN 数据表(HTML) 3 Page - Linear Technology

  LT4220IGN Datasheet HTML 1Page - Linear Technology LT4220IGN Datasheet HTML 2Page - Linear Technology LT4220IGN Datasheet HTML 3Page - Linear Technology LT4220IGN Datasheet HTML 4Page - Linear Technology LT4220IGN Datasheet HTML 5Page - Linear Technology LT4220IGN Datasheet HTML 6Page - Linear Technology LT4220IGN Datasheet HTML 7Page - Linear Technology LT4220IGN Datasheet HTML 8Page - Linear Technology LT4220IGN Datasheet HTML 9Page - Linear Technology Next Button
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3
LT4220
4220f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IINFB+
FB+ Input Current
FB+ = 3V
q
0.09
±1
µA
IINFB–
FB– Input Current
FB– = –3V
q
0.08
±1
µA
∆VFB+H
FB+ PWRGD Threshold Line Regulation
VCC = 2.7V, VEE = –2.7V to VCC = 16.5V, VEE = –16.5V q
0.015
0.15
mV/V
∆VFB–H
FB– PWRGD Threshold Line Regulation
VCC = 2.7V, VEE = –2.7V to VCC = 16.5V, VEE = –16.5V q
0.05
0.5
mV/V
VSENSE+
SENSE+ Trip Voltage (VCC – VSENSE+)VFB+ = 0V, GATE
+ – 0.5V
q
615
22
mV
VFB+ = 1V, GATE+ – 0.5V
36
48
60
mV
VSENSE–
SENSE– Trip Voltage (VSENSEK – VSENSE–)VFB– = 0V, GATE– – 0.5V
q
–10
–15
–22
mV
VFB– = –1V, GATE– – 0.5V
–43
–52
–61
mV
IGATEUP+
GATE+ Pull-Up Current
Charge Pump On, VGATE+ = 7V
q
–9
–13
–17
µA
IGATEUP– GATE– Pull-Up Current
VGATE– = –3V
q
–6
–10
–14
µA
IGATEDN+
GATE+ Pull-Down Current
Any Fault Condition, VGATE+ = 1V
q
20
40
60
mA
IGATEDN– GATE– Pull-Down Current
Any Fault Condition, VGATE– = VEE + 4V
q
30
70
130
mA
∆VGATE+ External N-Channel GATE+ Drive
VGATE+ – VCC, VCC = 2.7V, VEE = –2.7V
q
3.5
4
6
V
VCC = 5V to 16.5V, VEE = –5V to –16.5V
5
6.5
8
V
∆VGATE– External N-Channel GATE– Drive
VGATE– – VEE, VCC = 2.7V, VEE = –2.7V
q
3.5
5.2
6
V
VCC = 5V to 16.5V, VEE = –5V to –16.5V
7.5
8.5
9
V
VTIMERH
TIMER High Threshold, Sets FAULT
q
1.22
1.24
1.26
V
VTIMERL
TIMER Low Threshold, Allows Restart
q
0.4
0.5
0.6
V
ITIMERUP
TIMER Pull-Up Current
TIMER = 0V
q
–40
–65
–85
µA
ITIMERDN
TIMER Pull-Down Current
TIMER = 1V
q
2
3.3
4.5
µA
ITIMER(R) TIMER Current Ratio
ITIMERDN/ITIMERUP
57
%
VOL
PWRGD Output Low Voltage
IO = 2mA
q
0.3
V
IO = 5mA
0.5
V
IOH
PWRGD Leakage Current
VPWRGD = 16.5V
q
0.1
2
µA
VFOL
FAULT Output Low Voltage
IO = 2mA
q
0.3
V
IO = 5mA
0.5
V
IFPH
FAULT Leakage Current
VFAULT = 16.5V
q
0.06
2
µA
VTRKTHR
TRACK Input Threshold
q
0.3
0.8
1.1
V
ITRK
TRACK Input Current
TRACK = 16.5V
q
0.05
2
µA
VTRKFB+
TRACK Mode FB+ Threshold
IGATE+ = 0µA, TRACK = VCC (Note 3)
q
40
70
mV
VTRKFB–
TRACK Mode FB– Threshold
IGATE– = 0µA, TRACK = VCC (Note 3)
q
40
80
mV
DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VEE = –5V, unless otherwise noted.



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