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LTC4350IGN Scheda tecnica(PDF) 3 Page - Linear Technology

Il numero della parte LTC4350IGN
Spiegazioni elettronici  Hot Swappable Load Share Controller
PDF  18 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC4350IGN Scheda tecnica(HTML) 3 Page - Linear Technology

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LTC4350

4350fb
elecTrical characTerisTics
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
VUVTH
UV Pin Threshold
High Going Threshold
Low Going Threshold
l
l
1.215
1.205
1.244
1.220
1.258
1.237
V
V
VOVTH
OV Pin Threshold
High Going Threshold
Low Going Threshold
l
l
1.203
1.180
1.220
1.205
1.250
1.229
V
V
VTM
TIMER Pin Threshold
l
1.18
1.22
1.26
V
ITM
TIMER Pin Current
TIMER On, VTIMER = 0V
TIMER On, VTIMER = 0V, VOV > VOVTH
l
l
–1.75
–5.30
–2
–6
–2.3
–6.7
µA
µA
VG
GAIN Pin Voltage
RGAIN = 25k, (VR+ – VR–) = 100mV
l
2.3
2.5
2.7
V
VGO
GAIN Pin Offset
RGAIN = 25k, (VR+ – VR–) = 0mV
l
0
0.02
0.20
V
VSB(MIN)
SB Pin Minimum Voltage
2
8
mV
VSB(MAX)
SB Pin Maximum Voltage
VCC = 3.3V
VCC = 12V
l
l
2.4
5.6
2.7
7.8
2.9
10.5
V
V
ISB(MAX)
SB Pin Maximum Current
VSB = 0V
l
–8
–33
–41
mA
RSB
SB Pin Resistor Value
l
14
20
33
kΩ
VE/A2OFF
E/A2 Offset
VSB – VGAIN
l
8
25
50
mV
VRSET(MAX) RSET Pin Maximum Voltage
VCC = 3.3V, RSET = 100Ω
VCC = 12V, RSET = 100Ω
l
l
0.94
0.94
1
1
1.03
1.03
V
V
VRSET(MIN) RSET Pin Minimum Voltage
VCC = 5V, RSET = 1000Ω
VCC = 5V, RSET = 100Ω
l
l
0.001
0.001
0.5
0.5
V
V
IRSET(MAX) RSET Pin Maximum Current
RSET = 50Ω, VIOUT = 1.1V
l
18
20
21
mA
VRCTH
Reverse Current Threshold
VR+ – VR+
l
10
30
40
mV
∆VGATE
External N-Channel Gate Drive
VGATE – VCC
l
10.8
12
12.7
V
IGATE
GATE Pin Current
Gate On, VGATE = 0V
l
–8
–10
–12
µA
VSOL
STATUS Pin Output Low
IOUT = 3mA
l
0.1
0.3
1.2
V
Note 2: R+ and R– could be at 17V while VCC = 0V.
Note 3: An internal clamp limits the GATE pin to a minimum of 10.8V
above VCC. Driving this pin to voltages beyond the clamp may damage the
part.



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