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LTC4240 Fiches technique(PDF) 2 Page - Linear Technology

No de pièce LTC4240
Description  CompactPCI Hot Swap Controller with I2C Compatible Interface
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

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LTC4240
2
4240f
Supply Voltages
5VIN .................................................................... –0.3V to 12V
12VIN ................................................................. –0.3V to 14V
VEEIN ................................................................... 0.3V to –14V
Input Voltages
PRSNT1#, PRSNT2#, SCL, RESETIN,
OFF/ON .................................................. –0.3V to 12V
5VOUT, 5VSENSE, 3VIN,
3VSENSE, 3VOUT ............................ –0.3V to (5VIN + 0.3V)
ADDRIN, PRECHARGE ......................... –0.3V to 5VIN
Output Voltages
TIMER, FAULT, PWRGD, SDA, RESETOUT,
LED, DRIVE, GATE, 12VOUT ....................... –0.3V to 14V
VEEOUT ................................................................ –14V to 0.3V
BE ............................................. 0.3V to (5VIN + 0.3V)
Operating Temperature Range
LTC4240C ............................................... 0
°C to 70°C
LTC4240I .............................................–40
°C to 85°C
Storage Temperature Range .................... 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ORDER PART
NUMBER
TJMAX = 140°C, θJA = 135°C/W
LTC4240CGN
LTC4240IGN
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Notes 1, 2)
ELECTRICAL CHARACTERISTICS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PRSNT1#
PRSNT2#
12VIN
VEEIN
TIMER
5VOUT
FAULT
PWRGD
BE
GND
ADDRIN
SDA
SCL
RESETOUT
OFF/ON
RESETIN
12VOUT
VEEOUT
3VOUT
3VSENSE
3VIN
5VIN
5VSENSE
GATE
PRECHARGE
DRIVE
DGND
LED
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IDD
V12VIN Supply Current
OFF/ON = 0V
q
38
mA
VLKO
Undervoltage Lockout
12VIN
q
7.00
8.00
10.80
V
5VIN
q
4.10
4.3
4.45
V
3VIN
q
2.35
2.45
2.55
V
VEEIN
q
–9
–10.5
V
VFB
Foldback Current Limit Voltage
VFB = (V5VIN – V5VSENSE), V5VOUT = 0V, TIMER = 0V
q
15
25
35
mV
VFB = (V5VIN – V5VSENSE), V5VOUT = 3V, TIMER = 0V
q
55
70
85
mV
VFB = (V3VIN – V3VSENSE), V3VOUT = 0V, TIMER = 0V
q
15
25
35
mV
VFB = (V3VIN – V3VSENSE), V3VOUT = 2V, TIMER = 0V
q
55
65
80
mV
VCB
Circuit Breaker Trip Voltage
VTV = (V5VIN – V5VSENSE), V5VOUT = 5V, TIMER = Open
q
50
55
60
mV
VTV = (V5VIN – V5VSENSE), V5VOUT = 0V, TIMER = Open
q
611
16
mV
VTV = (V3VIN – V3VSENSE), V3VOUT = 3.3V, TIMER = Open
q
50
55
60
mV
VTV = (V3VIN – V3VSENSE), V3VOUT = 0V, TIMER = Open
q
611
16
mV
tOC
Overcurrent Fault Response Time
(V5VIN – V5VSENSE) = 100mV, TIMER = Open
q
25
35
55
µs
Overcurrent Fault Response Time
(V3VIN – V3VSENSE) = 100mV, TIMER = Open
q
25
35
55
µs
tSC
Short-Circuit Response Time
(V5VIN – V5VSENSE) = 200mV, TIMER = Open
q
25
35
55
µs
(V3VIN – V3VSENSE) = 200mV, TIMER = Open
q
25
35
55
µs
IGATE(UP)
GATE Pin Turn-On Current
OFF/ON = 0V, VGATE = 0V, TIMER = 0V
q
– 20
– 65
–100
µA
IGATE(DN)
GATE Pin Turn-Off Current
VGATE = 5V, (Note 3)
q
100
200
300
µA
IGATE(FAULT) GATE Pin Fault-Off Current
OFF/ON = 0V, VGATE = 2V, TIMER = Open, FAULT = 0V
q
2.5
6
8.5
mA
∆VGATE
External Gate Voltage
∆VGATE = (V12VIN – VGATE), IGATE = 1µA
q
600
1000
mV
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. 12VIN = 12V, VEEIN = –12V, V3VIN = 3.3V, V5VIN = 5V unless otherwise noted.


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