參數(shù)資料
型號(hào): LTC4240IGN
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: CompactPCI Hot Swap Controller with I2C Compatible Interface
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28
封裝: 0.150 INCH, PLASTIC, SSOP28
文件頁(yè)數(shù): 3/28頁(yè)
文件大?。?/td> 486K
代理商: LTC4240IGN
LTC4240
3
4240f
The
G
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. 12V
IN
= 12V, V
EEIN
= –12V, V
3VIN
= 3.3V, V
5VIN
= 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
V
12V
12V Switch Voltage Drop
V
12V
= (V
12VIN
– V
12VOUT
), I = 500mA
V
VEE
V
EE
Switch Voltage Drop
V
VEE
= (V
EEOUT
– V
EEIN
), I = 100mA
I
CL
Current Foldback
12V
IN
= 12V, 12V
OUT
= 0V
V
EEIN
= –12V, V
EEOUT
= 0V
I
TH
Current Fault Threshold
12V
IN
= 12V
V
EEIN
= –12V
T
TS
Thermal Shutdown Temperature
Note 4
V
TH
Power Good Threshold Voltage
12V
OUT
5V
OUT
3V
OUT
V
EEOUT
V
IL
Input Low Voltage
OFF/ON, RESETIN, SCL, SDA, PRSNT1#, PRSNT2#
V
IH
Input High Voltage
OFF/ON, RESETIN, SCL, SDA, PRSNT1#, PRSNT2#
I
IN
Input Current PRSNT1#, PRSNT2#,
OFF/ON = RESETIN = SDA = SCL = 0V, 5V,
OFF/ON, RESETIN, SDA, SCL
PRSNT1#, PRSNT2# = 0V, 5V
RESETOUT, FAULT Leakage Current
RESETOUT = FAULT = 12V, OFF/ON = 0V, RESETIN = 3.3V
PWRGD Leakage Current
PWRGD = 12V, OFF/ON = 4V
5V
SENSE
Input Current
5V
SENSE
= 5V, 5V
OUT
= 0V, GATE = 0V
3V
SENSE
Input Current
3V
SENSE
= 3.3V, 3V
OUT
= 0V, GATE = 0V
5V
IN
Input Current
5V
IN
= 5V, TIMER = 0V, OFF/ON = 0V
3V
IN
Input Current
3V
IN
= 3.3V, TIMER = Open
3V
IN
= 3.3V, TIMER = 0V
5V
OUT
Input Current
5V
OUT
= 5V, OFF/ON = 0V, TIMER = 0V, GATE = 0V
3V
OUT
Input Current
3V
OUT
= 3.3V, OFF/ON = 0V, TIMER = 0V, GATE = 0V
V
EEIN
Input Current
TIMER = 0V, OFF/ON = 0V
Precharge Input Current
V
PRECHARGE
= 1V
ADDRIN
ADDRIN = 0V, 5V
I
TIMER
TIMER Pin Current
OFF/ON = 0V, TIMER = 0V
TIMER = 5V, OFF/ON = 2V
V
TIMER
TIMER Threshold Voltages
R
DIS
12V
OUT
Discharge Impedance
5V
OUT
Discharge Impedance
3V
OUT
Discharge Impedance
V
EEOUT
Discharge Impedance
V
OH
CMOS Output High Voltage
BE, I = –100
μ
A
V
OL
CMOS Output Low Voltage
BE, I = 100
μ
A
Output Low Voltage
PWRGD, RESETOUT, FAULT, SDA(I = 3mA)
Output Low Voltage
LED (I = 10mA)
V
PXG
PRECHARGE Reference Voltage
V
5VIN
= 5V
I
2
C Timing (Note 4)
f
SCL
SCL Clock Frequency
t
SUSTA
Start Condition Setup Time
t
BUF
Bus Free Time Between Stop and Start
t
HDSTA
Start Condition Hold Time
ELECTRICAL CHARACTERISTICS
5V
IN
– 0.4
MIN
TYP
300
125
–350
250
–1250 –1900
500
150
11.1
4.65
2.9
–10.5
MAX
600
250
–800
350
UNITS
mV
mV
mA
mA
mA
mA
G
G
G
G
–50
50
–550
225
G
G
800
°
C
V
V
V
V
V
V
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
mA
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
mA
G
G
G
G
10.8
4.50
2.8
–10
11.4
4.75
3.0
–10.8
0.8
G
G
2
G
G
±
0.08
±
0.08
±
0.08
±
0.08
55
55
0.8
250
250
237
120
–950
±
2
±
2
±
2
±
2
100
100
1.5
600
500
400
200
–1200
10
±
0.1
–17
55
6.5
1000
100
300
1000
G
G
G
G
G
G
G
G
G
G
G
G
G
G
–6
15
5
–11.5
28
5.5
430
50
150
650
G
V
V
V
V
V
V
G
G
G
G
G
G
G
G
0.4
0.4
0.8
1.1
G
0.9
1
100
kHz
μ
s
μ
s
μ
s
4.7
4.7
4
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