參數(shù)資料
型號: LTC4242CUHF#TRPBF
廠商: Linear Technology
文件頁數(shù): 4/24頁
文件大?。?/td> 350K
描述: IC CNTRLR HOT SWAP 38-QFN
標(biāo)準(zhǔn)包裝: 2,500
類型: 熱交換控制器
應(yīng)用: 通用型,PCI Express?
內(nèi)部開關(guān):
電源電壓: 2.7 V ~ 6 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 38-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 38-QFN(5x7)
包裝: 帶卷 (TR)
LTC4242
4
4242f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
ON(TH)
ONn, AUXONn Pin Threshold Voltage
Rising Edge
?SPAN class="pst LTC4242CUHF-TRPBF_2347206_4">   1.173
1.235
1.297
V
ON(TH)
ONn, AUXONn Pin Hysteresis
?/DIV>
30
70
120
mV
V
ON(RTH)
ONn, AUXONn Pin Reset Threshold Voltage
Falling Edge
?/DIV>
0.5
0.6
0.7
V
I
ON(IN)
ONn, AUXONn Pin Input Current
V
ONn
 = V
AUXONn
 = 1.2V
?/DIV>
?
礎(chǔ)
V
EN(TH)
ENn Pin Threshold Voltage
ENn Rising
?/DIV>
1.173
1.235
1.297
V
EN(HYST)
ENn Pin Hysteresis
?/DIV>
30
70
120
mV
I
EN(UP)
ENn Pull-Up Current
V
ENn
 = 1V
?/DIV>
5
9
13
礎(chǔ)
V
FON
FONn Pin Logic Threshold
?/DIV>
0.7
2.6
V
I
SENSE
SENSE Pin Input Current
  12V
SENSEn
  3V
SENSEn
V
12VSENSEn
 = 12V
V
3VSENSEn
 = 3.3V
?/DIV>
?/DIV>
40
40
100
100
礎(chǔ)
礎(chǔ)
I
OUT
OUT Pin Input Current
  12V
OUTn
  3V
OUTn
Gate Drive On
  V
12VOUTn
 = 12V
  V
3VOUTn
 = 3.3V
?/DIV>
?/DIV>
45
27
90
60
礎(chǔ)
礎(chǔ)
R
OUT(DIS)
OUT Pin Discharge Resistance
  12V
OUTn
  3V
OUTn
  AUXOUTn
Gate Drive Off
  V
12VOUTn
 = 6V
  V
3VOUTn
 = 2V
  V
AUXOUTn
 = 2V
?/DIV>
?/DIV>
?/DIV>
350
165
375
700
330
750
1400
660
1500
?/DIV>
?/DIV>
?/DIV>
Output Pins
V
OL
Output Low Voltage
  FAULTn, AUXFAULTn, PGOODn,
  AUXPGOODn (Note 5)
I
PIN
 = 3mA
?/DIV>
0.14
0.4
V
I
PU
Pull-Up Current
  FAULTn, AUXFAULTn, PGOODn,
  AUXPGOODn (Note 5)
V
PIN
 = 1.5V
?/DIV>
5
9
13
礎(chǔ)
Slew Rate
SR
AUXOUT
AUXOUTn Slew Rate
?/DIV>
1.25
1.7
V/ms
Delays
t
PLH(GATE)
Input High (ONn) to GATEs High Prop Delay
?/DIV>
7
14
t
PLH(UVL)
Input Supply Low (12V
INn
, 3V
INn
) to GATEs
Low Prop Delay
?/DIV>
18
36
t
PLH(PG)
Out Low (12V
OUTn
, 3V
OUTn
) to PGOOD High
Prop Delay
?/DIV>
20
40
t
PHL(SENSE)
Sense Voltage High to GATE Low
SENSE
 = 200mV, C
GATE
 = 10nF
?/DIV>
0.4
1
 
The ?/SPAN> denotes the speci cations which apply over the full operating
temperature range, otherwise speci cations are at T
A
 = 25癈. V
CC
 = V
AUXINn
 = V
3VINn
 = 3.3V, V
12VINn
 = 12V, unless otherwise noted.
(Note 2)
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.
Note 2: All current into device pins is positive, all current out of the device 
pins is negative. All voltages are referenced to GND unless otherwise
speci ed.
Note 3: An internal clamp limits the GATE pins to a minimum of 5V above 
V
OUT
. Driving this pin to voltages beyond the clamp may damage the
device.
Note 4: For the QFN package, the AUX FET on resistance is guaranteed by 
correlation to wafer level measurements.
Note 5: Available on QFN package only.
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