參數(shù)資料
型號： LTC4227IUFD-2#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： POWER SUPPLY MANAGEMENT CKT, PQCC20
封裝： 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-20
文件頁數(shù)： 15/20頁
文件大?。?/td> 307K
代理商： LTC4227IUFD-2#PBF
LTC4227-1/LTC4227-2
4
422712f
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input/Output Pin
ISENSE+
SENSE+ Input Current
SENSE+ = 12V
l
1.2
2.2
mA
ISENSE–
SENSE– Input Current
SENSE– = 12V
l
10
50
100
A
VSENSE+(UVL)
SENSE+ Undervoltage Lockout
SENSE+ Rising
l
1.75
1.9
2.05
V
VSENSE+(HYST) SENSE+ Undervoltage Lockout
Hysteresis
l
10
50
90
mV
VON(TH)
ON Pin Threshold Voltage
ON Rising
l
1.21
1.235
1.26
V
VON(HYST)
ON Pin Hysteresis
l
40
80
140
mV
VON(RESET)
ON Pin Fault Reset Threshold Voltage
ON Falling
l
0.55
0.6
0.65
V
VD2ON(TH)
D2ON Pin Threshold Voltage
D2ON Rising
l
1.21
1.235
1.26
V
VD2ON(HYST)
D2ON Pin Hysteresis
l
40
80
140
mV
IIN(LEAK)
Input Leakage Current (ON, D2ON)
ON = D2ON = 5V
l
0
±1
A
VEN(TH)
EN Pin Threshold Voltage
EN Rising
l
1.185
1.235
1.284
V
VEN(HYST)
EN Pin Hysteresis
l
40
110
200
mV
IEN(UP)
EN Pull-Up Current
EN = 1V
l
–7
–10
–13
A
VTMR(TH)
TMR Pin Threshold Voltage
TMR Rising
TMR Falling
l
1.198
0.15
1.235
0.2
1.272
0.25
V
ITMR(UP)
TMR Pull-Up Current
TMR = 1V, In Fault Mode
l
–75
–100
–125
A
ITMR(DN)
TMR Pull-Down Current
TMR = 2V, No Faults
l
1.4
2
2.6
A
ITMR(RATIO)
TMR Current Ratio ITMR(DN)/ITMR(UP)
l
1.4
2
2.7
%
IOUT
OUT Pin Current
OUT = 11V, IN = 12V, ON = 2V
OUT = 13V, IN = 12V, ON = 2V
l
50
1.9
100
4
A
mA
VOL
Output Low Voltage (FAULT, PWRGD)
I = 1mA
l
0.15
0.4
V
VOH
Output High Voltage (FAULT, PWRGD)
I = –1A
l
INTVCC – 1 INTVCC – 0.5
V
IOH
Input Leakage Current (FAULT, PWRGD) V = 18V
l
0
±1
A
IPU
Output Pull-Up Current (FAULT, PWRGD) V = 1.5V
l
–7
–10
–13
A
tRST(ON)
ON Low to FAULT High
l
20
40
s
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 currents into device pins are positive; all currents out of
the device pins are negative. All voltages are referenced to GND unless
otherwise specified.
Note 3: An internal clamp limits the DGATE and CPO pins to a minimum of
10V above and a diode below IN. Driving these pins to voltages beyond the
clamp may damage the device.
Note 4: An internal clamp limits the HGATE pin to a minimum of 10V
above and a diode below OUT. Driving this pin to voltages beyond the
clamp may damage the device.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LTC4228CGN-1#TRPBF 功能描述:IC HOT SWAP CTRLR 28SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
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