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參數(shù)資料
| 型號(hào)： | LTC4274CIUHF#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY MANAGEMENT CKT, PQCC38 |
| 封裝： | 7 X 5 MM, LEAD FREE, PLASTIC, MO-220WHKD, QFN-38 |
| 文件頁數(shù)： | 23/28頁 |
| 文件大?。?/td> | 313K |
| 代理商： | LTC4274CIUHF#PBF |
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LTC4274A/LTC4274C
4
4274acf
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Current Sense
VCUT
Overcurrent Sense Voltage
VSENSE – VEE, hpen = 01h, cut[5:0] ≥ 4 (Note 12)
cutrng = 0
cutrng = 1
l
9
4.5
9.38
4.69
9.75
4.88
mV/LSB
Overcurrent Sense in AUTO Pin Mode
Class 0, Class 3
Class 1
Class 2
Class 4
l
90
26
49
152
94
28
52
159
98
30
55
166
mV
VLIM
Active Current Limit in 802.3af
Compliant Mode
VSENSE – VEE, hpen = 01h, lim = 80h,
V= 55V (Note 12)
VEE < VOUT < AGND – 29V
AGND – VOUT = 0V
l
102
20
106
110
50
mV
VLIM
Active Current Limit in High Power Mode
hpen = 01h, lim = C0h, VEE = 55V
VOUT – VEE = 0V to 10V
VEE + 23V < VOUT < AGND – 29V
AGND – VOUT = 0V
l
204
100
20
212
106
221
113
50
mV
VLIM
Active Current Limit in AUTO Pin Mode
VOUT – VEE = 0V to 10V, VEE = 55V
Class 0 to Class 3
Class 4
l
102
204
106
212
110
221
mV
VMIN
DC Disconnect Sense Voltage
VSENSE – VEE, rdis = 0
VSENSE – VEE, rdis = 1
l
2.6
1.3
3.8
1.9
4.8
2.41
mV
VSC
Short-Circuit Sense
VSENSE – VEE – VLIM, rdis = 0
VSENSE – VEE – VLIM, rdis = 1
l
160
75
200
100
255
135
mV
Port Current ReadBack
Resolution
No Missing Codes, fast_iv = 0
14
Bits
LSB Weight
VSENSE – VEE
30.5
V/LSB
50Hz to 60Hz Noise Rejection
(Note 7)
30
dB
Port Voltage ReadBack
Resolution
No Missing Codes, fast_iv = 0
14
bits
LSB Weight
AGND – VOUT
5.835
mV/LSB
50Hz to 60Hz Noise Rejection
(Note 7)
30
dB
Digital Interface
VILD
Digital Input Low Voltage
(Note 6)
l
0.8
V
VIHD
Digital Input High Voltage
(Note 6)
l
2.2
V
Digital Output Low Voltage
ISDAOUT = 3mA, IINT = 3mA
ISDAOUT = 5mA, IINT = 5mA
l
0.4
0.7
V
Internal Pull-Up to VDD
ADn, SHDN, RESET, MSD
50
kΩ
Internal Pull-Down to DGND
AUTO, MID
50
kΩ
electricAl chArActeristics The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. AGND – VEE = 54V, AGND = DGND, and VDD – DGND = 3.3V
unless otherwise noted. (Notes 3, 4)
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| LTC4274CUHF#PBF | 功能描述:IC CONTROLLER POE 38-QFN 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) |
| LTC4274CUHF#TRPBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP |
| LTC4274IUHF#PBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:IC POE IEEE 802.3AT 38-QFN 制造商:Linear Technology 功能描述:IC POE CNTRL 38QFN 制造商:Linear Technology 功能描述:IC, POE, CNTRL, 38QFN 制造商:Linear Technology 功能描述:IC, POE CONTROLLER, 3.6V, QFN-38; Input Voltage:3.6V; Supply Current:1.1mA; Digital IC Case Style:QFN; No. of Pins:38; Frequency:1MHz; Operating Temperature Min:-40C; Operating Temperature Max:85C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes |
| LTC4274IUHF#PBF | 制造商:Linear Technology 功能描述:IC POE CONTROLLER 3.6V QFN-38 |
| LTC4274IUHF#TRPBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP |
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