802.3af ILIM Threshold vs T" />
參數(shù)資料
型號: LTC4266IGW#PBF
廠商: Linear Technology
文件頁數(shù): 29/30頁
文件大?。?/td> 0K
描述: IC CTRLR IEEE 802.3AT 36-SSOP
產(chǎn)品培訓(xùn)模塊: Power over Ethernet
標(biāo)準(zhǔn)包裝: 32
控制器類型: 以太網(wǎng)控制器(IEEE 802.3)
接口: I²C,2 線串口
電源電壓: 3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 36-BSOP(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 36-SSOP
包裝: 管件
產(chǎn)品目錄頁面: 1338 (CN2011-ZH PDF)
LTC4266
8
4266fd
TYPICAL PERFORMANCE CHARACTERISTICS
802.3af ILIM Threshold vs
Temperature
DC Disconnect Threshold vs
Temperature
Current Limit Foldback
ADC Noise Histogram
Current Readback in Fast Mode
ADC Integral Nonlinearity
Current Readback in Fast Mode
TEMPERATURE (°C)
–40
105.00
V
LIM
(mV)
ILIM
(mA)
106.50
105.75
107.25
108.00
420
423
426
429
432
040
4266 G10
80
120
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
REG 48h = 80h
PORT 1
802.3at ICUT Threshold vs
Temperature
802.3af ICUT Threshold vs
Temperature
TEMPERATURE (°C)
–40
158
V
CUT
(mV)
ICUT
(mA)
161
160
159
162
163
630
636
640
648
644
652
040
4266 G11
80
120
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
REG 47h = E2h
PORT 1
TEMPERATURE (°C)
–40
93.00
V
CUT
(mV)
ICUT
(mA)
94.50
93.75
95.25
96.00
372
375
378
381
384
040
4266 G12
80
120
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
REG 47h = D4h
PORT 1
TEMPERATURE (°C)
–40
V
MIN
(mV)
IMIN
(mV)
7.00
7.50
7.25
7.75
8.00
1.7500
1.8125
1.8750
1.9375
2.0000
040
4266 G13
80
120
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
REG 47h = E2h
PORT 1
VOUTn (V)
–54
0
I LIM
(mA)
V
LIM
(mV)
900
800
700
600
500
400
300
200
100
0
225
200
175
150
125
100
75
50
25
–36
–45
–27
4266 G14
–18
–9
0
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
REG 48h = C0h
ADC OUTPUT
191
0
B
IN
COUNT
400
350
300
250
200
150
100
50
193
192
194
4266 G15
195
196
VSENSEn – VEE = 110.4mV
CURRENT SENSE RESISTOR INPUT VOLTAGE (mV)
0
ADC
INTEGRAL
NONLINEARIT
Y
(LSBs)
0
0.5
400
4266 G16
–0.5
–1.0
100
200 250
500
1.0
300
50
150
450
350
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