LTC4266IUHF-PBF View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC4266IUHF-PBF Datasheet PDF : 30 Pages
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LTC4266
TYPICAL PERFORMANCE CHARACTERISTICS
802.3af ILIM Threshold vs
Temperature
108.00
432
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
107.25 REG 48h = 80h
429
PORT 1
106.50
426
105.75
423
105.00
–40
0
40
80
TEMPERATURE (°C)
420
120
4266 G10
802.3af ICUT Threshold vs
Temperature
96.00
384
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
95.25 REG 47h = D4h
381
PORT 1
94.50
378
802.3at ICUT Threshold vs
Temperature
163
652
VDD = 3.3V
VEE = –54V
162
RSENSE = 0.25Ω
REG 47h = E2h
648
PORT 1
161
644
160
640
159
636
158
–40
0
40
80
TEMPERATURE (°C)
630
120
4266 G11
DC Disconnect Threshold vs
Temperature
2.0000
8.00
VDD = 3.3V
VEE = –54V
RSENSE = 0.25Ω
1.9375 REG 47h = E2h
7.75
PORT 1
1.8750
7.50
93.75
375
1.8125
7.25
93.00
–40
0
40
80
TEMPERATURE (°C)
372
120
4266 G12
1.7500
–40
0
40
80
TEMPERATURE (°C)
7.00
120
4266 G13
Current Limit Foldback
900
VDD = 3.3V
225
800
VEE = –54V
200
RSENSE = 0.25Ω
700
REG 48h = C0h 175
600
150
500
125
400
100
300
75
200
50
100
25
0
–54 –45 –36 –27 –18
VOUTn (V)
0
–9 0
4266 G14
ADC Noise Histogram
Current Readback in Fast Mode
400 VSENSEn – VEE = 110.4mV
350
300
250
200
150
100
50
0
191 192 193 194 195 196
ADC OUTPUT
4266 G15
ADC Integral Nonlinearity
Current Readback in Fast Mode
1.0
0.5
0
–0.5
–1.0
0 50 100 150 200 250 300 350 400 450 500
CURRENT SENSE RESISTOR INPUT VOLTAGE (mV)
4266 G16
4266fb
8
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