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LTC4274
9
4274fd
TYPICAL PERFORMANCE CHARACTERISTICS
ADC Noise Histogram
Current Readback in Slow Mode
ADC Integral Nonlinearity
Current Readback in Slow Mode
ADC Noise Histogram Port
Voltage Readback in Fast Mode
ADC Integral Nonlinearity
Voltage Readback in Fast Mode
ADC Noise Histogram Port
Voltage Readback in Slow Mode
ADC Integral Nonlinearity
Voltage Readback in Slow Mode
INT and SDAOUT Pull-Down Voltage
vs Load Current
MOSFET Gate Drive With Fast
Pull-Down
ADC OUTPUT
0
300
250
200
150
100
50
6139
6141
4274 G17
6143    6145    6147
V
SENSE
  V
EE
 = 110.4mV
CURRENT SENSE RESISTOR INPUT VOLTAGE (mV)
0
0
0.5
400
4274 G18
0.5
1.0
100
200 250
500
1.0
300
50
150
450
350
ADC OUTPUT
260
0
600
500
400
300
200
100
262
261
263
4274 G19
264    265
AGND  V
OUT
 = 48.3V
PORT VOLTAGE (V)
0
0
0.5
50
4274 G20
0.5
1.0
20
30
60
1.0
40
10
ADC OUTPUT
8532
0
600
500
400
300
200
100
8534
8533
8535
4274 G21
8536
AGND  V
OUT
 = 48.3V
PORT VOLTAGE (V)
0
0
0.5
50
4274 G22
0.5
1.0
20
30
60
1.0
40
10
LOAD CURRENT (mA)
0
0
3
2.5
2
1.5
1
0.5
10
5
15
4274 G23
20   25   30   35   40
100約/DIV
GND
0mA
4274 G24
V
EE
V
EE
PORT
CURRENT
500mA/DIV
GATE
VOLTAGE
10V/DIV
PORT
VOLTAGE
20V/DIV
CURRENT LIMIT
50?FAULT REMOVED
50?/DIV>
FAULT
APPLIED
V
DD
 = 3.3V
V
EE
 = 54V
FAST PULL DOWN
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