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LT8228 Datasheet(PDF) 13 Page - Analog Devices

Part # LT8228
Description  Bidirectional Synchronous 100V Buck/Boost Controller with Reverse Supply, Reverse Current and Fault Protection
PDF  69 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8228 Datasheet(HTML) 13 Page - Analog Devices

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LT8228
13
Rev. A
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Auto DRXN: Boost to Buck
Transition (Input Undervoltage)
Auto DRXN: Boost to Buck
Transition (Output Overvoltage)
TA = 25°C, unless otherwise noted.
BOOST EFFICIENCY AND OPERATION
Shutdown Current vs Temperature
(V1 = 48V, V2 = 14V, BIAS = 14V)
Shutdown Current vs Input
Voltage (Input = V1, V2, BIAS)
DRVCC Current Limit vs BIAS
(Temperature = –40°C, 25°C, 150°C)
ENABLE, SUPPLY CURRENT AND VCC
200µs/DIV
8228 G35
IL
25A/DIV
V2
5V/DIV
DRXN
3V/DIV
2ms/DIV
8228 G36
IL
25A/DIV
FAULT
2V/DIV
DRXN
3V/DIV
V1
10V/DIV
IQV1
IQV2
IQBIAS
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
0
8
16
24
32
40
8228 G37
IQV1
IQV2
IQBIAS
INPUT VOLTAGE (V)
0
20
40
60
80
100
0
2
4
6
8
10
8228 G38
–40
25
125
150
BIAS (V)
0 10 20 30 40 50 60 70 80 90 100
0
20
40
60
80
100
120
140
160
180
200
8228 G39



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