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PI3749 Datasheet(PDF) 8 Page - Vicor Corporation

Part # PI3749
Description  16V to 34VIN, 12V to 28VOUT, 240W Cool-Power ZVS Buck-Boost
PDF  26 Pages
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Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

PI3749 Datasheet(HTML) 8 Page - Vicor Corporation

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Cool-Power® ZVS Switching Regulators
Rev 1.6
vicorpower.com
Page 8 of 26
09/2016
800 927.9474
PI3749-x0
Electrical Characteristics (Cont.)
Specifications apply for the conditions -40°C < TJ < 115°C, VIN = 16V - 34V, VOUT = 24V, LEXT = 480nH[4], external CIN = COUT = 20µF,
unless otherwise noted.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
General Purpose Amplifier
Open Loop Gain
[5]
96
120
140
dB
Small Signal Gain-Bandwidth
[5]
5
7
12
MHz
Offset
-1
0.2
1
mV
Common Mode Input Range
-0.1
2.5
V
Differential Mode Input Range
2
V
Maximum Output Voltage
IDIFF = -1mA
VDR - 0.2 V
V
Minimum Output Voltage
No Load
20
mV
Capacitive Load for Stable Oper-
ation
[5]
0
100
pF
Slew Rate
10
V/µs
Output Current
-1
1
mA
Transconductance Error Amplifier
Reference
VREF
EAIN = EAO
1.667
1.7
1.734
V
Input Range
VEAIN
Note VEAIN_OV below
0
VDR
V
Maximum Output Voltage
3.45
4.0
V
Minimum Output Voltage
0
0.1
V
Transconductance
Factory Set
7.6
mS
Zero Resistor
Factory Set
7.0
kΩ
EAO Output Current Sourcing
VEAO = 50mV, VEAIN = 0V
400
µA
EAO Output Current Sinking
VEAO = 2V, VEAIN = 5V
400
µA
Open Loop Gain
ROUT > 1MΩ [5]
70
80
dB
Control and Protection
Switching Frequency
FSW
VIN = VOUT = 24V IOUT = 2A
800
kHz
Switching Frequency
FSW
VIN = 16V, VOUT = 12V IOUT = 7A
480
kHz
VEAO Pulse Skip Threshold
VEAO_PST
VEAO to SGND
0.6
V
Control Node Range
VRAMP
0
3.3
V
VEAO Overload Threshold
VEAO_OL
VEAO to SGND
3.2
3.4
V
Overload Timeout
TOL
VEAO > VEAO_OL
1
msec
Vout Slow Current Limit
VOUT_SCL
10µs time constant
18
A
VEAIN Output Over Voltage Thresh-
old
VEAIN_OV
VEAIN > VEAIN_OV
2.04
V
Overtemperature Fault Threshold
TOTP
[5]
125
129
°C
Overtemperature Restart Hysteresis
TOPT_HYS
[5]
30
°C
Vout Negative Fault Threshold
-0.35
-0.25
-0.15
V



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