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DCM3714VD2K31E0M05 Datasheet(PDF) 7 Page - Vicor Corporation

Part # DCM3714VD2K31E0M05
Description  Isolated, Regulated DC Converter
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Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

DCM3714VD2K31E0M05 Datasheet(HTML) 7 Page - Vicor Corporation

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Signal Specifications
Specifications apply over all line, trim and load conditions, internal temperature TINT = 25ºC, unless otherwise noted. Boldface specifications apply over the
temperature range specified by the product grade. Please note: For chassis mount models, Vicor part number 42550 will be needed for applications
requiring the use of signal pins (Enable, Trim and Sense functions).[3]
Enable: EN
• The EN pin enables and disables the DCM converter; when held low the unit will be disabled.
• The EN pin is activated only if VDDE is preapplied before VIN is applied. Otherwise, EN is inactive and will be ignored until VIN is removed and reapplied.
Additonally, if VDDE is removed at any time, EN will return to inactive mode.
• The EN pin is referred to the –OUT of the converter and isolated from the primary side
SIGNAL TYPE
STATE
ATTRIBUTE
SYMBOL
CONDITIONS / NOTES
MIN
NOM
MAX
UNIT
DIGITAL
INPUT
Any
EN enable threshold
VENABLE-EN
2.31
V
EN disable threshold
VENABLE-DIS
Needs VDDE preapplied
0.99
V
Internally generated VCC
VCC
3.23
3.30
3.37
V
EN internal pull up
resistance to VCC
RENABLE-INT
0.990 1.000 1.010
k
Ω
Trim: TR
• The TR pin enables and disables trim functionality when VIN is initially applied to the DCM converter.
When Vin first crosses VIN-UVLO+, the voltage on TR determines whether or not trim is active.
• If TR is not floating at power up and has a voltage less than TR trim enable threshold, trim is active.
• If trim is active, the TR pin provides dynamic trim control with at least 250 Hz of -3dB control bandwidth over the output voltage of the
DCM converter.
• The TR pin has an internal pull-up to VCC and is referenced to the –OUT pin of the converter.
•VTRIM-RANGE represents the trim pin functional limits only. Module performance is guaranteed within rated output voltage trim range VOUT-TRIMMING,
see electrical specification on page 5.
SIGNAL TYPE
STATE
ATTRIBUTE
SYMBOL
CONDITIONS / NOTES
MIN
NOM
MAX
UNIT
DIGITAL
INPUT
Startup
TR trim disable threshold
VTRIM-DIS
Trim disabled when TR above this threshold
at power up
3.20
V
TR trim enable threshold
VTRIM-EN
Trim enabled when TR below this threshold
at power up
3.10
V
ANALOG
INPUT
Operational
with Trim
enabled
Internally generated VCC
VCC
3.23
3.30
3.37
V
TR pin functional range
VTRIM-RANGE
Functional limits only
0.00
2.37
3.10
V
VOUT referred TR
pin resolution
VOUT-RES
With VCC = 3.3 V
20.51
mV
TR internal pull up
resistance to VCC
RTRIM-INT
0.999 1.000 1.001
k
Ω
VDDE
• VDDE powers the internal controller.
• VDDE needs to be preapplied before VIN in order to activate EN functionalities.
• If not preapplied, VDDE is derived from VOUT; however, in this case, the enable function is not activated (the unit is always enabled and can be disabled
only by removing VIN.)
• If VDDE is removed during operation, the unit will return in"always enabled" mode, ignoring the EN pin until VDDE is reapplied and VIN is cycled.
SIGNAL TYPE
STATE
ATTRIBUTE
SYMBOL
CONDITIONS / NOTES
MIN
NOM
MAX
UNIT
POWER
INPUT
Any
Power input for internal
controller
VDDE
4
5
10
V
VDDE current
consumption
IVDDE
35
50
mA
DCM3714xD2K31E0yzz
DCMin a VIA Package
Rev 1.4
vicorpower.com
Page 7 of 23
07/2017
800 927.9474
[3] Signal cable 42550 is rated for up to 5 insertions and extractions. To avoid unnecessary stress on the connector, the cable should be tied to the chassis.


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