PRM48AY480X400A00 Datasheet, PDF (10/44 Pages) Vicor Corporation – High Efficiency Converter

PRM48Ay480x400A00
Signal Specifications
Specifications apply over all line and load conditions, T_INT = 25ºC and output voltage from 20.0 V to 55.0 V, unless otherwise noted.
Boldface specifications apply over the temperature range of -40ºC < T_INT < 125ºC (T-grade).
ENABLE
• The ENABLE pin enables and disables the PRM
• In PRM array configurations, ENABLE pins should be connected in order to synchronize start up
• ENABLE is 5 V with 1.8 mA source capability during normal operation
Signal Type
State
Attribute
Symbol
Conditions / Notes
Normal ENABLE Voltage
V_ENABLE
Analog Output
Operation
Start up
ENABLE Current
ENABLE Source Current
Minimum Time to Start
I_{ENABLE_OP}
I_{ENABLE_EN}
t_OFF
After t_OFF
ENABLE
Start up
Enable Threshold
V_{ENABLE_EN}
Digital Input / Output
Standby
ENABLE
Disable Threshold
ENABLE
Resistance (External)
V_{ENABLE_DIS}
Resistance to SGND required
R_{ENABLE_EXT}
to disable the PRM
Digital Output
Fault
ENABLE
I_{ENABLE_FAULT} ENABLE voltage 1 V or above
Sink Current to SGND
Min
Typ
4.7
5.0
90
13.0
15.0
2.5
0.97
2.40
Max
5.3
1.8
17.0
3.2
Unit
V
mA
µA
ms
V
V
235
Ω
4
mA
VAUX: Auxillary Voltage Source
• Intended to power auxiliary circuits
• 9 V during normal operation with 5 mA source capability
Signal Type
State
Attribute
Symbol
Conditions / Notes
Min
Typ
Max Unit
Analog Output
VAUX Voltage
V_VAUX
8.6
9.0
9.5
V
VAUX Current
Normal
Operation
VAUX Voltage Ripple
I_VAUX
V_{VAUX_PP}
I_OUT = 0A, C_{VAUX_EXT} = 0. Maximum
specification includes powertrain
5
mA
100
400
mV
operation in burst mode.
VAUX Capacitance
(External)
Transition
VAUX Fault Response
Time
C_{VAUX_EXT}
t_{FR_VAUX}
From fault recognition to
VAUX = 1.5 V
0.04
µF
30
µs
VC: VTM Control
• Pulsed voltage source used to power and synchronize downstream VTM during start up
• 14 V, 10 ms typical voltage pulse
Signal Type
State
Attribute
Symbol
Conditions / Notes
Min
Typ
Max Unit
VC Voltage
Connected to VTM VC or equivalent,
V_{VC_START}
13
14
18
V
I_VC = 115 mA, C_VC = 3.2 uF
Analog Output
VC Available Current
Start up
VC Duration
I_{VC_START}
t_VC
V_C = 14 V, V_IN > 20 V
200
7
10
mA
16
ms
VC Slew Rate
dVC/dt
Connected to VTM or equivalent,
I_VC = 115 mA, C_VC = 3.2 uF
0.02
0.25
V/µs
ENABLE to VC Delay t_ENABLE-VC
20
µs
PRM^TM Regulator
Page 10 of 44
Rev 1.4
11/2015
vicorpower.com
800 927.9474