PRM48BF480T500A00 Datasheet, PDF (9/45 Pages) Vicor Corporation – PRM™ Regulator

PRM48B x 480 y 500A00
SIGNAL SPECIFICATIONS
Specifications apply over all line and load conditions, T_INT = 25 ºC and output voltage from 20V to 55V, unless otherwise noted.
Boldface specifications apply over the temperature range of -40 ºC < T_INT < 125 ºC (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 5.0V with 1.8mA source capability during normal operation
Signal Type
State
Attribute
Symbol
Conditions / Notes
Analog Output
Digital Input / Output
Digital Output
Regular
Operation
Start up
Start up
Standby
Fault
ENABLE voltage
ENABLE available
current
ENABLE source current
Minimum time to start
ENABLE enable
threshold
ENABLE disable
threshold
ENABLE resistance
(external)
ENABLE sink current to
SGND
V_ENABLE
I_{ENABLE_OP}
I_{ENABLE_EN}
t_OFF
V_{ENABLE_EN}
V_{ENABLE_DIS}
R_{ENABLE_EXT}
I_{ENABLE_FAULT}
After t_OFF
Resistance to SGND required to disable the PRM
ENABLE voltage 1 V or above
Min
Typ
Max
Unit
4.7
5.0
5.3
V
1.8
mA
90
A
13.5
15
16.5
ms
2.5
3.2
V
0.97
2.4
V
235
Ω
4
mA
VAUX: AUXILARY VOLTAGE SOURCE
• Intended to power auxiliary circuits
• 9.0V during normal operation with 5mA source capability
Signal Type
Analog Output
State
Regular
Operation
Transition
Attribute
VAUX Voltage
VAUX Available Current
VAUX Voltage Ripple
VAUX Capacitance
(External)
VAUX Fault Response
Time
Symbol
V_VAUX
I_VAUX
V_{VAUX_PP}
C_{VAUX_EXT}
t_{FR_VAUX}
Conditions / Notes
Iout = 0A, C_{VAUX_EXT} = 0. Maximum specification includes
powertrain operation in burst mode.
From fault recognition to VAUX = 1.5 V
Min
Typ
Max
Unit
8.6
9.0
9.5
V
5
mA
100
400
mV
0.04
F
30
s
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
Analog Output
State
Start up
Attribute
VC Voltage
VC Available Current
VC duration
VC Slew Rate
ENABLE to VC delay
Symbol
V_{VC_START}
I_{VC_START}
t_VC
dVC/dt
t_{ENABLE_VC}
Conditions / Notes
Connected to VTM VC or equivalent, I_VC = 115mA,
C_VC = 3.2uF
V_C =14 V, V_IN > 20 V
Connected to VTM or equivalent, I_VC = 115mA, C_VC = 3.2uF
Min
Typ
Max
Unit
13
14
18
V
200
mA
7
10
16
ms
.02
.25
V/s
20
s
-9-
Rev. 1.0
11/2012