PRM48BX480Y600A00 Datasheet, PDF (3/22 Pages) Vicor Corporation – High Efficiency Remote Sense PRM Converter

PRM48Bx480y600A00
3.0 SIGNAL CHARACTERISTICS
Specifications apply over all line and load conditions, T_J = 25 ºC and Output Voltage from 20V to 55V, unless otherwise
noted. Boldface specifications apply over the temperature range of -40 ºC < T_J < 125 ºC (T-grade).
Voltage Source
VS
• Intended to power feedback components and/or auxiliary circuits.
• 9 V, 5mA regulated voltage source
• With > 5% output load, VS ripple typically 100mV
Signal Type
State
Attribute
VS Voltage
Regular VS Available Current
Analog Output
Operation
VS Voltage Ripple
Transition
VS Capacitance (External)
VS Fault Response Time
Symbol
V_VS
I_VS
V_{VS_PP}
C_{VS_EXT}
T_{FR_VS}
Conditions / Notes
Iout = 0A, Cvs_ext=0. Maximum specification
includes powertrain operation in burst mode.
From fault recognition to VS = 1.5 V
Min
Typ
Max
Unit
8.55
9.00
9.45
V
5
mA
100
400
mV
0.04
F
30
s
Reference Enable
RE
• RE signals succesfull startup and powertrain ready to operate
• Intended to power and enable the feedback circuit reference
• 3.3V, 8mA regulated voltage source
Signal Type
State
Attribute
RE Voltage
Analog Output
Regular
Operation
RE Available Current
RE Regulation
RE Voltage Ripple
PC to RE Delay
Transition RE Capacitance (External)
VS to RE Delay
Symbol
V_RE
I_RE
%_RE
V_{RE_PP}
T_{PC_RE}
C_{RE_EXT}
T_{VS_RE}
Conditions / Notes
across load and temperature
in burst mode
Fault detected
VS = 8.1 V to RE high, V_IN > V_{IN_UVLO-}
Min
Typ
Max
Unit
3.0
3.3
3.6
V
8.0
mA
2.5
%
100
mV
100
s
0.1
F
1
ms
Control Node
PR
• Modulator control node input
• 0.5mA constant current sink when externally driven
• 0.79V, up to 2mA voltage source when externally pulled low
Signal Type
State
Attribute
PR Voltage Active Range
Analog Input
Regular
Operation
PR Source Current
PR Sink Current
PR Resistance to SG
Symbol
V_PR
I_PR
I_{PR_Low}
R_PR
V_PR  0.79V
V_PR  0.79V
Conditions / Notes
Min
Typ
Max
Unit
0.79
7.40
V
2
mA
250
500
750
A
93.3
kΩ
Current Feedback
IF
• A voltage proportional to the PRM output current must be supplied externally to the IF pin in order for the device to properly protect overcurrent events and to enable output current limit (clamp)
• Overcurrent protection trip will cause instantaneous powertrain disable, latched after T_BLNK
Signal Type
State
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Analog Input
Regular
Operation
Current Limit (clamp) Threshold
Overcurrent Protection Threshold
IF Input Impedance
Current Limit Bandwidth
V_{IF_IL}
V_{IF_OC}
R_IF
BW_IL
V_IN = 45 V; T_J = 25 °C
Not Production Tested; Guaranted by Design;
T_J = 25 °C
1.90
2.00
2.10
V
2.58
2.69
2.80
2.11
2.13
2.15
kΩ
2
kHz
PRM® Regulator
Page 3 of 22
Rev 1.2
07/2015
vicorpower.com
800 927.9474