PRM48DH480B03 Datasheet, PDF (5/22 Pages) Vicor Corporation – DC to DC Regulator

PRM48DH480T250B03
4.0 FUNCTIONAL BLOCK DIAGRAM
+Vin
Vcc
PC PR Vout
Cin
Vcc
3.3V
Linear
3.3V
Q1
Internal
Vcc
Regulator
RE
uC 8051
Regulator
-Vin
16V
9V
+Vout
Q2
Output
8.2V
Discharge
PR
(OD)
PR
Modulator
93.3k
2.5mA Min
0.5mA
Var. Vclamp
Enable
Vcc
100uA
Q ^SET S
Q CLR R
TOFF
delay
R
3V
5V
2mA max
PC
PC
10uA
VPC_EN
TM
3 V @ 27°C
Temperature
dependent voltage
source
Enable
Fault Logic
Instant
latch
Latch after
120us
Vout
(OV)
Vin
(OV, UV)
Overtemperature
Protection
Vref
(130°C)
Current Limit
Overcurrent
Protection
Q3
L
Cout
Q4
+Vout
-Vout
VTM Vc Start up pulse
14V
VC
10ms
RE
RE
3.3V
Vs
9V
0.01uF
SG
VIF_IL
IF
2130
VIF_OC
PRM^® Regulator
Page 5 of 23
Rev 1.2
7/2015
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