PRM48DH480T250A03 Datasheet, PDF (5/23 Pages) Vicor Corporation – Building block for high efficiency DC-DC systems

PRM48DH480T250A03
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
93.3kW
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
2130W
VIF_OC
PRM^® Regulator  
 
Rev 1.4  
 
vicorpower.com  
Page 5 of 23  
 
 
12/2012    
 
800 735.6200