Crane Aerospace & Electronics Power Solutions
MHp270 single and dual dc/dc converters
270 Volt input – 65 Watt
Operating COnditiOns and CharaCteristiCs
input Voltage range
• 160 to 400 VDC continuous
• 450 VDC for 50 msec transient
synC and inhibit
sync
• Sync In
‣
Input frequency 475 to 575 kHz.
‣
Duty cycle 40% min, 60% max
‣
Active low 0.8 V max
‣
Active high 4.5 V min, 10 V max
‣
Referenced to input common
• Sync out
‣
Referenced to input common
output power
• 50 to 65 watts depending on model
lead soldering temperature (10 sec)
• 300°C
storage temperature range (case)
• -65°C to +150°C
current limit
• 125% of full load typical
output Voltage temperature coefficient
• 100 ppm/°C typical
case operating temperature (tc)
• -55 to +100°C full power
isolation
• 100 megohm minimum at 500 V
conversion Frequency
• Free run mode 525 kHz typical
‣
475 kHz. min., 575 kHz max
• External sync range: 475 to 575 kHz
low line drop out
• Vout drops 1% of nominal
• Input voltage 155 VDC max
inhibit (inH1, inH2)
• Active low (output disabled)
‣
INH1 referenced to input common
Active low 0.8 V max
Inhibit pin will source 15 mA max
‣
INH2 referenced to output common
Active low 0.5 V max
Inhibit pin will source 15 mA max
• Active high (output enabled)
‣
open collector
‣
open pin voltage: INH1 = 12V typ, INH2 = 5 V typ
meChaniCal and envirOnmental
size (maximum)
• 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm)
• See case U for dimensions.
Weight (maximum)
• 86 grams max
undervoltage lockout
• Input voltage 110 VDC min
screening
• Standard or ES. See “MHP270 (Standard and /ES, non-QML
Products” screening table for more information, page 10.
SINGLE oUTPUT MoDELS CoNNECTIoN DIAGRAM - SENSE
270 V
+
–
1
2
3
4
5
6
Positive Input
Input Common
INH2
INH1
Sync Out
Sync In
Share 12
N/C 11
Pos. Sense 10
9
Sense Return
8
Output Common
7
Positive Output
–
+
RL
Inhibit
Sync In
REMOTE SENSE CONNECTION
F
igure
1: s
ense
C
OnneCtiOns
www.interpoint.com
Rev F - 20090304
Page 2 of 10
CRANE [ Crane Aerospace & Electronics. ]
