MHF2815S/883 View Datasheet(PDF) - Interpoint Corporation Company
Part Name
Description
MFG CO.
'MHF2815S/883' PDF : 21 Pages View PDF
MHF+ SERIES TRIPLE DC/DC CONVERTERS
15 WATT
ABSOLUTE MAXIMUM RATINGS
Input Voltage
• 16 to 48 VDC
Power Dissipation (Pd)
• 12 watts
Output Power
• 15 watts
Lead Soldering Temperature (10 sec per pin)
• 300°C
Storage Temperature Range (Case)
• –65°C to +150°C
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 48 VDC continuous
• 80 V for up to 120 msec
Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute
Derating Output Power/Current
• Linearly from 100% at 125°C to 0% at 135°C
SYNC AND INHIBIT
Sync 400 to 600 kHz
• Duty cycle 40% to 60%
• Logic low 0.8 V max
• Logic high 4.5 V min, 10.0 V max
• If not used, leave unconnected
• Referenced to input common
Inhibit: TTL Open Collector
• Logic low (output disabled)
Logic low voltage ≤0.8 V max
Inhibit pin current 3.0 typ, 5.0 max
• Referenced to input common
Logic high (output enabled)
Open collector
Unconnected or 11 to 40 V
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient
• 150 ppm/°C typical
Current Limit
• 130% typical
Isolation
• 100 megohm minimum at 500 V
Conversion Frequency
• Free run 375 minimum, 500 kHz maximum
• External sync range 400 to 600 kHz
Inhibit Pin Voltage (unit enabled)
• 10 V typical
POSITIVE
INPUT
INPUT
COMMON
SYNC
0°
PWM CM
CONTROLLER
FEEDBACK ISOLATOR
PWM CM
CONTROLLER
180°
FEEDBACK ISOLATOR
FIGURE 1: BLOCK DIAGRAM
+5 OUTPUT
OUTPUT
COMMON
+ AUX.
OUTPUT
–AUX.
OUTPUT
2
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