MOR SERIES
120 WATT
ABSOLUTE MAXIMUM RATINGS
Input Voltage
• 16 to 40 VDC
Power Dissipation (Pd)
• 30 W
Output Power
• 66 to 120 watts depending on model
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +150°C
DC/DC C
ONVERTERS
SYNC AND INHIBIT (INH1, INH2)
Sync In (525 to 625 kHz)
• Logic low 0.8 V max, duty cycle 15% to 50%
• Logic high 4.5 V min, 9 V max
• Referenced to input common
Sync Out - Referenced to input common
Inhibit (INH1, INH2) : TTL Open Collector
• Logic low (output disabled), V = 0.2 V max.
• INH1 referenced to input common
• INH2 referenced to output common
• Logic high (output enabled) open collector
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 150 pF typical
Undervoltage Lockout
• 15.5 V input typical
Current Limit
• 125% of full load typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• 40 dB typical
Conversion Frequency
• Free run mode 550 kHz typical
460 kHz. min, 570 kHz max
• External sync range 525 to 625 kHz
Inhibit Pin Voltage (unit enabled)
• INH1 = 13 V typ, INH2 = 8 V typ
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 40 VDC continuous
• 50 V for 120 msec transient
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
PINS NOT IN USE
Trim
Case
Inhibit (INH1, INH2)
Sync Out
Sync In
Share
Sense Lines
No connection
Users discrimination
No connection
No connection
Connect to input common
No connection
Must be connected to
appropriate outputs
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
OUTPUT RIPPLE
VOLTAGE
CONDITION
V
IN
= 16 to 40 VDC
V
IN
= 16 to 40 VDC
10 kHz - 20 MHz
Tc = –55°C to +125°C
10 kHz - 2 MHz
Tc = –55°C to +125°C
V
IN
= 16 to 40 VDC
NO LOAD TO FULL
CONTINUOUS
TRANSIENT 120 ms
NO LOAD
FULL LOAD
INHIBITED - INH1
INHIBITED - INH2
10 kHz - 20 MHz
Tc = –55°C to +125°C
POWER DISSIPATION
OVERLOAD
SHORT CIRCUIT
2
RECOVERY
OUTPUT CURRENT
TRIP POINT
SHORT CIRCUIT
2
50% – 100% – 50%
TRANSIENT
RECOVERY
3
16 – 40 – 16 VDC
TRANSIENT
4
RECOVERY
3
DELAY
OVERSHOOT
UNIT INHIBITED
MOR283R3S
MIN
3.25
0
0
—
—
—
—
16
—
—
—
—
—
—
74
—
—
—
—
—
—
—
—
—
—
—
—
TYP MAX
3.30 3.35
—
20
—
30
20
0
0
28
—
70
—
—
—
40
78
—
—
—
—
—
—
—
—
—
—
0
0.1
66
80
50
20
20
40
50
130
3.2
10
70
90
—
27
22
10
25
24
250
200
400
300
10
25
1.0
MOR2805S
MIN
4.95
0
0
—
—
—
—
16
—
—
—
—
—
—
78
—
—
—
—
—
—
—
—
—
—
—
—
TYP MAX
5.00 5.05
—
20
—
30
20
0
0
28
—
70
—
—
—
50
81
—
—
—
—
—
—
—
—
—
—
0
0.1
100
80
50
20
20
40
50
130
4.67
10
70
130
—
30
27
10
25
24
250
200
400
300
10
50
1.0
MOR286R3S
MIN
6.24
0
0
—
—
—
—
16
—
—
—
—
—
—
81
—
—
—
—
—
—
—
—
—
—
—
—
TYP MAX
6.30 6.36
—
16
—
75
50
0
0
28
—
70
—
—
—
50
83
—
—
—
—
—
—
—
—
—
—
0
0.1
100
100
60
20
20
40
50
130
4.45
10
70
100
—
30
24
10
20
19
500
300
500
300
10
50
1.0
MOR289R5S
MIN TYP MAX
9.40 9.50 9.60
0
—
11
0
—
—
—
—
16
—
—
—
—
—
—
81
—
—
—
—
—
—
—
—
—
—
—
—
—
75
50
0
0
28
—
70
—
—
—
50
84
—
—
—
—
—
—
—
—
—
—
0
0.1
105
120
80
20
20
40
50
130
4.63
10
70
130
—
30
24
10
14
13
500
300
500
300
10
50
1.0
UNITS
VDC
A
W
mV p-p
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
INPUT CURRENT
mV
mV
VDC
V
mA
A
mA
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
1
mA pp
%
W
ms
A
STEP LOAD RESP.
mV pk
µs
mV pk
µs
ms
mV pk
mA
STEP LINE RESP.
START-UP
INHIBIT PIN CURRENT
Notes: See notes 1, 2, 3, and 4 on the following page.
2
INTERPOINT [ INTERPOINT CORPORATION COMPANY ]
