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SMHF283R3S Datasheet(PDF) 2 Page - Interpoint Corporation Company

Part No. SMHF283R3S
Description  DC/DC CONVERTERS 28 VOLT INPUT
Download  12 Pages
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Manufacturer  INTERPOINT [Interpoint Corporation Company]
Direct Link  http://www.interpoint.com
Logo INTERPOINT - Interpoint Corporation Company

SMHF283R3S Datasheet(HTML) 2 Page - Interpoint Corporation Company

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RECOMMENDED OPERATING CONDITIONS
TYPICAL CHARACTERISTICS
SYNC AND INHIBIT
ABSOLUTE MAXIMUM RATINGS
Input Voltage
• 16 to 40 VDC
Power Dissipation (Pd)
•8 W
Output Power
• 12 to 15 watts depending on model
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +150°C
34
DC/DC CONVERTERS
Output Voltage Temperature Coefficient
• 100 ppm /°C typical
• 150 ppm/°C maximum
Input to Output Capacitance
• 60 pF typical
Undervoltage Lockout
• 12 V input typical
Current Limit
• 115% of full load typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• 50 dB typical
Conversion Frequency (º55°C to +125°C Tc)
• Free run 550 kHz typical
480 kHz min, 620 kHz max
Inhibit Pin Voltage (unit enabled)
• 8.5 to 12 V
Input Voltage Range
• 16 to 40 VDC continuous
• 0 V for up to 50 msec transient
Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute
Derating Output Power/Current (Tc)
• Linearly from 100% at 125°C to 0% at 135°C
SMHF SERIES
SINGLE AND DUAL
15 WATT
SINGLE OUTPUT MODELS
SMHF283R3S
SMHF2805S
SMHF2812S
SMHF2815S
OUTPUT VOLTAGE
Tc = 25°C
3.27
3.3
3.33
4.95
5
5.05 11.88
12
12.12 14.85
15
15.15
VDC
OUTPUT CURRENT
VIN = 16 TO 40 VDC
2.4
2.4
1.25
1.00
A
OUTPUT POWER
VIN = 16 TO 40 VDC
0
8
0
12
0
15
0
15
W
OUTPUT RIPPLE
10 kHz - 2 MHz
60
160
30
80
60
160
60
75
mV p-p
VOLTAGE
Tc = –55°C TO +125°C
80
240
150
240
50
120
100
260
LINE REGULATION
VIN = 16 TO 40 VDC
5
100
5
100
5
100
5
100
mV
LOAD REGULATION
NO LOAD TO FULL
20
50
20
50
20
50
20
50
mV
INPUT VOLTAGE
CONTINUOUS
16
28
40
16
28
40
16
28
40
16
28
40
VDC
NO LOAD TO FULL
TRANSIENT 120 ms
0
50
0
50
0
50
0
50
V
INPUT CURRENT
NO LOAD
25
65
25
40
25
50
25
62
FULL LOAD
397
560
624
680
752
670
752
mA
INHIBITED
5
12
5
12
5
12
5
12
INPUT RIPPLE
10k Hz - 10 MHz
45
80
35
80
35
80
35
80
mA p-p
CURRENT
Tc = –55°C TO +125°C
120
120
120
120
EFFICIENCY
Tc = 25°C
70
73
73
75
78
79
74
80
%
LOAD FAULT1
SHORT CIRCUIT
POWER DISSIPATION
5
8
3.5
8
3.5
8
3.5
7
W
RECOVERY2
7.5
30
7.5
30
7.5
30
7.5
30
ms
STEP LOAD
50 %–100%– 50%
RESPONSE
TRANSIENT
–400
150
500
–500
150
500
–700
150
700
–800
200
800
mV pk
RECOVERY2
150
300
150
300
150
500
600
1200
µs
STEP LINE
16 TO 40 TO 16 VIN
RESPONSE
TRANSIENT3
–800
550
800
–800
550
800
–800
550
800
–800
550
800
mV pk
RECOVERY2
0.8
1.2
0.8
1.2
0.8
1.2
0.8
1.2
µs
START-UP
DELAY
10
25
10
25
10
25
10
25
µs
0 TO 28 VIN
OVERSHOOT4
200
300
100
600
200
1200
200
1500
mV pk
Notes
1. Indefinite short circuit protection not guaranteed above 125°C (case)
2. Recovery time is measured from application of the transient
to the point at which Vout is within regulation.
3. Input step transition time >10µs.
4. Input step transition time <100µs.
Sync In (500 to 600 kHz)
• Duty cycle 40% to 60%
• Logic low 0.8 V max
• Logic high 4.5 V min, 5 V max
• Referenced to input common
• If not used, connect to input common
Inhibit TTL Open Collector
• Logic low (output disabled)
Logic low voltage
≤0.8 V max
Inhibit pin current 4.0 mA max
• Referenced to input common
• Logic high (output enabled)
Open collector or unconnected
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.


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