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參數(shù)資料
| 型號(hào)： | SMHF2815S |
| 廠商： | CRANE ELECTRONICS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DC/DC CONVERTERS 28 VOLT INPUT |
| 中文描述： | 1-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁(yè)數(shù)： | 2/12頁(yè) |
| 文件大小： | 227K |
| 代理商： | SMHF2815S |
RECOMMENDED OPERATING CONDITIONS
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
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 C
ONVERTERS
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
SMHFSERIES
SINGLE AND DUAL
15 WATT
SINGLE OUTPUT MODELS
OUTPUT VOLTAGE
OUTPUT CURRENT
SMHF283R3S
3.27
3.3
—
—
SMHF2805S
4.95
—
—
SMHF2812S
12
—
—
SMHF2815S
15
—
—
Tc = 25°C
3.33
2.4
5
5.05 11.88
2.4
12.12 14.85
1.25
15.15
1.00
VDC
A
V
IN
= 16 TO 40 VDC
V
IN
= 16 TO 40 VDC
10 kHz - 2 MHz
Tc = –55°C TO +125°C
V
IN
= 16 TO 40 VDC
OUTPUT POWER
0
—
8
0
—
12
0
—
15
0
—
15
W
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
—
—
—
60
80
5
160
240
100
—
—
—
30
150
5
80
240
100
—
—
—
60
50
5
160
120
100
—
—
—
60
100
5
75
260
100
mV p-p
mV
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
NO LOAD TO FULL
CONTINUOUS
TRANSIENT 120 ms
NO LOAD
FULL LOAD
INHIBITED
10k Hz - 10 MHz
Tc = –55°C TO +125°C
Tc = 25°C
SHORT CIRCUIT
POWER DISSIPATION
RECOVERY
2
50 %–100%– 50%
TRANSIENT
RECOVERY
2
16 TO 40 TO 16 V
IN
TRANSIENT
3
RECOVERY
2
DELAY
OVERSHOOT
4
—
16
0
—
—
—
—
—
70
20
28
—
25
—
5
45
—
73
50
40
50
65
397
12
80
120
—
—
16
0
—
—
—
—
—
73
20
28
—
25
560
5
35
—
75
50
40
50
40
624
12
80
120
—
—
16
0
—
—
—
—
—
78
20
28
—
25
680
5
35
—
79
50
40
50
50
752
12
80
120
—
—
16
0
—
—
—
—
—
74
20
28
—
25
670
5
35
—
80
50
40
50
62
752
12
80
120
—
mV
VDC
V
mA
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
1
mA p-p
%
—
—
5
8
—
—
3.5
7.5
8
—
—
3.5
7.5
8
30
—
—
3.5
7.5
7
W
ms
7.5
30
30
30
STEP LOAD
RESPONSE
–400
—
150
150
500
300
–500
—
150
150
500
300
–700
—
150
150
700
500
–800
—
200
600
800
1200
mV pk
μs
STEP LINE
RESPONSE
–800
—
—
—
550
0.8
10
200
800
1.2
25
300
–800
—
—
—
550
0.8
10
100
800
1.2
25
600
–800
—
—
—
550
0.8
10
200
800
1.2
25
1200
–800
—
—
—
550
0.8
10
200
800
1.2
25
1500
mV pk
μs
μs
mV pk
START-UP
0 TO 28 VIN
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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