參數(shù)資料
型號: SMHF2815D
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: 2-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE
文件頁數(shù): 2/12頁
文件大?。?/td> 227K
代理商: SMHF2815D
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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