MCH SERIES
1.5 WATT
ABSOLUTE MAXIMUM RATINGS
Input Voltage
• 12 to 50 VDC
Output Power
• 1.5 W
Capacitive Load
• Single output models 200 µF
• Dual output models 100 µF
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +150°C
DC/DC C
ONVERTERS
INHIBIT
Inhibit – TTL Open Collector
• Logic low (output disabled) 0.8 V max
Inhibit pin current 1 mA max
• Referenced to input common
• Logic high (output enabled) open collector
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 100 to 170 pF typical
Undervoltage Lockout
• 8 V input typical
Current Limit
• 125% of full load typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection 40 dB, typical
Conversion Frequency (kHz)
• 25°C, 300 min, 370 typ, 450 max
• –55°C to +125°C
270 min, 370 typ, 470 max
Inhibit Pin Voltage (unit enabled)
• 7 to 12 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 12 to 50 VDC continuous
• 80 V for 120 msec transient
(70 V for 15 V single and dual models)
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
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
SINGLE OUTPUT MODELS
PARAMETER
CONDITIONS
OUTPUT VOLTAGE
1
Tc = 25°C
Tc = –55°C TO +125°C
OUTPUT CURRENT
V = 12 to 50 VDC
IN
MCH2805S
MCH285R2S
MCH2812S
MCH2815S
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
4.95
5
5.05 5.15 5.2 5.25 11.88 12 12.12 14.85 15 15.15
4.80
5
5.20 5.00 5.2 5.40 11.52 12 12.48 14.40 15 15.60
—
300
0
—
288
0
—
125
0
—
100 mA
0
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
—
—
72
69
—
—
—
—
–400
–500
—
—
–400
–500
—
—
—
—
—
—
—
45
65
35
40
350
380
100
115
28
—
5.5
6.0
70
73
2.3
2.4
100
130
77
75
1.3
1.4
3.0
3.5
185
185
125
125
170
180
0.75
0.75
7
10
0
0
1.5
150
300
100
120
700
800
200
300
50
80
10
11
74
78
3.2
3.5
200
250
—
—
2.0
2.3
12
15
400
500
500
600
400
500
3.0
4.0
20
40
100
150
0
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
—
—
72
69
—
—
—
—
–400
–500
—
—
—
45
65
35
40
350
380
100
115
28
—
5.5
6.0
70
73
2.3
2.4
100
130
77
75
1.3
1.4
3.0
3.5
185
185
125
125
1.5
150
300
100
120
700
800
200
300
50
80
10
11
74
78
3.2
3.5
200
250
—
—
2.0
2.3
12
15
400
500
500
600
0
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
—
—
74
72
—
—
—
—
–700
–800
—
—
—
50
70
60
70
600
640
145
160
28
—
6.0
6.5
68
70
2.3
2.4
100
150
79
77
2.0
2.2
3.5
3.5
350
380
130
130
1.5
200
300
200
250
1300
1400
300
400
50
80
10
12
72
74
3.2
3.5
200
250
—
—
3.2
3.5
15
20
700
800
500
600
0
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
—
—
74
72
—
—
—
—
–700
–800
—
—
—
1.5
UNITS
VDC
OUTPUT POWER
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
LOAD REGULATION
V
IN
= 12 TO 50 VDC
10 kHz - 2 MHz
Tc = –55°C TO +125°C
V = 12 TO 50 VDC
IN
Tc = –55°C TO +125°C
10% TO FULL LOAD
Tc = –55°C TO +125°C
50% TO FULL
Tc = –55°C TO +125°C
CONTINUOUS
TRANSIENT 120 ms
NO LOAD
Tc = –55°C TO +125°C
FULL LOAD
Tc = –55°C TO +125°C
INHIBITED
Tc = –55°C TO +125°C
10k Hz - 10 MHz
Tc = –55°C TO +125°C
Tc = 25°C
Tc = –55°C TO +125°C
POWER DISSIPATION
Tc = –55°C TO +125°C
RECOVERY
Tc = -–55°C TO +125°C
50 %–100%– 50% LOAD
TRANSIENT
Tc = –55°C TO +125°C
RECOVERY
Tc =–55°C TO +125°C
12 TO 50 TO 12 V
IN
TRANSIENT
Tc = –55°C TO +125°C
RECOVERY
Tc = –55°C TO +125°C
DELAY
Tc = –55°C TO +125°C
OVERSHOOT
Tc = –55°C TO +125°C
W
mV p-p
mV
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
INPUT RIPPLE
CURRENT
2
EFFICIENCY
LOAD FAULT
3, 4
35 150
50 250
70 300
80 350
700 1500
760 1600
165 350
185 450
28
50
—
70
6.0
11
6.5
12
68
72
70
74
2.3 3.2
2.4 3.5
100 200
150 250
79
—
77
—
2.3 3.7
2.5 4.0
4.0
18
4.0
20
350
380
140
180
700
800
600
750
750
850
2.0
2.5
20
40
300
450
mV
VDC
V
mA
mA p-p
%
W
ms
STEP LOAD
RESPONSE
5
mV pk
µs
STEP LINE
RESPONSE
5
START-UP
0 TO 28 VDC
–400 170
–500 180
—
0.75
—
0.75
—
7
—
10
—
0
—
0
400 –900 400
500 –1000 400
3.0
—
0.6
4.0
—
0.6
20
—
7
40
—
10
100
—
0
150
—
0
900 –750 400
1000 –850 450
2.5
—
0.47
3.0
—
0.5
20
—
7
40
—
10
250
—
0
350
—
0
mV pk
ms
ms
mV pk
See notes 1, 2, 3, 4, 5, and 6 on the following page.
2
INTERPOINT [ INTERPOINT CORPORATION COMPANY ]
