The 53508 Series Solid-State Power Controllers are lightweight and resistant to damage from shock and vibration. They are
designed to replace electromechanical breakers and solid-state relays. They overcome the problems associated with arcing
and contamination of breakers as well as providing internal protection for overload and short circuit conditions. They provide
Fault and Output State monitoring as well as a controlled Soft Turn-On. The Trip Profile is externally Programmable from
30% to 100% of Rating
Optical coupling between input and output stages provide effective isolation of 1000VDC. The Power MOSFET switches
used in the output stage provide low “on” resistance, low offset and minimal internal power dissipation.
Precautions:
Precautions must be taken to limit the transient voltages generated by the inductance in the system wiring and load when a
short circuit causes the SSPC to turn off. When testing individual SSPC’s, care should be taken to simulate actual system
conditions.
ABSOLUTE MAXIMUM RATINGS
Isolation voltage .......................................................................................................................................................... 1000 VDC
Continuous operating output voltage .............................................................................................................................400 VDC
Bias supply voltage ............................................................................................................................................... -.6 to 5.5 VDC
Control Voltage ..................................................................................................................................................................32VDC
Operating temperature ............................................................................................................................ -55ºC to +125ºC Case
Storage temperature ..........................................................................................................................................-60ºC to +150ºC
Micropac Industries
cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac
reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. MICROCIRCUITS PRODUCTS DIVISION
•
905 E. Walnut St., Garland, TX 75040
•
(972) 272-3571
•
Fax (972) 494-2281
E-MAIL:
microsales@micropac.com
11/30/06 Rev A
Pg. 1 of 5
www.micropac.com
53508 Series
Solid State Power Controllers
This device is available unscreened (for engineering use) or environmentally screened to H level plus PIND in accordance
with Table C-IX of MIL-PRF-38534.
53508
ELECTRICAL CHARACTERISTICS
T
A
= -55 to 125° C
PARAMETER
TEST CONDITIONS
MIN
4.75
32 VDC Input
5 VDC Input
-0.5
See Notes 1 & 2
See Notes 1 & 2
Input /Output / Power Bus/ Case
1000
2.4
5
2.8
1.9
2.2
TYP
5.0
25
MAX
5.25
35
6
2
32.0
UNITS
VDC
mA
m
A
Input characteristics
Bias supply range
Bias current
Input Current (Control)
Input Current (Control)
Control voltage range
Turn-on voltage
Turn-off voltage
Dielectric strength
µA
VDC
VDC
VDC
VDC
Output characteristics
Output current, Continuous
Output Current, Trip Point
Output Current, Trip Point
Steady State Current Adjustment Range:
Transient Voltage
Forward Voltage Drop
Forward Voltage Drop
Turn-on time @ 25ºC case
Turn-off time @ 25ºC case
Off-State Leakage
Off-State Leakage
Total Device Power Dissipation (Tpd)
Junction temperature
Thermal resistance,
θ
JC
Output Device Rating
10A Load Current @ 25°C
10A Load Current @ 125°C
270VDC, 10A
270VDC, 10A
Vds = 550V, Tc = 25°C
Vds = 440V, Tc = 125°C
Iload = 10A. Ta = 25°C
400
500
50
Steady State Load Current
500% of Rating
600% of Rating
30
110
100
50
100
100
550
0.85
1.7
600
100
250
1000
11.5
150
2.0
120
% of Rating
mS
µS
% of Rating
VDC
VDC
VDC
µS
µS
µ
A
µA
W
ºC
ºC/W
NOTES:
1. Maximum input switching frequency not to exceed 1 Hz under normal conditions, or into a shorted output.
2. Input transitions must be “bounceless contact” with transitions of <1 ms.
3. Devices are electrically tested at -55°C, +25°C and +125°C with no environmental screening or qualification.
4. Fully compliant Class H or Class K devices will require Element Evaluation and QCI.
Micropac Industries
cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac
reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. MICROCIRCUITS PRODUCTS DIVISION
•
905 E. Walnut St., Garland, TX 75040
•
(972) 272-3571
•
Fax (972) 494-2281
www.micropac.com
E-MAIL:
microsales@micropac.com
11/30/06 Rev B
Pg. 2 of 5
53508 Series
TRIP PROFILE
700
Solid State Power Controllers
600
500
ALWAYS TRIP
% OF RATING
400
300
200
100
NEVER TRIP
0
0.01
0.1
1
TIME (SEC)
10
100
TRIP PROFILE
The Trip Profile is a combination of 2 separate functions; the I²t Circuit protection and the Short
Circuit protection. The I²t Circuit protection continuously monitors the Load Current and when the Load
Current exceeds a preset limit (110 to 120% of rating) the Time-Integral of the difference determines the
Trip time as indicated by the curved line on the chart (Typical Turn-off time is <1uS).
The Short Circuit protection continuously monitors the Load Current and when the Load Current
exceeds a preset limit (600% of Rating) it immediately shuts down the SSPC (Typical response time is <
50uS, Typical Turn-off time is <1uS).
Trip Profile External Trim
The Trip Profile is externally Programmable by connecting the proper resistance between Pins 12 and 13
(Trip Set - and Trip Set +). The following formula dictates the Profile setting:
Rext = ( 7 * Xprog / (1 – Xprog)) – 3
Where Xprog is the ratio of the desired trip point to the device rating. (0.3 < Xprog < 1)
Rext is in KOhms. Table 1 provides typical solutions for Rext.
Micropac Industries
cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac
reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. MICROCIRCUITS PRODUCTS DIVISION
•
905 E. Walnut St., Garland, TX 75040
•
(972) 272-3571
•
Fax (972) 494-2281
www.micropac.com
E-MAIL:
microsales@micropac.com
11/30/06 Rev B
Pg. 3 of 5
53508 Series
Solid State Power Controllers
Table 1
Current Rating
3A
5A
6.7A
8.3A
10A
Nominal Value (R
ext
)
0
4K
11.2K
32K
OPEN
Tolerance (R
ext
)
-
+ 10%
+ 10%
+ 10%
-
TURN ON PROFILE
300
250
90%
200
LOAD VOLTAGE
150
100
50
10%
0
0
100
200
300
400
500
600
700
800
900
1000
1100
TIME (uS)
The SSPC applies Voltage to the Load at a fixed rate of approximately 43V/100uS during Turn-On
independent of the Load Current. This corresponds to a Turn-On time of 500uS when measured
from 10% to 90% with an applied voltage of +270VDC.
Micropac Industries
cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac
reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. MICROCIRCUITS PRODUCTS DIVISION
•
905 E. Walnut St., Garland, TX 75040
•
(972) 272-3571
•
Fax (972) 494-2281
www.micropac.com
E-MAIL:
microsales@micropac.com
11/30/06 Rev B
Pg. 4 of 5
53508 Series
Solid State Power Controllers
Orderable Part Number
53508-102
53508-108
Description
Unscreened (for engineering evaluation)
Screened to Class H plus PIND of MIL-PRF-38534, Table C-IX
Micropac Industries
cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac
reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. MICROCIRCUITS PRODUCTS DIVISION
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