The 53502 Solid State Power Controllers are lightweight, resistant to damage from shock and vibration, and immune to
contact-related problems (contamination, arcing) associated with mechanical equivalents. They are offered as a Bus
powered Version (Pin Out A) with configurable 1A / 2A Outputs for Bus voltages to 100V, 250V, 400V and 500V Versions or
offered as a single output Current of 1 or 2A and a Power Bias input of 5, 12 or 15V (Pin Out B).
Transformer coupling between the input and output stages provides effective isolation up to 1000 V RMS. The Power FET
output eliminates bipolar offset and minimizes output voltage drop.
The preferred control input is CMOS compatible operating from a bias supply of 4.5 to 5.5VDC. (See Figure 1)
Integral short-circuit protection, I
2
T trip and output status is provided. This 100V unit is pin configurable for 1A or 2A output
and the 250, 400 and 500V Units are set to 1 or 2A output. The output current flow is sensed while under load or while
switching, and responds to an over-current with an I
2
T trip curve by opening the output. An open-collector output status is
available to indicate the switch state. The output will remain blocked indefinitely until the short is removed and the unit reset.
This feature prevents damage to the controller and also averts further system failures that may be caused by the short circuit.
Output Status is On (High) when the output is switched on and is Off (Low) whenever the output is commanded off or
tripped. Resetting the unit is accomplished by recycling the input control.
These devices are available in a variety of quality levels from COTS to class K including any custom screening requirements
and all components have radiation-hardened equivalents. The basic data sheet part is environmentally screened to H level in
accordance with Table C-IX of MIL-PRF-38534 with no element evaluation or QCI.
ABSOLUTE MAXIMUM RATINGS
1
Isolation voltage .......................................................................................................................................................1000 V RMS
2
Continuous operating output voltage ................................................................................................100, 250, 400 or 500 VDC
Transient output voltage……………………………………………………………………………… .....100, 250, 400 or 500 VDC
Load Current ....................................................................................................................................................18A / Self Limiting
Bias supply voltage, V
DD
...................................................................................................................................... 4.5 to 5.5 VDC
Operating temperature ............................................................................................................................ -55ºC to +125ºC Case
Storage temperature ..........................................................................................................................................-55ºC to +125ºC
Notes:
1
2
60 Hz sine wave
Reversing polarity on the output may cause permanent damage
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
12/29/05 Rev G
Pg. 1 of 8
53502
ELECTRICAL CHARACTERISTICS
T
A
= +25° C
PARAMETER
Input characteristics
CMOS configurations (Figure 1)
Bias supply range, V
DD
Bias current
Input current
Control voltage range
Turn-on voltage
Turn-off voltage
Dielectric strength
Bus Return Bias Current:
Output characteristics
Output current, sustaining:
Continuous blocking voltage
On-state resistance, R
ds
(1A Configuration)
On-state resistance, R
ds
(2A Configuration)
Turn-on time @ 25ºC case
Turn-off time @ 25ºC case
Off-state leakage
Output Capacitance
Load Start current
Short-circuit peak
Trip Reset Time
Status Output Specification
Status Supply Voltage (open Collector)
Status off leakage current
Status off leakage current
Status on voltage
High-To-Low Transition Time
Junction temperature
Thermal resistance,
θ
JA
θ
JC
HIGH SIDE LATCHING SOLID-STATE POWER CONTROLLER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
3.3
Note 5
5 VDC Input
-0.5
At V
DD
= 5.0V
At V
DD
= 5.0V
60 Hz
28V
Bus Voltage
Steady state load
25ºC Case
25ºC Case
Figure 2
Figure 2
At Rated Voltage
25ºC
Remove short / overload
& Cycle input
6/12
50
5.0
VS = 30 VDC
VS = 15 VDC
I
STATUS
= 5 MA
I
STATUS
= 5 MA
20
0.8
0.5
40
7.5/15
1.2 / 2.4
0.5
1000
10
2.8
2.0
5
5.5
10
500
5.5
3.2
VDC
mA
µ
A
VDC
VDC
VDC
V RMS
20
2.4 / 4.8
50
See Table 1
See Table 1
2.0
1.0
100
700
9/18
100
mA
A
VDC
Ohms
Ohms
mS
mS
µ
A
pF
A
A
mS
32
100
4
0.4
50
150
30
5
VDC
µADC
µADC
VDC
µS
ºC
ºC/W
ºC/W
APPLICATION NOTES:
1. Maximum input switching frequency not to exceed 10 Hz under normal conditions, or .5 Hz if output is shorted.
2. Input transitions should be <1 ms and duration and input source should be “bounceless contact” type.
3. Inductive loads must be suppressed.
4. Peak current that may flow when output is shorted.
5. Current from the Bus input on 100V units, Current to Bias input on 250, 400 and 500V units.
Table 1
1A
R
DS
On @ 25°C
100V
250V
400V
500V
.1Ω
.15Ω
.35Ω
.45Ω
2A
Max
.075Ω
.12Ω
.30Ω
.4Ω
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
12/29/05 Rev G
Pg. 2 of 8
53502
HIGH SIDE LATCHING SOLID-STATE POWER CONTROLLER
Figure 1 Typical Connection Diagram
for 100V Versions
1 ms
CONTROL
10%
MAX
90%
90%
10%
t
ON
90%
LOAD VOLTAGE
10%
10%
t
OFF
Figure 2 Switching Characteristics
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
12/29/05 Rev G
Pg. 3 of 8
53502
VDD
HIGH SIDE LATCHING SOLID-STATE POWER CONTROLLER
CONTROL
OFF
ON
ON
SIMULATED
SHORT
OFF
3A
I
OUT
OUTPUT STATUS
OFF
ON
(OPEN)
Figure 3 - TIMING DIAGRAM
Note 1: A turn-off into a short produces an increase in current to the initial I
2
T must trip value.
Note 2: Shorted while On from any On operating condition can have a
µs
surge current of as much as
100A.
Note 3: Loss of and re-application of Bus power will result in a re-start (output open & Output Status low.)
Note 4: Output Status signal assumes a pull-up voltage is always present to produce a “1” when status is open.
Note 4. Latching feature on 250, 400, and 500V versions is dependant upon uninterrupted Bias Power.
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
12/29/05 Rev G
Pg. 4 of 8
53502
HIGH SIDE LATCHING SOLID-STATE POWER CONTROLLER
Truth Table – Power Sequencing
Bus Voltage
0
On
0
On
On
V
DD
Control
I Out
Output
Status
Short
0
X
Open
Open “1”
X
0
X
Open
Open “1”
X
(Note 1)
On
X
Open
0
X
(Note 1,2)
0
Open
0
Off
(Note 3)
Off
(Note 3,4)
Off
(Note 5)
X
X
1
Open “1”
Off
(Note 5)
0
Truth Table – Short circuit and Status
Turn on into Short Sequence
Control
I out
Output
Status
Shorted
Output
0
Off
0
Shorted
1
Off
0
Shorted
1
Off
0
X
0
Off
0
Off
1
On
Open “1”
Off
1
On
Open “1”
Off
Short while on Sequence
1
Off
0
On
1
Off
0
X
0
Off
0
X
1
On
Open “1”
Off
Note 1: Unit Powers up in the Off condition with application of either Bus power (Bias Power for 250, 400 or 500V Units)
or V
DD
.
Note 2: Output Status reports only when V
DD
is present.
Note 3: Control “0” Off must be invoked upon simultaneous applications of 5V and Bus Power for an unambiguous output
and fault status.
Note 4: An Off Control to On Control transition is required to first turn the Unit On.
Note 5: Loss of V
DD
will not change output state (with the presence of Bias Power on 250, 400 and 500V units).
Note 6: Truth Table-Power sequencing: Output Status open collector pull-up resistor is assigned a separate and always
present voltage, producing a “1” when “Open”.
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
