P140 SERIES
ENGINEERING DATA SHEET
SOLID STATE POWER CONTROLLER
28 VDC, 1PNO-WITH CURRENT OR VOLTAGE
STATUS OUTPUT
1, 2, 4, 5, 7, 7.5 AND 10 AMP RATINGS
DESCRIPTION
This LEACH Solid State Power Controller features reliable, trouble
free switching together with real short circuit and overload
protection. Load current is sensed and shutdown initiated within
microseconds. A status signal is derived from the load current value
or load voltage value and is reported via an optically isolated status
output.
Designed to operate in 28VDC systems, these devices do not
require derating for any load type.
They are hermetically sealed, in a metal package.
For other ratings and operating voltages, please consult LEACH.
SIZE: 25.7 x 25.7 x 9.7 mm
FEATURES
q
No derating for all types of loads up to
q
Fast acting
q
Built-in overload and short circuit
85° C
q
Very low voltage drop
protection
q
No heat sink required
q
Trip free
q
Extremely small size
BLOCK DIAGRAM
Wide BIAS Voltage range
q
Fully isolated bias, control and
status
q
Real load current status
q
Exceeds MIL-P-81653
requirements
q
Tel: (33) 3 87 97 31 01 Tel: (852) 2 191 3830
Fax: (33) 3 87 97 96 86 Fax: (852) 2 389 5803
Fax: (01) 714-670-1145
Data sheets are for initial product selection and comparison. Contact Leach International prior to choosing a component.
Featuring
LEACH
©
power and control solutions
Tel: (01) 714-736-7599
www.leachintl.com
EUROPE
AMERICAS
6900 Orangethorpe Ave. 2 Rue Goethe
57430 Sarralbe
P.O. Box 5032
Buena Park, CA 90622 USAFrance
ASIA
Room 501, 5/F, The Centre Mark
287 - 299 Queen's Road Central
Hong Kong
Date of issue: 4/10
-5-
Page 1 of 4
ELECTRICAL CHARACTERISTICS
Typical values are at 25 ± 5°C INPUT
Specification
BIAS On Voltage
BIAS On Current
BIAS Off Current
CONTROL voltage "on"
CONTROL voltage "off"
CONTROL current "on"
CONTROL current "off"
Transients (BIAS Input)
Notes:
1. Bias voltage must be a step function.
2. No reverse polarity protection.
3. BIAS voltage is 5.0 V or 28 V respectively.
4. At 32 V, typical at 5 V.
5. Maximum duration 50 ms, duty cycle =1%, repetition rate 1 Hz.
2.4
-0.3
P140 SERIES
5 VOLT BIAS
Min.
4.5
Typ.
Max.
5.5
20
1
32
0.8
0.3
-20
15
2.4
-0.3
28 VOLT BIAS
Min.
18
Typ.
Max.
32
13
3
32
0.8
0.3
-20
50
Unit
V
mA
mA
V
V
mA
µA
V
5
4
Note
1,2
3
3
POWER OUTPUT
Specification
Load current
"ON" state voltage drop
"OFF" state line voltage
Leakage current
Transients
Isolat Voltage
Insulation Resistance
Spikes
Trip current
500
100
-600
107
110
1000
+600
120
Min.
0
100
Typ.
Max.
100
200
32
100
+50
Unit
% Irated
mV
V
µA
V
Vrms
MΩ
V
% Irated
Note
1
2
3
4
5
8
9
6
7
Notes:
1. Observe thermal derating cure. Available ratings see front page.
2. For 4 amp and higher current versions maximum voltage drop is 300 mV. Load current is 100% rated current.
3. Reverse polarity is not blocked and may damage the SSPC.
4. At 100° C and 28V.
5. Maximum duration 50 ms, duty cycle =1%, repetition rate 1 Hz.
6. Time per MIL-P-81653.
7. See "Trip characteristics".
8. 60 Hz, 10.5 BIAS, CONTROL, STATUS and GND tied together; LINE and Load tied together. Tested between GND, LINE and CASE at
sea level.
9. At ±500VDC ±10% between GND, LINE, and CASE.
STATUS OUTPUT
Specification
STATUS voltage "high"
STATUS voltage "low"
STATUS Pick-up current
STATUS Drop-out current
STATUS Pick-up voltage
STATUS Drop-out voltage
STATUS output impedance
Notes:
1. Current sensed. Percentage of rated current.
2. Voltage sensed. Percentage of applied line voltage across the load.
3. Normal "on" condition.
4. Normal "off" or "tripped off" condition.
2.5
2.7
15
99
1
3.0
Min.
3.5
Typ.
Max.
5.5
0.3
25
Unit
V
V
%
%
%
%
K
Ω
1
1
2, 3
2, 4
Note
Date of issue: 4/10
-6-
Page 2 of 4
TIMING
P140 SERIES
Parameter
Symbol
Max
Unit
Note
Turn on delay
t0
200
µs
2
Load current rise time
t1
50
µs
2
Load to STATUS on delay
t2
100
µs
2
Turn off delay
t3
200
µs
2
Load current fall time
t4
50
µs
2
Load to STATUS off delay
t5
100
µs
2
Overload STATUS response
t6
100
µs
3
Notes:
1. All timing measurements are taken from/to 10% and/or 90% terminated with a resistive rated load.
2. At 100% rated current
3. At 250% rated current
"STATUS" is active high. V
BIAS
is 5.0 V or 28 V respectively. Rated resistive load; measurements taken between 10% and 90% points.
TRIP CHARACTERISTIC
Date of issue: 4/10
-7-
Page 3 of 4
ENVIRONMENTAL DATA
Specification
Operational Temp. Range
Storage Temp. Range
Thermal Resistance, Junction to case
Max. Junction Temperature of Output Stage
Vibration
Acceleration
Shock
MTBF
Altitude
Notes:
1. See thermal derating curve
2. Case temperature
3. MIL-STD-883, Method 2007, 20-2000 Hz
880000
80000
Min.
-55
-55
Max.
105
125
20
150
27 g
20 g, 6...9 ms
h
ft
P140 SERIES
Unit
°C
°C
° C/W
°C
3
4
5
6
Note
1, 2
30 g, 96....2000 hz
4. MIL-STD-883, Method 2001
5. MIL-STD-883, Method 2002, 0.5 ms
6. Per MIL-HDBK-217E, Quality level B-1, AUT environmental at ±25°C
THERMAL DERATING
All ratings: No heatsink
PHYSICAL DATA (in mm)
.
Case Finish: 1 and 2 amp
versions Tin Plated. 4 amp
version and above matte
black painted
.
Terminals: Tin Plated
.
Mass: 20 grams max. (all
ratings)
This engineering data sheet is designed for initial selection and comparison of products. While every effort is made to ensure the
accuracy of all data, each part number, and its application, must be controlled by a Product Control Drawing (PCD).
Date of issue: 4/10
-8-
Page 4 of 4
