High-side Power Switch with Diagnostic Function SI-5155S
Features
q
Built-in diagnostic function to detect short and open circuiting of loads and
output status signals
q
Low saturation PNP transistor use
q
Allows direct driving using LS-TTL and C-MOS logic levels
q
Built-in overcurrent and thermal protection circuits
q
Built-in protection against reverse connection of power supply
q
Tj = 150ºC guaranteed
q
TO-220 equivalent full-mold package not require insulation mica
External Dimensions
(unit: mm)
10
±0.2
3.2
±0.2
4.2
±0.2
2.8
±0.2
4.0
±0.2
7.9
±0.2
16.9
±0.3
a
b
2.6
±0.1
(Ta=25ºC)
Ratings
–13 to +40
–0.3 to V
B
6
40
2.5
22
1.8
–40 to +150
–40 to +100
–40 to +150
Unit
V
V
V
V
A
W
W
ºC
ºC
ºC
With infinite heatsink (Tc=25ºC)
Stand-alone without heatsink
1
2
3
4
5
Parameter
Power supply voltage
Input terminal voltage
DIAG terminal voltage
Collector-emitter voltage
Output current
Power dissipation
Symbol
V
B
V
IN
V
DIAG
V
CE
I
O
P
D1
P
D2
Conditions
P1.7
±0.15
• 4
0.85
–0.1
4
±0.6
+0.2
0.45
–0.1
+0.2
1. GND
2. V
IN
3. Vo
4. DIAG
5. V
B
a: Type No.
b: Lot No.
(Forming No. 1111)
Junction temperature
Operating temperature
Storage temperature
Tj
T
OP
Tstg
Standard Circuit Diagram
V
B
5
Electrical Characteristics
Ratings
Parameter
Operating power supply voltage
Quiescent circuit current
Saturation voltage of output
transistor
Output leak current
Output ON
Input voltage
Output OFF
Output ON
Input current
Output OFF
Overcurrent protection starting
current
Thermal protection starting
temperature
Open load detection resistor
Output transfer time
T
OFF
V
DH
DIAG output voltage
V
DL
T
PLH
DIAG output transfer time
T
PHL
Minimum load inductance
L
1
30
0.3
30
4.5
15
30
6
I
IL
I
S
–0.1
2.6
V
IL
I
IH
–0.3
0.8
1
Symbol
V
Bopr
Iq
V
CE (sat)
0.72
I
O
, leak
V
IH
2.0
2
V
B
min
6.0
5
typ
max
30
12
0.3
(Ta=25ºC unless otherwise specified)
Unit
V
mA
V
V
mA
V
V
mA
mA
A
V
Bopr
= 14V, V
IN
= 0V
I
O
1.0A, V
Bopr
= 6 to 16V
I
O
2.5A, V
Bopr
= 6 to 16V
V
CEO
= 16V, V
IN
= 0V
V
Bopr
= 6 to 16V
V
Bopr
= 6 to 16V
V
IN
= 5V
V
IN
= 0V
V
Bopr
= 14V, V
O
= V
Bopr
–1.5V
Conditions
V
IN
2
LS-TTL
or
CMOS
V
O
3.6
±0.5
Absolute Maximum Ratings
0.94
±0.15
2.9
–0.3
+0.2
20 max
P
Z
V
CC
SI-5155S
3
DIAG
4
5.1kΩ
Load
GND
Overheat
Normal
1
Truth table
V
IN
V
O
H
L
H
L
Diagnostic Function
Normal
Open load
Shorted load
T
TSD
Ropen
T
ON
150
30
8
30
ºC
kΩ
µS
µS
V
V
µS
µS
mH
V
Bopr
6V
V
Bopr
= 6 to 16V
V
Bopr
= 14V, I
O
= 1A
V
Bopr
= 14V, I
O
= 1A
V
CC
= 6V, V
Bopr
= 6 to 16V
V
CC
= 6V, V
Bopr
= 6 to 16V, I
DO
= 2mA
V
Bopr
= 14V, I
O
= 1A
V
Bopr
= 14V, I
O
= 1A
V
IN
V
O
DIAG
Mode
Normal
Note:
* The rule of protection against reverse connection of power supply is V
B
= –13V, one minute
(all terminals except, V
B
and GND, are open).
Open load
Shorted load
Overheat
V
IN
L
H
L
H
L
H
L
H
V
O
L
H
H
H
L
L
L
L
DIAG
L
H
H
H
L
L
L
L
q
DIAG output will be undetermined when a voltage
exceeding 25V is applied to V
B
terminal.
28
s
Quiescent Circuit Current
10
s
Circuit Current
50
s
Saturation Voltage of Output Transistor
2
40
Ta= –40ºC
25ºC
150ºC
Ta =
–40ºC
25ºC
I
B
(mA)
30
V
CE
(sat)
(V)
Iq (mA)
5
1
V
B
= 6 to 16V
Ta =
125ºC
25ºC
–40ºC
20
150ºC
10
0
0
10
20
30
40
0
0
10
20
30
40
0
0
1
2
3
V
B
(V)
V
B
(V)
I
O
(A)
s
Overcurrent Protection Characteristics
(Ta= –40ºC)
20
V
B
=
18V
16
14V
s
Overcurrent Protection Characteristics
(Ta=25ºC)
20
V
B
=
18V
16
14V
s
Overcurrent Protection Characteristics
(Ta =125ºC)
20
V
B
=
18V
16
14V
V
O
(V)
V
O
(V)
8
8V
4
8
8V
V
O
(V)
12
12
12
8
8V
6V
4
6V
0
4
6V
0
0
1
2
3
4
5
0
1
2
3
4
5
0
0
1
2
3
4
5
I
O
(A)
I
O
(A)
I
O
(A)
s
Threshold input voltage
20
Ta = 125ºC 25ºC –40ºC
15
V
B
= 16V
I
O
= 1A
s
Input Current
(Output ON)
1.0
V
B
= 14V
V
IN
= 5V
0.8
s
Input Current
(Output OFF)
5
V
B
= 14V
V
IN
= 0V
4
I
IH
(mA)
10
0.4
I
IL
(µA)
0
50
100
150
V
O
(V)
0.6
3
2
5
0.2
1
0
0
1
2
0
–50
0
–50
0
50
100
150
V
IN
(th)
(V)
Ta (ºC)
Ta (ºC)
s
Output Terminal Leak Current
2
V
B
= 14V
s
Saturation Voltage of DIAG Output
0.5
V
B
= 14V
I
DIAG
= 2mA
0.4
s
Thermal Protection Characteristics
20
V
B
= 14V
V
DIAG
= 5V
I
O
= 10mA
V
O
15
I
O leak
(mA)
V
DL
(V)
V
O
(V)
0.3
1
10
0.2
5
V
DIAG
0.1
0
–50
0
50
100
150
0
–50
0
0
50
100
150
0
50
100
150
200
Ta (ºC)
Ta (ºC)
Ta (ºC)
29
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