High-side Power Switch with Diagnostic Function SI-5155S
(unit: mm)
External Dimensions
Features
● Built-in diagnostic function to detect short and open circuiting of loads and
output status signals
● Low saturation PNP transistor use
3.2 ±0.2
4.2 ±0.2
2.8 ±0.2
10±0.2
● Allows direct driving using LS-TTL and C-MOS logic levels
● Built-in overcurrent and thermal protection circuits
● Built-in protection against reverse connection of power supply
● Tj = 150ºC guaranteed
● TO-220 equivalent full-mold package not require insulation mica
a
2.6 ±0.1
b
0.94 ±0.15
Absolute Maximum Ratings
(Ta =25ºC)
+0.2
–0.1
+0.2
–0.1
Parameter
Power supply voltage
Input terminal voltage
DIAG terminal voltage
Collector-emitter voltage
Output current
Symbol
Ratings
Unit
Conditions
0.45
0.85
P1.7 ±0.15 • 4
4 ±0.6
VB
–13 to +40
V
V
V
IN
–0.3 to VB
1. GND
a: Type No.
b: Lot No.
VDIAG
VCE
IO
6
40
V
2. V
IN
3. V
o
V
1
2
3
4
5
4. DIAG
5. VB
2.5
A
(Forming No. 1111)
PD1
PD2
Tj
22
W
W
ºC
ºC
ºC
With infinite heatsink (Tc =25ºC)
Stand-alone without heatsink
Power dissipation
1.8
Junction temperature
Operating temperature
Storage temperature
–40 to +150
–40 to +100
–40 to +150
TOP
Tstg
Standard Circuit Diagram
VB
5
VO
PZ
Electrical Characteristics
(Ta =25ºC unless otherwise specified)
3
SI-5155S
VCC
Ratings
typ
V
Parameter
Symbol
Unit
Conditions
IN
2
DIAG
min
6.0
max
30
4
5.1kΩ
VBopr
Iq
V
mA
V
Operating power supply voltage
Quiescent circuit current
LS-TTL
or
1
5
12
VBopr =14V, VIN = 0 V
CMOS
0.3
0.72
2
IO 1.0A, VBopr =6 to 16V
IO 2.5A, VBopr =6 to 16V
VCEO =16V, VIN = 0 V
Saturation voltage of output
transistor
VCE (sat)
IO, leak
V
GND
Truth table
mA
V
Output leak current
V
IN
VO
H
V
2.0
VB
VBopr =6 to 16V
Output ON
Input voltage
IH
H
VBopr =6 to 16V
V
IL
–0.3
0.8
1
V
Output OFF
L
L
IIH
IIL
mA
mA
V
IN = 5 V
Output ON
Input current
–0.1
2.6
VIN = 0 V
Output OFF
Overcurrent protection starting
current
IS
A
VBopr = 14V, VO = VBopr –1.5V
Diagnostic Function
Thermal protection starting
temperature
VBopr 6V
TTSD
150
ºC
Normal
Open load
Shorted load
Overheat
Normal
Ropen
TON
TOFF
VDH
VDL
30
30
30
6
kΩ
µS
µS
V
VBopr =6 to 16V
Bopr =14V, IO = 1 A
Bopr =14V, IO = 1 A
CC =6V, VBopr =6 to 16V
Open load detection resistor
Output transfer time
V
IN
8
V
15
V
VO
4.5
V
DIAG output voltage
0.3
30
30
V
V
CC
=6V,
V
Bopr
=6 to 16V,
I
DO
=2mA
DIAG
TPLH
TPHL
L
µS
µS
mH
VBopr =14V, IO = 1 A
Bopr =14V, IO = 1 A
DIAG output transfer time
Minimum load inductance
V
1
V
VO
DIAG
Mode
IN
L
H
L
H
L
H
L
H
L
H
H
H
L
L
L
L
L
H
H
H
L
L
L
L
Normal
Note:
Open load
* The rule of protection against reverse connection of power supply is VB= –13V, one minute
(all terminals except, VB and GND, are open).
S h o rte d lo a d
Overheat
● DIAG output will be undetermined when a voltage
exceeding 25V is applied to VB terminal.
28