SI-5151S Datasheet, PDF (1/2 Pages) Sanken electric – High-side Power Switch with Diagnostic Function

High-side Power Switch with Diagnostic Function SI-5151S
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 TO-220 equivalent full-mold package not require insulation mica
External Dimensions ^{(unit: mm)}
3.2 ^±0.2
10 ^±0.2
4.2 ^±0.2
2.8 ^±0.2
a
b
2.6 ^±0.1
Absolute Maximum Ratings
Parameter
Symbol
Power supply voltage
Input terminal voltage
DIAG terminal voltage
Collector-emitter voltage
Output current
Power Dissipation
VB
VIN
VDIAG
VCE
IO
PD1
PD2
Ratings
40
–0.3 to VB
6
40
1.8
18
1.5
Junction temperature
Operating temperature
Storage temperature
Tj
TOP
Tstg
–40 to +125
–40 to +100
–40 to +125
(Ta = 25ºC)
Unit
Conditions
0.94 ^±0.15
R-end
V
V
V
V
A
W
With infinite heatsink (Tc = 25ºC)
Stand-alone without heatsink
W
(Tc = 25ºC)
0.85
+0.2
–0.1
P1.7^±0.1 • 4 = 6.8
+0.2
0.45 –0.1
4 ^±0.6
1. GND
2. VIN
3. VO
4. DIAG
5. VB
a: Type No.
b: Lot No.
(Forming No. 1123)
ºC
ºC
Standard Circuit Diagram
ºC
Electrical Characteristics
Parameter
Symbol
min
Operating power supply voltage VBopr
6.0
Quiescent circuit current
Iq
Saturation voltage of output
transistor
VCE (sat)
Output leak current
IO, leak
Output ON
VIH
2.0
Input voltage
Output OFF
VIL
–0.3
Output ON
IIH
Input current
Output OFF
IIL
–0.1
Overcurrent protection starting
IS
1.9
current
Thermal protection starting
temperature
TTSD
125
Open load detection resistor
Ropen
Output transfer time
DIAG output voltage
DIAG output transfer time
Minimum load inductance
TON
TOFF
VDH
4.5
VDL
TPLH
TPHL
L
1
Ratings
typ
5
145
8
15
(Ta=25ºC unless otherwise specified)
max
30
12
0.5
1.0
2
VB
0.8
1
Unit
V
mA
V
V
mA
V
V
mA
mA
Conditions
VBopr = 14V, VIN = 0V
IO 1.0A, VBopr = 6 to 16V
IO 1.8A, VBopr = 6 to 16V
VCEO = 16V
VBopr = 6 to 16V
VBopr = 6 to 16V
VIN = 5V
VIN = 0V
A
VBopr =14V, VO =VBopr –1.5V
ºC
30
kΩ
VBopr = 6 to 16V
30
µS
VBopr = 14V, IO = 1A
30
µS
VBopr = 14V, IO = 1A
6
V
VCC = 6V
0.3
V
VCC = 6V, IDD = 2mA
30
µS
VBopr = 14V, IO = 1A
30
µS
VBopr = 14V, IO = 1A
mH
Note:
* The rule of protection against reverse connection of power supply is VB = –13V, one minute
(all terminals except, VB and GND, are open).
LS-TTL
or
CMOS
VB
5
VO
PZ
SI-5151S ³
VCC
VIN ₂
DIAG
4 _5.1kΩ
1
Truth table
VIN
VO
H
H
L
L
GND
Diagnostic Function
VIN
VO
DIAG
Normal
Open load Shorted load Overheat
Normal
Mode
VIN
VO DIAG
Normal
L
L
L
H
H
H
Open load
L
H
H
H
H
H
Shorted load
L
H
L
L
L
L
Overheat
L
L
L
H
L
L
q DIAG output will be undetermined when a voltage
exceeding 25V is applied to VB terminal.
20