CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Electrical Specifications
T
A
= -40
o
C to +125
o
C; V
IN
= 4V to 16V; V
CON
= GND or 0V, Unless Otherwise Specified
PARAMETERS
Input (Supply) Voltage Operating
Range
Input Voltage Threshold for Forward
Turn-On to Load
Input Voltage for Output Shutdown
Output Shutdown Leakage
Output Cutoff Leakage
Thermal Shutdown Temperature
Maximum Output Transient Pulse
Current
Maximum Control Transient Pulse
Current
Short Circuit Current
Input-to-Output Voltage Drop
SYMBOL
V
IN
V
THD
V
SHSD
I
LEAK1
I
LEAK2
T
SD
I
OUT
(Tran)
I
CON
(Tran)
I
SC
V
IN
= 4V, I
OUT
= 175mA
V
IN
= 9V, I
OUT
= 500mA
V
IN
= 16V, I
OUT
= 800mA
V
IN
= 16V, I
OUT
= 1A
Control Current
I
CON
V
IN
= 16V, I
OUT
= 100mA
V
IN
= 16V, I
OUT
= 800mA
V
IN
= 16V, I
OUT
= 1A
Turn ON (Rise Time);
“Pass-Thru” Mode
Turn OFF (Fall Time);
“Pass-Thru” Mode
Turn ON (Rise Time);
High Pass Switch Mode
Turn OFF (Fall Time);
High Pass Switch Mode
t
ON
Switch V
IN
0V(GND) to 5.5V; Mea-
sure V
OUT
(to 90%); Load = 1kΩ
(Note 3)
Switch V
IN
5.5V to 0V(GND); Mea-
sure V
OUT
(to 90%); Load = 1kΩ
(Note 3)
See Figure 3 and Figure 4 (Note 3)
See Figure 3 and Figure 4 (Note 3)
V
IN
=
±90V
for 15ms, V
OUT
= 14V
V
IN
=
±90V
for 15ms, V
OUT
= 14V
TEST CONDITIONS
(Note 1); Also, See Figure 4 for
Expanding V
IN
Range
Load = 1kΩ
(Note 2)
V
IN
= 19V and 24V; Load = 1kΩ
V
IN
= 16V; Control Open; Load = 1kΩ
MIN
4
-
16
-
-
-
-20
-50
1
-
-
-
-
-
-
-
-
TYP
-
2.5
-
-
1
150
-
-
-
-
-
-
0.8
-
-
50
-
MAX
16
-
19
100
-
-
+20
+50
2
0.25
0.65
1.05
-
25
50
-
20
UNITS
V
V
V
µA
µA
o
C
mA
mA
A
V
V
V
V
mA
mA
mA
µs
t
OFF
-
-
20
µs
t
ON
t
OFF
-
-
15
15
-
-
µs
µs
NOTES:
1. The Input Operating Voltage is not limited by the threshold of Shutdown. The V
IN
voltage may range to
±24V
while the normal functional
switching range is typically +2.5V to +17.5V (reference to V
CON
).
2. The Output Drive is switched-off when the Input voltage(Supply pin), referenced to the Control pin exceeds the threshold shutdown
VSHSD or the input voltage is less than the forward turn-on threshold (Including negative voltages within the transient peak ratings).
3. T
ON
and T
OFF
times include Prop Delay and Rise/Fall time.
4. The worst case thermal resistance,θ
JC
for the SIP TO-220 is 4
o
C/W. The calculation for dissipation and junction temperature rise due to
dissipation is:
P
D
= (V
IN
-V
OUT
) + (V
IN
)(I
CON
)
T
J
= T
AMBIENT
+ (P
D
) (θ
JC
) for an infinite Heat Sink.
Derating from 150
o
C is based on the reciprocal of thermal resistance,
θ
JC
+θ
HS
. For example: Where
θ
JC
= 4
o
C/W and given
θ
HS
= 6
o
/W
as the thermal resistance of an external Heat Sink, the junction-to-air thermal resistance,
θ
JA
= 10
o
C/W. Therefore, for the maximum allowed
dissipation, derate 0.1W/
o
C for each degree from T
AMB
to the maximum rated junction temperature of 150
o
C. If T
AMB
= 100
o
C, the maximum
P
D
is (150 - 100) x 0.1W/
o
C = 5W.
9-23
HIP1090
Applications
The HIP1090 may be used as a “hard-wired pass-thru”
device to protect the load from source voltage transients or
may be used as an active high side power interface switch
with up to 1A of Load current capability. An ON state
condition of (V
IN
- 4V)
≤
V
CON
≤
(V
IN
- 16V) is the normal
range required to activate the high pass switch, allowing the
supply source to conduct through the PNP to the load. When
the control terminal, V
CON
is open, the high pass switch is
open (no conduction). Figure 2 shows an HIP1090
application example with a switch in the V
CON
terminal. In
comparison to the hard wired circuit of Figure 1 where pin 2
is fixed at ground, pin 2 in the circuit of Figure 2 is switched
from open to ground to turn-ON the high pass switch. Used
in this mode, the HIP1090 is both an effective transient
suppressor and a high pass switch. The switch in the V
CON
terminal may be active or passive and conducts typically
less than 50mA of current. The HIP1090 used in the con-
trolled switching mode retains all of the protected features of
the device. In either circuit the output capacitor may be
increased in size to hold charge longer during transient
interruptions at the input. The charge duration for larger
capacitors or for lamp loads is tolerated because of the
internal short circuit current limiting protection. Sustained
short circuits may cause the junction temperature to reach
the thermal shutdown temperature (150
o
C).
INPUT 1
V
IN
R
S
V
OUT
3
0.47µF
DASH PANEL LOAD
TO OTHER
LIGHTS
AND
INSTRUMENTS
LAMP
RADIO
SWITCH
V
BATT
THERMAL
LIMIT
CURRENT
LIMIT
OVER-
VOLTAGE
SHUTDOWN
BASE
CURRENT
AMPLIFIER
V
CE
SAT
DETECTOR
2
V
CON
(CONTROL OR GND)
FIGURE 1. TYPICAL APPLICATION OF THE HIP1090 AS A TRANSIENT SUPPRESSOR IN A “PASS-THRU” MODE
INPUT 1
V
BATT
V
IN
R
S
V
OUT
3
0.47µF
TO
1000µF
LOAD
THERMAL
LIMIT
CURRENT
LIMIT
OVER-
VOLTAGE
SHUTDOWN
BASE
CURRENT
AMPLIFIER
V
CE
SAT
DETECTOR
2
V
CON
(CONTROL)
ON
NOTE:
V
LOAD
= V
BATT
- V
SAT
V
SAT
TYP < 0.8V at 1A
OFF
SWITCH
FIGURE 2. TYPICAL APPLICATIONS OF THE HIP1090 AS A TRANSIENT SUPPRESSOR IN A HIGH PASS SWITCH MODE
9-24
HIP1090
Figure 3 shows the pulsed output switching characteristics
of the HIP1090 as a high side driver. A small delay step is
noted on the rising edge due to the hold-off of a V
CE
SAT
detector circuit. The V
CE
SAT circuit senses the saturation
level of the PNP pass transistor and controls the drive as a
ratio of load current. As the load current is reduced, the drive
current to the output transistor is reduced. Under low current
operation, the saturation level is controlled and the turn-OFF
switching time is much faster. The control switching element
is shown as a 2N5320 NPN transistor but may be any open
collector or MOS gate. A pull-up resistor of 2kΩ is used for a
slight improvement in the turnoff fall time but is not an
essential requirement. The V
CON
terminal may be controlled
with a mechanical switch or may be controlled from any
driver output that can sink the worst case condition of pin 2
current, I
CON
when the output load current is increased to 1A
(typically 50mA).
V
OUT
HIP1090
(OUTPUT)
24Ω
V
CON
(CONTROL PIN)
1kΩ
ON
V
B
2N5320
OR EQUIVALENT
OFF
ON
The circuit of Figure 4 shows how the HIP1090 transient
suppression voltage shutdown threshold may be increased
by using a zener diode from the V
CON
terminal to the collec-
tor terminal of the transistor switch. The preferred method is
to use a zener diode for a fixed level shift. While a resistor in
place of the zener diode having the same voltage drop will
work well, the parametric variation of the I
CON
current will
cause variations of the Over-Voltage Shutdown Threshold.
In this circuit, a 10V zener provides a typical over-voltage
threshold shift to ~27V. The threshold for over-voltage shut-
down is referenced to the (V
IN
- V
CON
) voltage difference.
V
OUT
HIP1090
(OUTPUT)
24Ω
V
CON
10V
1kΩ
2N5320
OR EQUIVALENT
+24V
(SUPPLY INPUT)
2kΩ
OPTIONAL
V
IN
+16V
(SUPPLY INPUT)
2kΩ
OPTIONAL
V
IN
FIGURE 4. A TYPICAL APPLICATION CIRCUIT THAT USES A
ZENER TO THE V
CON
TRANSISTOR SWITCH TO
RAISE
THE
OVER-VOLTAGE
SHUTDOWN
THRESHOLD
OFF
15
10
5
0
T
ON
15µs
ON
OFF
V
B
T
OFF
15µs
V
OUT
Also, it is important to note that high peak current values
may be reached when driving nonlinear and inductive loads.
The peak output current of the HIP1090 is self limiting in the
1A to 2A range to protect against short circuit conditions.
Sustained high peak current may increase the junction tem-
perature to 150
o
C and cause thermal shutdown. When this
happens, the output current will fall off briefly before recover-
ing, unless the over-temperature condition is sustained.
Internally, both input and output over-voltage conditions are
sensed to protect the circuit, making the high levels of tran-
sient voltage ratings possible. Sustained voltage ratings of
±24VDC
with transient ratings to
±90V
allow a wide variety
of applications in high stress environments.
Except for the V
CE
SAT detector circuit, the HIP1090 is a
higher current version of the CA3273 high side driver, which
turns-on without the delayed step on the leading edge of the
output pulse; switching with a typical T
ON
time of ~0.5µs.
The CA3273 has a higher transient suppression threshold.
FIGURE 3. TYPICAL ON-OFF SWITCHING CHARACTERISTIC
OF THE HIP1090 USING AN NPN TRANSISTOR TO
SWITCH THE V
CON
INPUT TERMINAL
9-25
HIP1090
Typical Performance Curves
60
CONTROL CURRENT (PIN 2) (mA)
CONTROL CURRENT (PIN 2) (mA)
T
A
= +25 C
50
40
30
20
10
00
R
LOAD
= 16Ω
V
CON
= GND
o
30
T
A
= +25
o
C
25
20
15
10
5
0
5
10
V
IN
SUPPLY VOLTAGE (V)
15
20
V
OUT
OPEN
V
CON
= GND
0
5
10
V
IN
SUPPLY VOLTAGE (V)
15
20
FIGURE 5. CONTROL (QUIESCENT) CURRENT CHARACTER-
ISTIC WITH LOAD
FIGURE 6. CONTROL (QUIESCENT) CURRENT CHARACTER-
ISTIC WITH NO LOAD
V
SAT
= (V
IN
- V
OUT
) VOLTAGE (mV)
T
A
= +25
o
C
1000
800
R
LOAD
= 16Ω
V
CON
= GND
600
400
200
0
0
0.5
1.0
1.5
LOAD CURRENT (A)
FIGURE 7. SATURATION (V
IN
- V
OUT
) CHARACTERISTIC
All Intersil semiconductor products are manufactured, assembled and tested under
ISO9000
quality systems certification.
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate
and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site
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