9-22
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
407-727-9207
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Copyright
Intersil Corporation 1999
HIP1090
Protected High Side Power Switch
with Transient Suppression
Description
The HIP1090 is a Protected Power Interface Switch
designed to suppress potentially damaging over-voltage
transients with peak voltage source inputs ranging up to
90V in amplitude. It is designed to be operated in a `hard-
wired' pass-thru mode or as a high side power switch which
controls the current flow through a PNP pass transistor of
the IC. In either mode The HIP1090 has a low saturated
forward voltage drop. The protected load circuit is connected
to the output of the IC. As such, the HIP1090 operates as a
transient suppressor where the PNP drive transistor is
switched off when V
IN
is greater than the Over-Voltage Shut-
down range of 16V to 19V. Shutdown also occurs when V
IN
is less than the forward turn-on threshold of approximately
2.5V, including the negative voltage range.
The merits of transient suppression depend on the required
integrity of the applications load elements. Instrument panel
signal warning lights for critical functions such as over-
temperature or low fluid levels can be protected by the
HIP1090 against high level transient voltages and double
battery conditions that may potentially cause bulb burnouts.
The HIP1090 may be used to protect the power supplies of
small signal or logic circuits with voltages ranging from 4V to
16V, effectively blocking higher peak voltages.
The HIP1090 has internal current limiting protection in the
range of 1A to 2A for short circuit to ground conditions and
thermal shutdown protection when the junction temperature
is greater than 150
o
C. It is capable of driving resistive,
inductive or lamp loads (such as lamps No. 168 or 194) with
minimum risk of damage under harsh environmental stress
conditions. The HIP1090 is supplied in a 3 lead TO-220AB
package.
Features
90V Transient Suppression
4V to 16V Operating Voltage
1A Current Load Capability
Low Input-Output Voltage Drop With Controlled
Saturation Detector for
- Fast Low Current Turn-OFF
- Reduced No-Load Idle Current
Over-Voltage Shutdown Protection
Short Circuit Current Limiting
Over-Temperature Limiting Protected
Thermal Limiting at T
J
= +150
o
C
-40
o
C to +125
o
C Operating Temperature Range
Applications
Electronic Circuit Breaker
Transient Suppressor
Over-Voltage Monitor
High Side Driver Switch for
- Relays
- Solenoids
- Heaters
- Motors
- Lamps
Ordering Information
PART
NUMBER
TEMPERATURE
RANGE
PACKAGE
HIP1090AS
-40
o
C to +125
o
C
TO-220AB SIP
March 1995
Pinout
HIP1090 (SIP)
TOP VIEW
V
IN
(SUPPL
Y)
V
CON
(CONTROL)
V
OUT
(LOAD)
NOTE:
INTERNALLY
CONNECTED
TO PIN 2
HEAT SINK TAB
1
2
3
Functional Block Diagram
BASE
CURRENT
LIMIT
2
V
CON
(CONTROL OR GND)
R
S
3
V
OUT
CURRENT
AMPLIFIER
(TO LOAD)
0.02
OVER-
VOLTAGE
SHUTDOWN
V
CE
SAT
DETECTOR
THERMAL
LIMIT
1
V
IN
(V
CC
OR
V
BATT
)
File Number
3398.3
9-23
Specifications HIP1090
Absolute Maximum Ratings
Thermal Information
Input (Supply) Voltage, V
IN
(Control Pin Reference) . . . . . . . .
24V
Transient Max Voltage, V
IN
(15ms) . . . . . . . . . . . . . . . . . . . . .
90V
Load Current, I
OUT
. . . . . . . . . . . . . . . . . . . . Short Circuit Protected
Thermal Resistance
JA
JC
Plastic SIP Package . . . . . . . . . . . . . . . .
50
o
C/W
4
o
C/W
Maximum Power Dissipation, (Note 4)
At T
A
= +105
o
C, Infinite Heat Sink. . . . . . . . . . . . . . . . . . . 11.25W
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150
o
C
Ambient Temperature Range . . . . . . . . . . . . . . . . -40
o
C to +125
o
C
Storage Temperature Range. . . . . . . . . . . . . . . . . . -40
o
C to +150
o
C
Lead Temperature (Soldering During) . . . . . . . . . . . . . . . . . . +265
o
C
1/16
1/32 inch (1.59
0.79mm) from case for 10s maximum
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
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Input (Supply) Voltage Operating
Range
V
IN
(Note 1); Also, See Figure 4 for
Expanding V
IN
Range
4
-
16
V
Input Voltage Threshold for Forward
Turn-On to Load
V
THD
Load = 1k
-
2.5
-
V
Input Voltage for Output Shutdown
V
SHSD
(Note 2)
16
-
19
V
Output Shutdown Leakage
I
LEAK1
V
IN
= 19V and 24V; Load = 1k
-
-
100
A
Output Cutoff Leakage
I
LEAK2
V
IN
= 16V; Control Open; Load = 1k
-
1
-
A
Thermal Shutdown Temperature
T
SD
-
150
-
o
C
Maximum Output Transient Pulse
Current
I
OUT
(Tran)
V
IN
=
90V for 15ms, V
OUT
= 14V
-20
-
+20
mA
Maximum Control Transient Pulse
Current
I
CON
(Tran)
V
IN
=
90V for 15ms, V
OUT
= 14V
-50
-
+50
mA
Short Circuit Current
I
SC
1
-
2
A
Input-to-Output Voltage Drop
V
IN
= 4V, I
OUT
= 175mA
-
-
0.25
V
V
IN
= 9V, I
OUT
= 500mA
-
-
0.65
V
V
IN
= 16V, I
OUT
= 800mA
-
-
1.05
V
V
IN
= 16V, I
OUT
= 1A
-
0.8
-
V
Control Current
I
CON
V
IN
= 16V, I
OUT
= 100mA
-
-
25
mA
V
IN
= 16V, I
OUT
= 800mA
-
-
50
mA
V
IN
= 16V, I
OUT
= 1A
-
50
-
mA
Turn ON (Rise Time);
"Pass-Thru" Mode
t
ON
Switch V
IN
0V(GND) to 5.5V; Mea-
sure V
OUT
(to 90%); Load = 1k
(Note 3)
-
-
20
s
Turn OFF (Fall Time);
"Pass-Thru" Mode
t
OFF
Switch V
IN
5.5V to 0V(GND); Mea-
sure V
OUT
(to 90%); Load = 1k
(Note 3)
-
-
20
s
Turn ON (Rise Time);
High Pass Switch Mode
t
ON
See Figure 3 and Figure 4 (Note 3)
-
15
-
s
Turn OFF (Fall Time);
High Pass Switch Mode
t
OFF
See Figure 3 and Figure 4 (Note 3)
-
15
-
s
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,
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
) (
JC
) for an infinite Heat Sink.
Derating from 150
o
C is based on the reciprocal of thermal resistance,
JC
+
HS
. For example: Where
JC
= 4
o
C/W and given
HS
= 6
o
/W
as the thermal resistance of an external Heat Sink, the junction-to-air thermal resistance,
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.
9-24
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).
FIGURE 1. TYPICAL APPLICATION OF THE HIP1090 AS A TRANSIENT SUPPRESSOR IN A "PASS-THRU" MODE
FIGURE 2. TYPICAL APPLICATIONS OF THE HIP1090 AS A TRANSIENT SUPPRESSOR IN A HIGH PASS SWITCH MODE
BASE
CURRENT
LIMIT
2
V
CON
(CONTROL OR GND)
R
S
3
V
OUT
CURRENT
AMPLIFIER
OVER-
VOLTAGE
SHUTDOWN
V
CE
SAT
DETECTOR
THERMAL
LIMIT
1
V
IN
V
BATT
SWITCH
INPUT
0.47
F
LAMP
RADIO
DASH PANEL LOAD
TO OTHER
LIGHTS
AND
INSTRUMENTS
BASE
CURRENT
LIMIT
2
V
CON
(CONTROL)
R
S
3
V
OUT
CURRENT
AMPLIFIER
OVER-
VOLTAGE
SHUTDOWN
V
CE
SAT
DETECTOR
THERMAL
LIMIT
1
V
IN
V
BATT
INPUT
0.47
F
LOAD
SWITCH
OFF
TO
1000
F
NOTE:
V
LOAD
= V
BATT
- V
SAT
V
SAT
TYP < 0.8V at 1A
ON
9-25
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 2k
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).
FIGURE 3. TYPICAL ON-OFF SWITCHING CHARACTERISTIC
OF THE HIP1090 USING AN NPN TRANSISTOR TO
SWITCH THE V
CON
INPUT TERMINAL
HIP1090
V
CON
V
OUT
V
IN
+16V
1k
2k
2N5320
(CONTROL PIN)
(OUTPUT)
(SUPPLY INPUT)
OR EQUIVALENT
V
B
15
s
15
s
15
10
5
0
V
OUT
V
B
ON
OFF
T
ON
T
OFF
ON
OFF
24
OPTIONAL
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.
FIGURE 4. A TYPICAL APPLICATION CIRCUIT THAT USES A
ZENER TO THE V
CON
TRANSISTOR SWITCH TO
RAISE THE OVER-VOLTAGE SHUTDOWN
THRESHOLD
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 ~0.5
s.
The CA3273 has a higher transient suppression threshold.
HIP1090
V
CON
V
OUT
V
IN
+24V
1k
2N5320
(OUTPUT)
(SUPPLY INPUT)
OR EQUIVALENT
ON
OFF
24
10V
2k
OPTIONAL
9-26
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.
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Intersil Corporation
P. O. Box 883, Mail Stop 53-204
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TEL: (407) 727-9207
FAX: (407) 724-7240
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Taipei, Taiwan
Republic of China
TEL: (886) 2 2716 9310
FAX: (886) 2 2715 3029
HIP1090
Typical Performance Curves
FIGURE 5. CONTROL (QUIESCENT) CURRENT CHARACTER-
ISTIC WITH LOAD
FIGURE 6. CONTROL (QUIESCENT) CURRENT CHARACTER-
ISTIC WITH NO LOAD
FIGURE 7. SATURATION (V
IN
- V
OUT
) CHARACTERISTIC
V
IN
SUPPLY VOLTAGE (V)
50
40
30
20
10
0
CONTROL CURRENT (PIN 2) (mA)
0
5
10
15
20
T
A
= +25
o
C
R
LOAD
= 16
60
V
CON
= GND
V
IN
SUPPLY VOLTAGE (V)
25
20
15
10
5
0
0
5
10
15
20
30
CONTROL CURRENT (PIN 2) (mA)
T
A
= +25
o
C
V
OUT
OPEN
V
CON
= GND
V
SA
T
= (V
IN
- V
OUT
) VOL
T
AGE (mV)
1000
800
600
400
200
0
LOAD CURRENT (A)
0
0.5
1.0
1.5
T
A
= +25
o
C
R
LOAD
= 16
V
CON
= GND
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