The EL7156 high performance pin driver with three-state is
suited to many ATE and level-shifting applications. The 3.5A
peak drive capability makes this part an excellent choice
when driving high capacitance loads.
The output pin OUT is connected to input pins VH or VL
respectively, depending on the status of the IN pin. When the
OE pin is active low, the output is placed in the three-state
mode. The isolation of the output FETs from the power
supplies enables VH and VL to be set independently,
enabling level-shifting to be implemented. Related to the
EL7155, the EL7156 adds a lower supply pin VS- and makes
VL an isolated and independent input. This feature adds
applications flexibility and improves switching response due
to the increased enhancement of the output FETs.
This pin driver has improved performance over existing pin
drivers. It is specifically designed to operate at voltages
down to 0V across the switch elements while maintaining
good speed and ON-resistance characteristics.
Available in the 8 Ld SOIC and 8 Ld PDIP packages, the
EL7156 is specified for operation over the full -40°C to
+85°C temperature range.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
*Pb-free PDIPs can be used for through hole wave solder processing
only. They are not intended for use in Reflow solder processing
applications.
MARKING
EL7156CN Z-8 Ld PDIP*
7156CSZ-8 Ld SOIC
7156CSZ7”8 Ld SOIC
7156CSZ13”8 Ld SOIC
TA PE &
REELPACKAGE
(Pb-free)
(Pb-free)
(Pb-free)
(Pb-free)
PKG.
DWG. #
MDP0031
MDP0027
MDP0027
MDP0027
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
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.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
*Pb-free PDIPs can be used for through hole wave solder
processing only. They are not intended for use in Reflow solder
processing applications.
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
θ
JA
= 100°C/W
85
MAX TJ = +125°C
125150
1.0
PDIP8
0.8
0.6
SOIC8
0.4
θ
= 160°C/W
0.2
POWER DISSIPATION (W)
0
JA
2510075050
AMBIENT TEMPERATURE (°C)
FIGURE 1. PACKAGE POWER DISSIP A TION vs AMBIENT
TEMPERATURE
T = +25°C
2.0
1.6
1.2
ALL INPUTS = GND
0.8
SUPPLY CURRENT (mA)
0.4
ALL INPUTS = VS+
T = +25°C
1.8
HIGH THRESHOLD
HYSTERESIS
LOW THRESHOLD
15510
SUPPLY VOLTAGE (V)
INPUT VOLTAGE (V)
1.6
1.4
1.2
1.0
FIGURE 2. INPUT THRESHOLD vs SUPPLY VOLTAGE
I
= 200mA, T = +25°C, VS+ = VH, VS- = VL = 0V
OUT
6
V
- V
OUT
5
4
V
- V
OUT
3
2
“ON” RESISTANCE (Ω)
1
H
L
0
5
SUPPLY VOLTAGE (V)
10
15
FIGURE 3. QUIESCENT SUPPLY CURRENT vs SUPPLY
VOLTAGE
CL = 2000pF, T = +25°C
30
25
t
R
RISE/FALL TIME (ns)
20
t
15
10
F
510
SUPPLY VOLTAGE (V)
t
R
t
I
15
FIGURE 5. RISE/FALL TIME vs SUPPLY VOLTAGE
0
7.51512.5510
SUPPLY VOLTAGE (V)
FIGURE 4. “ON”-RESISTANCE vs SUPPLY VOLTAGE
CL = 2000pF, VS+ = 15V
20
18
t
F
16
14
t
RISE/FALL TIME (ns)
12
10
-50
0
TEMPERATURE (°C)
R
50
100
FIGURE 6. RISE/FALL TIME vs TEMPERATURE
150
4
FN7280.3
May 2, 2007
Typical Performance Curves (Continued)
www.BDTIC.com/Intersil
EL7156
CL = 2000pF, T = +25°C
17
DELAY TIME (ns)
15
13
t
11
9
d-1
5
SUPPLY VOLTAGE (V)
t
d-2
10
15
FIGURE 7. PROPAGATION DELAY vs SUPPLY VOLTAGE
VS+ = +15V, T = +25°C
70
60
50
40
t
30
20
RISE/FALL TIME (ns)
10
F
t
R
CL = 2000pF, VS+ = 15V
14
12
10
DELAY TIME (ns)
8
6
-252575100
t
d-2
0125-5050
TEMPERATURE (°C)
t
d-1
FIGURE 8. PROPAGATION DELAY vs TEMPERATURE
+ = VH = 15V, VS- = VL = 0V, T = +25°C, f = 20kHz
V
S
5
4
3
2
1
SUPPLY CURRENT (mA)
0
1001000
LOAD CAPACITANCE (pF)
10000
FIGURE 9. RISE/FALL TIME vs LOAD CAPACITANCE
+ = VH, VS -= VL = 0V, CL = 0pF
V
S
14
12
10
8
6
4
SUPPLY CURRENT (mA)
2
0
1M8M6M2M
VS+ = VH = 15V
FREQUENCY (Hz)
VS+ = VH = 10V
VS+=VH
VS+ = VH = 5V
7M10M1M4M
9M6M3M
FIGURE 11. SUPPLY CURRENT vs FREQUENCY
0
100100010000
LOAD CAPACITANCE (pF)
FIGURE 10. SUPPLY CURRENT vs LOAD CAPACITANCE
+ = VH, VS- = VL = 0V, CL = 0pF
V
S
30
25
20
15
(mA)
VH
I
10
5
0
1M8M6M2M
FIGURE 12. V
VS+ = VH = 15V
FREQUENCY (Hz)
SUPPLY CURRENT vs FREQUENCY
H
VS+ = VH = 10V
VS+=VH
VS+ = VH = 5V
7M10M1M4M
9M6M3M
5
FN7280.3
May 2, 2007
EL7156
www.BDTIC.com/Intersil
Truth Table
OEINOUT
00Three-state
01Three-state
10V
11V
Timing Diagram
INPUT
INVERTED
OUTPUT
2.5V
0
90%
10%
5V
Operating Voltage Range
PINMINMAX
- to GND-50
V
S
+ to VS-516.5
V
S
to V
H
L
V
H
L
+ to V
V
S
H
+ to GND516.5
V
S
VL to VS-016.5
Three-state OutputV
t
d1
t
d2
016.5
016.5
L
V
H
Standard Test Configuration
+
V
S
VS+
10kΩ
0.1µF4.7µF
OE
GND
t
F
1
L
O
2
G
I
IN
3
C
4
EL7156
8
7
6
5
t
R
0.1µF4.7µF
2000pF
0.1µF4.7µF
0.1µF4.7µF
V
H
OUT
V
-
-
L
VS-
6
FN7280.3
May 2, 2007
EL7156
www.BDTIC.com/Intersil
Pin Descriptions
PINNAMEFUNCTIONEQUIVALENT CIRCUIT
1VS+Positive Supply Voltage
2OEOutput Enable
INPUT
3INInputReference Circuit 1
4GNDGround
5VS-Negative Supply Voltage
6VLLower Output Voltage
7OUTOutput
VS+
V
VS-
-
S
CIRCUIT 1
V
H
+
V
S
8VHHigh Output Voltage
Block Diagram
VS+
GND
V
OUT
V
-
S
VS-
V
CIRCUIT 2
OE
IN
LEVEL
SHIFTER
THREE-
STATE
CONTROL
V
H
OUT
L
-
V
S
7
V
L
FN7280.3
May 2, 2007
EL7156
www.BDTIC.com/Intersil
Applications Information
Product Description
The EL7156 is a high performance 40MHz pin driver. It
contains two analog switches connecting VH and VL to OUT .
Depending on the value of the IN pin, one of the two
switches will be closed and the other switch open. An output
enable (OE) is also supplied which opens both switches
simultaneously.
Due to the topology of t he EL7156, both the VH and VL pins
can be connected to any voltage between the VS+ and VSpins, but VH must be greater than VL in order to prevent
turning on the body diode at the output stage.
The EL7156 is available in both the 8 Ld SOIC and the 8 Ld
PDIP packages. The relevant package should be chosen
depending on the calculated power dissipation.
Three-state Operation
When the OE pin is low, the output is three-state (floating).
The output voltage is the parasitic capacitance’s voltage. It
can be any voltage between VH and VL, depending on the
previous state. At three-state, the output voltage can be
pushed to any voltage between VH and VL. The output
voltage can’t be pushed higher than VH or lower than VL
since the body diode at the output stage will turn on.
Supply Voltage Ra nge and Input Compatibility
The EL7156 is designed for operation on supplies from 5V to
15V (4.5V to 16.5V maximum). “Operating Voltage Range”
on page 6 shows the specifications for the relationship
between the VS+, VS-, VH, VL, and GND pins.
All input pins are compatible with both 3V and 5V CMOS
signals. With a positive supply (V
also compatible with TTL inputs.
Power Supply Bypassing
When using the EL7156, it is very important to use adequate
power supply bypassing. The high switching currents
developed by the EL7156 necessitate the use of a bypass
capacitor between the supplies (VS+ and VS-) and GND
pins. It is recommended that a 2.2µF tantalum capacitor be
used in parallel with a 0.1µF low-inductance ceramic MLC
capacitor. These should be placed as close to the supply
pins as possible. It is also recommended that the VH and VL
pins have some level of bypassing, especially if the EL7156
is driving highly capacitive loads.
Power Dissipation Calculation
When switching at high speeds, or driving heavy loads, the
EL7156 drive capability is limited by the rise in die
temperature brought about by internal power dissipation. For
reliable operation, die temperature must be kept below
T
(+125°C). It is necessary to calculate the power
JMAX
dissipation for a given application prior to selecting the
package type.
+) of 5V, the EL7156 is
S
Power dissipation may be calculated:
PDVS(IS)CVS(V
S
2
f)C
+()V
INTCL
OUT
2
f××[]+××+×=
(EQ. 1)
where:
V
is the total power supply to the EL7156 (from VS+ to
S
GND)
V
is the swing on the output (VH to VL)
OUT
is the integral capacitance due to VS+
C
VS
is the integral load capacitance due to V
C
INT
H
IS is the quiescent supply current (3mA max)
f is frequency
TABLE 1. INTEGRAL CAPACITANCE
+ = VH(V)CVS(pF)C
V
S
580120
1085145
1590180
INT
(pF)
Having obtained the application’s power dissipation, a
maximum package thermal coefficient may be determined,
to maintain the internal die temperature below T
T
–
JMAXTMAX
-----------------------------------------
=
θ
JA
PD
JMAX
:
(EQ. 2)
where:
T
is the maximum junction temperature (+125°C)
JMAX
is the maximum operating temperature
T
MAX
PD is the power dissipation calculated above
thermal resistance on junction to ambient
θ
JA
is 160°C/W for the SOIC8 package and 100°C/W for the
θ
JA
PDIP8 package when using a standard JEDEC JESD51-3
single-layer test board. If T
is greater than +125°C
JMAX
when calculated using Equation 2, then one of the following
actions must be taken:
Reduce θ
the system by designing more heat-sinking
JA
into the PCB (as compared to the standard JEDEC
JESD51-3).
Use the PDIP8 instead of the SOIC8 package.
De-rate the application either by reducing the switching
frequency, the capacitive load, or the maximum operating
(ambient) temperature (T
MAX
).
8
FN7280.3
May 2, 2007
Plastic Dual-In-Line Packages (PDIP)
www.BDTIC.com/Intersil
EL7156
SEATING
PLANE
D
A2
A
L
L
e
b
A1
NOTE 5
c
E
eA
eB
N
PIN #1
E1
INDEX
12N/2
MDP0031
PLASTIC DUAL-IN-LINE PACKAGE
INCHES
SYMBOL
A0.2100.2100.2100.2100.210MAX
A10.0150.0150.0150.0150.015MIN
A20.1300.1300.1300.1300.130±0.005
b0.0180.0180.0180.0180.018±0.002
b20.0600.0600.0600.0600.060+0.010/-0.015
c0.0100.0100.0100.0100.010+0.004/-0.002
D0.3750.7500.7500.8901.020±0.0101
E0.3100.3100.3100.3100.310+0.015/-0.010
E10.2500.2500.2500.2500.250±0.0052
e0.1000.1000.1000.1000.100Basic
eA0.3000.3000.3000.3000.300Basic
eB0.3450.3450.3450.3450.345±0.025
L0.1250.1250.1250.1250.125±0.010
N814161820Reference
NOTES:
1. Plastic or metal protrusions of 0.010” maximum per side are not included.
2. Plastic interlead protrusions of 0.010” maximum per side are not included.
3. Dimensions E and eA are measured with the leads constrained perpendicular to the seating plane.
4. Dimension eB is measured with the lead tips unconstrained.
5. 8 and 16 lead packages have half end-leads as shown.
TOLERANCENOTESPDIP8PDIP14PDIP16PDIP18PDIP20
b2
Rev. C 2/07
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software 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 implic atio n or other wise u nde r any p a tent or patent rights of Intersil or it s sub sidi aries.
For information regarding Intersil Corporation and its products, see www.intersil.com
9
FN7280.3
May 2, 2007
Small Outline Package Family (SO)
www.BDTIC.com/Intersil
A
D
NN
(N/2)+1
EL7156
h X 45°
PIN #1
E
C
SEATING
PLANE
0.004 C
E1
B
0.010BM CA
I.D. MARK
1
e
0.010BM CA
(N/2)
c
SEE DETAIL “X”
L1
H
A2
GAUGE
PLANE
A1
b
DETAIL X
L
4° ±4°
MDP0027
SMALL OUTLINE PACKAGE FAMILY (SO)
INCHES
SO16
SYMBOL
A0.0680.0680.0680.1040.1040.1040.104MAX-
A10.0060.0060.0060.0070.0070.0070.007±0.003-
A20.0570.0570.0570.0920.0920.0920.092±0.002-
b0.0170.0170.0170.0170.0170.0170.017±0.003-
c0.0090.0090.0090.0110.0110.0110.011±0.001-
D0.1930.3410.3900.4060.5040.6060.704±0.0041, 3
E0.2360.2360.2360.4060.4060.4060.406±0.008-
E10.1540.1540.1540.2950.2950.2950.295±0.0042, 3
e0.0500.0500.0500.0500.0500.0500.050Basic-
L0.0250.0250.0250.0300.0300.0300.030±0.009-
L10.0410.0410.0410.0560.0560.0560.056Basic-
h0.0130.0130.0130.0200.0200.0200.020Reference-
N8141616202428Reference-
NOTES:
1. Plastic or metal protrusions of 0.006” maximum per side are not included.
2. Plastic interlead protrusions of 0.010” maximum per side are not included.
3. Dimensions “D” and “E1” are measured at Datum Plane “H”.
4. Dimensioning and tolerancing per ASME Y14.5M-1994
(0.150”)
SO16 (0.300”)
(SOL-16)
SO20
(SOL-20)
SO24
(SOL-24)
SO28
(SOL-28)
TOLERANCENOTESSO-8SO-14
A
0.010
Rev. M 2/07
10
FN7280.3
May 2, 2007
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.