Datasheet EL7155CS-T7, EL7155CS-T13, EL7155CS, EL7155CN Datasheet (ELANT)

EL7155C

High-Performance Pin Driver

EL7155C

Features

• Clocking Speeds up to 40MHz

• 15ns tr/tf at 2000pF C

LOAD

• 0.5ns Rise and Fall Times
Mismatch

•0.5ns T

ON-TOFF

Prop Delay

Mismatch

• 3.5pF Typical Input Capacitance

• 3.5A Peak Drive

• Low on Resistance of 3.5Ω

• High Capacitive Drive Capability

• Operates from 4.5V up to 18V

Applications

• ATE/Burn-in Testers

• Level Shifting

• IGBT Drivers

• CCD Drivers

Ordering Information

Part No. Package Tape & Reel Outline #

EL7155CN 8-Pin DIP - MDP0031 EL7155CS 8-Pin SOIC - MDP0027 EL7155CS-T7 8-Pin SOIC 7” MDP0027 EL7155CS-T13 8-Pin SOIC 13” MDP0027

General Description

The EL7155C high-performance pin driver with tri-state is suited to
many ATE and level-shifting applications. The 3.5A peak drive capa­bility makes this part an e xcellent choice when driving h igh
capacitance loads.

Output pins OUTH and OUTL are connected to input pins VH and VL
respectively, depending on the stat us of th e IN pin. One o f the out put
pins is always in tri-state, except when the OE pin is active low, in
which case both outputs are in tri-state mode. The isolatio n of the ou t­put FETs from the power supplies enables VH and VL to be set
independently, enablin g leve l-sh iftin g to be impl emen ted .

This pin driver has improved performan ce 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-Pin SOIC and 8-Pin PDIP packages, the EL7155C
is specified for operation over the -40°C to +85°C temperature range.

Pin Layout Diagram

© 2000 Elantec Semiconductor, Inc.

VS+

OE

IN

GND

1

L

2

o
g

i

3

c

4

8-Pin PDIP/SOIC

8

VH

7

OUTH

6

OUTL

5

VL

September 5, 2000

EL7155C

High-Performance Pin Driver

EL7155C

Absolute Maximum Ratings (T

Absolute maximum ratings are those values beyond which the device
could be permanently damaged. Absolute maximum ratings are stress
ratings only and functional device operation is not implied.

Supply Voltage (V
Input Voltage VL -0.3V, VL+ +0.3V
Continuous Output Current 200mA

+ to VL) +18V

S

= 25°C)

A

Storage Temperature Range -65°C to +150°C
Ambient operating Temperature -40°C to +85°C
Operating Junction Temperature 125°C
Power Dissipation see curves
Maximum ESD 2kV

Important Note:
All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the

specified temperature and are pulsed tests, therefore: T

= TC = TA.

J

Electrical Characteristics

VS+ = +15V, VH = +15V, VL = 0V, TA = 25°C, unless otherwise specified.

Parameter Description Condition Min Typ Max Unit

Input

V

IH

I

IH

V

IL

I

IL

C

IN

R

IN

Output

R

OVH

R

OVL

I

OUT

I

PK

I

DC

Power Supply

I

S

I

VH

Switching Characteristics

t

R

t

F

t

RFdelta

t

D-1

t

D-2

t

Ddelta

t

D-3

t

D-4

Logic ‘1’ Input Voltage 2.4 V
Logic ‘1’ Input Current VIH = VS+0.110µA
Logic ‘0’ Input Voltage 0.8 V
Logic ‘0’ Input Current VIL = 0V 0.1 10 µA
Input Capacitance 3.5 pF
Input Resistance 50 MΩ

ON Resistance VH to OUTH I
ON Resistance VL to OUTL I

= -200 mA 2.7 4.5 Ω

OUT

= +200 mA 3.5 5.5 Ω

OUT

Output Leakage Current OE = 0V, OUTH = VL, OUTL = VS+0.110µA
Peak Output Current

(linear resistive operation)

Source 3.5 A
Sink 3.5 A

Continuous Output Current Source/Sink 200 mA

Power Supply Current Inputs = VS+1.33mA
Off Leakage at VH VH = 0V 4 10 µ A

Rise Time CL =2000 pF 14.5 ns Fall Time CL = 2000 pF 15 ns tR, tF Mismatch CL = 2000 pF 0.5 ns Turn-Off Delay Time CL = 2000 pF 9.5 ns Turn-On Delay Time CL = 2000 pF 10 ns t

Mismatch CL = 2000 pF 0.5 ns

D-1-tD-2

Tri-State Delay Enable 10 ns
Tri-State Delay Disable 10 ns

2

EL7155C

High-Performance Pin Driver

Electrical Characteristics

VS+ = +5V, VH = +5V, VL = -5V, TA = 25°C, unless otherwise specified.

Parameter Description Condition Min Typ Max Unit

Input

V

IH

I

IH

V

IL

I

IL

C

IN

R

IN

Output

R

OVH

R

OVL

I

OUT

I

PK

I

DC

Power Supply

I

S

I

VH

Switching Characteristics

t

R

t

F

t

RFdelta

t

D-1

t

D-2

t

Ddelta

t

D-3

t

D-4

Logic ‘1’ Input Voltage 2.0 V
Logic ‘1’ Input Current VIH = VS+0.110µA
Logic ‘0’ Input Voltage 0.8 V
Logic ‘0’ Input Current VIL = 0V 0.1 10 µ A
Input Capacitance 3.5 pF
Input Resistance 50 MΩ

ON Resistance VH to OUTH I
ON Resistance VL to OUTL I

= -200 mA 3.4 5 Ω

OUT

= +200 mA 4 6 Ω

OUT

Output Leakage Current OE = 0V, OUTH = VL, OUTL = VS+0.110µA
Peak Output Current

(linear resistive operation)

Source 3.5 A
Sink 3.5 A

Continuous Output Current Source/Sink 200 mA

Power Supply Current Inputs = VS+ 1 2.5 mA
Off Leakage at VH VH = 0V 4 10 µ A

Rise Time CL =2000 pF 17 ns Fall Time CL = 2000 pF 17 ns tR, tF Mismatch CL = 2000 pF 0 ns Turn-Off Delay Time CL = 2000 pF 11.5 ns Turn-On Delay Time CL = 2000 pF 12 ns t

Mismatch CL = 2000 pF 0.5 ns

D-1-tD-2

Tri-State Delay Enable 11 ns
Tri-State Delay Disable 11 ns

EL7155C

3

EL7155C

High-Performance Pin Driver

EL7155C

Typical Performance Curves

Max Power/Derating Curves

1W

8-Lead PDIP

800mW

600mW

8-Lead SO

400mW

Max Power (W)

200mW

2.0

1.6

1.2

0.8

Supply Current (mA)

0.4

θ

=160°C/W

JA

0

25 10075050

Quiescent Supply Current vs Supply Voltage
T=25°C

All Inputs = GND

0

5

Supply Voltage (V)

θ

Temperature (°C)

10

=100°C/W

JA

Max TJ=125°C

All Inputs = VS+

125 150

15

Input Threshold vs Supply Voltage
T=25°C

1.8

1.6

1.4

Input voltage (V)

1.2

1.0

“On” Resistance vs Supply Voltage
I

=200mA, T=25°C, VS+=VH, VL=0V

OUT

6

5

4

V

OUT

3

2

“On” Resistance (Ω)

1

0

High Threshold

Hysteresis

Low Threshold

Supply Voltage (V)

V

-VL

OUT

-VH

7.5 1512.5510
Supply Voltage (V)

15510

Rise/Fall Time vs Supply Voltage
CL=2000pF, T=25°C

30

25

20

Rise/Fall Time (ns)

15

10

5

t

F

t

R

10

Supply Voltage (V)

Rise/Fall Time vs Temperature
CL=2000pF, VS+=15V

20

18

16

t

I

t

R

15

14

Rise/Fall Time (n s)

12

10

-50

0

t

F

t

R

50

Temperature (°C)

100

150

4

Typical Performance Curves (cont.)

EL7155C

EL7155C

High-Performance Pin Driver

Propagation Delay vs Supply Voltage
C

=2000pF, T=25°C

L

17

15

13

Delay Time (ns)

11

70

60

50

40

30

Rise/Fall Time (ns)

20

10

t

D-1

9

5

Rise/Fall Time vs Load Capacitance
VS+=+15V, T=25°C

0

100

Propagation Delay vs Temperature
C

=2000pF, VS+=15V

L

14

t

D-2

10 0 125-50 50

Supply Voltage (V)

1000

Load Capacitance (pF)

15

t

F

t

R

10000

12

10

Delay Time (ns)

8

6

-25 25 75 100

Supply Current vs Load Capacitance

+=VH=15V, VL=0V, T=25°C, f=20kHz

V

S

5

4

3

2

Supply Current (mA)

1

0

100 1000

t

D-2

Temperature (°C)

Load Capacitance (pF)

t

D-1

10000

Supply Current vs Frequency
CL=1000pF, T=25°C

100

10

1.0

Supply Current (mA)

0.1

VS+=15V

VS+=10V

VS+=5V

1M 10M10k 100k

Frequency (Hz)

5

EL7155C

High-Performance Pin Driver

EL7155C

Truth Table

OE IN VH to OUTH OUTL to VS-

0 0 Open Open 0 1 Open Open 1 0 Closed Open 1 1 Open Closed

Timing Diagrams

Input

Inverted

Output

Standard Test Configuration

0

2.5V

90%

10%

Operating Volta ge Range

PIN MIN MAX

GND - VL -5 0

+ - VL 5 18

V

S

VH

- VL 0 18

- VH 0 18

V

S+

+ - GND 5 18

V

S

5V

t

D1

t

F

t

D2

t

R

VS+

VS+

4.7µ 0.1µ

10k

1

L

2

OE

IN

GND

o
g

i

3

c

4

EL7155C

8

7

6

5

0.1µ 4.7µ

2000p

0.1µ 4.7µ

VH

OUT

VL

-

6

High-Performance Pin Driver

Pin Descriptions

Pin Name Function Equivalent Circuit

1V
2 OE Output Enable

3 IN Input Same as Circuit 1
4 GND Ground
5 VL Negative Supply Voltage
6 OUTL Lower Switch Output

+ Positive Supply Voltage

S

VS+

INPUT

EL7155C

EL7155C

VL

Circuit 1

VS+

7 OUTH Upper Switch Output

8 VH Upper Output Voltage

OUTL

VL

Circuit 2

VH

VS+

VL

OUTH

VL

Circuit 3

7

EL7155C

High-Performance Pin Driver

EL7155C

Block Diagram

VS+

IN

GND

VL

Level

Shifter

Application Information

Product Description

The EL7155C i s a high p er forma nce 40 MH z p in d r iver .
It contains two analog switches connecting VH to
OUTH and VL to OUTL. Depending on the value of the
IN pin, one of the two switches will be close d and the
other switch open. An output enable (OE) is also sup­plied which opens both switches simultan e ously.

Due to the topology of the EL7155C, VL should always
be connected to a voltage equal to, or lower than GND.
VH can be connected to any voltage between VL and the
positive supply, V

+.

S

OE

3-State
Control

VH

OUTH
OUTL

The EL7155C is available in both the 8-pin SOIC and
the 8-pin PDIP packages. The relevant package should
be chosen depending on the calculated power
dissipation.

Supply Voltage Range and Input Compatibility

The EL7155C is designed for operation on supplies from
5V to 15V (4.5V to 18V maximum). The table on page 6
shows the specifications for the rel ation ship b etween th e

+, VH, VL, and GND pins.

V

S

All input pins are compatible with both 3V and 5V
CMOS signals. With a positive supply (V
EL7155C is also compatible with TTL inputs.

+) of 5V, the

S

8

Power Supply Bypassing

When using the EL7155C, it is very important to use
adequate power supp ly bypa ssing. The high switchi ng
currents developed by the EL7155C necessitate the use
of a bypass capacitor between the V

+ and GND pins. It

S

is recommended that a 2.2µF tantalum capacitor be used
in parallel with a 0.1µ F lo w-inductance ceramic MLC
capacitor. These shou ld b e pl aced a s cl ose t o t he su pp ly
pins as possible. It is also recommended that the VH and
VL pins have some level of bypassing, especially if the
EL7155C is driving highly capacitive loads.

Power Dissipation Calculation

When switchin g at high speed s, or driv ing heavy loads,
the EL7155C drive capab ility is li mited b y the rise in die
temperature brought about by internal power dissipation.
For reliable operation die temperature must be kept
below T
power dissipation for a given application prior to select­ing the package type.

Power dissipation may be calculated:

where:

• V

S

V

S

• V

out

• C

L

• C

INT

(125°C). It is necessary to calculate the

jmax

PD VS( IS) C

( V

INT

2

f) CL( V

S

OUT

2

f)××+××+×=

is the total power supply to the EL7155C (from
+ to GND),

is the swing on the output (VH - VL),

is the load capacitance,

is the internal load capacitance (50pF max.),

EL7155C

High-Performance Pin Driver

• I

is the quiescent supply current (3mA max.) and

S

• f is frequency
Having obtained the application’s power dissipation, a

maximum package thermal coefficient may be deter­mined, to maintain the internal die temperature below

:

T

jmax

T

( T

jmax

θ

--------------------------------------=

ja

where:

• T

is the maximum junction t emperature (125°C),

jmax

• T

is the maximum operating temperature,

max

• PD is the power dissipation calculated above,

• θja thermal resistance on junction to ambient.

θ

is 160°C/W for the SO8 package and 100°C/W for

ja

the PDIP8 package when using a standard JEDEC
JESD51-3 single-layer test board. If T
125°C when calculated using the equation ab ove, 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 SO8 package

• De-rate the application either by reducing the switch-

ing frequency, the capacitive load, or the maximum
operating (ambient) temperature (T

PD

max

)–

is greater than

jmax

)

max

EL7155C

9

EL7155C

High-Performance Pin Driver

EL7155C

General Disclaimer

Specifications contained in this data sheet are in effect as of the publicat ion date shown. Elantec, Inc. re serves the r ight to make changes in th e cir­cuitry or specifications cont ained herein at a ny time without notice. Elantec , Inc. assumes no res ponsibili ty for t he us e of an y circuits descr ibed
herein and makes no representations that they are free from patent infringement.

WARNING - Life Support Policy

Elantec, Inc. products are not authorized for and should not be used
within Life Support Systems without the specific written consent of
Elantec, Inc. Life Support systems are equipment intend ed to sup-

Elantec Semiconductor, Inc.

675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: [phone]

Fax: [phone]
European Office: [phone]
Japan Technical Center: [phone]

September 5, 2000

(888) ELANTEC

port or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
expected to result in significant personal injury or death. Users con­templating applicatio n of Elantec, Inc. P roducts in Li fe Support
Systems are requested to contact Elantec, Inc. factory headquarters
to establish suitable terms & conditions for these applications. Elan­tec, Inc. ’s warranty is limited to replacement of defective
components and does not cov er injury to persons or prop erty or
other consequential damages.

10

Printed in U.S.A.