Page 1
EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
EL7243C January 1996 Rev B
Features
# Logic AND/NAND input
# 3V and 5V Input compatible
# Clocking speeds up to 20 MHz
# 20 ns Switching/delay time
# 2A Peak drive
# Isolated drains
# Low output impedance
# Low quiescent current
# Wide operating voltageÐ
4.5V– 16V
Applications
# CCD Drivers
# Short circuit protected switching
# Under-voltage shut-down circuits
# Switch-mode power supplies
# Motor controls
# Power MOSFET switching
# Switching capacitive loads
# Shoot-thru protection
# Latching drivers
Ordering Information
Part No. Temp. Range Pkg. Outline
EL7243CMb40§C to 20-Lead MDP0027*
a
85§C Thermal SOL
General Description
The EL7243C dual input, 2-channel driver achieves the same
excellent switching performance of the EL7212 family while
providing added flexibility. The power package makes this part
extremely well suited for high frequency and heavy loads as in
CCD applications. The 2-input logic and configuration is applicable to numerous power MOSFET drive circuits. As with other Elantec drivers, the EL7243C is excellent for driving large
capacitive loads with minimal delay and switching times.
‘‘Shoot-thru’’ protection and latching circuits can be implemented by simply ‘‘cross-coupling’’ the 2-channels.
Connection Diagram
20-Lead Thermal SOL Package
EL7243C
Ý
7243– 1
Note 1: Pins 4 – 7 and 14 – 17 are electrically connected.
Note 2: Output pins must be tied together.
Ý
Manufactured under U.S. Patent Nos. 5,334,883,
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a ‘‘controlled document’’. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
©
1994 Elantec, Inc.
5,341,047
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EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
Absolute Maximum Ratings
Supply (Vato Gnd) 16.5V
Input Pins
b
0.3V toa0.3V above V
Combined Peak Output Current 4A
Storage Temperature Range
Ambient Operating Temperature
Important Note:
All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually
performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test
equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore T
Test Level Test Procedure
I 100% production tested and QA sample tested per QA test plan QCX0002.
II 100% production tested at T
III QA sample tested per QA test plan QCX0002.
IV Parameter is guaranteed (but not tested) by Design and Characterization Data.
V Parameter is typical value at T
T
MAX
and T
MIN
DC Electrical Characteristics
Parameter Description
b
65§Ctoa150§C
b
40§Ctoa85§C
e
25§C and QA sample tested at T
A
per QA test plan QCX0002.
e
25§C for information purposes only.
A
e
T
A
Conditions Level
Input
V
I
V
I
V
IH
IH
IL
IL
HVS
Logic ‘‘1’’ Input Voltage 2.4 I V
Logic ‘‘1’’ Input Current
@
V
DD
Logic ‘‘0’’ Input Voltage 0.8 I V
Logic ‘‘0’’ Input Current
@
0V 0.1 10 I mA
Input Hysteresis 0.3 V V
Output
R
OH
R
OL
I
PK
I
DC
Pull-Up Resistance I
Pull-Down Resistance I
OUT
OUT
Peak Output Current Source 2
Sink 2
Continuous Output Current Source/Sink 200 I mA
Power Supply
I
S
V
S
Power Supply Current Inputs High 1 2.5 I mA
Operating Voltage 4.5 16 I V
Operating Junction Temperature 125
a
Power Dissipation
20-pin ‘‘Batwing’’ SOIC 1500 mW
e
T
J
e
25§C,
A
25§C, V
Test
e
15V unless otherwise specified
DD
Min Typ Max
Test
0.1 10 I mA
eb
100 mA 3 6 I X
ea
100 mA 4 6 I X
IV A
§
e
TA.
C
Units
C
TDis3.1in
2
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EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
AC Electrical Characteristics
Parameter Description
Switching Characteristics
t
R
t
F
t
D-ON
t
D-OFF
Rise Time C
Fall Time C
Turn-On Delay Time 20 25 IV ns
Turn-Off Delay Time 20 25 IV ns
Timing Table
e
T
25§C, Ve15V unless otherwise specified
A
Test
Conditions Level
e
500 pF 10
L
e
C
1000 pF 20
L
e
500 pF 10
L
e
C
1000 pF 20
L
Min Typ Max
Test
Standard Test Configuration
Pins 19, 20 connected to Va.
7243– 2
Units
IV ns
IV ns
TDis1.5in
7243– 3
Simplified Schematic
3
7243– 4
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EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
Typical Performance Curves
Max Power/Derating Curves
Input Current vs Voltage
7243– 5
Switch Threshold vs
Supply Voltage
Peak Drive vs Supply Voltage
7243– 6
Quiescent Supply Current
7243– 7
7243– 8
‘‘ON’’ Resistance vs Supply Voltage
7243– 9
4
7243– 10
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EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
Typical Performance Curves
Average Supply Current vs
Voltage and Frequency
Rise/Fall Time vs Load
Ð Contd.
7243– 11
Average Supply Current
vs Capacitive Load
Rise/Fall Time vs Supply Voltage
7243– 12
7243– 13
7243– 14
5
Page 6
EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
Typical Performance Curves
Rise/Fall Time vs Temperature
Ð Contd.
7243– 15
Delay vs Temperature
Propagation Delay vs Supply Voltage
7243– 16
7243– 17
6
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Dual Input, High Speed, Dual Channel CCD Driver
Applications Information
EL7243C
Typical CCD Configuration
7243– 18
EL7243 Macromodel
7243– 19
7
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EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
EL7243 Macromodel
* EL7243 Macromodel
* Revision A, January 1996
* Connections Gnd
*
*
*
*
.subckt M7243 1 2 3 8 10
V1 12 1 1.6
R1 13 15 1k
R2 14 15 5k
R5 11 12 100
C1 15 1 43.3pF
D1 14 13 dmod
X1 13 11 2 1 comp1
X2 16 12 15 1 comp1
V2 22 1 1.6
R6 23 25 1K
R7 24 25 5K
R8 21 22 100
C2 25 1 43.3pF
D2 24 23 dmod
X3 23 21 3 1 comp1
X4 26 25 22 1 comp1
X5 16 26 17 1 And-gate
sp 10 8 17 1 spmod
sn81171snmod
g1 11 1 13 1 938u
g2 21 1 23 1 938u
.model dmod d
.model spmod vswitch ron
.model snmod vswitch ron
.ends M7243
* AND Gate Subcircuit*
.subckt And-gate inp1 inp2 out-AS Vss-A
el out-A Vss-A table
Rout-a out-a vss-a 10 meg
rinpa inp1 vss-a 10 meg
rinpb inp2 vss-a 10 meg
.ends and-gate
* Comparator Subcircuit *
.subckt comp1 out inp inm vss
el out vss table
Rout out vss 10meg
Rinp inp vss 10meg
Rinm inm vss 10meg
.ends omp1
À
(v(inp)bv(inm))*5000Óe(0,0) (3.2, 3.2)
l
ll
lll
llll
e
e
À
v(inp1)*v(inp2)Óe(0, 3.2) (3.2, 0)
a
Inp
3 roffe2meg vone1 voffe1.5
4 roffe2meg vone3 voffe2
Inp
b
out
V
CC
TABWIDE
TDis6.2in
8
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EL7243C
Dual Input, High Speed, Dual Channel CCD Driver
EL7243CJanuary 1996 Rev B
General Disclaimer
Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes
in the circuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any
circuits described herein and makes no representations that they are free from patent infringement.
WARNING Ð 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 in-
Elantec, Inc.
1996 Tarob Court
Milpitas, CA 95035
Telephone: (408) 945-1323
(800) 333-6314
Fax: (408) 945-9305
European Office: 44-71-482-4596
tended to support 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 application of Elantec, Inc. products
in Life 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 cover injury to persons or property or other consequential damages.
Printed in U.S.A.12
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