Page 1
EL7242C/EL7252C
Dual Input, High Speed, Dual Channel Power MOSFET Driver
EL7242C/EL7252C January 1996 Rev. B
Features
# Logic AND/NAND input
# 3V and 5V Input compatible
# Clocking speeds up to 10 MHz
# 20 ns Switching/delay time
# 2A Peak drive
# Isolated drains
# Low output impedance
# Low quiescent current
# Wide operating voltageÐ
4.5V– 16V
Applications
# 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
EL7242CNb40§Ctoa85§C 8-Pin P-DIP MDP0031
EL7242CSb40§Ctoa85§C 8-Pin SOIC MDP0027
EL7252CNb40§Ctoa85§C 8-Pin P-DIP MDP0031
EL7252CSb40§Ctoa85§C 8-Pin SOIC MDP0027
General Description
The EL7242C/EL7252C dual input, 2-channel drivers achieve
the same excellent switching performance of the EL7212 family
while providing added flexibility. The 2-input logic and configuration is applicable to numerous power MOSFET drive circuits.
As with other Elantec drivers, the EL7242C/EL7252C are 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 2channels.
Connection Diagrams
EL7242C
7242– 1
EL7252C
Ý
7242– 2
Manufactured under U.S. Patent Nos. 5,334,883,Ý5,341,047
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.
Page 2
EL7242C/EL7252C
Dual Input, High Speed, Dual Channel Power MOSFET 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
a
V
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 100 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
SOIC 570 mW
PDIP 1050 mW
e
T
J
e
25§C,
A
25§C, Ve15V unless otherwise specified
Test
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
TD is 3.1in
2
Page 3
EL7242C/EL7252C
Dual Input, High Speed, Dual Channel Power MOSFET 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
7242– 3
Units
IV ns
IV ns
TD is 1.5in
7242– 4
Simplified Schematic
3
7242– 5
Page 4
EL7242C/EL7252C
Dual Input, High Speed, Dual Channel Power MOSFET Driver
Typical Performance Curve
Max Power/Derating Curves
Input Current vs Voltage
Quiescent Supply Current
7242– 17
7242– 7
Switch Threshold vs
Supply Voltage
Peak Drive vs Supply Voltage
‘‘ON’’ Resistance vs Supply Voltage
7242– 6
7242– 8
7242– 9
4
7242– 18
Page 5
EL7242C/EL7252C
Dual Input, High Speed, Dual Channel Power MOSFET Driver
Typical Performance Curve
Average Supply Current vs
Voltage and Frequency
Rise/Fall Time vs Load
Ð Contd.
7242– 10
Average Supply Current
vs Capacitive Load
Rise/Fall Time vs Supply Voltage
7242– 11
7242– 16
7242– 12
5
Page 6
EL7242C/EL7252C
Dual Input, High Speed, Dual Channel Power MOSFET Driver
Typical Performance Curve
Rise/Fall Time vs Temperature
Ð Contd.
7242– 13
Delay vs Temperature
Propagation Delay vs Supply Voltage
7242– 14
7242– 15
6
Page 7
BLANK
7
Page 8
EL7242C/EL7252C
Dual Input, High Speed, Dual Channel Power MOSFET Driver
EL7242C/EL7252CJanuary 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.8
Loading...