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CT T ODU MEN E PR PLACE ter at LET D RE n O rt Ce m/tsc OBS ENDE uppo co OMM hnical S .intersil. C January 1996, Rev A O RE Data ec r www T Sheet N r ct ou IL o onta INTERS c 81-88
EL7240, EL7241
FN7284
High Speed Coil Drivers
The EL7240/EL7241 high speed coil drivers accept logic inputs which independently control a pair of 3 PMOS FET's. The output transistors share a common source, making these devices well suited for "current steering" and analog switching applications. The typical clamping diodes to ground are removed, thus allowing pins (6) and (7) to swing negative. This feature is desirable when driving "center-tapped" coils referenced to ground. The logic "NAND" input configuration can be used to "enable" the outputs. The EL7240 and EL7241 differ only by their logic polarity.
Features
* 20ns Propagation delay * Clock to 10MHz * 2 Amp peak output drive * 3 output impedance * 3V/5V Logic input compatible * Outputs "OK" below ground * Operating voltage 4.5V to 16V
Applications
* Tape drive-write head driver * Current switching
Pinouts
EL7240 (8-PIN PDIP, SOIC) TOP VIEW
* Center-Tapped transformer driver * ATE-pin drivers * Analog switching * AC switching * T - switch
Ordering Information
PART NUMBER EL7240CN EL7240CS EL7241CN EL7241 (8-PIN PDIP, SOIC) TOP VIEW EL7241CS TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C PACKAGE 8-Pin PDIP 8-Pin PSOIC 8-Pin PDIP 8-Pin PSOIC PKG. NO. MDP0031 MDP0027 MDP0031 MDP0027
Operating Voltage Range
PINS VDD/GND VDD/Output Source/Output Output/GND MIN/MAX (VOLTS) 4.5/16 0/-20 0/-16 16/-10
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright (c) Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners.
EL7240, EL7241
Absolute Maximum Ratings (TA = 25C)
Supply (V+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5V Input Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V above V+ Combined Peak Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . .4A Storage Temperature Range . . . . . . . . . . . . . . . . . .-65C to +150C Ambient Operating Temperature . . . . . . . . . . . . . . . .-40C to +85C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 125C Power Dissipation SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .570mW PDIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1050mW
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: TJ = TC = TA
DC Electrical Specifications
PARAMETER INPUT VIH IIH VIL IIL VHVS OUTPUT RON IOFF IPK IDC VS POWER SUPPLY IS VS Pull-Up Resistance Off Leakage Peak Output Current
TA = 25C, V = 15V unless otherwise specified TEST CONDITIONS MIN TYP MAX UNITS
DESCRIPTION
Logic "1" Input Voltage Logic "1" Input Current Logic "0" Input Voltage Logic "0" Input Current Input Hysteresis @0V @V+
2.4 0.1 10 0.8 0.1 0.3 10
V A V A V
IOUT = -100mA VOUT = 0V Source Channel Channel A or B, 100mA Load 100 0.2
3
6 10
A A mA
2.0
Continuous Output Current Source Potential with Grounded Drain
2.3
2.75
V
Power Supply Current Operating Voltage
Inputs High 4.5
1
2.5 16
mA V
AC Electrical Specifications
PARAMETER SWITCHING CHARACTERISTICS tD-ON tD-OFF
TA = 25C, V = 15V unless otherwise specified DESCRIPTION MIN TYP MAX UNITS
Turn-On Delay Time Turn-Off Delay Time
18 20
25 25
ns ns
Rise and Fall times (tR and tF) are load dependent.
2
EL7240, EL7241 Typical Performance Curves
Supply Current vs VDD and Input Connection Source Voltage vs Current (Grounded Drain ) Output Conduction vs VGS
Max Power/Derating Curves
Switch Threshold vs Supply Voltage
Input Current vs Voltage
Peak Drive vs Supply Voltage
Propagation Delay vs Supply Voltage
Delay vs Temperature
3
EL7240, EL7241 Typical Applications
Write Head Driver
High Current LED/Laser Diode Driver
4
EL7240, EL7241 Typical Applications
(Continued)
Bi-Level Step Generator
Level Shifter
5
EL7240, EL7241 Typical Applications
(Continued)
Push-Pull Transformer Driver
High Speed Bipolar Drive Circuit
6
EL7240, EL7241 Typical Applications
(Continued)
"Two-Bit" Current Source with Gating
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 implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com 7

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