® T UCT ROD ACEMEN at P E r T L e E P t L n E e O R OBS ENDED upport C om/tsc c . MM nical S rsil ECO TeSheet h .inte January 1996, Rev A NO R tData r c or www u o IL ac S t n R o E c 8-INT 1-88 High Speed Coil Drivers Features The EL7240/EL7241 high speed coil drivers accept logic inputs which independently control a pair of 3Ω 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. • 20ns Propagation delay EL7240, EL7241 FN7284 • Clock to 10MHz • 2 Amp peak output drive • 3Ω output impedance • 3V/5V Logic input compatible • Outputs “OK” below ground • Operating voltage 4.5V to 16V Applications • Tape drive-write head driver Pinouts • Current switching EL7240 (8-PIN PDIP, SOIC) TOP VIEW • Center-Tapped transformer driver • ATE-pin drivers • Analog switching • AC switching • T - switch Ordering Information PART NUMBER EL7241 (8-PIN PDIP, SOIC) TOP VIEW TEMP. RANGE PACKAGE PKG. NO. EL7240CN -40°C to +85°C 8-Pin PDIP MDP0031 EL7240CS -40°C to +85°C 8-Pin PSOIC MDP0027 EL7241CN -40°C to +85°C 8-Pin PDIP MDP0031 EL7241CS -40°C to +85°C 8-Pin PSOIC MDP0027 Operating Voltage Range 1 PINS MIN/MAX (VOLTS) VDD/GND 4.5/16 VDD/Output 0/-20 Source/Output 0/-16 Output/GND 16/-10 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 © 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 = 25°C) Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 125°C Power Dissipation SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .570mW PDIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1050mW Supply (V+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5V Input Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V above V+ Combined Peak Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . .4A 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: TJ = TC = TA DC Electrical Specifications PARAMETER TA = 25°C, V = 15V unless otherwise specified DESCRIPTION TEST CONDITIONS MIN TYP MAX UNITS INPUT VIH Logic “1” Input Voltage IIH Logic “1” Input Current VIL Logic “0” Input Voltage IIL Logic “0” Input Current VHVS Input Hysteresis 2.4 V @V+ 0.1 @0V 0.1 10 µA 0.8 V 10 µA 0.3 V OUTPUT RON Pull-Up Resistance IOUT = -100mA IOFF Off Leakage VOUT = 0V IPK Peak Output Current Source IDC Continuous Output Current Channel VS Source Potential with Grounded Drain Channel A or B, 100mA Load IS Power Supply Current Inputs High VS Operating Voltage 3 0.2 6 Ω 10 µA 2.0 A 100 mA 2.3 2.75 V 1 2.5 mA 16 V POWER SUPPLY AC Electrical Specifications 4.5 TA = 25°C, V = 15V unless otherwise specified PARAMETER DESCRIPTION MIN TYP MAX UNITS SWITCHING CHARACTERISTICS tD-ON Turn-On Delay Time 18 25 ns tD-OFF Turn-Off Delay Time 20 25 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 ) Max Power/Derating Curves Input Current vs Voltage Propagation Delay vs Supply Voltage 3 Output Conduction vs VGS Switch Threshold vs Supply Voltage Peak Drive vs Supply Voltage Delay vs Temperature 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