EL7156C EL7156C High Performance Pin Driver Features General Description • Clocking Speeds up to 40MHz • 15ns tr/tf at 2000pF CLOAD • 0.5ns Rise and Fall Times Mismatch • 0.5ns TON-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 to 18V The EL7156C 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 excellent choice when driving high capacitance loads. Applications The output pin OUT is connected to input pins VH or VL respectively, depending on the status of the IN pin. When the OE pin is active low, the output is placed in the tri-state mode. The isolation of the output FETs from the power supplies enables VH and VL to be set independently, enabling level-shifting to be implemented. Related to the EL7155C, the EL7156C adds a lower supply pin VS- and makes VL an isolated and independent input. This feature adds applications flexibility and improves switching response due to the increased enhancement of the output FETs. • • • • This pin driver has improved performance 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. ATE/Burn-in Testers Level Shifting IGBT Drivers CCD Drivers Available in the 8-Pin SOIC and 8-Pin PDIP packages, the EL7156C is specified for operation over the -40°C to +85°C temperature range. Ordering Information Package Tape & Reel Outline # EL7156CN Part No. 8-Pin DIP - MDP0031 EL7156CS 8-Pin SOIC - MDP0027 EL7156CS-T7 8-Pin SOIC 7” MDP0027 EL7156CS-T13 8-Pin SOIC 13” MDP0027 Pin Configuration VS+ 1 OE 2 IN 3 8 VH L o g i c GND 4 7 OUT 6 VL 5 VS- 8-Pin PDIP/SOIC September 5, 2000 © 2000 Elantec Semiconductor, Inc. EL7156C EL7156C High Performance Pin Driver Absolute Maximum Ratings (T A = 25°C) 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. +18V Supply Voltage (VS+ to VS-) Input Voltage VS- -0.3V, VS +0.3V Continuous Output Current 200mA Storage Temperature Range Ambient operating Temperature Operating Junction Temperature Power Dissipation Maximum ESD -65°C to +150°C -40°C to +85°C 125°C see curves 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: TJ = TC = TA. Electrical Characteristics VS+ = +15V, VH = +15V, VL = 0V, VS-=0V, TA = 25°C, unless otherwise specified Parameter Description Condition Min Typ Max Units VIH = VS+ 0.1 10 µA VIL = 0V 0.1 Input VIH Logic ‘1’ Input Voltage IIH Logic ‘1’ Input Current 2.4 V VIL Logic ‘0’ Input Voltage IIL Logic ‘0’ Input Current 0.8 V 10 µA CIN Input Capacitance 3.5 pF RIN Input Resistance 50 MΩ Output ROVH ON Resistance VH to OUT IOUT = -200 mA 2.7 4.5 Ω ROVL ON Resistance VL to OUT IOUT = +200 mA 3.5 5.5 Ω IOUT Output Leakage Current OE = 0V, OUT = VH/VL 0.1 10 µA Peak Output Current (linear resistive operation) Source 3.5 A Sink 3.5 A Continuous Output Current Source/Sink IPK IDC 200 mA Power Supply IS IVH Power Supply Current Inputs = VS+ 1.3 3 mA Off Leakage at VH and VL VH, VL = 0V 4 10 µA Switching Characteristics tR Rise Time CL =2000 pF 14.5 ns tF Fall Time CL = 2000 pF 15 ns tR, tF Mismatch CL = 2000 pF 0.5 ns tD-1 Turn-Off Delay Time CL = 2000 pF 9.5 ns tD-2 Turn-On Delay Time CL = 2000 pF 10 ns tD-1-tD-2 Mismatch CL = 2000 pF 0.5 ns tRFdelta tDdelta tD-3 Tri-State Delay Enable 10 ns tD-4 Tri-State Delay Disable 10 ns 2 Electrical Characteristics VS+ = +5V, VH = +5V, VL = -5V, VS- = -5V, TA = 25°C, unless otherwise specified Parameter Description Condition Min Typ Max Units VIH = VS+ 0.1 10 µA VIL = 0V 0.1 Input VIH Logic ‘1’ Input Voltage IIH Logic ‘1’ Input Current 2.0 V VIL Logic ‘0’ Input Voltage IIL Logic ‘0’ Input Current 0.8 V 10 µA CIN Input Capacitance 3.5 pF RIN Input Resistance 50 MΩ Output ROVH ON Resistance VH to OUT IOUT = -200 mA 3.4 5 Ω ROVL ON Resistance VL to OUT IOUT = +200 mA 4 6 Ω IOUT Output Leakage Current OE = 0V, OUT = VH/VL 0.1 10 µA Peak Output Current (linear resistive operation) Source 3.5 A Sink 3.5 A Continuous Output Current Source/Sink IPK IDC 200 mA Power Supply IS Power Supply Current Inputs = VS+ 1 2.5 mA VH Off Leakage at VH and VL VH, VL = 0V 4 10 µA Switching Characteristics tR Rise Time CL = 2000 pF 17 ns tF Fall Time CL = 2000 pF 17 ns tR, tF Mismatch CL = 2000 pF 0 ns tD-1 Turn-Off Delay Time CL = 2000 pF 11.5 ns tD-2 Turn-On Delay Time CL = 2000 pF 12 ns tD-1-tD-2 Mismatch CL = 2000 pF tRFdelta tDdelta 0.5 ns tD-3 Tri-State Delay Enable 10 ns tD-4 Tri-State Delay Disable 10 ns 3 EL7156C EL7156C High Performance Pin Driver High Performance Pin Driver Typical Performance Curves Input Threshold vs Supply Voltage T=25°C Max Power/Derating Curves 1.8 1W High Threshold 8-Lead PDIP Input voltage (V) Max Power (W) 1.6 θJA=100°C/W 800mW 600mW 8-Lead SO Max TJ=125°C 400mW θJA=160°C/W Hysteresis 1.4 1.2 Low Threshold 200mW 0 1.0 0 25 50 75 100 125 150 5 10 Temperature (°C) Quiescent Supply Current vs Supply Voltage T=25°C 6 “On” Resistance (Ω) Supply Current (mA) “On” Resistance vs Supply Voltage IOUT=200mA, T=25°C, VS+=VH, VS-=VL=0V VOUT-VL 5 1.6 1.2 All Inputs = GND 0.8 0.4 4 VOUT-VH 3 2 1 All Inputs = VS+ 0 0 5 10 5 15 7.5 Supply Voltage (V) 30 15 Supply Voltage (V) 2.0 10 12.5 15 Supply Voltage (V) Rise/Fall Time vs Supply Voltage CL=2000pF, T=25°C 20 Rise/Fall Time vs Temperature CL=2000pF, VS+=15V 18 Rise/Fall Time (ns) 25 Rise/Fall Time (ns) EL7156C EL7156C tR 20 tI 15 tF 16 14 tR tF 12 tR 10 5 10 10 -50 15 Supply Voltage (V) 0 50 Temperature (°C) 4 100 150 Typical Performance Curves 17 Propagation Delay vs Supply Voltage CL=2000pF, T=25°C Propagation Delay vs Temperature CL=2000pF, VS+=15V 12 15 tD-2 tD-2 Delay Time (ns) Delay Time (ns) 14 13 tD-1 11 10 tD-1 8 6 -50 9 5 15 10 70 -25 0 25 50 75 100 125 Temperature (°C) Supply Voltage (V) Rise/Fall Time vs Load Capacitance VS+=+15V, T=25°C 5 Supply Current vs Load Capacitance VS+=VH=15V, VS-=VL=0V, T=25°C, f=20kHz 60 Supply Current (mA) Rise/Fall Time (ns) 4 50 40 tF 30 20 0 100 1000 0 100 10000 Load Capacitance (pF) Supply Current (mA) 100 VS+=15V VS+=10V 1.0 VS+=5V 0.1 10k 100k 1M 1000 Load Capacitance (pF) Supply Current vs Frequency CL=1000pF, T=25°C 10 2 1 tR 10 3 10M Frequency (Hz) 5 10000 EL7156C EL7156C High Performance Pin Driver EL7156C EL7156C High Performance Pin Driver Truth Table Operating Voltage Range OE IN OUT PIN MIN 0 0 Tri-state GND - VS- -5 MAX 0 0 1 Tri-state VS+ - VS- 5 18 1 0 VH VH - VL -18 18 1 1 VL VS+ - VH 0 18 VS+ - GND 5 18 Timing Diagram 5V Input 2.5V 0 90% Inverted Output 10% tD2 tD1 tF tR Standard Test Configuration VH 0.1µ VS+ 4.7µ VS+ 10k 1 0.1µ 2 OE IN 3 GND 4 4.7µ 8 OUT L o g i c 7 2000p 6 5 0.1µ 4.7µ 0.1µ 4.7µ VL EL7156C - 6 VS- Pin Description Pin Name Function 1 VS + Positive Supply Voltage 2 OE Output Enable Equivalent Circuit VS+ INPUT V SCircuit 1 3 IN Input 4 GND Ground 5 VS - Negative Supply Voltage 6 VL Lower Output Voltage 7 OUT Output Reference Circuit 1 VH VSVS+ VOUT VSVS- VL Circuit 2 8 VH High Output Voltage 7 EL7156C EL7156C High Performance Pin Driver EL7156C EL7156C High Performance Pin Driver Block Diagram OE VH VS+ IN Level Shifter 3-State Control OUT GND V SVL Application Information All input pins are compatible with both 3V and 5V CMOS signals. With a positive supply (VS+) of 5V, the EL7156C is also compatible with TTL inputs. Product Description The EL7156C is a high performance 40MHz pin driver. It contains two analog switches connecting VH and VL to OUT. Depending on the value of the IN pin, one of the two switches will be closed and the other switch open. An output enable (OE) is also supplied which opens both switches simultaneously. Power Supply Bypassing When using the EL7156C, it is very important to use adequate power supply bypassing. The high switching currents developed by the EL7156C necessitate the use of a bypass capacitor between the supplies (VS+ & VS-) and GND pins. It is recommended that a 2.2µF tantalum capacitor be used in parallel with a 0.1µF low-inductance ceramic MLC capacitor. These should be placed as close to the supply pins as possible. It is also recommended that the VH and VL pins have some level of bypassing, especially if the EL7156C is driving highly capacitive loads. Due to the topology of the EL7156C, both the VH and VL pins can be connected to any voltage between the VS+ and VS- pins. The EL7156C is available in both the 8-pin SOIC and the 8-pin PDIP packages. The relevant package should b e ch o s en d ep e n d i n g o n t h e ca l c u l at ed p o we r dissipation. Supply Voltage Range and Input Compatibility Power Dissipation Calculation The EL7156C 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 relationship between the VS+, VS-, VH, VL and GND pins. When switching at high speeds, or driving heavy loads, the EL7156C drive capability is limited by the rise in die temperature brought about by internal power dissipation. For reliable operation die temperature must be kept below Tjmax (125°C). It is necessary to calculate the 8 where: power dissipation for a given application prior to selecting the package type. • Tjmax is the maximum junction temperature (125°C), Power dissipation may be calculated: 2 • Tmax is the maximum operating temperature, 2 PD = ( V S × I S ) + ( C INT × V S × f ) + ( C L × V OU T × f ) • PD is the power dissipation calculated above, • θja thermal resistance on junction to ambient. where: θja is 160°C/W for the SO8 package and 100°C/W for the PDIP8 package when using a standard JEDEC JESD51-3 single-layer test board. If Tjmax is greater than 125°C when calculated using the equation above, then one of the following actions must be taken: • VS is the total power supply to the EL7156C (from VS+ to GND), • Vout is the swing on the output (VH - VL), • CL is the load capacitance, • IS is the quiescent supply current (3mA max.) and • Reduce θja the system by designing more heat-sinking into the PCB (as compared to the standard JEDEC JESD51-3) • f is frequency • Use the PDIP8 instead of the SO8 package Having obtained the application’s power dissipation, a maximum package thermal coefficient may be determined, to maintain the internal die temperature below Tjmax: • De-rate the application either by reducing the switching frequency, the capacitive load, or the maximum operating (ambient) temperature (Tmax) • CINT is the internal load capacitance (50pF max.), T jmax – T max θ ja = ------------------------------PD 9 EL7156C EL7156C High Performance Pin Driver EL7156C EL7156C High Performance Pin Driver 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. September 5, 2000 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 intended 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. Elantec Semiconductor, Inc. 675 Trade Zone Blvd. Milpitas, CA 95035 Telephone: (408) 945-1323 (888) ELANTEC Fax: (408) 945-9305 European Office: +44-118-977-6080 Japan Technical Center: +81-45-682-5820 10 Printed in U.S.A.