M TC4404/TC4405 1.5A Dual Open-Drain MOSFET Drivers Features General Description • Independently Programmable Rise and Fall Times • Low Output Impedance – 7Ω Typ. • High Speed tR, tF – <30nsec with 1000pF Load • Short Delay Times – <30nsec • Wide Operating Range - 4.5V to 18V • Latch-Up Protected: Will Withstand > 500mA Reverse Current (Either Polarity) • Input Withstands Negative Swings Up to -5V The TC4404/TC4405 are CMOS buffer-drivers constructed with complementary MOS outputs, where the drains of the totem-pole output have been left separated so that individual connections can be made to the pull-up and pull-down sections of the output. This allows the insertion of drain-current-limiting resistors in the pull-up and/or pull-down sections, allowing the user to define the rates of rise and fall for a capacitive load; or a reduced output swing, if driving a resistive load, or to limit base current, when driving a bipolar transistor. Minimum rise and fall times, with no resistors, will be less than 30nsec for a 1000pF load. Applications For driving MOSFETs in motor-control applications, where slow-ON/fast-OFF operation is desired, these devices are superior to the previously used technique of adding a diode-resistor combination between the driver output and the MOSFET, because they allow accurate control of turn-ON, while maintaining fast turnOFF and maximum noise immunity for an OFF device. • • • • Motor Controls Driving Bipolar Transistors Driver for Non-overlapping Totem Poles Reach-Up/Reach-Down Driver Device Selection Table Part Number Package Temp. Range TC4404COA 8-Pin SOIC 0°C to +70°C TC4404CPA 8-Pin PDIP 0°C to +70°C TC4404EOA 8-Pin SOIC -40°C to +85°C TC4404EPA 8-Pin PDIP -40°C to +85°C TC4404MJA 8-Pin CERDIP -55°C to +125°C TC4405COA 8-Pin SOIC 0°C to +70°C TC4405CPA 8-Pin PDIP 0°C to +70°C TC4405EOA 8-Pin SOIC -40°C to +85°C TC4405EPA 8-Pin PDIP -40°C to +85°C TC4405MJA 8-Pin CERDIP -55°C to +125°C When used to drive bipolar transistors, these drivers maintain the high speeds common to other Microchip drivers. They allow insertion of a base current-limiting resistor, while providing a separate half-output for fast turn-OFF. By proper positioning of the resistor, either npn or pnp transistors can be driven. For driving many loads in low-power regimes, these drivers, because they eliminate shoot-through currents in the output stage, require significantly less power at higher frequencies, and can be helpful in meeting low-power budgets. Package Type 8-Pin PDIP/SOIC/CERDIP VDD 1 8 A TOP VDD 1 8 A TOP IN A 2 7 A BOTTOM IN A 2 7 A BOTTOM IN B 3 6 B TOP IN B 3 6 B TOP GND 4 5 B BOTTOM GND 4 5 B BOTTOM TC4404 TC4404 VDD 1 8 A TOP VDD 1 8 A TOP IN A 2 7 A BOTTOM IN A 2 7 A BOTTOM IN B 3 6 B TOP IN B 3 6 B TOP GND 4 5 B BOTTOM GND 4 5 B BOTTOM TC4405 2002 Microchip Technology Inc. TC4405 DS21418B-page 1 TC4404/TC4405 Because neither drain in an output is dependent on the other, these devices can also be used as open-drain buffer/drivers where both drains are available in one device, thus minimizing chip count. Unused open drains should be returned to the supply rail that their device sources are connected to (pull-downs to ground, pull-ups to VDD), to prevent static damage. In addition, in situations where timing resistors or other means of limiting crossover currents are used, like drains may be paralleled for greater current carrying capacity. These devices are built to operate in the most demanding electrical environments. They will not latch up under any conditions within their power and voltage ratings; they are not subject to damage when up to 5V of noise spiking of either polarity occurs on their ground pin; and they can accept, without damage or logic upset, up to 1/2 amp of reverse current (of either polarity) being forced back into their outputs. All terminals are fully protected against up to 2kV of electrostatic discharge. Functional Block Diagram 1 VDD TC4404 Inverting 8 (6) 300 mV Pull Up 7 (5) Input 2 (3) 4.7V GND Pull Down TC4405 Noninverting 4 Effective Input C ≤ 12 pF DS21418B-page 2 A (B) 2002 Microchip Technology Inc. TC4404/TC4405 1.0 ELECTRICAL CHARACTERISTICS *Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Absolute Maximum Ratings* Supply Voltage..................................................... +22V Power Dissipation (TA ≤ 70°C) PDIP ........................................................ 730mW CERDIP ................................................... 800mW SOIC........................................................ 470mW Package Thermal Resistance PDIP RθJ-A ............................................. 125°C/W PDIP RθJ-C ............................................... 45°C/W CERDIP RθJ-A.........................................150°C/W CERDIP RθJ-C ......................................... 55°C/W SOIC RθJ-A ............................................ 155°C/W SOIC RθJ-C .............................................. 45°C/W Operating Temperature Range C Version .........................................0°C to +70°C E Version ..................................... -40°C to +85°C M Version................................... -55°C to +125°C Storage Temperature Range ............. -65°C to +150°C TC4404/TC4405 ELECTRICAL SPECIFICATIONS Electrical Characteristics: TA = +25°C, with 4.5V ≤ VDD ≤ 18V, unless otherwise noted. Symbol Parameter Min Typ Max Units V Test Conditions Input VIH Logic 1, High Input Voltage 2.4 — — VIL Logic 0, Low Input Voltage — — 0.8 V IIN Input Current -1 — 1 µA 0V ≤ VIN ≤ VDD Output VOH High Output Voltage VDD – 0.025 — — V VOL Low Output Voltage — — 0.025 V RO Output Resistance — 7 10 Ω IOUT = 10mA, VDD = 18V; Any Drain IPK Peak Output Current (Any Drain) — 1.5 — A Duty cycle ≤ 2%, t ≤ 300µsec IDC Continuous Output Current (Any Drain) — — 100 mA IR Latch-Up Protection (Any Drain) Withstand Reverse Current — >500 — mA Duty cycle ≤ 2%, t ≤ 300µsec Switching Time (Note 1) tR Rise Time — 25 30 nsec Figure 3-1, CL = 1000pF tF Fall Time — 25 30 nsec Figure 3-1, CL = 1000pF tD1 Delay Time — 15 30 nsec Figure 3-1, CL = 1000pF tD2 Delay Time — 32 50 nsec Figure 3-1, CL = 1000pF — — — — 4.5 0.4 mA Power Supply Power Supply Current IS Note 1: VIN = 3V (Both Inputs) VIN = 0V (Both Inputs) Switching times ensured by design. 2002 Microchip Technology Inc. DS21418B-page 3 TC4404/TC4405 TC4404/TC4405 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Over operating temperature range with 4.5V ≤ VDD ≤ 18V, unless otherwise noted. Symbol Parameter Min Typ Max Units V VIH Logic 1, High Input Voltage 2.4 — — VIL Logic 0, Low Input Voltage — — 0.8 V IIN Input Current -10 — 10 µA V Test Conditions 0V ≤ VIN ≤ VDD Output VOH High Output Voltage VDD – 0.025 — — VOL Low Output Voltage — — 0.025 V RO Output Resistance — 9 12 Ω IOUT = 10mA, VDD = 18V; Any Drain IPK Peak Output Current (Any Drain) — 1.5 — A Duty cycle ≤ 2%, t ≤ 300µsec IDC Continuous Output Current (Any Drain) — — 100 mA IR Latch-Up Protection (Any Drain) Withstand Reverse Current — >500 — mA Duty cycle ≤ 2%, t ≤ 300µsec Switching Time (Note 1) tR Rise Time — — 40 nsec Figure 3-1, CL = 1000pF tF Fall Time — — 40 nsec Figure 3-1, CL = 1000pF tD1 Delay Time — — 40 nsec Figure 3-1, CL = 1000pF tD2 Delay Time — — 60 nsec Figure 3-1, CL = 1000pF — — — — 8 0.6 mA Power Supply Power Supply Current IS Note 1: VIN = 3V (Both Inputs) VIN = 0V (Both Inputs) Switching times ensured by design. DS21418B-page 4 2002 Microchip Technology Inc. TC4404/TC4405 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: Pin No. (8-Pin PDIP, SOIC, CERDIP) PIN FUNCTION TABLE Symbol Description 1 VDD Supply input, 4.5V to 18V. 2 IN A Control input A, TTL/CMOS compatible input. 3 IN B Control input A, TTL/CMOS compatible input. 4 GND Ground. 5 B BOTTOM 6 B TOP 7 A BOTTOM 8 A TOP 2002 Microchip Technology Inc. Output B, pull down. Output B, pull up. Output A, pull down. Output A, pull up. DS21418B-page 5 TC4404/TC4405 3.0 APPLICATIONS INFORMATION 3.1 Circuit Layout Guidelines addition, it is advisable that low ESR bypass capacitors (4.7µF or 10µF tantalum) be placed as close to the driver as possible. The driver should be physically located as close to the device it is driving as possible to minimize the length of the output trace. Avoid long power supply and ground traces (added inductance causes unwanted voltage transients). Use power and ground planes wherever possible. In FIGURE 3-1: SWITCHING TIME TEST CIRCUITS +5V 90% Input VDD = 18V 0V 10% tD1 tD2 tF 18V 4.7µF tR 90% 90% 0.1µF Output 1 Input 2 8,7 1 Output Inverting Driver CL = 1000pF 2 10% 10% 0V +5V 90% Input 0V 4 10% 18V tD1 Input: 100kHz, square wave, tRISE = tFALL ≤ 10nsec 90% tR Output tD2 10% 0V 90% tF 10% Noninverting Driver 3.2 Typical Applications FIGURE 3-2: ZERO CROSSOVER CURRENT TOTEM-POLE SWITCH GND DS21418B-page 6 DRIVING BIPOLAR TRANSISTORS VDD (4.5V - 18V) VDD (4.5V - 18V) From TTL FIGURE 3-3: RT TC4404 RT VOUT From TTL RIB TC4405 RIB GND 2002 Microchip Technology Inc. TC4404/TC4405 FIGURE 3-4: SERVO MOTOR CONTROL +24V 47kΩ 47kΩ +12V 15V 15V 0.1µF 0.1µF Direction (TTL Level) RT Speed (PWM) Motor RT ISENSE TC4469 GND FIGURE 3-5: TC4404 REACH-UP AND REACH-DOWN DRIVING +12V +12V Switched +12V +5V From TTL GND +5V TC4404 GND Switched -12V -12V 2002 Microchip Technology Inc. -12V DS21418B-page 7 TC4404/TC4405 4.0 TYPICAL CHARACTERISTICS Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Rise Time vs. Supply Voltage Fall Time vs. Supply Voltage 100 2200 pF 2200 pF TA = +25°C 80 60 1000 p pF 40 470 pF 60 1000 pF 40 60 6 15V 20 100 pF F 8 10 12 14 16 0 18 4 6 8 10 VDD (V) 12 14 16 0 100 18 Rise and Fall Times vs. Temperature 50 TIME (nsec) 60 10V 15V 40 60 C = 1000pF VDD = 17.5V C 50 DELAY TIME (nsec) VDD = 5V 80 40 30 tFALL 20 20 10,000 Propagation Delay vs. Supply Voltage 60 100 °C 1000 CLOAD (pF) VDD (V) Fall Time vs. Capacitive Load TA 10V 40 20 100 pF tFALL (nsec) 80 1500 pF 470 p pF 20 4 VDD °C TA TA = +25°C tRISE (nsec) 1500 pF tFALL (nsec) tRISE (nsec) 80 0 Rise TIme vs. Capacitive Load 100 100 = 1000pF °C tD2 40 30 tD1 20 tRISE 0 100 1000 CLOAD (pF) 10,000 10 -55 -35 -15 Effect of Input Amplitude on Delay Time 50 °C 40 tD2 30 20 0 2 DS21418B-page 8 4 6 VDRIVE (V) 8 10 8 10 12 14 VDD (V) 16 18 tD2 40 30 20 tD1 6 TA = +25°C IQUIESCENT (mA) T 4 10 VDD = 17.5V V = 1000pF DELAY TIME (nsec) 50 10 Quiescent Supply Current vs. Voltage 60 CLOAD = 1000pF DELAY TIME (nsec) 25 45 65 85 105 125 °C) Propagation Delay Time vs. Temperature 60 10 5 10 -55 -35 -15 5 BOTH INPUTS = 1 1 tD1 25 45 65 85 105 125 °C) BOTH INPUTS = 0 0.1 4 6 8 10 12 VDD (V) 14 16 18 2002 Microchip Technology Inc. TC4404/TC4405 TYPICAL CHARACTERISTICS (CONTINUED) Quiescent Supply Current vs. Temperature Pull-Up Output Resistance 4.0 Pull-Down Output Resistance 25 25 3.5 2.5 WORST CASE @ TJ = +150°C RDS(ON) (Ω) 3.0 15 TYP @ +25°C 10 TEMPERATURE (°C) 2002 Microchip Technology Inc. TYP @ +25°C 8 5 5 25 45 65 85 105 125 15 10 8 2.0 -55 -35 -15 5 WORST CASE @ TJ = +150°C 20 20 RDS(ON) (Ω) IQUIESCENT (mA) VDD = 18V BOTH INPUTS = 1 4 6 8 10 12 VDD (V) 14 16 18 4 6 8 10 12 14 16 18 VDD (V) DS21418B-page 9 TC4404/TC4405 5.0 PACKAGING INFORMATION 5.1 Package Marking Information Package marking data not available at this time. 5.2 Package Dimensions 8-Pin Plastic DIP PIN 1 .260 (6.60) .240 (6.10) .045 (1.14) .030 (0.76) .070 (1.78) .040 (1.02) .310 (7.87) .290 (7.37) .400 (10.16) .348 (8.84) .200 (5.08) .140 (3.56) .040 (1.02) .020 (0.51) .150 (3.81) .115 (2.92) .110 (2.79) .090 (2.29) .022 (0.56) .015 (0.38) .015 (0.38) .008 (0.20) 3° MIN. .400 (10.16) .310 (7.87) Dimensions: inches (mm) DS21418B-page 10 2002 Microchip Technology Inc. TC4404/TC4405 Package Dimensions (Continued) 8-Pin CERDIP (Narrow) .110 (2.79) .090 (2.29) PIN 1 .300 (7.62) .230 (5.84) .020 (0.51) MIN. .055 (1.40) MAX. .320 (8.13) .290 (7.37) .400 (10.16) .370 (9.40) .040 (1.02) .020 (0.51) .200 (5.08) .160 (4.06) .150 (3.81) MIN. .200 (5.08) .125 (3.18) .015 (0.38) .008 (0.20) 3° MIN. .400 (10.16) .320 (8.13) .065 (1.65) .020 (0.51) .045 (1.14) .016 (0.41) Dimensions: inches (mm) 8-Pin SOIC PIN 1 .157 (3.99) .150 (3.81) .244 (6.20) .228 (5.79) .050 (1.27) TYP. .197 (5.00) .189 (4.80) .069 (1.75) .053 (1.35) .020 (0.51) .010 (0.25) .013 (0.33) .004 (0.10) .010 (0.25) .007 (0.18) 8° MAX.. .050 (1.27) .016 (0.40) Dimensions: inches (mm) 2002 Microchip Technology Inc. DS21418B-page 11 TC4404/TC4405 NOTES: DS21418B-page 12 2002 Microchip Technology Inc. TC4404/TC4405 Sales and Support Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following: 1. 2. 3. Your local Microchip sales office The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277 The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2002 Microchip Technology Inc. DS21418B-page13 TC4404/TC4405 NOTES: DS21418B-page14 2002 Microchip Technology Inc. TC4404/TC4405 Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. 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