M TC4431/TC4432 1.5A High-Speed 30V MOSFET Drivers Package Type Features • High Peak Output Current – 1.5A • Wide Operating Range - 4.5V to 30V • High Capacitive Load Drive Capability – 1000pF in 25nsec • Short Delay Times – <78nsec Typ. • Low Supply Current: - With Logic "1" Input – 2.5mA - With Logic "0" Input – 300µA • Low Output Impedance – 7Ω • Latch-Up Protected: Will Withstand >300mA Reverse Current • ESD Protected – 4kV 8-Pin PDIP/SOIC/CERDIP VDD 1 IN 2 LOCK DIS 3 7 OUT TC4431 6 OUT 5 GND GND 4 7 2 6 Inverting VDD 1 IN 2 LOCK DIS 3 Applications 8 VDD 8 VDD 7 OUT TC4432 6 OUT 5 GND GND 4 • • • 7 2 6 Noninverting Device Selection Table NOTE: SOIC pinout is identical to DIP. Part Number Package Temp. Range TC4431COA 8-Pin SOIC 0°C to +70°C TC4431CPA 8-Pin PDIP 0°C to +70°C TC4431EJA 8-Pin CERDIP -40°C to +85°C TC4431EOA 8-Pin SOIC -40°C to +85°C TC4431EPA 8-Pin PDIP -40°C to +85°C TC4432COA 8-Pin SOIC 0°C to +70°C TC4432CPA 8-Pin PDIP 0°C to +70°C TC4432EJA 8-Pin CERDIP -40°C to +85°C TC4432EOA 8-Pin SOIC -40°C to +85°C TC4432EPA 8-Pin PDIP -40°C to +85°C 2002 Microchip Technology Inc. General Description The TC4431/TC4432 are 30V CMOS buffer/drivers suitable for use in high-side driver applications. They will not latch up under any conditions within their power and voltage ratings. They can accept, without damage or logic upset, up to 300mA of reverse current (of either polarity) being forced back into their outputs. All terminals are fully protected against up to 4kV of electrostatic discharge. Under-voltage lockout circuitry forces the output to a "low" state when the input supply voltage drops below 7V. For operation in lower voltages, disable the lockout and start-up circuit by grounding pin 3 (LOCK DIS); for all other situations, pin 3 (LOCK DIS) should be left floating. The under-voltage lockout and start-up circuit gives brown out protection when driving MOSFETS. DS21424B-page 1 TC4431/TC4432 Functional Block Diagram 8 3 VDD UV LOCK LOCK DIS. 2mA Inverted TC4431 7 6 Input 2 250mV OUT OUT Non-Inverted TC4432 TC4431/TC4432 Inverting/Noninverting GND 4, 5 Effective Input C = 10pF DS21424B-page 2 2002 Microchip Technology Inc. TC4431/TC4432 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Supply Voltage....................................................... 36V Input Voltage (Note 1)....................VDD + 0.3V to GND Package Power Dissipation (TA ≤ 70°C) PDIP ........................................................ 730mW CERDIP ................................................... 800mW SOIC........................................................ 470mW Package Thermal Resistance CERDIP RθJ-A........................................ 150°C/W CERDIP RθJ-C ......................................... 50°C/W PDIP RθJ-A ............................................. 125°C/W PDIP RθJ-C ............................................... 42°C/W SOIC RθJ-A ............................................ 250°C/W SOIC RθJ-C .............................................. 75°C/W Operating Temperature Range C Version .........................................0°C to +70°C E Version ..................................... -40°C to +85°C Storage Temperature Range ............. -65°C to +150°C *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. TC4431/TC4432 ELECTRICAL SPECIFICATIONS Electrical Characteristics: TA = +25°C, with 4.5V ≤ VDD ≤ 30V, 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 (Note 1) -1 — 1 µA 0V ≤ VIN ≤ 12V IOUT = 100mA Output VOH High Output Voltage VDD – 1.0 VDD – 0.8 — V VOL Low Output Voltage — — 0.025 V RO Output Resistance — 7 10 Ω IOUT = 10mA, VDD = 30V IPK Peak Output Current — — 3.0 1.5 — — A Source: VDD = 30V Sink: VDD = 30V IREV Latch-Up Protection Withstand Reverse Current 0.3 — — A Duty cycle ≤ 2%, t ≤ 300µsec Switching Time (Note 2) tR Rise Time — 25 40 nsec Figure 3-1 tF Fall Time — 33 50 nsec Figure 3-1 tD1 Delay Time — 62 80 nsec Figure 3-1 tD2 Delay Time — 78 90 nsec Figure 3-1 Power Supply IS Power Supply Current — — 2.5 0.3 4 0.4 mA VS Start-up Threshold — 8.4 10 V VDO Drop-out Threshold 7 7.7 — V Note 1: 2: 3: VIN = 3V VIN = 0V Note 3 For inputs >12V, add a 1kΩ resistor in series with the input. See “Typical Characteristics” graph for input current. Switching times are ensured by design. For operation below 7V, pin 3 (LOCK DIS) should be tied to ground to disable the lockout and start-up circuit, otherwise, pin 3 must be left floating. 2002 Microchip Technology Inc. DS21424B-page 3 TC4431/TC4432 TC4431/TC4432 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Over operating temperature range with 4.5V ≤ VDD ≤ 30V, 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 (Note 1) -1 — 1 µA 0V ≤ VIN ≤ 12V IOUT = 100mA Output VOH High Output Voltage VDD – 1.2 — — V VOL Low Output Voltage — — 0.025 V RO Output Resistance — — 10 Ω IOUT = 10mA, VDD = 30V Switching Time (Note 2) tR Rise Time — — 60 nsec tF Fall Time — — 70 nsec Figure 3-1 Figure 3-1 tD1 Delay Time — — 100 nsec Figure 3-1 tD2 Delay Time — — 110 nsec Figure 3-1 Power Supply IS Power Supply Current — — — — 6 0.7 mA VS Start-up Threshold — 8.4 10 V VDO Drop-out Threshold 7 7.7 — V Note 1: 2: 3: VIN = 3V VIN = 0V Note 3 For inputs >12V, add a 1kΩ resistor in series with the input. See “Typical Characteristics” graph for input current. Switching times are ensured by design. For operation below 7V, pin 3 (LOCK DIS) should be tied to ground to disable the lockout and start-up circuit, otherwise, pin 3 must be left floating. DS21424B-page 4 2002 Microchip Technology Inc. TC4431/TC4432 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. (8-Pin PDIP, SOIC, CERDIP) Symbol 1 VDD Description 2 IN 3 LOCK DIS 4 GND Ground. 5 GND Ground. 6 OUT 7 OUT 8 VDD 2002 Microchip Technology Inc. DS21424B-page 5 TC4431/TC4432 3.0 APPLICATIONS INFORMATION FIGURE 3-1: SWITCHING TIME TEST CIRCUIT +5V 90% Input VDD = 30V 0V 4.7µF 0.1µF 10% tD1 VDD 7 90% 10% 10% 0V 2 Output 6 Inverting Driver CL = 1000pF +5V LOCK DIS. tR 90% Output 1, 8 Input tD2 tF 3 90% Input 4, 5 0V VDD Input: 100kHz, square wave, tRISE = tFALL ≤ 10nsec 10% tD1 90% tR Output 0V 90% tD2 10% tF 10% Noninverting Driver DS21424B-page 6 2002 Microchip Technology Inc. TC4431/TC4432 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. Supply Current vs. Capacitive Load Rise/Fall Time vs. VDD 60 150 2MHz 125 40 100 Time (nsec) ISUPPLY (mA) VDD = 12V 50 30 900kHz 20 600kHz CLOAD = 1000pF TA = +25°C tFALL 75 50 tRISE 25 10 200 kHz 20kHz 0 100 0 1000 CLOAD (pF) 3 10,000 6 9 12 15 18 VDD (V) 24 27 30 TD1 and TD2 Delay vs. VDD Input Current vs. Input Voltage 300 50 CLOAD = 1000pF TA = +25°C 45 250 TD1 40 35 TIME (nsec) INPUT CURRENT (mA) 21 30 25 20 WITHOUT 1K RES. 15 10 200 150 TD2 100 50 WITH 1K RES. 5 0 3 6 9 12 15 18 21 24 INPUT VOLTAGE (VIN) 2002 Microchip Technology Inc. 27 30 0 3 6 9 12 15 18 VDD (V) 21 24 27 30 DS21424B-page 7 TC4431/TC4432 5.0 PACKAGING INFORMATION Package marking data not available at this time. 5.1 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) .015 (0.38) .008 (0.20) 3° MIN. .400 (10.16) .310 (7.87) .022 (0.56) .015 (0.38) Dimensions: inches (mm) 8-Pin CDIP (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) .200 (5.08) .160 (4.06) .040 (1.02) .020 (0.51) .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) DS21424B-page 8 2002 Microchip Technology Inc. TC4431/TC4432 Package Dimensions (Continued) 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. DS21424B-page 9 TC4431/TC4432 NOTES: DS21424B-page 10 2002 Microchip Technology Inc. TC4431/TC4432 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. DS21424B-page11 TC4431/TC4432 NOTES: DS21424B-page12 2002 Microchip Technology Inc. TC4431/TC4432 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. 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