Datasheet TC4431, TC4432 (Microchip)

TC4431/TC4432 1.5A High-Speed 30V MOSFET Drivers Features General Description
• High Peak Output Current – 1.5 A The TC4431/TC4432 are 30V CMOS buffer/drivers • Wide Input Supply Operating Range: suitable for use in high-side driver applications. They - 4.5V to 30V will not latch up under any conditions within their power and voltage ratings. They can accept, without damage • High Capacitive Load Drive Capability: or logic upset, up to 300 mA of reverse current (of - 1000 pF in 25 nsec either polarity) being forced back into their outputs. All • Short Delay Times – <78 nsec Typ. terminals are fully protected against up to 4 kV of • Low Supply Current: electrostatic discharge. - With Logic ‘1’ Input – 2.5 mA Under-voltage lockout circuitry forces the output to a - With Logic ‘0’ Input – 300 µA ‘low’ state when the input supply voltage drops below • Low Output Impedance – 7 Ω 7V. For operation at lower voltages, disable the lockout and start-up circuit by grounding pin 3 (LOCK DIS); for • Latch-Up Protected: Will Withstand >300 mA all other situations, pin 3 (LOCK DIS) should be left Reverse Current floating. The under-voltage lockout and start-up circuit • ESD Protected – 4 kV gives brown out protection when driving MOSFETS.
Applications Package Type
• Small Motor Drive
8-Pin PDIP/SOIC/CERDIP
• Power MOSFET Driver • Driving Bipolar Transistors VDD 1 8 VDD IN 2 7 OUT
TC4431
LOCK DIS 3 6 OUT GND 4 5 GND 7 2 6 Inverting VDD 1 8 VDD IN 2 7 OUT
TC4432
LOCK DIS 3 6 OUT GND 4 5 GND 7 2 6 Non Inverting © 2007 Microchip Technology Inc. DS21424D-page 1 Document Outline 1.0 Electrical Characteristics 2.0 Typical Performance Curves FIGURE 2-1: Supply Current vs. Capacitive Load. FIGURE 2-2: Input Current vs. Input Voltage. FIGURE 2-3: Rise/Fall Time vs. VDD. FIGURE 2-4: tD1 and tD2 Delay vs. VDD. 3.0 Pin Descriptions TABLE 3-1: Pin Function Table 3.1 Supply Input (VDD) 3.2 Control Input (IN) 3.3 Lockout Disable (LOCK DIS) 3.4 Ground (GND) 3.5 Drive Output (OUT) 4.0 Applications Information FIGURE 4-1: Switching Time Test Circuit. 5.0 Packaging Information 5.1 Package Marking Information