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The TC4420/4429 are 6A (peak),single output MOSFET drivers. The TC4429 is an inverting driver (pin-compatible with the TC429), while the TC4420 is a non-inverting driver. These drivers are fabricated in CMOS for lower power, more efficient operation versus bipolar drivers. Both devices have TTL-compatible inputs, which can be driven as high as VDD + 0.3V or as low as 5V without upset or damage to the device. This eliminates the need for external level shifting circuitry and its associated cost and size. The output swing is rail-to-rail ensuring better drive voltage margin, especially during power up/power down sequencing. Propagational delay time is only 55nsec (typ.) and the output rise and fall times are only 25nsec (typ.) into 2500pF across the usable power supply range. Unlike other drivers, the TC4420/4429 are virtually latch-up proof. They replace three or more discrete components saving PCB area, parts and improving overall system reliability.
TC4429 Maximum Ratings
Parameter Name
Value
Power
Single
Peak Output Current (mA)
6000
Output Resistance (RH/RL)(Max. @ 25°C)
2.8/2.5
Max. Supply Voltage (V)
18
Input/Output Delay (td1, td2)1 (ns)
55/55
Configuration
Inverting
Description
Low-Side MOSFET Drivers, 2.0A to 9.0A Peak Output Current
Operating Temp. Range (°C)
-55 to 125
TC4429 Features
·Latch-Up Protected ............ Will Withstand >1.5A Reverse Output Current ·Logic Input Will Withstand Negative Swing Up to 5V ·ESD Protected ..................................................... 4kV ·Matched Rise and Fall Times ...................... 25nsec ·High Peak Output Current ......................... 6A Peak ·Wide Operating Range .......................... 4.5V to 18V ·High Capacitive Load Drive ......................10,000pF ·Short Delay Time ................................. 55nsec Typ. ·Logic High Input, Any Voltage ............. 2.4V to VDD ·Low Supply Current With Logic "1" Input ... 450µA ·Low Output Impedance .................................... 2.5Ω ·Output Voltage Swing to Within 25mV of Ground or VDD
TC4429 Typical Application
·Switch-Mode Power Supplies ·Motor Controls ·Pulse Transformer Driver ·Class D Switching Amplifiers