TC4626/TC4627 are single CMOS high speed drivers with an on-board voltage boost circuit. These parts work with an input supply voltage from 4 to 6 volts. The internal voltage booster will produce a VBOOST potential up to 12 volts above VIN. This VBOOST is not regulated, so its voltage is dependent on the input VDD voltage and output drive loading requirements. An internal undervoltage lockout circuit keeps the output in a low state when VBOOST drops below 7.8 volts. Output is enabled when VBOOST is above 11.3 volts.
The TC4626 and TC4627 are single CMOS high-speed drivers with an integrated on-board voltage boost circuit. These devices operate with an input supply voltage between 4 and 6 volts and utilize an internal voltage booster to generate a potential up to 12 volts above the input voltage. This unregulated boost allows the drivers to raise 5V logic levels to drive higher Vgs MOSFETs, effectively eliminating the need for a separate system power supply.
| Supply Voltage | 4.0 to 6.0 V |
|---|---|
| Peak Output Current | 1.5 A |
| Maximum Switching Frequency | 1.0 MHz |
| Rise Time | < 40 nsec |
| Voltage Booster Output | Up to 12V above Vpp |
| Operating Temperature Range (M Version) | -55°C to +125°C |
The booster is an unregulated voltage tripler circuit that produces a potential up to 12 volts above the input voltage to drive higher Vgs MOSFETs.
The parts work with an input supply voltage from 4 to 6 volts.
The output remains in a low state when the boosted voltage drops below 7.8 volts.