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TC429
  • TC429
  • TC429

TC429

Not Recommended for new designs

The TC429 is a high-speed, single output, CMOS-level translator and gate driver. Designed specifically to drive highly capacitive power MOSFET gates, the TC429 features 2.5 Ω output impedance and 6 A peak output current drive. This device can typically switch a 2,500 pF capacitive load in 25 ns, with a typical delay time through the device of 60 ns. Rapidly switching the load will minimize MOSFET transition power loss. The device will accept TTL and CMOS input logic voltages, or any voltage input up to 18 V without damage, producing an output signal which will swing within 25 mV of the power rails. Logic input current is under 10 µA, making direct interface to CMOS/bipolar switch-mode power supply controllers easy, input "speed-up" capacitors are not...

Microchip Technology TC429 Product Info

16 April 2026 0

Parameters

Capacitive Load Drive

2,500 pF in 35 ns 

MOSFET Driver Type

Low Side

Supply Voltage Max V (volt)

18

Peak Sink Current A (ampere)

6

Peak Source Current A (ampere)

6

Propagation Delay tD1 ns (nanosecond)

53

Propagation Delay tD2 ns (nanosecond)

60

Sink Resistance Ω (ohm)

2.5

Source Resistance Ω (ohm)

2.5

Fall Time tF ns (nanosecond)

35

Rise Time tR ns (nanosecond)

35

# of Outputs

1

Output Type

Inverting

Integrated MOSFETs

External

Peak Low-Side Source Current (Ampere)

6

Supply Voltage Min V (volt)

4.5

Low-Side Source Resistance Typ (Ohms) Ω (ohm)

1.8

Low-Side Sink Resistance Typ (Ohms) Ω (ohm)

1.5

Low-Side Rise Time (ns)

23

Low-Side Fall Time (ns)

25

Low-Side Turn-On Prop Delay (ns)

53

Low Side Turn-off Propagation delay (ns)

60

Temp Range (T-Junction) Min °C (degrees Celsius)

-

Temp Range (T-Junction) Max °C (degrees Celsius)

150

Temp Range (T-Ambient) Min °C (degrees Celsius)

-55

Temp Range (T-Ambient) Max °C (degrees Celsius)

125

Output Configuration

Low-Side

Features

  • High 6 A Peak Output Current
  • Wide 7 to 18 V Operating Voltage Range
  • High-Impedance CMOS Logic Input
  • Logic Input Threshold Independent of Supply Voltage
  • 5 mA Maximum With Logic 1 Input
  • 500 µA Maximum With Logic 0 Input
  • Output Voltage Swing Within 25 mV of Ground or VDD
  • Short 75 ns Maximum Delay Time
  • 35 ns Maximum Rise and Fall Time With 2,500 pF Capacitive Loads

    • Description

    The TC429 is a high-speed, single output, CMOS-level translator and gate driver. Designed specifically to drive highly capacitive power MOSFET gates, the TC429 features 2.5 Ω output impedance and 6 A peak output current drive. This device can typically switch a 2,500 pF capacitive load in 25 ns, with a typical delay time through the device of 60 ns. Rapidly switching the load will minimize MOSFET transition power loss. The device will accept TTL and CMOS input logic voltages, or any voltage input up to 18 V without damage, producing an output signal which will swing within 25 mV of the power rails. Logic input current is under 10 µA, making direct interface to CMOS/bipolar switch-mode power supply controllers easy, input "speed-up" capacitors are not required, and the CMOS design minimizes quiescent power supply current requirements. For noninverting applications, or applications requiring latch-up protection, see the MCP1406/7 data sheet.

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