MOSFET Driver IC Application and Circuit of the TCK402G

This reference design provides technical information on slew rate control, auto discharge and other built-in functions for designing load switch circuit suitable for USB-PD.

Battery charger circuit of MOSFET Driver IC application and circuit of the TCK402G.


  • Wide input voltage range: VIN = 2.7 to 28V
  • Auto output discharge function
  • Charge pump for VGATE
  • Inrush current suppression circuit
  • Overvoltage lockout (≥28V)
  • Undervoltage lockout (≤2.7V)
  • Protection against reverse current from external back-to-back MOSFETs


  • Can realize switch module combination with 30V Nch MOSFET
  • For mobile appication power management with USB connector
  • Back current protection feature and slew rate control circuit
Slew rate control waveform of MOSFET Driver IC application and circuit of the TCK402G.
Slew rate control waveform

Design Documents

Design Documents contain the documents below.

Design Data

Design Data contains the contents listed below.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Load switch IC 1 2.7 to 28 V External MOSFET Driver IC, WCSP6E
Small Low ON resistance MOSFETs 2 N-ch MOSFET, 30 V, 15 A, 0.0089 Ω@10V, SOT-1220(UDFN6B)

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