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1. Overview
The TCK401G driver IC can drive two N-channel MOSFETs which has back-to-back connection
and contribution high-current bidirectional switch designed to enable rapid charging of host and
client devices specified by the USB Power Delivery (USB PD) Specification.
Using low-on-resistance N-channel MOSFETs, the TCK401G allows a bidirectional switch to be
configured minimum power dissipation and heat generation. The USB PD Specification requires not
only high charging voltage but also high charging current to reduce the charging time. The
TCK401G operates wide input voltage range from 2.7V to 28V so the maximum 20V input can be
applied specified by USB PD. Also the slew rate control driver contributes avoiding unexpected
inrush current during switching transitions in order to protect next stage electronic circuits. In
addition the auto output discharge function at switch-off feature can be used for applications
requiring stringent power management without any concern about time lag between a switch-off
signal and the output voltage reaching to zero. This reference guide focuses on the slew rate
control and the auto output discharge function of the TCK401G.
For details of other features and functions of the TCK401G, see the datasheet.
To download the datasheet for the TCK401G →
1.1.
Target applications
Power management for mobile devices
Charging circuits for devices with a USB connector
Circuit example
* Toshiba offers a portfolio of MOSFETs which suit these applications.
For details of MOSFETs →
*
Toshiba offers TVS diodes which suit charger and other high-current applications.
For details of TVS diodes →
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Toshiba Electronic Devices & Storage Corporation
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RD002-RGUIDE-01
2018-03-07
Rev. 1
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