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Toshiba Adds Five New MOSFET Gate Driver ICs that Will Help Reduce Device Footprints

- TCK42xG Series supports external back-to-back MOSFETs -

June 7, 2022

Toshiba Electronic Devices & Storage Corporation

Toshiba Adds Five New MOSFET Gate Driver ICs that Will Help Reduce Device Footprints

KAWASAKI, Japan—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has added five products to its lineup of MOSFET gate driver ICs in the TCK42xG Series for mobile devices such as wearables. The new products in the series are equipped with an overvoltage lockout function and control the gate voltage of an external MOSFET according to the input voltage.

The new products are: “TCK420G” for 24V power lines; “TCK422G” and “TCK423G” for 12V power lines; “TCK424G” for 9V power lines; and “TCK425G” for 5V power lines. Along with the already launched “TCK421G” for 20V power lines, they are available now.

With this addition, TCK42xG series now allow users to select a gate-source voltage from two types, 10V and 5.6V, offering coverage of more MOSFETs. In addition, the lineup of the different detection voltages for the input overvoltage lockout function allows the products to be used for power lines from 5V to 24V. When combined with an external back-to-back MOSFET, they are also suitable for configuring a load switch circuit (Fig.1) or a power multiplexer circuit (Fig.2). with a reverse current blocking function. Furthermore, with their built-in charge pump circuit supporting a wide range of input voltages, from 2.7V to 28V, they provide stable voltage between the gate and source of an external back-to-back MOSFET with intermittent operation. This allows large currents to be switched.

Housed in a WCSP6G[1] package, one of the smallest in the industry[2], the TCK42xG series realizes high density mounting for small devices, such as wearables and smartphones, helping to reduce their footprint.

Toshiba has also developed “Power multiplexer circuit” Reference Design, a reference design example for a power multiplexer that utilizes the functions of TCK42xG. It is available on Toshiba’s website from today.

Notes :
[1] A 1.2mm × 0.8mm chip scale package
[2] Among MOSFET gate driver ICs, Toshiba survey as of June 2022.

Fig.1: Load switch circuit (Single High-side, Back-to-Back)
Fig.1: Load switch circuit (Single High-side, Back-to-Back)
Fig.2: Power multiplexer circuit
Fig.2: Power multiplexer circuit
Fig.3: Power multiplexer circuit board
Fig.3: Power multiplexer circuit board

Applications

  • Wearables
  • Smartphones
  • Notebook PC, tablets
  • Storage equipment, etc.

Features

  • Gate-source voltage setting (5.6V, 10V) depending on input voltage with a built-in charge pump circuit
  • Over voltage lock out supports 5V to 24V
  • Low input OFF current: IQ (OFF) = 0.5μA (max) @VIN=5V

Main Specifications

(Unless otherwise specified, Ta=25°C)

Part number

TCK420G

TCK421G

[3]

TCK422G

TCK423G

TCK424G

TCK425G

Package Name WCSP6G
Size  (mm) 1.2 × 0.8 (typ.), t=0.35 (max)

Operating

ranges

Input operation voltage

VIN_opr (V)

@Ta= -40

 to 85°C

2.7-28
Electrical characteristics

VIN UVLO threshold, VOUT falling

VIN_UVLO

 typ./max (V)

@Ta= -40

 to 85°C

2.0/2.5

VIN OVLO threshold,

VOUT falling

VIN_OVLO

 min/max (V)

@Ta= -40

 to 85°C

26.50

/28.50

22.34

/24.05

13.61

/14.91

10.35

/11.47

5.76

/6.87

Standby current

(OFF state)

IQ(OFF) max (μA)

@VIN=5V,
Ta= -40

 to 85°C

0.5

GATE Drive voltage

 (VGATE1-VIN)

(VGATE2-VOUT)

VGS typ. (V)

@VIN=

12V/20V

10/10

10/10

10/-

5.6/-

-/-

-/-

GATE Drive voltage

 (VGATE1-VIN)

(VGATE2-VOUT)

VGS typ. (V)

@VIN=

5V/9V

10/10

10/10

10/10

5.6/5.6

5.6/5.6

5.6/-

VGS ON time

tON typ. (ms)

@VIN=5V,

CGATE1,2=

4000pF

2.9

VGS OFF time

tOFF typ. (μs)

@VIN=5V,

CGATE1,2=

4000pF

52 23

OVLO

VGS turn OFF time

tOVP typ. (μs)

@CGATE1,2=

4000pF

31

34

41

16

18

19

Sample Check & Availability Buy Online

Buy Online

Buy Online Buy Online

Buy Online

Buy Online

Note:
[3] Already released product

Follow the links below for more on the new product.
TCK420G
TCK422G
TCK423G
TCK424G
TCK425G

To check availability of the new products at online distributors, visit:

TCK420G
Buy Online

TCK422G
Buy Online

TCK423G
Buy Online

TCK424G
Buy Online

TCK425G
Buy Online

Customer Inquiries

Small Signal Device Sales & Marketing Dept.

Tel: +81-44-548-2215

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