TCK401G, TCK402G
TOSHIBA CMOS Linear Integrated Circuit Silicon Monolithic
TCK401G, TCK402G
External FET Driver IC
The TCK401G and TCK402G are 28 V high input voltage
External FET driver ICs. They have wide input voltage range. And
they feature a slew rate control driver with small package WCSP6E
(0.8 mm x 1.2 mm, t: 0.55 mm). Also they can block reverse current
if switch turned off by using external series FET. Thus they are
suitable for power management selector such as Battery Charge
application.
.
Feature
Weight: 1 mg(typ.)
High maximum input voltage: VIN max = 40 V
Wide input voltage range: VIN = 2.7 to 28 V
Auto output discharge
Charge pump circuit
Inrush current reducing circuit.
Over voltage lock out (Over 28 V)
Under voltage lock out (Under 2.7 V)
Reverse current protection by External Back to Back MOSFET
Top marking (Top view)
1
A
401
B
2
A1: VGATE
B1: VSRC
C1: DIS
A2: VIN
B2: GND
C2: VCT
C
401: TCK401G
402: TCK402G
Start of commercial production
2017-10
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TCK401G, TCK402G
•
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
Input voltage
VIN
-0.3 to 40
V
Control voltage
VCT
-0.3 to 6
V
Output GATE voltage
VGATE
-0.3 to VIN_opr + VGS
V
SRC voltage
VSRC
-0.3 to VGATE
V
DIS voltage
VDIS
-0.3 to 40
V
Power dissipation
PD
800 (Note 1)
mW
Operating temperature range
Topr
−40 to 85
°C
Junction temperature
Tj
150
°C
Storage temperature
Tstg
−55 to 150
°C
Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant
change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating
conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings. Please design the
appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook (“Handling
Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report and estimated
failure rate, etc).
Note1: Rating at mounting on a board: FR4 board. ( 40 mm × 40 mm × 1.6 mm, Cu 4 layer )
•
Operating Conditions
Characteristics
Min.
Typ.
Max.
Unit
VIN _opr
2.7
5.0
28
V
CIN
0.1
1
µF
CGATE
2000
pF
CONTROL High-level input voltage
VIH
1.6
V
CONTROL Low-level input voltage
VIL
0.4
V
Input operation voltage
Capacitance
© 2017-2019
Toshiba Electronic Devices & Storage Corporation
Symbol
2
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TCK401G, TCK402G
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Pin Assignment (Top view)
•
WCSP6E
1
•
2
A
Pin #
Name
Pin #
Name
A1
VGATE
A2
VIN
B1
VSRC
B2
GND
C1
DIS
C2
VCT
B
C
•
Product list
Part number
TCK401G
TCK402G
•
VCT function
Active High
Active Low
VCT resistance
Pull down
Pull down
Block Diagram
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TCK401G, TCK402G
TCK401G PIN Description
•
PIN
A1
Name
VGATE
Description
Gate-Driver Output.
A2
VIN
Supply voltage input.
B1
VSRC
B2
GND
Recommend connecting VSRC terminal to the common source connection of the
external MOSFETs.
Ground
C1
DIS
Output Discharge terminal.
C2
VCT
Mode control input terminal. When VCT=High turn the external MOSFETs on,
VCT=Low, turn the external MOSFETs off.
TCK402G PIN Description
PIN
A1
Name
VGATE
Description
Gate-Driver Output.
A2
VIN
Supply voltage input.
B1
VSRC
B2
GND
Recommend connecting VSRC terminal to the common source connection of the
external MOSFETs.
Ground
C1
DIS
Output Discharge terminal.
C2
VCT
Mode control input terminal. When VCT=Low turn the external MOSFETs on,
VCT=High, turn the external MOSFETs off.
•
TCK401G Operation Status Table
2.7V ≤ VIN ≤ 28 V (Ta = -40 to 85°C)
VCT
VGATE
Discharge Q1
comment
High
ON
（VIN + VGS）
OFF
Driver ON mode
OFF
ON
Driver OFF mode
Open
Low
TCK402G Operation Status Table
2.7V ≤ VIN ≤ 28 V (Ta = -40 to 85°C)
VCT
VGATE
Discharge Q1
comment
Low
Open
ON
（VIN + VGS）
OFF
Driver ON mode
High
OFF
ON
Driver OFF mode
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TCK401G, TCK402G
DC Characteristics (Ta = -40 to 85°C)
Ta = −40 to 85℃
Ta = 25℃
Characteristics
Symbol
Typ.
Max.
Min
Max
VCT: High, VIN = 5.0 V
121
222
µA
VCT: High, VIN = 9.0 V
144
283
µA
VCT: High, VIN = 12 V
159
294
µA
VCT: High, VIN = 20 V
198
376
µA
VCT: Low, VIN = 5.0 V
121
222
µA
VCT: Low, VIN = 9.0 V
144
283
µA
VCT: Low, VIN = 12 V
159
294
µA
VCT: Low, VIN = 20 V
198
376
µA
VCT: Low, VIN = 5.0 V
3.0
4.8
µA
VCT: Low, VIN = 9.0 V
5.9
8.2
µA
VCT: Low, VIN = 12 V
8.0
11.2
µA
VCT: Low, VIN = 20 V
13.8
19.2
µA
VCT: High, VIN = 5.0 V
3.0
4.8
µA
VCT: High, VIN = 9.0 V
5.9
8.2
µA
VCT: High, VIN = 12 V
8.0
11.2
µA
VCT: High, VIN = 20 V
13.8
19.2
µA
VIN = 3 V
4.0
2.8
5.1
V
VIN = 5 V
6.5
5.1
7.9
V
VIN = 9.0 V
6.5
5.1
7.9
V
8.5
6.9
10.0
V
38
µA
IQ(ON)
TCK402G
TCK401G
Standby current (OFF state)
IQ(OFF)
TCK402G
GATE Drive voltage(VGATE-VIN)
VGS
12 V ≤ VIN ≤
Output current
Unit
Min.
TCK401G
Input quiescent current (ON state)
(Note 2)
Test Condition
28 V
IGATE(ON) VIN = 5 V
DIS resistance
RDIS
21
kΩ
Control pull down resistance
RCT
VCT= 5 V
600
kΩ
Note 2:
This parameter is warranted by design.
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TCK401G, TCK402G
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AC Characteristics (Ta = 25°C, VIN = 5 V, CGATE = 2000 pF)
Characteristics
Min.
Typ.
Max.
Unit
tON
Initial startup time of VGATE (Note 3)
voltage from 0 V to VIN +1 V
0.58
0.8
ms
VGATE OFF time
tOFF
VGATE = 0.5 V
16.6
µs
VGATE rise time
tr
VGATE rising from VIN +1 V to VIN +3 V
0.2
ms
VGATE fall time
tf
VGATE falling from VIN +3 V to VIN +1 V
1.5
µs
Min.
Typ.
Max.
Unit
This parameter is warranted by design.
AC Characteristics (Ta = 25°C, VIN = 9 V, CGATE = 2000 pF)
Characteristics
Symbol
Test Condition (Figure 1,2)
VGATE ON time
tON
Initial startup time of VGATE (Note 4)
voltage from 0 V to VIN +1 V
0.78
1.0
ms
VGATE OFF time
tOFF
VGATE = 0.5 V
19.7
µs
VGATE rise time
tr
VGATE rising from VIN +1 V to VIN +4 V
0.35
ms
VGATE fall time
tf
VGATE falling from VIN +4 V to VIN +1 V
1.6
µs
Min.
Typ.
Max.
Unit
Note 4:
•
Test Condition (Figure 1,2)
VGATE ON time
Note 3:
•
Symbol
This parameter is warranted by design.
AC Characteristics (Ta = 25°C, VIN = 12 V, CGATE = 2000 pF)
Characteristics
Symbol
Test Condition (Figure 1,2)
VGATE ON time
tON
Initial startup time of VGATE (Note 5)
voltage from 0 V to VIN +1 V
0.92
1.2
ms
VGATE OFF time
tOFF
VGATE = 0.5 V
21.3
µs
VGATE rise time
tr
VGATE rising from VIN +1 V to VIN +5 V
0.6
ms
VGATE fall time
tf
VGATE falling from VIN +5 V to VIN +1 V
1.7
µs
Note 5:
This parameter is warranted by design.
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TCK401G, TCK402G
Timing chart
tf
tr
VIN + 3 V for VIN = 5 V
VIN + 4 V for VIN = 9 V
VIN + 5 V for VIN = 12 V
VGATE
VIN + 1V
0.5V
0V
tOFF
tON
VIH
VCT
CNT
VIL
50%
50%
Fig.1 Active High (TCK401G)
tf
tr
VIN + 3 V for VIN = 5 V
VIN + 4 V for VIN = 9 V
VIN + 5 V for VIN = 12 V
VGATE
VIN + 1V
0.5V
0V
tOFF
tON
VIH
VCT
CNT
50%
50%
VIL
Fig.2 Active Low (TCK402G)
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TCK401G, TCK402G
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Application Note
•
Application circuit example
1)
Input and Output capacitor
An input capacitor (CIN) and an output capacitor (COUT) are recommended for the stable operation of TCK401G and
TCK402G. And it is effective to reduce voltage overshoot or undershoot due to sharp changes in output current and also
for improved stability of the power supply. When used, place CIN and COUT more than 1.0μF as close to TCK40xG to
improve stability of the power supply.
2)
VCT pin
VCT pin for TCK401G and TCK402G is operated by the control voltage and has Schmitt trigger. VCT pin has a tolerant
function such that it can be used even if the control voltage is higher than the input voltage.
3)
VSRC Pin
For Dual MOSFET Driver, VSRC works to short between VGATE and MOSFET source when Driver IC turn off.
If there are enough margins of VGS of MOSFET, VSRC terminal Open state is no problem.
For Single MOSFET Driver, if there is enough margin of VGS of MOSFET, VSRC pin Open state is no problem. If there are
not enough margins, we recommend connecting VSRC and VOUT. If connect VSRC and VOUT, tOFF time become longer
because of COUT. Therefore, please consider enough margins for MOSFET selection.
4)
DIS Pin
If discharge function is needed when Driver IC turns off, please connect DIS Pin to VOUT. If no need, DIS Pin Open
state is no problem.
5)
Over Voltage Protection off time (tOVP)
Over Voltage (VIN is over VIN_opr max) Protection off time (tOVP) is similar to VGATE OFF time (tOFF).
Timing chart
VGATE
tOVP
V
IN
CNT
VIN_opr max
Fig.3 tOVP
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TCK401G, TCK402G
Representative Typical Characteristics
IQ(ON) - VIN
IQ(OFF) - VIN
VGATE - VIN
IGATE(ON) - Ta
tON - Ta
tOFF - Ta
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TCK401G, TCK402G
tON Response（VIN=5V） (TCK401G)
tON Response（VIN=12V） (TCK401G)
tOFF Response（VIN=5V） (TCK401G)
tOFF Response（VIN=12V） (TCK401G)
Note: The above characteristics curves are presented for reference only and not guaranteed by production test,
unless otherwise noted.
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TCK401G, TCK402G
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Package dimension
Unit: mm
Weight: 1 mg (typ.)
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TCK401G, TCK402G
Land pattern dimensions (for reference only)
Unit： mm
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TCK401G, TCK402G
RESTRICTIONS ON PRODUCT USE
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including without limitation, this document, the specifications, the data sheets and application notes for Product and the precautions and
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