TCK321G, TCK322G
TOSHIBA CMOS Linear Integrated Circuit Silicon Monolithic
TCK321G, TCK322G
36 V, Dual Inputs – Single Output Power Multiplexer IC
with Over Voltage Protection
The TCK321G and TCK322G are 36 V high input voltage Dual
Inputs-Single Output multiplexer load switch ICs. It has Over Voltage
Protection featuring low switch ON resistance, high output current
and wide input voltage operation. Switch ON resistance is only 98
mΩ at 4.5 V, - 1.0 A load conditions. And these feature a slew rate
control driver, thermal shutdown and flag function. Also it can block
reverse current if switch turned off. Output current is available up to
2.0 A per channel. Thus this is suitable for power management
selector such as Battery Charge application.
This device is available in 0.5 mm pitch small package WCSP16C
(1.9 mm x 1.9 mm, t: 0.5 mm (typ.)).Thus this devices is ideal for
portable applications that require high-density board assembly such
as mobile phone.
WCSP16C
Weight
:
3.9 mg ( typ.)
Feature
•
•
•
•
•
•
•
•
•
•
•
•
High output current: I
OUT
(DC) = 2 A, per channel
Low ON resistance
:
R
ON
= 98 mΩ (typ.) at V
IN
= 4.5 V, - 1.0 A, per channel
Wide input voltage operation: V
IN
= 2.3 to 36 V
Over Voltage Lockout
:
12.0 V, 15.0 V (typ.)
Under Voltage Lockout: 2.9 V (typ.)
Reverse current blocking per channel(SW OFF state)
Inrush current reducing circuit.
Auto selection mode
Manual selection mode
Break Before Make switch
Thermal Shutdown function
Small package: 0.5 mm pitch WCSP16C (1.9 mm x 1.9 mm, t: 0.5 mm (typ.)), PD = 1.65 W
Top marking
Index
321: TCK321G
322: TCK322G
Start of commercial production
2015-10
1
2015-10-20
TCK321G, TCK322G
Absolute Maximum Ratings
(Ta = 25°C)
Characteristics
Input voltage
Control voltage
Output voltage
FLAG voltage
Output current
Power dissipation
Operating temperature range
Junction temperature
Storage temperature
Symbol
V
INA,
V
INB
V
CNT,
V
SEL
V
OUT
V
FLAG
DC
I
OUT
P
D
T
opr
Tj
T
stg
Pulse
Rating
-0.3 to 40
-0.3 to 6
-0.3 to 18
-0.3 to 6
2.0
A
3.0
1.65
−40
to 85
150
−55
to 150
(Note 1)
(Note 2)
W
°C
°C
°C
Unit
V
V
V
V
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: 1 ms pulse, 1% duty cycle
Note2: Rating at mounting on a board: FR4 board. ( 40 mm
×
40 mm
×
1.6 mm, Cu 4 layer )
Pin Assignment (Top view/Bottom bump)
1
A
2
3
4
1
A
FLAG
V
INA
V
INA
V
INA
2
V
SEL
V
OUT
V
OUT
V
OUT
3
CNT
V
OUT
V
OUT
V
OUT
4
GND
V
INB
V
INB
V
INB
B
B
C
D
C
D
Product list
Part number
TCK321G
TCK322G
Over voltage lockout
VINA
12.0 V (typ.)
15.0 V (typ.)
Over voltage lockout
VINB
12.0 V (typ.)
15.0 V (typ.)
FLAG monitored in
auto selection mode
Q1
Q1
Please ask your local retailer about the devices with other OVLO, logic and functions.
2
2015-10-20
TCK321G, TCK322G
Block Diagram
V
INA
V
INA
V
INA
OVLO/
UVLO
Reverse Current Blocking
Q
1
V
INB
V
INB
V
INB
OVLO/
UVLO
Reverse Current Blocking
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
Inrush Current
Reducing
Charge
Pump
Control
Logic
Thermal
Shutdown
Q
2
FLAG
CNT
Q
3
Open Drain
VOP
V
SEL
GND
PIN Description
PIN
A1
A2
A3
A4
B1,C1,D1
B4,C4,D4
B2,C2,D2
B3,C3,D3
Name
FLAG
V
SEL
CNT
GND
V
INA
,V
INB
V
OUT
Description
Open drain acknowledge signal output.
Input selector function. It is internally connected to VOP(Pull up).
Mode control function. It is internally connected to GND(Pull down)
Ground
Input. Each has Over Voltage Lock Out (OVLO) and Under Voltage Lock Out
function (UVLO).
Output.
3
2015-10-20
TCK321G, TCK322G
Operation Logic Table
CNT Low
V
INA
Q
1
V
INB
Q
2
V
SEL
Low
FLAG Q
3
Reverse current block
V
INA
Q
1
V
INB
Q
2
V
SEL
High
FLAG Q
3
Supplied V
INB
;
Q
2
ON, Q
1
and Q
3
OFF
Reverse current block
Supplied V
INA
and V
INB
;
Q
1
and Q
3
ON, Q
2
OFF
OFF
OFF
OFF
Q
1
Active / Q
2
Active
CNT High
OFF
ON
ON (When V
INA
or V
INB
is out of
regular voltage )
Q
1
Active / Q
2
Inactive
ON
OFF
ON (When V
INA
or V
INB
is out of
regular voltage )
Auto selection mode
Supplied V
INA
;
Q
1
and Q
3
ON, Q
2
OFF
Q
1
Inactive / Q
2
Active
4
2015-10-20
TCK321G, TCK322G
DC Characteristics (Ta = -40 to 85°C)
Ta = 25°C
Characteristics
Symbol
Test Condition
Min
Input voltage
V
SEL,
CNT High-level input voltage
V
SEL,
CNT Low-level input voltage
Over voltage lock out (OVLO)
rising threshold
Over voltage lock out (OVLO)
falling threshold
Under voltage lock out (UVLO)
rising threshold
Under voltage lock out (UVLO)
falling threshold
Quiescent current (Switch ON state)
V
IN
V
IH
V
IL
V
OVL_RI
V
OVL_FA
V
UVL_RI
V
UVL_FA
I
Q(ON)
―
V
INA
, V
INB
= 2.3 to 36 V
V
INA
, V
INB
= 2.3 to 36 V
TCK321G
TCK322G
―
―
―
Q1 or Q2 = ON mode,
I
OUT
= 0 mA , VIN=5.0 V
CNT and V
SEL
:
Low,
V
INA or
V
INB
=
5.0 V,
V
OUT
= 0 V
CNT and V
SEL
:
Low,
V
IN
=
Open, V
OUT
= 5 V
CNT and V
SEL
:
Low,
V
IN
=
0 V, V
OUT
= 5.0 V
I
OUT
=
-1.0 A, V
IN
=
4.5 V
V
IO
=
5.0 V
I
SINK
=
1 mA, V
IO
=
5.0 V
―
2.3
1.6
―
―
―
―
―
―
―
―
―
―
―
―
―
―
Typ.
―
―
―
12.0
15.0
V
OVL_RI
-
0.5
2.9
V
UVL_RI
-
0.3
140
Max
36
―
0.4
―
―
―
―
―
―
―
―
―
―
2
0.4
―
Min
2.3
1.6
―
10.5
13.4
―
2.3
―
―
―
―
―
―
―
―
―
Max
36
―
0.4
13.5
V
16.6
―
3.5
―
200
V
V
V
μA
μA
μA
μA
mΩ
μA
V
kΩ
V
V
V
Ta =
−40
to 85°C
Unit
Quiescent current (Switch OFF state)
I
Q(OFF)
60
90
Switch OFF state current
Reverse blocking current
On resistance
FLAG Leak current
FLAG Output low voltage
V
SEL
, CNT Pull up resistance
I
OFF
I
RB
R
ON
I
LEAK
V
OL
R
VC
0.1
0.1
98
―
―
500
1
10
170
2
0.4
―
AC Characteristics (Ta = 25°C)
Characteristics
Symbol
Test Condition (Figure 1, 2, 3, 4)
V
UVL
< V
IN
(5 V) < V
OVL
, R
L
= 50
Ω
Hold time
t
HD
Initial start up V
OUT
off state to charge-pump on
state
V
IN
> V
OVLO_RI
, V
IN
rising = 2 V/μs,
R
L
= 50
Ω
,
V
OUT
to 80% of V
OVLO_RI
V
UVL
< V
IN
(5 V) < V
OVL
, R
L
= 50
Ω
,
CNT low to high to V
OUT
to 80% of V
IN
V
IN
= 5.0 V , R
L
= 50
Ω
, C
L
= 1.0 uF
V
IN
= 5.0 V , R
L
= 50
Ω
, C
L
= 1.0 uF
V
IN
= 5.0 V , R
L
= 50
Ω
,
V
IN
= 5.0 V , R
L
= 50
Ω
,
―
15
―
ms
Min
Typ.
Max
Unit
V
OUT
OVP off time
t
OVP
―
3
―
μs
V
OUT
off time
V
OUT
rise time
V
OUT
fall time
V
IN
selection delay time
Break Before Make time
t
OFF
t
r
t
f
t
SEL
t
BBM
―
―
―
―
―
0.5
2
0.12
0.5
15
―
―
―
―
―
μs
ms
ms
μs
ms
5
2015-10-20
Test/Measurement
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