RENESAS R2J20657BNP

Preliminary Datasheet
R2J20657BNP
R07DS0549EJ0101
(Previous No.: R07DS0541EJ0100)
Rev.1.01
Sep 30, 2011
Integrated Driver - MOS FET (DrMOS)
Description
The R2J20657BNP multi-chip module incorporates a high-side MOS FET, low-side MOS FET, and MOS-FET driver
in a single QFN package. The on and off timing of the power MOS FET is optimized by the built-in driver, making this
device suitable for large-current buck converters. The chip also incorporates a high-side bootstrap switch, eliminating
the need for an external SBD for this purpose.
Features
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Based on Intel 6  6 DrMOS Specification.
Built-in power MOS FET suitable for Desktop, Server application.
Low-side MOS FET with built-in SBD for lower loss and reduced ringing.
Built-in driver circuit which matches the power MOS FET
Built-in tri-state input function which can support a number of PWM controllers
High-frequency operation (above 1 MHz) possible
VIN operating-voltage range: 20 Vmax
Large average output current (Max.40 A)
Achieve low power dissipation
Controllable driver: Remote on/off
Support Mid-Voltage PWM signal to enter zero current detection
Double thermal protection: Thermal Warning & Thermal Shutdown
Built-in bootstrapping Switch
Small package: QFN40 (6 mm  6 mm  0.95 mm)
Terminal Pb-free/Halogen-free
Outline
Integrated Driver-MOS FET (DrMOS)
QFN40 package 6 mm × 6 mm
VCIN Reg5V BOOT
GH
VIN
1
10
11
40
THWN
Driver
Pad
High-side
MOS Pad
DISBL#
VSWH
MOS FET Driver
LSDBL#
Low-side MOS Pad
PWM
31
CGND
GL
PGND
20
30
21
(Bottom view)
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Page 1 of 15
R2J20657BNP
Preliminary
Block Diagram
Driver Chip
VCIN
THWN
THWN
Reg5V
UVL
THDN
BOOT
GH
Boot
SW
VIN
Reg5V
DISBL#
High-side
MOS FET
2 μA
Supervisor
CGND
Level Shifter
20 k
CGND
Reg5V
160 k
LSDBL#
Overlap
Protection.
& Logic
3 state signal
Low-side
MOS FET
Reg5V
Reg5V
PWM
VSWH
Zero
Current
Det.
Input Logic
(TTL Level)
(3 state in)
35 k
3 state signal
PGND
CGND
GL
Notes: 1. Truth table for the DISBL# pin
DISBL# Input
Driver Chip Status
"L"
Shutdown (GL, GH = "L")
"Open"
Shutdown (GL, GH = "L")
"H"
Enable (GL, GH = "Active")
2. Truth table for the LSDBL# pin & PWM pin
LSDBL#
PWM
Input
Input
GL Status
"L"
*
"L"
"L" or "H" "Continuous
"Open"
or "H"
Conduction Mode"
"Open"
or "Mid"
3. Output signal from the UVL block
UVL output
Logic Level
4. Output signal from the THWN block
For active
"H"
For shutdown
"L"
VCIN
VL
"Zero Current
Detection" Mode
VH
"H"
Thermal Warning
Logic Level
"L"
Normal
operating
Thermal
Warning
TIC(°C)
TwarnL TwarnH
5. Truth table for the THDN block
Driver IC Temp.
Driver Chip Status
< 150°C
Enable (GL, GH = "Active")
> 150°C
Shutdown (GL, GH = "L")
(latch-off)
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Page 2 of 15
R2J20657BNP
Preliminary
VIN
11
VIN
12
VIN
13
VIN
VIN
VIN
VSWH
GH
CGND
BOOT
VCIN
Reg5V
LSDBL#
Pin Arrangement
10
9
8
7
6
5
4
3
2
1
40
PWM
39
DISBL#
38
THWN
VIN
14
37
CGND
VSWH
15
36
GL
PGND
16
35
VSWH
PGND
17
34
VSWH
PGND
18
33
VSWH
PGND
19
32
VSWH
PGND
20
31
VSWH
VIN
CGND
VSWH
VSWH
PGND
VSWH
PGND
PGND
PGND
PGND
PGND
PGND
PGND
21 22 23 24 25 26 27 28 29 30
(Top view)
Note:
All die-pads (three pads in total) should be soldered to PCB.
Pin Description
Pin Name
LSDBL#
Reg5V
VCIN
BOOT
CGND
GH
VIN
VSWH
PGND
GL
THWN
DISBL#
Pin No.
1
2
3
4
5, 37, Pad
6
8 to 14, Pad
7, 15, 29 to 35, Pad
16 to 28
36
38
39
Description
Low-side gate disable
+5 V logic power supply output
Control input voltage
Bootstrap voltage pin
Control signal ground
High-side gate signal
Input voltage
Phase output/Switch output
Power ground
Low-side gate signal
Thermal warning
Signal disable
PWM
40
PWM drive logic input
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Remarks
When asserted "L" signal, Low-side gate disable
Driver Vcc input
To be supplied +5 V through internal switch
Should be connected to PGND externally
Pin for monitor
Pin for monitor
Thermal warning when over 115°C
Disabled when DISBL# is "L".
This Pin is pulled low when internal IC over the
thermal shutdown level, 150°C.
5 V logic input
Page 3 of 15
R2J20657BNP
Preliminary
Absolute Maximum Ratings
(Ta = 25°C)
Item
Power dissipation
Supply voltage
PWM voltage
Symbol
Pt(25)
Pt(110)
Iout
VIN(DC)
VIN(AC)
VSWH(DC)
VSWH(AC)
VBOOT(DC)
VBOOT(AC)
VCIN
Vpwm
Other I/O voltage
Reg5V voltage
Reg5V current
THWN/THDN current
Vdisbl, Vlsdbl
Vreg5V
Ireg5V
Ithwn, Idisbl
Operating junction temperature
Storage temperature
Tj-opr
Tstg
Average output current
Input voltage
Switch node voltage
BOOT voltage
Notes: 1.
2.
3.
4.
5.
6.
7.
8.
Rating
25
8
40
–0.3 to +20
30
20
30
25
36
–0.3 to +27
Units
W
A
V
V
V
V
V
–0.3 to +5.5 @UVL OFF
–0.3 to +0.3 @UVL ON
–0.3 to Reg5V + 0.3
–0.3 to VCIN + 0.3
–0.3 to +6
–20 to +0.1
0 to 1.0
V
V
mA
mA
–40 to +150
–55 to +150
°C
°C
Note
1
2
2, 4, 6
2
2, 4, 6
2
2, 4, 6
2
2, 4
2, 5
2, 7, 8
2
2, 7
3
3
Pt(25) represents a PCB temperature of 25°C, and Pt(110) represents 110C.
Rated voltages are relative to voltages on the CGND and PGND pins.
For rated current, (+) indicates inflow to the chip and (–) indicates outflow.
This rating is when UVL (Under Voltage Lock out) is ineffective (normal operation mode).
This rating is when UVL (Under Voltage Lock out) is effective (lock out mode).
The specification values indicated "AC" is limited within 10 ns.
This rating is when the external power-source is applied to Reg5V pin.
Reg5V + 0.3 V < 6 V
Safe Operating Area
50
Average Output Current (A)
45
40
35
30
25
20
15
VIN = 12 V
VCIN = Reg5V = 5 V
VOUT = 1.3 V
fPWM = 1 MHz
L = 0.45 μH
10
5
0
0
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
25
50
75
100
PCB Temperature (°C)
125
150
175
Page 4 of 15
R2J20657BNP
Preliminary
Recommended Operating Condition
Item
Input voltage
Symbol
VIN
Rating
4.5 to 16
Units
V
Supply voltage &
Drive voltage
VCIN
4.5 to 5.5
or
8 to 22
V
Note
When the usage of VCIN = 4.5 V to 5.5 V,
VCIN should be connected to Reg5V
(Refer to "Pin Connection")
Electrical Characteristics
(Ta = 25°C, VCIN = 12 V, VSWH = 0 V, unless otherwise specified)
Supply
PWM
input
DISBL#
input
LSDBL#
input
Thermal
warning
Thermal
shutdown
5V
regulator
Note:
Item
VCIN start threshold
VCIN shutdown threshold
UVLO hysteresis
VCIN operating current
Symbol
VH
VL
dUVL
ICIN
Min
7.0
6.6
—
—
Typ
7.4
7.0
0.4
63
Max
7.8
7.4
—
—
Units
V
V
V
mA
VCIN disable current
ICIN-DISBL
—
—
1.2
mA
PWM input high level
VH-PWM
4.1
—
—
V
PWM input low level
PWM input resistance
VL-PWM
RIN-PWM
—
3.5
—
7.5
0.8
15
V
k
PWM input tri-state range
Enable level
Disable level
Input current
VIN-tri
VENBL
VDISBL
IDISBL
THDN on resistance
Low-side activation level
Low-side disable level
RTHDN *
VLSDBLH
VLSDBLL
Input current
Warning temperature
Temperature hysteresis
THWN on resistance
ILSDBL
TTHWN *1
THYS *1
RTHWN *1
THWN leakage current
Shutdown temperature
ILEAK
1
Tstdn *
1.4
2.0
—
—
0.2
2.0
—
–52
100
—
0.2
—
130
—
—
—
2.0
0.5
—
—
–26
115
15
0.5
—
150
3.3
—
0.8
5.0
1.0
—
0.8
–12
130
—
1.0
1.0
—
V
V
V
A
k
V
V
A
°C
°C
k
A
°C
Output voltage
Line regulation
Vreg
Vreg-line
4.95
–10
5.2
0
5.45
10
V
mV
VCIN = 12 V to 16 V
Load regulation
Vreg-load
–10
0
10
mV
Ireg = 0 to 10 mA
1
Test Conditions
VH – VL
fPWM = 1 MHz,
Ton_pwm = 120 ns
DISBL# = 0 V,
PWM = LSDBL# = Open
5.0 V PWM interface
4V – 1V
IPWM(VPWM=4V) – IPWM(VPWM=1V)
5.0 V PWM interface
DISBL# = 1 V
DISBL# = 0.2 V
LSDBL# = 1 V
Driver IC temperature
THWN = 0.2 V
THWN = 5 V
Driver IC temperature
1. Reference values for design. Not 100% tested in production.
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Page 5 of 15
R2J20657BNP
Preliminary
Typical Application
Desktop/Server Application
+12 V
VCIN
BOOT
VIN
THWN
DISBL#
Reg5V
VSWH
PWM
PGND
R2J20657BNP
CGND LSDBL# GH
+5 V
VCIN
GL
BOOT
THWN
VIN
DISBL#
Reg5V
VSWH
PWM
PGND
R2J20657BNP
CGND LSDBL# GH
GL
PWM1
PWM
Control
Circuit
+1.3 V
PWM2
PWM3
PWM4
VCIN
BOOT
THWN
VIN
DISBL#
Reg5V
VSWH
PWM
PGND
Power GND
Signal GND
R2J20657BNP
CGND LSDBL# GH
VCIN
GL
BOOT
THWN
VIN
DISBL#
Reg5V
VSWH
PWM
PGND
R2J20657BNP
CGND LSDBL# GH
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
GL
Page 6 of 15
R2J20657BNP
Preliminary
Pin Connection
(1) Single 12 V Application
0.1 μF
0 to 10 Ω
1.0 μF
VIN
7
6
5
4
3
2
1
BOOT
VCIN
Reg5V
LSDBL#
11
VIN
PAD
12
13
PGND
CGND
PAD
14 VIN
PWM 40
PWM INPUT
DISBL# 39
Thermal Shutdown
THWN 38
CGND 37
R2J20657BNP
15 VSWH
16 PGND
18
26
27
VSWH
25
PGND
31
24
VCIN
33
20
23
10 kΩ
34
32
22
VCIN
VSWH 35
19
21
10 kΩ
GL 36
VSWH
PAD
17
Power GND
CGND
8
CGND
9
GH
10
Low-side Disable Signal INPUT
VIN
10 μF × 4
1.0 μF
VSWH
12 V
CGND
28
29
30
Thermal Warning
0.45 μH
Signal GND
Vout
PGND
PGND
(2) VCIN 5 V Application
0.1 μF
1.0 μF
0 to 10 Ω
8
7
6
5
4
3
2
CGND
BOOT
VCIN
Reg5V
9
GH
10
VIN
10 μF × 4
11
VIN
PAD
12
13
PGND
Low-side Disable Signal INPUT
VSWH
12 V
CGND
PAD
14 VIN
R2J20657BNP
16 PGND
PWM INPUT
Thermal Shutdown
THWN 38
18
26
27
VSWH
25
PGND
31
24
5V
33
20
23
10 kΩ
34
32
22
5V
VSWH 35
19
21
10 kΩ
GL 36
VSWH
PAD
17
Signal GND
PWM 40
DISBL# 39
CGND 37
15 VSWH
Power GND
CGND
1
5.0 V
External
Power Supply
LSDBL#
VIN
28
29
30
Thermal Warning
0.45 μH
Vout
PGND
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
PGND
Page 7 of 15
R2J20657BNP
Preliminary
Test Circuit
Vinput
A
IIN
V VIN
Vcont
A
ICIN
VCIN V
VCIN
BOOT
DISBL#
VIN
R2J20657BNP
Reg5V
VSWH
LSDBL#
5 V pulse
PWM
CGND
Note: PIN = IIN × VIN + ICIN × VCIN
POUT = IO × VO
Efficiency = POUT / PIN
PLOSS(DrMOS) = PIN – POUT
Ta = 27°C
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
PGND
GH
Electric
load
IO
GL
Averaging Output Voltage
Averaging
V
VO
circuit
Page 8 of 15
R2J20657BNP
Preliminary
Typical Data
Power Loss vs. Output Current
Power Loss vs. Input Voltage
1.8
8
VCIN = Reg5V = 5 V
VIN = 12 V
1.7 VOUT = 1.3 V
1.6 fPWM = 600 kHz
7 VCIN = Reg5V = 5 V
Normalized Power Loss
@ VIN = 12 V
Power Loss (W)
VOUT = 1.3 V
f
= 600 kHz
6 LPWM
= 0.45 μH
5
4
3
2
L = 0.45 μH
1.5 IOUT = 25 A
1.4
1.3
1.2
1.1
1.0
0.9
1
0
0.8
0
5
10
15
20
25
30
35
0.7
40
4
6
8
Output Current (A)
12
14
16
Input Voltage (V)
Power Loss vs. Switching Frequency
Power Loss vs. Output Voltage
1.8
1.8
VIN = 12 V
VIN = 12 V
1.7 VCIN = Reg5V = 5 V
1.6 VOUT = 1.3 V
L = 0.45 μH
1.5 IOUT = 25 A
1.4
1.3
1.2
1.1
1.0
Normalized Power Loss
@ fPWM = 600 kHz
1.7 VCIN = Reg5V = 5 V
1.6 fPWM = 600 kHz
Normalized Power Loss
@ VOUT = 1.3 V
10
L = 0.45 μH
1.5 IOUT = 25 A
1.4
1.3
1.2
1.1
1.0
0.9
0.9
0.8
0.8
0.7
0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4
0.7
250
Output Voltage (V)
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
500
750
1000
1250
Switching Frequency (kHz)
Page 9 of 15
R2J20657BNP
Preliminary
Typical Data (cont.)
Power Loss vs. Output Inductance
Power Loss vs. VCIN
1.8
1.8
VIN = 12 V
VIN = 12 V
1.7 VOUT = 1.3 V
1.6 fPWM = 600 kHz
fPWM = 600 kHz
Normalized Power Loss
@ VCIN = Reg5V = 5 V
Normalized Power Loss
@ L = 0.45 μH
1.7 VCIN = Reg5V = 5 V
1.6 VOUT = 1.3 V
1.5 IOUT = 25 A
1.4
1.3
1.2
1.1
1.0
L = 0.45 μH
1.5 IOUT = 25 A
1.4
1.3
1.2
1.1
1.0
0.9
0.9
0.8
0.8
0.7
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
0.7
4.5
5.0
5.5
6.0
VCIN = Reg5V (V)
Output Inductance (μH)
Average ICIN vs. Switching Frequency
90
VIN = 12 V
Average ICIN (mA)
80 VCIN = Reg5V = 5 V
70
VOUT = 1.3 V
L = 0.45 μH
IOUT = 0 A
60
50
40
30
20
10
250
500
750
1000
1250
Switching Frequency (kHz)
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Page 10 of 15
R2J20657BNP
Preliminary
Description of Operation
The DrMOS multi-chip module incorporates a high-side MOS FET, low-side MOS FET, and MOS-FET driver in a
single QFN package. Since the parasitic inductance between each chip is extremely small, the module is highly suitable
for use in buck converters to be operated at high frequencies. The control timing between the high-side MOS FET, lowside MOS FET, and driver is optimized so that high efficiency can be obtained at low output-voltage.
VCIN & DISBL#
The VCIN pin is connected to the UVL (under-voltage lockout) module, so that the built-in 5 V regulator is disabled as
long as VCIN is 7.4 V or less. On cancellation of UVL, the built-in 5 V regulator remains enabled until the UVL input
is driven to 7.0 V or less.
The built-in 5 V regulator is a series regulator with temperature compensation. A ceramic capacitor with a value of 0.1
F or more must be connected between the CGND plane and the Reg5V pin.
The output of 5 V regulator is monitored by the internal Supervisor circuits. When the Supervisor detects this output is
more than 4.3 V (typ.), the driver state becomes active (figure 1.1). Supervisor circuit has hysteresis and its shutdown
level of Supervisor is 3.8 V (typ.).
Figure 1.2 shows the application when the external 5 V regulator is used. When the Reg5V pin is applied into external 5
V, the Supervisor can activate the driver. In this application usage, VCIN should be connected to Reg5V.
The signal on pin DISBL# also enables or disables the circuit. When UVL disables the circuit, the built-in 5 V regulator
does not operate, but when the signal on DISBL# disables the circuit, only output-pulse generation is terminated, and
the 5 V regulator is not disabled.
Voltages from –0.3 V to VCIN+0.3 V can be applied to the DISBL# pin, so on/off control by a logic IC or the use of a
resistor, etc., to pull the DISBL# line up to VCIN are both possible.
VCIN
L
H
H
H
DISBL#

L
H
Open
Reg5V
0
Active
Active
Active
12 V
Driver State
Disable (GL, GH = L)
Disable (GL, GH = L)
Active
Disable (GL, GH = L)
VCIN > 7.4 V
VCIN
VCIN
5V
IN
Reg5V
UVL &
5 V Regulator
To Internal
Logic
OUT
OUT
IN
UVL &
5 V Regulator
Reg5V
External 5 V
To Internal
Logic
Supervisor
Figure 1.1 Typical 12 V Input Application
(Activate Built-in 5 V Regulator)
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Supervisor
Figure 1.2 External 5 V Application
Page 11 of 15
R2J20657BNP
Preliminary
PWM & LSDBL#
The PWM pin is the signal input pin for the driver chip. When the PWM input is high, the gate of the high-side MOS
FET (GH) is high and the gate of the low-side MOS FET (GL) is low.
When the PWM input becomes middle voltage or high impedance, Zero Current Detection (ZCD) function works.
Figure 2 shows the operation diagram of PWM input and inductor current (IL).
PWM
L
H
Middle
or
Open
GH
L
H
L
L
GL
H
L
H
L
PWM
IL
*
*
>0
0
3.3V
1.4V
IL
GH
GL
Figure 2 ZCD Operation Diagram
The equivalent circuit for the PWM-pin input is shown in the next figure. PWM SW is in the ON state during normal
operation; if DISBL#-pin input is Low or Open State, the PWM SW is turned off.
Reg5V
DISBL# signal
18.5k
PWM Pin
Input
Logic
PWM
SW
Tri-state
detection signal
To internal control
12.5k
Figure 3 Equivalent Circuit for the PWM-pin Input
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Page 12 of 15
R2J20657BNP
Preliminary
The LSDBL# pin is the Low Side Gate Disable pin for "Discontinuous Conduction Mode (DCM)" when LSDBL# is
low.
This pin is internally pulled up to Reg5V with 160 k resistor.
When low side disable function is not used, keep this pin open or pulled up to VCIN.
Truth Table for the LSDBL# pin & PWM pin
LSDBL# Input
"L"
"Open" or "H"
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
PWM Input
*
"L" or "H"
"Open" or "Mid"
GL Status
"L"
"Continuous Conduction Mode"
"Zero Current Detection" Mode
Page 13 of 15
R2J20657BNP
Preliminary
THWN & THDN
This device has two level thermal detection, one is thermal warning and the other is thermal shutdown function.
This Thermal Warning feature is the indication of the high temperature status.
THWN is an open drain logic output signal and need to connect a pull-up resistor (ex.51 k) to THWN for Systems
with the thermal warning implementation.
When the chip temperature of the internal driver IC becomes over 115°C, Thermal warning function operates.
This signal is only indication for the system controller and does not disable DrMOS operation.
When thermal warning function is not used, keep this pin open.
"H"
THWN output
Logic Level
"L"
Thermal
warning
Normal
operating
100
TIC (°C)
115
Figure 4 THWN Trigger Temperature
THDN is an internal thermal shutdown signal when driver IC becomes over 150°C.
This function makes High Side MOS FET and Low Side MOS FET turn off for the device protection from abnormal
high temperature situation and at the same time DISBL# pin is pulled low internally to give notice to the system
controller. Once thermal shutdown function operates, driver IC keeps DISBL# pin pulled low until VCIN becomes
under UVL level (or under supervisor shutdown level).
Figure 5 shows the example of two types of DISBL# connection with the system controller signal.
Driver IC Temp.
< 150°C
> 150°C
Driver Chip Status
Enable (GL, GH = "Active")
Shutdown (GL, GH = "L")
5V
To Internal
Logic
10 k
DISBL#
10 k DISBL#
2 μA
To shutdown signal
To Internal
Logic
2 μA
Thermal
Shutdown
Detection
Figure 5.1 THDN Signal to the System Controller
ON/OFF signal
Thermal
Shutdown
Detection
Figure 5.2 ON/OFF Signal from the System Controller
MOS FET
The MOS FETs incorporated in R2J20657BNP are highly suitable for synchronous-rectification buck conversion. For
the high-side MOS FET, the drain is connected to the VIN pin and the source is connected to the VSWH pin. For the
low-side MOS FET, the drain is connected to the VSWH pin and the source is connected to the PGND pin.
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Page 14 of 15
R2J20657BNP
Preliminary
Package Dimensions
JEITA Package Code
P-VQFN40-6x6-0.50
RENESAS Code
PVQN0040KC-A
Previous Code
⎯
MASS[Typ.]
0.10g
NOTE)
b1,c1: DIMENSION BEFORE PLATING
HD
30pin
21pin
2.2
2.0
D
21pin
30pin
20pin
31pin
31pin
E
HE
2.0
0.2
0.7
2.2
40pin
11pin
40pin
3.1
10pin
1pin
0.2
0.2
ZD
2.2
ZE
e
10pin
2.2
1pin
c1
×M S
Lp
A1
b1
A
S
b
c
S
Outer lead detail
y S
Reference Dimension in Millimeters
Symbol
Min Nom Max
D
6.00
E
6.00
A
0.95
A1 0.005
b
0.17 0.22 0.27
b1
0.20
e
0.50
Lp 0.40 0.50 0.60
x
y
0.05
y1
t
HD
6.20
HE
6.20
ZD
0.75
ZE
0.75
c
0.17 0.22 0.27
c1
0.20
Ordering Information
Part Name
R2J20657BNP#G2
R07DS0549EJ0101 Rev.1.01
Sep 30, 2011
Quantity
2500 pcs
Shipping Container
Taping Reel
Page 15 of 15
Notice
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