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FAN6292BMX/FAN6292MX
Compact Secondary-Side
Synchronous Rectifier Control
with USB Type-C Control
FAN6292BMX/FAN6292MX are highly integrated, secondary-side
power adaptor controllers compatible with Type-C control. Internally
adopted synchronous rectifier control helps for less BOM counts as well
as easy design.
www.onsemi.com
1
FAN6292BMX/FAN6292MX are also a source only USB Type-C
controllers which are optimized for mobile chargers and power adapters.
It supports standard 3 A VBUS current level. N-Channel MOSFET is
compatible as a load switch, and helps to reduce BOM cost.
8
FAN6292BMX/FAN6292MX incorporate adaptive output under-voltage
protection to improve system reliability.
TSSOP-8
MARKING DIAGRAM
Features
Type-C Control for Standard 3 A VBUS Current
N-Channel MOSFET Control as a Type-C Load Switch
Internal Synchronous Rectifier Control Circuit
Protections for Safe Operation; Output Under-Voltage-Protection
ZXYTT
6292
TM
Typical Applications
Battery Chargers for Smart Phones, Feature Phones, and Tablet PCs
AC-DC Adapters for Portable Devices that Require CV/CC Control
1st Line:
F: Corporate Logo
Z: Assembly Plant Code
X: Year Code
Y: Week Code
TT: Die Run Code
2nd Line:
6292 : IC Part Name for
FAN6292MX
6292B: IC Part Name for
FAN6292BMX
3rd Line:
T: Package Type (M=SOIC)
M: Manufacture Flow Code
PIN CONNECTIONS
CC2
1
8
CC1
BLD
/ AUX
2
7
GND
LGATE
3
6
LPC
VIN
4
5
GATE
(TOP View)
ORDERING INFORMATION
See detailed ordering and shipping information in the
package dimensions section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2016
February 2017- Rev. 1.0
1
Publication Order Number:
FAN6292BMX/FAN6292MX
FAN6292MX/FAN6292BMX
L
USB Type-C
Load
Switch
Transformer
VBUS
RSNU CSNU
TH
CIN1
AC IN
SR
MOSFET
Lm
BD
CIN2
COUT
CBUS
VBUS
CC1
DSNU
RHV
Fuse
Q2
RGATE
Q1
VBUS
RF
3 GATE
2 FUNC
2 GND
RCS
5
GATE
6
LPC
CS 1
DVDD
RVSH
CVS
RVSL
CC1
8
CC1
CC2
1
CC2
LGATE 3
FAN6292
BMX
VIN 4
GND
GND
TX1+
RX1+
TX1-
RX1-
VBUS
VBUS
CC1
SBU2
D+
D-
D-
D+
SBU1
CC2
VBUS
VBUS
RX2-
TX2-
RX2+
TX2+
GND
GND
VBUS
CC2
VBUS
GND 7
VDD 4
VS 5
CVDD
BLD/
2
AUX
FAN105B
Figure 1 FAN6292BMX Typical Application Schematic
L
RSNU CSNU
TH
CIN1
AC IN
SR
MOSFET
Lm
BD
CIN2
USB Type-C
Load
Switch
Transformer
COUT
CBUS
VBUS
CC1
DSNU
RHV
Fuse
RGATE
1 HV
Gate 4
2 NC
CS 3
9 FB
VDD 5
10 GND
VS 6
8 IMIN
FMAX 7
RF
CVDD
Q1
RCS
DVDD
RVSH
CVS
RVSL
5
GATE
6
LPC
CC1
8
CC1
CC2
1
CC2
LGATE 3
FAN6292
MX
VIN 4
GND 7
BLD/
2
AUX
FAN602
Figure 2 FAN6292MX Typical Application Schematic
www.onsemi.com
2
VBUS
GND
GND
TX1+
RX1+
TX1-
RX1-
VBUS
VBUS
CC1
SBU2
D+
D-
D-
D+
SBU1
CC2
VBUS
VBUS
RX2-
TX2-
RX2+
TX2+
GND
GND
VBUS
CC2
VBUS
FAN6292BMX/FAN6292MX
LGATE
VIN
BLD / AUX
Internal Bias (VDD)
CC1
CC2
Type-C
Detection
Undershoot
Detection
VIN-ON / VIN-OFF
Calculate
VLPC-EN
VLPC-EN
Green Mode
GATE
Driver
S
Q
PWM
Block
LPC
R
VLPC-TH
Line
Detection
Function
VCT
RESET
Enable
iCHR
iDISCHR
VIN
CT
RatioLPC
RatioRES
(1µA/V)
(0.445µA/V)
GATE
Figure 3 FAN6292BMX/FAN6292MX Function Block Diagram
www.onsemi.com
3
GND
FAN6292BMX/FAN6292MX
PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
1
CC2
2
BLD
/ AUX
3
LGATE
4
VIN
5
GATE
6
LPC
7
GND
8
CC1
Description
Configuration Channel 2. This pin is used to detect connections of Type-C
cables and connectors. It is tied to the USB Type-C CC2.
Bleeder and AUX function. Discharging path of output capacitor when UFP
detachment is acknowledged. In addition, information is delivered to primary to
enhance output performance.
Load Switch Gate. This pin is tied to the gate of the load switch
Input Voltage. This pin is tied to the output of the adaptor to monitor its output
voltage and supply internal bias. IC operating current, and MOSFET gate drive current
are supplied through this pin.
Gate Drive Output. Totem-pole output to drive the external SR MOSFET.
SR MOSFET Drain Voltage Detection. This pin is used to detect the voltage
on the secondary winding during the on time period of the primary MOSFET.
Ground.
Configuration Channel 1. This pin is used to detect connections of Type-C
cables and connectors. It is tied to the USB Type-C CC1.
www.onsemi.com
4
FAN6292BMX/FAN6292MX
MAXIMUM RATINGS (Note 1,2,3)
Rating
Symbol
Value
Unit
VIN
20
V
VBLD/AUX
20
V
VLGATE
20
V
CC1 Pin Input Voltage
VCC1
-0.3 to 6.0
V
CC2 Pin Input Voltage
VCC2
-0.3 to 6.0
V
LPC pin input voltage
VLPC
-0.3 to 6.5
V
GATE pin input voltage
VGATE
-0.3 to 6.0
V
VIN Pin Input Voltage
BLD/AUX Pin Input Voltage
LGATE Pin Input Voltage
Power Dissipation (TA=25C)
PD
850
mW
Operating Junction Temperature
TJ
-40 to 150
C
TSTG
-40 to 150
C
TL
260
C
ESDHBM
4
kV
Storage Temperature Range
Lead Temperature, (Soldering,10 Seconds)
Human Body Model, ANSI/ESDA/JEDEC JS-001-2012 (Note 4)
ESDCDM
kV
Charged Device Model, JESD22-C101 (Note 4)
1.75
1. Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device
functionality should not be assumed, damage may occur and reliability may be affected.
2. All voltage values, except differential voltages, are given with respect to the GND pin.
3. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.
4. Meets JEDEC standards JS-001-2012 and JESD 22-C101.
THERMAL CHARACTERISTICS (Note 5)
Rating
Thermal Characteristics,
Thermal Resistance, Junction-to-Air
Thermal Reference, Junction-to-Top
5. TA=25°C unless otherwise specified.
Symbol
Value
Unit
RθJA
RψJT
153
22
°C/W
RECOMMENDED OPERATING RANGES (Note 6)
Rating
Symbol
Min
Max
Unit
VIN
0
6
V
VBLD/AUX
0
6
V
VLGATE
0
10
V
CC1 Pin Input Voltage
VCC1
0
5.8
V
CC2 Pin Input Voltage
VCC2
0
5.8
V
LPC pin input voltage
VLPC
0
5
V
GATE pin input voltage
VGATE
0
5.5
V
VIN Pin Input Voltage
BLD/AUX Pin Input Voltage
LGATE Pin Input Voltage
6.
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses
beyond the Recommended Operating Ranges limits may affect device reliability.
www.onsemi.com
5
FAN6292BMX/FAN6292MX
ELECTRICAL CHARACTERISTICS
VIN=5 V, LPC=1.5 V, LPC width=2 µs at TJ= -40~125 C, FLPC=100 kHz, unless otherwise specified.
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
6
V
VIN Section
Continuous Operating Voltage(7)
VIN-OP
Operating Supply Current
VIN=5 V
IIN-OP-5V
Green Mode Operating Supply Current
VIN=5 V, with SR gate
F = 400Hz
CC1/CC2 open circuit
8
mA
IIN-OP-Green
0.5
0.9
1.3
mA
Internal Bias Section
Turn-On Threshold Voltage
VIN increases
VIN-ON
3.0
3.2
3.4
V
Turn-Off Threshold Voltage
VIN decreases
VIN-OFF
2.75
2.85
2.95
V
54
64
74
µs
Green Mode Section (FAN6292BMX)
Green Mode Enable Debounce Time
Number of switching to enter green
mode
Green Mode Disable Debounce Time
Non-switching time, when
LPC falling
tGreen-EN-
When switching period > TGreen-EN-
NGreen-EN-
Debounce
Debounce
1
Debounce
Enable after enter green mode,
Non-switching time, when LPC
falling
tGreen-DISDebounce
Cycle
54
64
74
µs
0.4
0.5
0.6
ms
0.2
0.3
0.4
ms
Green Mode Section (FAN6292MX)
Green Mode Enable Debounce Time
Non-switching time, when when
LPC falling
Green Mode Disable Debounce Time
Enable after enter green mode,
Non-switching time, when LPC
falling
Number of consecutive switching to
leave green mode
Independently enable with TGreen-DISDebounce, when LPC falling
tGreen-ENDebounce
tGreen-DISDebounce
NGreen-DIS-
256
Debounce
Cycles
Bleeder Section
BLD Pin Sink Current through when
bleeding (7)
VBLD=5 V
Maximum Discharging Time when
bleeding
IBLD -Sink
90
mA
tBLD-MAX
275
320
365
ms
VIN-AUX
4.7
4.8
4.9
V
5
μs
84
μs
15
mA
AUX Section ( FAN6292BMX )
Output undershoot detection threshold
voltage
Internal debounce time to enable IAUX(7)
RC filter type
TAUXDebounce
BLD/AUX pin pull-down time
BLD/AUX pin pull down current with
VAUX=5V
VBLD=5 V, RBLD=0 Ω
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6
TAUX-ON
44
IAUX
3.3
64
FAN6292BMX/FAN6292MX
ELECTRICAL CHARACTERISTICS
VIN=5 V, LPC=1.5 V, LPC width=2 µs at TJ= -40~125 C, FLPC=100 kHz, unless otherwise specified.
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
Type-C Section
Source current on CC1 pin
VIN=5 V, VCC2=0 V
IP-CC1
304
330
356
µA
Source current on CC2 pin
VIN=5 V, VCC1=0 V
IP-CC2
304
330
356
µA
Input impedance on CC1 pin
ZOPEN-CC1
126
kΩ
Input impedance on CC2 pin
ZOPEN-CC2
126
kΩ
Ra impedance detection threshold on
CC1 pin
VIN=5 V, VCC2=0 V, Decreasing VCC1
VRA-CC1
0.75
0.80
0.85
V
Ra impedance detection threshold on
CC2 pin
VIN=5 V, VCC1=0 V, Decreasing VCC2
VRA-CC2
0.75
0.80
0.85
V
Rd impedance detection threshold on
CC1 pin
VIN=5 V, VCC2=0 V, Increasing VCC1
VRD-CC1
2.45
2.60
2.75
V
Rd impedance detection threshold on
CC2 pin
VIN=5 V, VCC1=0 V, Increasing VCC2
VRD-CC2
2.45
2.60
2.75
V
UFP attachment debounce time
VIN=5 V, VCC2=0 V, Increasing VCC1
100
150
200
ms
UFP detachment debounce time
VIN=5 V, VCC2=0 V, Decreasing VCC1
10
15
20
ms
After tCC-attach-debounce until VBUS=5 V(7)
VIN=5 V, VCC2=0 V, Increasing VCC1
tVBUS-ON
275
ms
After detaching UFP until VBUS=0 V(7)
VIN=5 V, VCC2=0 V, Decreasing VCC1
tVBUS-OFF
650
ms
Gate high voltage
VIN=5 V
VNGATE
10
V
Output Voltage Low
VIN=5 V, IGATE=100 mA
VOL
0.25
V
Output Voltage High
VIN=5 V
VOH
Rising Time(7)
VIN=5 V, CL=3300 pF,
GATE=1 V ~ 4 V
tR
20
Falling Time(7)
VIN=5 V, CL=3300 pF,
GATE=4 V~ 1 V
tF
9
Propagation Delay to OUT High (LPC
trigger)
VIN=5 V, GATE=1 V
tPD-HIGH-LPC
44
Propagation Delay to OUT Low (LPC
trigger)(7)
VIN=5 V, GATE=4 V
tPD-LOW-LPC
30
ns
tINHIBIT
1.4
µs
60
ms
tCC-Attachdebounce
tCC-Detachdebounce
8
Output Driver Section
Gate inhibit Time(7)
Gate start-up disable time
For FAN602 (FAN6292MX)
tSR-startup-dis
Gate start-up disable time
For FAN105B (FAN6292BMX)
tSR-startup-dis
www.onsemi.com
7
0.16
4.5
1.5
V
2
35
ns
ns
80
2.5
ns
ms
FAN6292BMX/FAN6292MX
ELECTRICAL CHARACTERISTICS
VIN=5 V, LPC=1.5 V, LPC width=2 µs at TJ= -40~125 C, FLPC=100 kHz, unless otherwise specified.
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
KRES
0.196
0.200
0.204
V/V
KVIN-DROP
70
90
%
tSR_OFF
3.5
5.5
7.5
ms
tVIN-Debounce
1
2
3
µs
VLPC
0.4
VIN -1
V
Internal RES section
Internal RES ratio
VIN=5 V, Turn-ratio=15~17
VIN Dropping Protection Ratio with Two LPC width=5 µs
Cycle
VIN=5 V to 3.5 V
Debounce time for disable SR when VIN
dropping protection
Debounce time for noise immunity on
VIN(7)
LPC Section
Linear Operation Range of LPC Pin
Voltage(7)
VIN -OFF < VIN ≤ 5V
LPC Sink Current
VLPC=1V
ILPC-SINK
SR Enabled Threshold Voltage @High
Line
Threshold Voltage on LPC Rising Edge
@High Line(7)
VLPC-HIGH-H *0.875 = VLPC-TH-H
SR Enabled Threshold Voltage @ Low
Line
VLPC-HIGH-L-5V = VLPC-TH-L-5V / 0.875
Threshold Voltage on LPC Rising Edge
@ Low Line(7)
Spec.=0.4+0.05*VIN
VIN = 5V
Falling Edge Threshold Voltage to trigger
SR (7)
100
nA
VLPC-HIGH-H
1.418
1.500
1.583
V
VLPC-TH-H
1.205
1.313
1.424
V
VLPC-HIGH-L-5V 0.703
0.743
0.783
V
0.650
0.67
V
VLPC-TH-L-5V
0.63
VLPC-TH-TRIG
70
mV
Low to High Line Threshold Voltage on
VIN = 5V, Spec.=(0.8+0.03*VIN)*2
LPC pin
VLINE-H-5V
1.81
1.90
1.99
V
High to Low Line Threshold Voltage on
LPC pin
VIN = 5V,
Spec.=(0.75+0.03*VIN)*2
VLINE-L-5V
1.72
1.80
1.88
V
Line Change Threshold Hysteresis
VLINE-HYS-5V = VLINE-H-5V - VLINE-L-5V
Higher Clamp Voltage
VLINE-HYS-5V
0.1
VLPC-CLAMP-H
5.4
VLPC-DIS
VIN - 0.6
6.2
V
7.0
V
LPC Threshold Voltage to Disable SR
Gate Switching
VIN = 5V
LPC=3V↑
Enable VLPC-DIS
Increasing VIN
VEN-LPC-DIS
4.25
4.4
4.45
V
Disable VLPC-DIS
Decreasing VIN
VDIS-LPC-DIS
4.1
4.2
4.3
V
V
Line Change Debounce from Low Line to Counts for
High Line(7)
LPC falling < VLPC-TH-L-5V
tLPC-LH-debounce
7
cycles
Line Change Debounce from High Line
to Low Line(7)
tLPC-HL-debounce
15
µs
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8
FAN6292BMX/FAN6292MX
ELECTRICAL CHARACTERISTICS
VIN=5 V, LPC=1.5 V, LPC width=2 µs at TJ= -40~125 C, FLPC=100 kHz, unless otherwise specified
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
Internal Timing Section
LPC Transfer Ratio to ILPC(7)
RatioLPC
1
A/V
VRES Transfer Ratio to IRES(7)
RatioRES
0.445
A/V
Ratio between VLPC & VRES
VIN=5V, FLPC=50 kHz,
KRES=0.20
Minimum LPC Time to Enable the SR
Gate @ High Line
RatioLPC-RES
3.15
3.37
3.59
VLPC=3V
tLPC-EN-H
80
180
280
ns
Minimum LPC Time to Enable the SR
Gate @ Low Line
VLPC=1.5V
tLPC-EN-L
500
600
700
ns
Minimum Gate Width
FAN6292BMX
tMIN
1.9
2.2
2.5
µs
tON-MAX
20
tgate-limit
350
Max SR On
Time(7)
ton-SR(n+1)- ton-SR(n) < tgate-limit
Maximum Gate Limit On-time)(7)
Forced internal CT reset
time(7)
µs
500
650
ns
tgate-limit-max
5
µs
tCT-RESET
10
ns
Reverse Current Mode Section
Reverse current mode entry debounce
time
VIN=5 V, VLPC=0 V
Operating current during reverse
current mode
VIN=5 V, VLPC=0 V
Source current on CC1 pin during
reverse current mode(7)
Treverse-
650
ms
IOP.reverse
1.7
mA
VIN=5 V, VLPC=0 V
IP-CC1.reverse
10
μA
Source current on CC2 pin during
reverse current mode(7)
VIN=5 V, VLPC=0 V
IP-CC2.reverse
10
μA
AUX pin current during reverse current
mode(7)
VIN=5 V, VLPC=0 V
IBLD.reverse
10
uA
7.
8.
Guaranteed by Design.
Guaranteed at -5° ~ 85°C.
www.onsemi.com
9
debounce
350
500
FAN6292BMX/FAN6292MX
T
Y
P
I
C
A
L
C
H
A
R
Figure 4 Turn-On Threshold Voltage
( V
I N -
O N
)
v s .
T e m p e r a t u r e
A
C
T
E
R
I
S
T
I
C
S
Figure 5 Turn-Off Threshold Voltage
( V
I N - O F F
)
v s .
T e m p e r a t u r e
Figure 6 Minimum LPC Time to Enable the SR
Figure 7 VIN Under-Voltage-Protection
Gate @ Low -Line (tLPC-EN-L) vs. Temperature
Enable (V
I N - A U X
) vs. Temperature
Figure 9 Ratio between VLPC & VRES
Figure 8 Minimum LPC Time to Enable the SR
(Ratio
Gate @ High-Line (tLPC-EN-H) vs. Temperature
www.onsemi.com
10
L P C - R E S
)
vs.
Temperature
FAN6292BMX/FAN6292MX
T
Y
P
I
C
A
L
C
H
A
R
Figure 10 Source Current on CC1 Pin
( I
P -
C
C 1
)
v s .
T e m p e r a t u r e
Figure 12 Operating Current during Reverse Current
Mode(IOP.reverse) vs. Temperature
A
C
T
E
R
I
S
T
I
C
S
Figure 11 Source Current on CC2 Pin
( I
P - C C 2
F i g u r e
( V
www.onsemi.com
11
)
v s .
1 3
N G A T E
)
G a t e
v s .
T e m p e r a t u r e
H i g h
V o l t a g e
T e m p e r a t u r e
FAN6292BMX/FAN6292MX
APPLICATIONS INFORMATION
N-channel MOSFET for Load Switch
FAN6292BMX/FAN6292MX implement Type-C block
to enable or disable an external load switch. Internally
adapted charge pump lets it control N-channel MOSFET
as a load switch. It helps system be more cost
competitive compared to P-channel MOSFET as a load
switch. Since the minimum pumped voltage is VBUS+3 V,
it is recommended to use N-channel MOSFET
supporting lower gate threshold levels.
Detail of Load Switch Control
FAN6292BMX/FAN6292MX support output current
higher than 1.5 A. In order to meet Type-C specification,
330 μA is applied on CC1 pin and CC2 pin. When Rd
(5.1 kΩ) is attached on either CC1 or CC2, load switch is
turned-on after 150 ms debounce time. As soon as load
switch is enabled, BC1.2 counter is enabled. To
acknowledge detachment, it needs 15 ms (typ.) debounce
time. When load switch is turned-off, bleeder is also
enabled at the same time.
I BLD RType
VO _ MAX
VIN-UVP Protection(for FAN6292BMX)
Since pure primary side controller detects and regulates
output voltage only when switching, it is not easy
maintaining output voltage when load suddenly increases
from light load where switching frequency is slow to
heavy load.Therefore, as Figure 15, FAN6292BMX
automatically detects output voltage. When output
undershoot is acknowledged via VIN pin, BLD/AUX pin
pull-down current via S2 switch to inform undershoot
status to primary controller via a photo-coupler. Since
the pull-down current is limited through S2, the current
will not affect to the amount of output current.
Load Switch
VBUS
NP
NS
Co1
Co2
LGATE
RLPC1
SR
Gate
LPC
RLPC2
Green Mode Operation (for FAN6292BMX)
In order to reduce power consumption at light-load
conditions with FAN105B system, FAN6292BMX in
green mode will disable LPC internal detection block but
SR contiously works at mini on time for FAN105B
which is a pure primary side controller to normally
regulate output voltage. When VLPC is smaller than VLPCHIGH-L-5V and maintains duration longer than tGreen-ENDebounce, FAN6292MX enters green mode where current
can be reduced to 0.9 mA (typ.). It leaves green mode
when VLPC is larger than VLPC-HIGH-L-5V and maintains
duration shorter than tGreen-DIS-Debounce.
(1)
RBLD RInternal
Optocoupler
RBLD
(100Ω)
AUX
FAN105B
CFUNC
FAN6292
BLD / AUX
VIN
CC1
CC2
S1
TypeC
deteachment
detection
S2
VIN-AUX
Figure 14 BLD/AUX Function Diagram
Green Mode Operation(for FAN6292MX)
In order to reduce power consumption at light-load
conditions with FAN602 system, FAN6292MX enters
the green mode where some internal blocks are disabled
such as Synchronous Rectifier control block. Therefore,
the operating current can be largely reduced. It enters
Green Mode when VLPC is smaller than VLPC-HIGH-L-5V
and maintains duration longer than tGreen-EN-Debounce. It
leaves green mode when VLPC is larger than VLPC-HIGH-L5V and maintains duration shorter than tGreen-DIS-Debounce.
Load
Heavy load
t
Pri-PWM
t
VIN
VIN-AUX
Bleeder Function
When the portable device is detached, BUS voltage
should be discharged to zero within a short time to meet
TypeC specification. FAN6292BMX/ FAN6292MX
support bleeding function by turning on S1 for TBLD-max
as shown in Figure 14. The amount of bleeding current
through BLD/AUX pin can be controlled by the external
resistor RBLD shown in (1).
www.onsemi.com
12
S2
tAUX-Debounce
t
tAUX-ON
t
Figure 15 VIN-UVP Protection
FAN6292BMX/FAN6292MX
ORDERING INFORMATION
Part Number
Operating
Temperature Range
Package
Packing Method
FAN6292BMX
-40C to +125C
8-Lead, Small Outline Package (SOIC), JEDEC
MS-012, .150-Inch Narrow Body
Tape & Reel
FAN6292MX
-40C to +125C
8-Lead, Small Outline Package (SOIC), JEDEC
MS-012, .150-Inch Narrow Body
Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D
www.onsemi.com
13
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