Fairchild FAN6862L Highly integrated green-mode pwm controller Datasheet

FAN6862R / FAN6862L
Highly Integrated Green-Mode PWM Controller
Features
Description
ƒ
ƒ
ƒ
Low Startup Current: 8µA
ƒ
PWM Frequency Continuously Decreasing with
Burst Mode at Light Loads
ƒ
ƒ
ƒ
ƒ
VDD Over-Voltage Protection (OVP)
A highly integrated PWM controller, FAN6862R/L
provides several features to enhance the performance
of flyback converters. To minimize standby power
consumption, a proprietary green-mode function
provides off-time modulation to continuously decrease
the switching frequency under light-load conditions.
Under zero-load conditions, the power supply enters
burst mode, which completely shuts off PWM output.
Output restarts just before the supply voltage drops
below the UVLO lower limit. This green-mode function
enables power supplies to meet international power
conservation requirements.
ƒ
ƒ
ƒ
Feedback Open-Loop Protection with 56ms Delay
Low Operating Current in Green Mode: 3mA
Peak-Current-Mode Operation with Cycle-by-Cycle
Current Limiting
Constant Output Power Limit (Full AC Input Range)
Over-Temperature Protection (OTP)
Fixed PWM Frequency (65KHz) with Frequency
Hopping
Soft Start Time: 5ms
400mA Driving Capability
Applications
General-purpose switch-mode power supplies and
flyback power converters, including:
ƒ
ƒ
ƒ
Power Adapters
Open-Frame SMPS
SMPS with Surge-Current Output, such as for
Printers, Scanners, and Motor Drivers
The FAN6862R/L is designed for SMPS and integrates
a frequency-hopping function that helps reduce EMI
emission of a power supply with minimum line filters.
The built-in synchronized slope compensation is
proprietary sawtooth compensation for constant output
power limit over universal AC input range. The gate
output is clamped at 18V to protect the external
MOSFET from over-voltage damage.
Other protection functions include VDD over-voltage
protection, over-temperature protection, and overload
protection. For over-temperature protection, an external
NTC thermistor can be applied to sense the ambient
temperature. When OVP, OTP, or OLP is activated, an
internal protection circuit switches off the controller.
Part Number
OVP
OTP
OLP
FAN6862RTY Auto Restart Auto Restart Auto Restart
FAN6862LTY
Latch
Latch
Latch
Ordering Information
Part Number
Operating Temperature Range
Eco Status
Package
Packing Method
FAN6862RTY
-40 to +105°C
Green
6-Pin SSOT-6
Tape & Reel
FAN6862LTY
-40 to +105°C
Green
6-Pin SSOT-6
Tape & Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
www.fairchildsemi.com
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
January 2010
Figure 1. Typical Application
Block Diagram
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Typical Application
Figure 2. Block Diagram
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
www.fairchildsemi.com
2
••••
ABxTT
---
ABx:
TT:
yyyy:
_ _ _:
ABA: FAN6862LTY
ABC: FAN6862RTY
Wafer Lot Code
Year Code
Week Code
Figure 3. Top Mark
Pin Configuration
Figure 4. Pin Assignments
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Marking Information
Pin Definitions
Pin # Name
1
GND
Function
Ground
Feedback
Description
Ground
The FB pin provides the output voltage regulation signal. It provides feedback to
the internal PWM comparator for control of the duty cycle. This pin also provide for
OLP: if VFB is larger than the trigger level and remains for a long time, the controller
stops and restarts.
2
FB
3
RT
4
SENSE
5
VDD
Power Supply Power supply
6
GATE
Driver Output The totem-pole output driver for driving the power MOSFET.
An external NTC thermistor is connected from this pin to GND for over-temperature
Temperature
protection. The impedance of the NTC decreases at high temperatures. Once the
Detection
voltage of the RT pin drops below a threshold, PWM output is disabled.
Current
Sense
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
This pin senses the voltage across a resistor. When the voltage reaches the
internal threshold, PWM output is disabled. This activates over-current protection.
This pin also provides current amplitude information for current-mode control.
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3
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only. All voltage values, except differential voltages, are
given with respect to GND pin.
Symbol
Parameter
VDD
Supply Voltage
VL
Input Voltage to FB, SENSE, RT Pin
PD
Power Dissipation at TA<50°C
ΘJC
TJ
TSTG
TL
ESD
Min.
Max.
Unit
30
V
-0.3
7.0
V
300
mW
115
°C/W
Operating Junction Temperature
Thermal Resistance (Junction-to-Case)
-40
+150
°C
Storage Temperature Range
-55
+150
°C
Lead Temperature, Wave Soldering, 10 Seconds
+260
°C
Human Body Model, JESD22-A114
3.00
Charge Device Model, JESD22-C101
1.25
kV
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
TA
Parameter
Operating Ambient Temperature
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
Min.
Max.
Unit
-40
+105
°C
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Absolute Maximum Ratings
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4
VDD = 15V and TA = 25°C unless otherwise noted.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VDD Section
VDD-OP
Continuously Operating Voltage
24
V
VDD-ON
Turn-On Threshold Voltage
15
16
17
V
VDD-OFF
Turn-Off Voltage
7.5
8.5
9.5
V
VDD-OVP
VDD Over-Voltage Protection (Latch-Off)
24
25
26
V
VDD-LH
Threshold Voltage for Latch-Off Release
3
4
5
V
IDD-ST
Startup Current
VDD-ON–0.16V
8
30
μA
IDD-OP
Normal Operating Supply Current
CL=1nF
3
4
mA
IDD-BM
Green-Mode Operating Supply Current
GATE Open,
VFB=VFB-G
2.5
mA
VDD-OVP
VDD Over-Voltage Protection
tD-VDDOVP
VDD OVP Debounce Time
IDD-LH
Latch-Off Holding Current
24
VDD=5V
25
26
V
30
50
μs
40
65
μA
1/3.5
1/3.0
V/V
Feedback Input Section
AV
Input-Voltage to Current-Sense Attenuation
ZFB
Input Impedance
1/4.0
5.5
kΩ
VFB-OPEN
FB Pin Open Voltage
5.0
5.2
5.4
V
VFB-OLP
Threshold Voltage for Open-Loop Protection
4.3
4.6
4.9
V
Open-Loop Protection Delay Time
53
56
60
ms
100
250
ns
tD-OLP
Current Sense Section
tPD
tLEB
Delay to Output
360
ns
VSTHFL
Flat Threshold Voltage for Current Limit
Duty>51%
0.5
V
VSTHVA
Valley Threshold Voltage for Current Limit
Duty=0%
0.44
V
VSLOPE
Slope Compensation
Duty=DCYMAX
0.273
V
5
ms
tSOFT-START
Leading-Edge Blanking Time
270
Period During Startup Time
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Electrical Characteristics
Oscillator Section
Center Frequency
fOSC
VFB>VFB-N
62
65
Normal PWM Frequency Hopping Range
VFB≥VFB-N
±4.2
Hopping Range
VFB=VFB-G
±2.9
68
kHz
thop-1
Hopping Period 1
VFB≥VFB-N
4.4
ms
thop-3
Hopping Period 3
VFB=VFB-G
11.5
ms
fOSC-G
Green Mode Minimum Frequency
22.5
kHz
VFB-N
FB Threshold Voltage For Frequency
Reduction
2.5
V
VFB-G
FB Voltage at fOSC-G
2.1
V
VFB-ZDC
FB Threshold Voltage for Zero Duty
1.7
fDV
Frequency Variation vs. VDD Deviation
VDD=11.5V to 20V
fDT
Frequency Variation vs. Temperature
Deviation
TA= -40 to +105°C
0
0.02
V
2.00
%
2
%
Continued on the following page…
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
www.fairchildsemi.com
5
VDD = 15V and TA = 25°C unless otherwise noted.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
PWM Output Section
DCYMAX
Maximum Duty Cycle
70
VOL
Output Voltage Low
VDD=15V, IO=50mA
VOH
Output Voltage High
VDD=8V, IO=50mA
tR
Rising Time
CL=1nF
150
tF
Falling Time
CL=1nF
35
Gate Output Clamping Voltage
VDD=20V
VCLAMP
%
1.5
6
15.0
V
V
16.5
200
ns
ns
18.0
V
Over-Temperature Protection (OTP) Section
IRT
Output Current of RT Pin
VOTP
Threshold Voltage for Over-Temperature
Protection
tDOTP
Over-Temperature Debounce Time
VOTP2
2 Threshold Voltage for OverTemperature Protection
tDOTP2
2
100
TA=25°C
0.97
1.02
VFB=VFB-N
17
VFB=VFB-G
51
μA
1.07
V
ms
nd
nd
TA=25°C
Over-Temperature Debounce Time
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
0.60
0.70
100
0.75
V
μs
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Electrical Characteristics (Continued)
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6
9.5
16.6
9.1
VDD-OFF (V)
VDD-ON (V)
17
16.2
15.8
8.7
8.3
7.9
15.4
7.5
15
-40
-30
-15
0
25
50
75
85
100
125
-40
-30
-15
0
Turn-On Threshold Voltage (VDD-ON)
vs. Temperature
Figure 6.
4.5
26
4.1
25.6
VDD-OVP (V)
IDD-OP (mA)
Figure 5.
3.7
3.3
2.9
50
75
85
100
125
Turn-Off Threshold Voltage (VDD-OFF)
vs. Temperature
25.2
24.8
24.4
2.5
24
-40
-30
-15
0
25
50
75
85
100
125
-40
-30
-15
0
Temperature (ºC)
Figure 7.
25
50
75
85
100
125
Temperature (ºC)
Operating Current (IDD-OP) vs. Temperature
Figure 8.
68
VDD Over-Voltage Protection (VDD-OVP)
vs. Temperature
2.7
67
2.6
66
VFB-N (V)
fOSC (KHz)
25
Temperature (ºC)
Temperature (ºC)
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Typical Performance Characteristics
65
2.5
2.4
64
2.3
63
2.2
62
-40
-30
-15
0
25
50
75
85
100
-40
125
Figure 9.
Center Frequency (fOSC) vs. Temperature
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
-30
-15
0
25
50
75
85
100
125
Temperature (ºC)
Temperature (ºC)
Figure 10. FB Threshold Voltage for Frequency
Reduction (VFB-N) vs. Temperature
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7
2.3
4.9
4.8
VFB-OLP (V)
VFB-G (V)
2.2
2.1
2
1.9
4.7
4.6
4.5
4.4
1.8
4.3
-40
-30
-15
0
25
50
75
85
100
125
-40
-30
-15
0
Temperature (ºC)
Figure 11. FB Voltage at fOSC-G (VFB-G) vs. Temperature
75
85
100
125
0.6
58
0.56
57
VSTHFL (V)
tD-OLP (mS)
50
Figure 12. Threshold Voltage for Open-Loop
Protection (VFB-OLP) vs. Temperature
59
56
55
0.52
0.48
0.44
54
53
0.4
-40
-30
-15
0
25
50
75
85
100
125
-40
-30
-15
0
Temperature (ºC)
25
50
75
85
100
125
Temperature (ºC)
Figure 13. Open-Loop Protection Delay Time (tD-OLP)
vs. Temperature
Figure 14. Flat Threshold Voltage for Current Limit
(VSTHFL) vs. Temperature
0.55
7
0.51
6
tSOFT-START (mS)
VSTHVA (V)
25
Temperature (ºC)
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Typical Performance Characteristics (Continued)
0.47
0.43
5
4
3
0.39
2
0.35
-40
-30
-15
0
25
50
75
85
100
-40
125
Figure 15. Valley Threshold Voltage for Current Limit
(VSTHVA) vs. Temperature
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
-30
-15
0
25
50
75
85
100
125
Temperature (ºC)
Temperature (ºC)
Figure 16. Period during Startup (tSOFT-START)
vs. Temperature
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8
180
71
160
70
140
tR (nS)
DCYMAX (%)
72
69
68
120
100
67
80
-40
-30
-15
0
25
50
75
85
100
125
-40
-30
-15
Temperature (ºC)
25
50
75
85
100
125
Temperature (ºC)
Figure 17. Maximum Duty Cycle (DCYMAX)
vs. Temperature
Figure 18. Rising Time (tR) vs. Temperature
70
120
60
112
50
104
IRT (μA)
tF (nS)
0
40
30
96
88
20
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Typical Performance Characteristics (Continued)
80
-40
-30
-15
0
25
50
75
85
100
125
-40
Temperature (ºC)
-15
0
25
50
75
85
100
125
Temperature (ºC)
Figure 19. Falling Time (tF) vs. Temperature
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
-30
Figure 20. Output Current of RT Pin (IRT)
vs. Temperature
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9
Frequency
Startup Operation
Figure 21 shows a typical startup circuit and
transformer auxiliary winding for a typical application.
Before FAN6862R/L begins switching operation, it
consumes only startup current (typically 8μA) and the
current supplied through the startup resistor charges
the VDD capacitor (CDD). When VDD reaches the turn-on
voltage of 16V (VDD-ON), FAN6862R/L begins switching
and the current consumed increases to 3mA. Then the
power required is supplied from the transformer
auxiliary winding. The large hysteresis of VDD (8.5V)
provides more holdup time, which allows using a small
capacitor for VDD. The startup resistor is typically
connected to AC line for a fast reset of latch protection.
PWM
Frequency
+4.2kHz
65kHz
-4.2kHz
+2.9kHz
22.5kHz
-2.9kHz
VFB-ZDC VFB -G
VFB -N
VFB
Figure 22. PWM Frequency
Vo
VFB
VFB.ZDC
(1.7V)
Ids
Switching
Disabled
Figure 21. Startup Circuit
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Operation Description
Switching
Disabled
Figure 23. Burst-Mode Operation
Frequency Hopping
Green-Mode Operation
EMI reduction is accomplished by frequency hopping,
which spreads the energy over a wider frequency range
than the bandwidth measured by the EMI test
equipment. An internal frequency hopping circuit
changes the switching frequency between 60.8kHz and
69.2kHz with a period of 4.4ms, as shown in Figure 24.
The FAN6862R/L uses feedback voltage (VFB) as an
indicator of the output load and modulates the PWM
frequency, as shown in Figure 22, such that the
switching frequency decreases as load decreases. In
heavy-load conditions, the switching frequency is
65KHz. Once VFB decreases below VFB-N (2.5V), the
PWM frequency starts to linearly decrease from 65KHz
to 22.5kHz to reduce the switching losses. As VFB
decreases below VFB-G (2.1V), the switching frequency
is fixed at 22.5kHz and FAN6862R/L enters “deep”
green mode, where the operating current decreases to
2.5mA (maximum), further reducing the standby power
consumption. As VFB decreases below VFB-ZDC (1.7V),
FAN6862R/L enters burst-mode operation. When VFB
drops below VFB-ZDC, switching stops and the output
voltage starts to drop, which causes the feedback
voltage to rise. Once VFB rises above VFB-ZDC, switching
resumes. Burst mode alternately enables and disables
switching, thereby reducing switching loss in standby
mode, as shown in Figure 23.
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
Figure 24. Frequency Hopping
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10
Open-Loop / Overload Protection (OLP)
When the upper branch of the voltage divider for the
shunt regulator (KA431 shown) is broken, as shown in
Figure 26, no current flows through the opto-coupler
transistor, which pulls up the feedback voltage to 5.2V.
Self-protective functions include VDD Over-Voltage
Protection (OVP), Open-Loop / Overload Protection
(OLP), Over-Current Protection (OCP), Short-Circuit
Protection, and Over-Temperature Protection (OTP).
FAN6862R uses auto-restart mode protections and
FAN6862L uses latch-mode protections.
When the feedback voltage is above 4.6V longer than
56ms, OLP is triggered. This protection is also triggered
when the SMPS output drops below the nominal value
longer than 56ms due to the overload condition.
Auto-Restart Mode Protection: Once a fault condition
is detected, switching is terminated and the MOSFET
remains off. This causes VDD to fall because no more
power is delivered from auxiliary winding. When VDD
falls to VDD-OFF (8.5V), the protection is reset and the
operating current reduces to startup current, which
causes VDD to rise. FAN6862R resumes normal
operation when VDD reaches VDD-ON (16V). In this
manner, the auto-restart can alternately enable and
disable the switching of the MOSFET until the fault
condition is eliminated (see Figure 25).
Latch-Mode Protection: Once this protection is
triggered, switching is terminated and the MOSFET
remains off. The latch is reset only when VDD is
discharged below 4V by unplugging AC power line.
VDS
Protection Triggers
Power
On
Fault Removed
VFB
5.2V
VFB-OLP (4.6V)
VDD
OLP Shutdown Delay Time
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Protections
OLP Triggers
Figure 26. OLP Operation
16V
VDD Over-Voltage Protection (OVP)
VDD over-voltage protection prevents IC damage caused
by over voltage on the VDD pin. The OVP is triggered
when VDD reaches 25V. A debounce time (typically
30µs) prevents false triggering by switching noise.
8.5V
Operating Current
3mA
Over-Temperature Protection (OTP)
The OTP circuit is composed of current source and
voltage comparators. Typically, an NTC thermistor is
connected between the RT and GND pins. Once the
voltage of this pin drops below a threshold of 1.02V,
PWM output is disabled after tDOTP debounce time. If
this pin drops below 0.7V, it triggers the latch-off
protection immediately after tDOTP2 debounce time.
8uA
Normal
Operation
Fault
Situation
Normal
Operation
Figure 25. Auto-Restart Operation
Over-Current Protection (OCP)
FAN6862R/L has over-current protection thresholds. It
is for pulse-by-pulse current limit, which turns off the
MOSFET for the remainder of the switching cycle when
the sensing voltage of MOSFET drain current reaches
the threshold. The other threshold is for the over-current
protection, which shuts down the MOSFET gate when
the sensing voltage of MOSFET drain current is above
the threshold longer than the shutdown delay (56ms).
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
www.fairchildsemi.com
11
Leading-Edge Blanking (tLEB)
FAN6862R/L has saw-limiter for pulse-by-pulse current
limit, which guarantees almost constant power limit over
different line voltages of universal input range.
Each time the power MOSFET is switched on, a turn-on
spike occurs across the sense-resistor caused by
primary-side capacitance and secondary-side rectifier
reverse recovery. To avoid premature termination of the
switching pulse, a leading-edge blanking time is built in.
During this blanking period (360ns), the PWM
comparator is disabled and cannot switch off the gate
driver. Thus, RC filter with a small RC time constant is
enough for current sensing.
The conventional pulse-by-pulse current limiting
scheme has a constant threshold for current limit
comparator, which results in a higher power limit for
high line voltage. FAN6862R/L has a sawtooth current
limit threshold that increases progressively within a
switching cycle, which provides lower current limit for
high line and makes the actual power limit level almost
constant over different line voltages of universal input
range, as shown in Figure 27.
Figure 28. Current Sense R-C Filter
Soft-Start
Figure 27. Sawtooth Current Limiter
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Constant Output Power Limit
The FAN6862R/L has an internal soft-start circuit that
increases pulse-by-pulse current-limit comparator
inverting input voltage slowly after it starts. The typical
soft-start time is 5ms. The pulsewidth to the power
MOSFET is progressively increased to establish the
correct working conditions for transformers, rectifier
diodes, and capacitors. The voltage on the output
capacitors is progressively increased with the intention
of smoothly establishing the required output voltage. It
also helps prevent transformer saturation and reduces
the stress on the secondary diode during startup.
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12
Application
Fairchild Devices
Input Voltage Range
Output
Netbook Adapter
FAN6862R/L
90~265VAC
19V/2.1A (40W)
Features
High efficiency (>85.3% at full load) meeting EPS regulation with enough margin
Low standby (Pin<0.15W at no-load condition)
Soft-start time: 5ms
Efficiency (%)
91
90
89
88
5
115VAC 60Hz (89.15% avg)
4.5
3.5
87
86
85
84
3
2.5
85.29% (Energy star V2.0)
2
83
1.5
82
25%
Over Current Protection
4
230VAC 50Hz (89.47% avg)
Io(A)
ƒ
ƒ
ƒ
1
50%
Load (%)
75%
100%
90V
115V
Vac(V)
230V
264V
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Typical Application Circuit (Netbook Adapter by Flyback)
Figure 29. Measured Efficiency and Over-Current Protection
Figure 30. Schematic of Typical Application Circuit
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
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13
Transformer Specification
ƒ
ƒ
Core: RM 8
Bobbin: RM 8
Figure 31. Transformer Diagram
NO
N1
N2
Terminal
S
F
11
10
3
2
Fly2
0.25*1
INSULATION
BARRIER
Ts
Primary
Secondary
9
3
-
-
0.25* 1
33
1
-
-
1.2
3
-
-
0.5* 2
12
1
-
-
COPPER SHIELD
1.2
3
-
-
0.25 * 1
33
4
-
-
CORE ROUNDING TAPE
-
3
Fly+
11
N4
Ts
COPPER SHIELD
11
N3
WIRE
1
Pin
Specification
Remark
Primary-Side Inductance
3-1
920µH ± 5%
100kHz, 1V
Primary-Side Effective Leakage
3-1
15µH maximum
Short one of the secondary windings
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Typical Application Circuit (Continued)
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14
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
Physical Dimensions
Figure 32. 6-Pin, SUPERSOT6 “SSOT-6”, JEDEC MO-193, 1.6mm Wide Package
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify
or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically
the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
www.fairchildsemi.com
15
FAN6862R/L — Highly Integrated Green-Mode PWM Controller
© 2009 Fairchild Semiconductor Corporation
FAN6862R/L • Rev. 1.0.0
www.fairchildsemi.com
16
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