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What is FAN301MY?

This electronic component, produced by the manufacturer "Fairchild Semiconductor", performs the same function as "PWM Controller".


FAN301MY Datasheet PDF - Fairchild Semiconductor

Part Number FAN301MY
Description PWM Controller
Manufacturers Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 


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July 2010
FAN301
PWM Controller for Low Standby Power Charger
Applications
Features
ƒ Ultra-Low Standby Power Under 20mW at 264VAC
ƒ Constant-Current (CC) Control without Secondary-
Feedback Circuitry
ƒ Green Mode: PWM Frequency Linearly Decreasing
ƒ Fixed PWM Frequency at 45kHz with Frequency
Hopping to Solve EMI Problems
ƒ High-Voltage Startup
ƒ Low Operating Current: 3mA
ƒ Peak-Current-Mode Control in CV Mode
ƒ Cycle-by-Cycle Current Limiting
ƒ VDD Over-Voltage Protection (Auto-Restart)
ƒ VDD Under-Voltage Lockout (UVLO)
ƒ Gate Output Maximum Voltage Clamped at 15V
ƒ Fixed Over-Temperature Protection (Auto-Restart)
Applications
ƒ Battery chargers for cellular phones, cordless
phones, PDA, digital cameras, power tools
ƒ Replaces linear transformer and RCC SMPS
Description
This highly integrated PWM controller, FAN301,
provides features to enhance the performance of low-
power flyback converters. The proprietary topology
enables simplified circuit design for battery charger
applications. A low-cost, smaller, and lighter charger is
the result, compared to a conventional design or a
linear transformer.
To minimize standby power consumption, a proprietary
green-mode function provides off-time modulation to
linearly decrease PWM frequency under light-load
conditions. This green mode assists the power supply in
meeting power conservation requirements.
By using FAN301, a charger can be implemented with
fewer external components and minimized cost. A
typical output CV/CC characteristic envelope is shown
in Figure 1.
Vo Maximum
Typical
Minimum
Io
Figure 1. Typical Output V-I Characteristic
(without Cable)
Ordering Information
Part Number
FAN301MY
Operating
Temperature Range
-40°C to +105°C
Package
8-Lead, Small Outline Package
Packing Method
Tape & Reel
© 2008 Fairchild Semiconductor Corporation
FAN301 • Rev. 1.0.0
www.fairchildsemi.com

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FAN301MY equivalent
Electrical Characteristics
VDD=15V, TA=25°C, unless noted.
Symbol
Parameter
Conditions
HV Section
VHV-MIN Minimum Startup Voltage on HV Pin
IHV Supply Current Drawn from HV Pin
IHV-LC Leakage Current Drawn from HV Pin
VAC=90V; VDD=0V, Controller
Off
With Auxiliary Supply;
VHV=500V, VDD=15V,
Controller on
VDD Section
VOP
VDD-ON
Continuously Operation Voltage
Turn-On Threshold Voltage
VDD-OFF Turn-Off Threshold Voltage
IDD-ST Startup Current
IDD-OP Operating Supply Current
IDD-BURST Burst-Mode Operating Supply Current
VDD-OVP VDD Over-Voltage Protection Level
tD-VDDOVP
VDD Over-Voltage Protection
Debounce Time
VDD=VDD-ON – 0.16V
VDD=20V, f=fOSC, CL=1nF
VDD=20V, CL=1nF
Auto-Restart
f=45kHz
Oscillator Section
Center Frequency
fOSC
Frequency
Hopping Range
tFHR
fOSC-G
fOSC-CM-MIN
Frequency Hopping Period
Green-Mode Frequency
Minimum Frequency if CCM
(Continuous Current Mode)
fOSC-CCM
Minimum Frequency in CC Mode
(Constant Current Mode)
Feedback input Section
AV
FB Input to Current Comparator
Attenuation
ZFB Input Impedance
ZFB-BURST Input Impedance at Burst Mode
VFB-OPEN Output High Voltage
VFB-N Green-Mode Entry Voltage
VFB-G Green-Mode Ending Voltage
VFBL Enter Zero Duty Cycle of FB Voltage
VFBH Exit Zero Duty Cycle of FB Voltage
FB Pin Open
Min.
27
41
5.0
Typ.
1.5
0.8
16
5
450
3
200
28
100
45
±1.55
2.84
20
21.5
24.5
1/3
42
49.5
5.3
3
2.4
1.4
1.5
Max. Units
50 V
2.0 mA
3.0 μA
25 V
V
V
μA
mA
μA
29 V
μs
49
kHz
ms
kHz
kHz
kHz
V/V
k
k
V
V
V
V
V
Continued on the following page…
© 2008 Fairchild Semiconductor Corporation
FAN301 • Rev. 1.0.0
5
www.fairchildsemi.com


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FAN301MY electronic component.


Information Total 16 Pages
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Featured Datasheets

Part NumberDescriptionMFRS
FAN301MYThe function is PWM Controller. Fairchild SemiconductorFairchild Semiconductor

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