FAN301MY Datasheet PDF - Fairchild Semiconductor
Part Number | FAN301MY | |
Description | PWM Controller | |
Manufacturers | Fairchild Semiconductor | |
Logo | ||
There is a preview and FAN301MY download ( pdf file ) link at the bottom of this page. Total 16 Pages |
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FAN301
PWM Controller for Low Standby Power Charger
Applications
Features
Ultra-Low Standby Power Under 20mW at 264VAC
Constant-Current (CC) Control without Secondary-
Feedback Circuitry
Green Mode: PWM Frequency Linearly Decreasing
Fixed PWM Frequency at 45kHz with Frequency
Hopping to Solve EMI Problems
High-Voltage Startup
Low Operating Current: 3mA
Peak-Current-Mode Control in CV Mode
Cycle-by-Cycle Current Limiting
VDD Over-Voltage Protection (Auto-Restart)
VDD Under-Voltage Lockout (UVLO)
Gate Output Maximum Voltage Clamped at 15V
Fixed Over-Temperature Protection (Auto-Restart)
Applications
Battery chargers for cellular phones, cordless
phones, PDA, digital cameras, power tools
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
|
|
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
kΩ
kΩ
V
V
V
V
V
Continued on the following page…
© 2008 Fairchild Semiconductor Corporation
FAN301 • Rev. 1.0.0
5
www.fairchildsemi.com
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FAN301MY electronic component. |
Information | Total 16 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ FAN301MY.PDF Datasheet ] |
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