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FAN100 の電気的特性と機能

FAN100のメーカーはFairchild Semiconductorです、この部品の機能は「Primary-Side-Control PWM Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 FAN100
部品説明 Primary-Side-Control PWM Controller
メーカ Fairchild Semiconductor
ロゴ Fairchild Semiconductor ロゴ 




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FAN100 Datasheet, FAN100 PDF,ピン配置, 機能
August 2008
FAN100
Primary-Side-Control PWM Controller
Features
ƒ Constant-Voltage (CV) and Constant-current (CC)
Control without Secondary-feedback Circuitry
ƒ Green Mode PWM Frequency Linearly Decreasing
ƒ Fixed PWM Frequency at 42kHz with Frequency
Hopping to Solve EMI Problem
ƒ Low Startup Current: 10μA
ƒ Low Operating Current: 3.5mA
ƒ Peak-Current-Mode Control in CV Mode
ƒ Cycle-by-Cycle Current Limiting
ƒ VDD Over-Voltage Protection with Auto-Restart
ƒ VDD Under-Voltage Lockout (UVLO)
ƒ Gate Output Maximum Voltage Clamped at 18V
ƒ Fixed Over-temperature Protection with Latch
ƒ SOP-8 Package Available
Applications
www.DataShƒeet4BUa.ctotemry chargers for cellular phones, cordless
phones, PDA, digital cameras, power tools
ƒ Replaces linear transformer and RCC SMPS
Related Resources
ƒ AN-6067 Design Guide for
FAN100/102/FSEZ1016A/1216
Description
This highly integrated PWM controller, FAN100,
provides several 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 results when compared to a conventional
design or a linear transformer. The startup current is
only 10µA, which allows use of large startup resistance
for further power saving.
To minimize the standby power consumption, the
proprietary green-mode function provides off-time
modulation to linearly decrease PWM frequency under
light-load conditions. This green-mode function assists
the power supply meeting the power conservation
requirements.
Using FAN100, a charger can be implemented with
fewest external components and minimized cost. A
typical output CV/CC characteristic envelope is shown
in Figure 1.
FAN100 controller is available in an 8-pin SOP package.
Figure 1. Typical Output V-I Characteristic
Ordering Information
Part Number
Operating
Temperature Range
FAN100MY
-40°C to +105°C
Eco Status
Green
Package
8-Lead, Small Outline
Package (SOP-8)
Packing Method
Tape & Reel
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FAN100 Rev. 1.0.0
www.fairchildsemi.com

1 Page





FAN100 pdf, ピン配列
Marking Information
DZXXYYTTTT
FAN100
TPM
F- Fairchild logo
Z- Plant Code
X- 1 digit year code
Y- 1 digit week code
TT: 2 digits die run code
T: Package type (M=SOP)
P: Z: Pb free, Y: Green package
M: Manufacture flow code
Pin Configuration
Figure 4. Top Mark
CS
GND
COMI
COMV
GATE
VDD
GND
VS
Figure 5. Pin Configuration
Pin Definitions
Pin # Name
www.DataShee1t4U.com CS
2 GND
3 COMI
4 COMV
5 VS
6 GND
7 VDD
8 GATE
Description
Analog input, current sense. Connected to a current-sense resistor for peak-current-mode
control in CV mode. The current-sense signal is also provided for output-current regulation in
CC mode.
Voltage reference, ground.
Analog output, current compensation. Output of the current error amplifier. Connect a capacitor
between COMI pin and GND for frequency compensation.
Analog output, voltage compensation. Output of the voltage error amplifier. Connect a capacitor
between COMV pin and GND for frequency compensation.
Analog input, voltage sense. Output-voltage-sense input for output-voltage regulation.
Voltage reference, ground.
Supply, power supply.
Driver output. The totem-pole output driver to drive the power MOSFET.
© 2008 Fairchild Semiconductor Corporation
FAN100 Rev. 1.0.0
3
www.fairchildsemi.com


3Pages


FAN100 電子部品, 半導体
Electrical Characteristics (Continued)
VDD=15V and TA=25°C, unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
Current-Sense Section
tPD
Propagation Delay to GATE
Output
tMIN-N
Minimum On Time at No Load
tMINCC
DSAW
VTH
Minimum On Time in CC Mode
Duty Cycle of SAW Limiter
Threshold Voltage for Current
Limit
VVS=-0.8V, RS=2K,
VCOMV=1V
VVS=0V, VCOMV=2V
100
1100
400
40
1.3
200
ns
ns
ns
%
V
Voltage-Error-Amplifier Section
VVR Reference Voltage
VN
Green Mode Starting Voltage on fS=fOSC-2KHz
COMV Pin
VVS=2.3V
VG
Green Mode Ending Voltage on
COMV Pin
fS=1KHz
IV-SINK
IV-SOURCE
VV-HGH
Output Sink Current
Output Source Current
Output High Voltage
VVS=3V, VCOMV=2.5V
VVS=2V, VCOMV=2.5V
VVS=2.3V
Current-Error-Amplifier Section
VIR
II-SINK
II-SOURCE
VI-HGH
Reference Voltage
Output Sink Current
Output Source Current
Output High Voltage
VCS=3V, VCOMI=2.5V
VCS=0V, VCOMI=2.5V
VCS=0V
2.475
4.5
2.475
4.5
2.500
2.8
0.8
90
90
2.500
55
55
2.525
2.525
V
V
V
μA
μA
V
V
μA
μA
V
Gate Section
DCYMAX
www.DataSheet4VUO.cLom
VOH
VOH_MIN
tr
tf
VCLAMP
Maximum Duty Cycle
Output Voltage Low
Output Voltage High
Output Voltage High
Rising Time
Falling Time
Output Clamp Voltage
75
VDD=20V, IO=10mA
VDD=8V, IO=1mA
5
1.5
VDD=5.5V, IO=1mA
4
VDD=20V, CL=1nF
200 300
VDD=20V, CL=1nF
VDD=25V
80 150
15 18
%
V
V
V
ns
ns
V
Over-Temperature-Protection Section
TOTP
Threshold Temperature for
OTP(3)
+140
oC
Note:
3. When over-temperature protection is activated, the power system enters latch mode and output is disabled.
© 2008 Fairchild Semiconductor Corporation
FAN100 Rev. 1.0.0
6
www.fairchildsemi.com

6 Page



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共有リンク

Link :


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