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PWM Controller. FAN100 Datasheet

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PWM Controller. FAN100 Datasheet
















FAN100 Controller. Datasheet pdf. Equivalent













Part

FAN100

Description

Primary-Side-Control PWM Controller



Feature


FAN100 — Primary-Side-Control PWM Cont roller August 2008 FAN100 Primary-Sid e-Control PWM Controller Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Constant -Voltage (CV) and Constant-current (CC) Control without Secondary-feedback Cir cuitry Green Mode PWM Frequency Linearl y Decreasing Fixed PWM Frequency at 42k Hz with Frequency Hopping to Solve EMI Problem Low Startup Current: 10μ.
Manufacture

Fairchild Semiconductor

Datasheet
Download FAN100 Datasheet


Fairchild Semiconductor FAN100

FAN100; A Low Operating Current: 3.5mA Peak-Curr ent-Mode Control in CV Mode Cycle-by-Cy cle Current Limiting VDD Over-Voltage P rotection with Auto-Restart VDD Under-V oltage Lockout (UVLO) Gate Output Maxim um Voltage Clamped at 18V Fixed Over-te mperature Protection with Latch SOP-8 P ackage Available Description This high ly integrated PWM controller, FAN100, p rovides several fe.


Fairchild Semiconductor FAN100

atures to enhance the performance of low -power flyback converters. The propriet ary topology enables simplified circuit design for battery charger application s. A low-cost, smaller, and lighter cha rger results when compared to a convent ional design or a linear transformer. T he startup current is only 10µA, which allows use of large startup resistance for further power .


Fairchild Semiconductor FAN100

saving. To minimize the standby power co nsumption, the proprietary green-mode f unction provides off-time modulation to linearly decrease PWM frequency under light-load conditions. This green-mode function assists the power supply meeti ng the power conservation requirements. Using FAN100, a charger can be impleme nted with fewest external components an d minimized cost. .




Part

FAN100

Description

Primary-Side-Control PWM Controller



Feature


FAN100 — Primary-Side-Control PWM Cont roller August 2008 FAN100 Primary-Sid e-Control PWM Controller Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Constant -Voltage (CV) and Constant-current (CC) Control without Secondary-feedback Cir cuitry Green Mode PWM Frequency Linearl y Decreasing Fixed PWM Frequency at 42k Hz with Frequency Hopping to Solve EMI Problem Low Startup Current: 10μ.
Manufacture

Fairchild Semiconductor

Datasheet
Download FAN100 Datasheet




 FAN100
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




 FAN100
Application Diagram
Internal Block Diagram
Figure 2. Typical Application
www.DataSheet4U.com
VDD
Vsah
IPK
Vsah
© 2008 Fairchild Semiconductor Corporation
FAN100 Rev. 1.0.0
Figure 3. Functional Block Diagram
2
Brownout
Protection
www.fairchildsemi.com




 FAN100
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




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